# 4.8 CONTROLS, INTERLOCKS AND CABLE INSTALLATION

# (WBS 1.1.8)

# 

# 4.8.1 Controls

# 4.8.1.1 Introduction

Controls for NuMI are comprised of generally standard interface and
networking components. These include a combination of VME, IRM, CAMAC
and PLC hardware with necessary and appropriate modules to afford
monitor and control of technical equipment through ACNET, the
Accelerator Controls Network. Specific choices of interface are based on
cost, availability, reliability and ease of interface. Connection of
these interfaces to ACNET central services is accomplished by extension
of existing single and multi mode fiber cable networks.

Installation of ACNET services for NuMI includes connectivity to
accelerator time (TCLK) and beam synchronous (MIBS) clocks and to the
NuMI Beam Permit System.

ACNET consoles enable the monitor and control of accelerator operations,
including the NuMI beamline and associated technical components. While
operations are generally concentrated in the Main Control Room with the
use of these consoles, remote consoles may be connected to the extended
network. In particular, remote consoles are to be made available at
select locations to facilitate commissioning and operations as
appropriate.

**4.8.1.2 System Description: Controlled Equipment and Systems and Their
Locations**

Controls for NuMI are or will be installed at eight distinct
geographical locations. Three of these locations are already outfitted
with basic Controls infrastructure. Major items of equipment or systems
to be controlled and monitored are listed for each of the locations in
**Table 4.8-1**.

  -------------------------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------
                                   MI-60      MI-60      MI-62      MI-65      Target     MINOS      MINOS Near Absorber
                                   Service    Service    Service    Service    Hall PS    Service    Detector   Access
                                   Building   Building   Building   Building   Support    Building   Hall       Tunnel
                                   South      North                            Room                             

                                   **60S**    **60N**    **62SB**   **65SB**   **THSR**   **MSB**    **MND**    **AAT**

  **Power Supplies**                                                                                            

  Single Turn Extraction Kicker    **X**      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  Lambertsons                      ** **      **X**      ** **      ** **      ** **      ** **      ** **      ** **

  Dipole Magnets - Ramped          ** **      **X**      **X**      **X**      ** **      ** **      ** **      ** **

  Quadrupole Magnets - Ramped      ** **      **X**      **X**      **X**      ** **      ** **      ** **      ** **

  Trim Correction Elements         ** **      **X**      ** **      **X**      ** **      ** **      ** **      ** **

  Focusing Horns Including         ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **
  Stripline                                                                                                     

  Loss and Profile Monitor High    ** **      **X**      **X**      **X**      **X**      ** **      ** **      ** **
  Voltage                                                                                                       

  Near Detector Analysis Magnet    ** **      ** **      ** **      ** **      ** **      ** **      **X**      ** **

                                   ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  **Vacuum**                       ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  Primary Beam Transport -         ** **      **X**      **X**      ** **      ** **      ** **      ** **      ** **
  Including Isolation Valves,                                                                                   
  Gauges & Ion Pumps                                                                                            

  Decay Pipe (PLC)                 ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**

                                   ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  **Fluid Systems**                ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  Flourinert Cooling for           **X**      ** **      ** **      ** **      ** **      ** **      ** **      ** **
  Extraction Kickers                                                                                            

  MI-62 LCW and Pond Water Systems ** **      ** **      **X**      ** **      ** **      ** **      ** **      ** **
  (PLC)                                                                                                         

  Target & Baffle RAW System (PLC) ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Horn 1 RAW System (PLC)          ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Horn 2 RAW System (PLC)          ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Target Pile Air Cooling System   ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **
  (PLC)                                                                                                         

  MINOS LCW System (PLC)           ** **      ** **      ** **      ** **      ** **      ** **      **X**      ** **

  MINOS Sump Pumps                 ** **      ** **      ** **      ** **      ** **      **X**      **X**      ** **

  Decay Pipe Cooling RAW System    ** **      ** **      ** **      ** **      **X**      ** **      ** **      **X**
  (PLC)                                                                                                         

  Intermediate Water Cooling for   ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**
  Absorber RAW System (PLC)                                                                                     

  Absorber Cooling RAW System      ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**
  (PLC)                                                                                                         

                                   ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  **Instrumentation**              ** **      ** **      ** **      ** **      ** **      ** **      ** **      ** **

  Primary Transport Beam Position  ** **      **X**      ** **      **X**      ** **      ** **      ** **      ** **
  Monitors                                                                                                      

  Beam Profile Monitors            ** **      **X**      ** **      **X**      ** **      ** **      ** **      ** **

  Loss Monitors                    ** **      **X**      **X**      ** **      **X**      ** **      ** **      ** **

  Total Loss Monitors              ** **      ** **      **X**      ** **      ** **      ** **      ** **      ** **

  Beam Intensity Toroids           ** **      ** **      **X**      ** **      **X**      ** **      ** **      ** **

  Baffle and Target                ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **
  Instrumentation (PLC)                                                                                         

  Target Budal Monitors            ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Positioning Systems for Target   ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **
  and Horn 1                                                                                                    

  Horn 1 and 2 Module and          ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **
  Stripline Instrumentation (PLC)                                                                               

  Horn Bdot Magnetic Field Probes  ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Absorber Instrumentation (PLC)   ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**

  Hadron Monitor at Downstream End ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**
  of Decay Pipe                                                                                                 

  Muon Monitors at Muon Alcoves    ** **      ** **      ** **      ** **      ** **      ** **      ** **      **X**
  #1, #2 and #3                                                                                                 

  Beam Permit System - Process     **X**      **XX**     **X**      **X**      **XX**     ** **      ** **      ** **
  Channel Interface (7 Total)                                                                                   

                                                                                                                 

  **ACNET Connectivity**                                                                                         

  Ethernet                         **X**      **X**      **X**      **X**      **X**      **X**      **X**      **X**

  VME                              **X**      **X**      **X**      **X**      **X**      ** **      ** **      **X**

  Internet Rack Monitor - IRM      ** **      ** **      ** **      ** **      **X**      ** **      ** **      ** **

  Programmable Logic Controller -  ** **      **X**      **X**      **X**      **X**      ** **      **X**      **X**
  PLC                                                                                                           

  CAMAC                            **X**      **X**      **X**      **X**      **X**      **X**      **X**      **X**
  -------------------------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- ----------

> **Table 4.8-1** Technical Equipment Interfaced to the Control System
> versus Location

**4.8.1.3 System Description: Accelerator Clocks and NuMI Operations**

The present accelerator complex uses a number of clock systems to
control devices and to time beam transfers. Of particular interest to
NuMI operations are the following:

> **TCLK** The primary accelerator time clock is a 10 MHz clock known as
> TCLK. A TCLK event is realized by the transmission of 8 bits of data
> enveloped by a start and parity bit in the serial clock stream. TCLK
> events are designated by a two-character hexadecimal number preceded
> by a dollar sign and range from \$00 through \$FF. Six new or
> redefined TCLK events have been assigned to accommodate NuMI
> operations. These are \$23, \$A5, \$19, \$A9, \$A6 and \$A8. NuMI
> operations are planned to occur in a new Main Injector reset cycle
> signed by **TCLK \$23**. This reset cycle is unique in that it can
> simultaneously support P-Bar production and NuMI operations. In the
> dual mode, one to five batches of Booster beam may be loaded into MI
> for NuMI. The total cycle time for the Main Injector running under the
> \$23 reset is optimally established at 1.8 seconds.
>
> **MIBS** The Main Injector has a separate beam synchronous clock
> system, MIBS, that is locked in frequency to the Main Injector rf
> system. This clock, that operates at approximately 7.5 MHz (rf/7), is
> used to coordinate Main Injector transfers and beam related
> diagnostics. A most significant event on the MIBS clock is \$AA, the
> revolution marker. For the MI, the \$AA event occurs approximately
> every 10 microseconds. MIBS event \$74 has been assigned to initiate
> the extraction of 120 GeV beam for NuMI. When issued, this extraction
> event is always synchronous with respect to the MIBS \$AA revolution
> marker event.

Timing observations for the Main Injector \$29 cycle for P-Bar
Production are listed in **Table 4.8-2**. Expected timing for the Main
Injector \$23 cycle for P-Bar Production and NuMI Operations are listed
in **Table 4.8-3**. TCLK and MIBS events of interest to NuMI operations
are listed in **Table 4.8-4**.

  -------------- ---------------------------------------- ----------------- ----------
  **Timing                                                                  
  Observations                                                              
  of MI \$29                                                                
  Cycle for                                                                 
  P-Bar                                                                     
  Production                                                                
  Cycle**                                                                   

  **Event**      **Description / Comment**                **Time in         **Note**
                                                          Milliseconds**    

  \$80           3 x 15 Hz Ticks Before \$29 MI Reset or  -201.0            ** **
                 -201 ms                                                    

  \$29           Main Injector Reset                      0.0               **1**

  \$22           Start of Ramp                            89.0              

  \$25           Start of Flattop                         778.9             ** **

  MIBS \$79      Initiate P-Bar Production Beam Transfer  838.9             ** **

                 MI-52 Kicker Fire Time MIBS \$79 +       839.2             ** **
                 24.918 MR Rev                                              

  \$26           End of Beam Operations                   848.9             ** **

                 Total \$29 Cycle Time                    1,466.7           **2**

                 Flattop to Actual P-Bar Production Beam  60.3              ** **
                 Extraction                                                 

                                                                            

  **Note 1**     The \$29 to \$22 Interval Accommodates                     
                 One \$14 Booster Batch to Main Injector.                   

  **Note 2**     The Current \$29 Cycle is Judged to be                     
                 Twenty-Two 15 Hz Ticks Long or 1.467                       
                 Seconds                                                    
  -------------- ---------------------------------------- ----------------- ----------

**Table 4.8-2** Timing Observations for MI \$29 Cycle for P-Bar
Production

  -------------- --------------------------------------- ---------------- ----------
  **Expected                                                              
  Timing for MI                                                           
  \$23 Cycle for                                                          
  P-Bar                                                                   
  Production and                                                          
  NuMI                                                                    
  Operations**                                                            

  **Event**      **Description / Comment**               **Time in        **Note**
                                                         Milliseconds**   

  \$80           Signature Event for P-Bar Production    ?                **3**
                 Cycle                                                    

  \$A5           Signature Event for NuMI Beam Cycle     -0.001           **4**

  \$23           Main Injector Reset                     0.0              **5 & 6**

  \$22           Start of Ramp                           422.3            

  \$25           Start of Flattop                        1,112.2          ** **

  MIBS \$79      Initiate P-Bar Production Beam Transfer 1,172.2          ** **

                 MI-52 Kicker Fire Time MIBS \$79 +      1,172.5          ** **
                 24.918 MI Rev                                            

  MIBS \$74      Initiate NuMI Beam Extraction           1,173.3          **7**

                 I:KPS6N Kicker Fire Time MIBS \$74 +    1,173.5          **8**
                 20.xxx MI Rev                                            

  \$26           End of Beam Operations                  1,182.2          ** **

                 Total \$23 Cycle Time                   1,800.0          **9**

                 Flattop to Actual P-Bar Production Beam 60.3             ** **
                 Extraction                                               

                 Flattop to Actual NuMI Beam Extraction  61.3             ** **

                                                                          

  **Note 3**     \$80 May be Placed Before or After the                   
                 \$23, but Must be Before the \$14.                       

  **Note 4**     The \$A5 Event is Now Expected to be                     
                 Imediately Before the \$23 MI Reset.                     
                 That Stated, \$A5 May be Placed Before                   
                 or After the \$23, but Must be Before                    
                 the \$19s.                                               

  **Note 5**     The \$23 to \$22 Interval Will                           
                 Accommodate Six Booster Batches to Main                  
                 Injector. Normally a Single \$14 Batch                   
                 for P-Bar Production and 5 x \$19                        
                 Batches for NuMI.                                        

  **Note 6**     The \$29 to \$22 Interval of 89 ms is                    
                 Extended by Five 15 Hz Ticks for the                     
                 \$23 Ramp Scenario. Subsequent Times                     
                 Generally Advance by 333.3 ms.                           

  **Note 7**     Exact Placement of MIBS Extraction                       
                 Event is Subject to Observed Peak of                     
                 Longitudinal Bunch Length and Number of                  
                 Integral MI Turns of Beam After MIBS                     
                 \$74.                                                    

  **Note 8**     Time is About 1 ms After P-Bar                           
                 Production Beam Extraction When                          
                 Longitudinal Bunch Length is Peaked. 20                  
                 MI Revolutions is the Suggested                          
                 Integral Value of Delay After MIBS                       
                 \$74. \".xxx\" Fractional Turn Delay to                  
                 be Field Determined.                                     

  **Note 9**     The Expected \$23 Cycle is Judged to be                  
                 Twenty-Seven 15 Hz Ticks Long or 1.8                     
                 Seconds[^1]                                              
  -------------- --------------------------------------- ---------------- ----------

**Table 4.8-3** Expected Timing for MI \$23 Cycle for P-Bar Production
and NuMI Operations

  ---------- --------------------------------- ---------------------------------
  **NuMI                                       
  TCLK and                                     
  MIBS                                         
  EVENTS**                                     

  **TCLK**   **DEFINITION**                    **COMMENT**

  \$A5       NuMI Reset for Extracted Beam     Expected to be Closely
                                               Synchronous With and Well in
                                               Advance of NuMI Extracted Beam.
                                               Primary Reset for NuMI Ramped
                                               Devices.

  \$23       Main Injector Cycle Reset for     Usually Has Beam for Both P-Bar
             P-Bar Production and NuMI         Production and NuMI Operations.
             Operations                        But Could Have Beam for Only One
                                               Destination.

  \$14       Booster Reset for P-Bar           Normally One High Intensity
             Production Beam                   Batch.

  \$19       Booster Reset for NuMI Operations Normally One to Five Batches for
             Beam                              NuMI with Programmable Intensity.

  \$52       Beam for Previous Booster Reset   A Generic Event.
             Will Be Accelerated.              

  \$53       Beam for Previous Booster Reset   A Generic Event.
             Will Not Be Accelerated.          

  \$1F       Booster Beam About to be          A Generic Event.
             Transferred to Main Injector      

  \$22       Main Injector Ramp Begins         A Generic Event.

  \$25       Main Injector Flattop             A Generic Event.

  \$81       Reflected MIBS Event \$79         Expected to be Synchronous Within
                                               a Few Microseconds.

  \$A9       Reflected MIBS Event \$74         Expected to be Synchronous Within
                                               a Few Microseconds.

  \$27       Detected Fall of the Main         Fires the Main Injector Abort
             Injector Beam Permit              Kicker

  \$2F       Fire the Main Injector Abort      Happens Every Cycle.

  \$26       End of Beam Operations in the     All Beam Should be Gone.
             Main Injector                     

  \$A6       NuMI Beam Permit Has Fallen to    Serves to Inhibit Accelerating
             Non-Permit State                  Beam Associated With Booster \$19
                                               Reset. Also Will Inhibit
                                               Generation of MIBS \$74.

  \$A8       NuMI Beam Permit System Reset     Issued by Operator Command. Rcvd
                                               by C200 and C201 Modules. Clears
                                               Latched Inputs of C200.

  \$FA       Reflected MIBS \$ED               A Generic Event.

                                               

  **MIBS**   **DEFINITION**                    **COMMENT**

  \$AA       Main Injector Revolution Marker   Once Every 588 RF Cycles.
                                               Approximate 10 Microsecond
                                               Period.

  \$79       Initiate Transfer of 120 GeV      Reflected as TCLK \$81.
             P-Bar Prod Beam to\               
             P-Bar Tgt                         

  \$74       Initiate Transfer of 120 GeV NuMI Reflected as TCLK \$A9.
             Beam to NuMI Primary Beamline     

  \$ED       Request for a MIBS Transfer Event Reflected as TCLK \$FA. This is a
             Has Been Denied                   Generic Event. If One Expects to
                                               See \$74 or \$79 and Does Not,
                                               This \$ED Event Should Be
                                               Generated.
  ---------- --------------------------------- ---------------------------------

**Table 4.8-4** NuMI Significant TCLK and MIBS Clock Events

## 

## 4.8.1.4 System Description: NuMI Beam Permit System

The fundamental design of the NuMI Beam Permit System (NBPS) takes
advantage of already designed hardware and methodologies for Beam
Permit/Abort that were instituted in the early days of the Tevatron.
While not necessarily redundant in architecture, the NBPS is simple and
fail-safe in design.

The NBPS is realized by a dedicated fiber optic line linking all of the
distinct geographic locations of NuMI controls. Its operation closely
resembles that of a simple flip-flop being in either a beam permit or
inhibit state. Inputs for the beam inhibit conditions are many, with
each being latched. Bringing the NBPS communication line to the beam
permit state is singularly accomplished by operator initiation of a
specific TCLK event, but only after beam inhibit conditions have been
cleared. The state of the line is examined at two significant locations.
The NBPS state is examined at MI-60 as a necessary condition to launch
the MIBS \$74 extraction event and to allow the firing of the NuMI
single turn extraction kicker. The NBPS state is also examined at the
Main Control Room as an input to the Beam Switch Sum Box (BSSB) as one
of the necessary conditions to allow acceleration of beam in the Linac
that is destined for NuMI.

The NBPS distinguishes itself from other installed permit systems in the
number and type of inputs. Specifically it is intended to monitor as
many technical components and sub-systems as practical that portend
successful operation of the NuMI beamline and meaningful operations. The
NBPS is especially unique in that it examines data for proper state and
operation both closely before and immediately subsequent to NuMI beam
extraction. Central to this unique capability is the development of the
Process Channel Interface (PCI) and its companion ACNET interface, the
CAMAC C204 module. The C204/PCI facility is capable of examining analog
and digital inputs with respect to down loaded limit values. The
decision process is localized, prompt and not centrally reliant on ACNET
services for execution. ACNET services are required for set-up.

The following is a condensed list of significant inputs to the NuMI Beam
Permit System:

-   NuMI Radiation Safety System

-   Main Injector Performance Parameters

-   Single Turn Extraction Kicker Power Supply

-   Dipole and Quadrupole Magnet Power Supplies

-   Beam Loss Monitors

-   Total Beam Loss Monitors

-   Horn Power Supply

-   Low Conductivity and Radioactive Water Systems

-   Extraction Beamline Vacuum System Isolation Valves

-   Temperature Monitors of Various Technical Components

## 4.8.2 Interlocks

## 4.8.2.1 Introduction

The Radiation Safety System (RSS) for NuMI encompasses the underground
enclosure with the exception of the following areas. These areas are to
be accessible during NuMI beam operations.

-   MI-65 Access Shaft Including Stairwell and Elevator

-   MI-65 Below Ground Elevator and Shaft Landing Area

-   Target Hall Power Supply and RAW Support Rooms

-   MINOS Access Shaft Including Elevators

-   MINOS Below Ground Elevator Landing Area

-   MINOS Below Ground Shaft Landing Area

-   Absorber Access Tunnel up to the Absorber Area

-   MINOS Experimental Hall Access Tunnel

-   MINOS Experimental Hall.

Areas of exclusion during NuMI beam operations are divided into eight
separated areas with most being under the domain of the NuMI RSS. All
areas are contiguous with the exception of three Muon Alcoves. **Table
4.8-5** indicates the NuMI interlocked areas and barriers.

  --------- -------------------------------------------- --------- --------------
  **Area    **Area Description**                         **RSS**   **Associated
  \#**                                                             Barrier**

  Area 1    Upstream Carrier Tunnel                      Main Inj  G1 D2

  Area 2    Downstream Carrier Tunnel, Pre-Target        NuMI      D2 G3 D4
            Enclosure and Target Hall, Including                   
            Entrance Labyrinth                                     

  Area 3    Decay Pipe Passageway (Mini-Loop)            NuMI      D4 G5

  Area 4    Absorber Hall Including Upstream End of      NuMI      G5 D6
            Absorber Access Tunnel, Entrance Labyrinth             
            and Muon Alcove #1                                     

  Area 5    Muon Alcove #2                               NuMI      D7

  Area 6    Muon Alcove #3                               NuMI      D8

  Area 7    Muon Alcove #4                               NuMI      D9

                                                                   

  **Gate or **Barrier Location**                         **RSS**   **Area**
  Door#**                                                          

  Gate 1    Upstream End of Carrier Tunnel               MI        Area 1

  Door 2    Fire Door and CMU Wall at Mid-Point of       MI + NuMI Areas 1 & 2
            Carrier Tunnel                                         

  Gate 3    Beginning of Entrance Labyrinth to           NuMI      Area 2
            Pre-Target and Target Hall at Bottom of                
            MI-65 Shaft Stairway                                   

  Door 4    Fire Door at Upstream End of Decay Pipe      NuMI      Areas 2 & 3
            Passageway                                             

  Gate 5    Gate at Downstream End of Decay Pipe         NuMI      Areas 3 & 4
            Passageway                                             

  Door 6    Fire Door Across Absorber Access Tunnel      NuMI      Area 4
            Between Absorber Hall and Muon Alcove #2               

  Door 7    Entrance to Muon Alcove #2                   NuMI      Area 5

  Door 8    Entrance to Muon Alcove #3                   NuMI      Area 6

  Door 9    Entrance to Muon Alcove #4\                  NuMI      Area 7
            (This Door May Be Simply Locked Closed by              
            RSO Lock)                                              
  --------- -------------------------------------------- --------- --------------

**Table 4.8-5** NuMI Interlocked Areas and Barriers

The NuMI RSS must be cleared for beam to be transmitted down the NuMI
beamline. The state of the RSS is also an input to the NuMI Beam Permit
System. While not integral to the NuMI RSS, radiation "stack" monitors
sample and record levels of activated air from the Pre-Target, Target
Hall and Absorber areas.

## 4.8.2.2 System Description: Critical Devices

The critical devices for the NuMI area have been established as the
**Lambertson** and **HV101** magnet strings in the Main Injector
enclosure Q608 to Q611 area. Power supplies for these devices are
located at the North end of the MI-60 Service Building.

**Lambertsons** - There are two power supplies at the North end of the
MI-60 equipment gallery for the three Lambertson magnets located in the
MI enclosure by Main Injector quadrupole Q608. The first Lambertson
supply, I:LAM60, powers the first Lambertson magnet immediately upstream
of Q608. The second supply, I:LAM61, powers the two Lambertsons
positioned immediately downstream of Q608. Both of these two supplies
are considered as the first of two critical devices for NuMI. A single
AC contactor for these supplies is located nearby on the East wall of
the equipment gallery and is controlled by the first Critical Device
Controller of the NuMI RSS.

**HV101** - The second critical device is the HV101 string of six EPB
magnets located between Q609 and Q612. The three power supplies for
HV101 are located in the North power supply room of MI-60. An AC
contactor for these supplies is located nearby on the South wall of the
power supply room and is controlled by the second Critical Device
Controller of the NuMI RSS.

## 4.8.2.3 System Description: Search and Secure Areas

The NuMI beamline spans two radiation safety systems, the first being
the **existing Main Injector RSS** and then the new **NuMI RSS**. The
boundary between the two systems is the (Hobbit) door located at the
mid-point of the Carrier Tunnel. The upstream end of the Carrier Tunnel
(Upper Hobbit) is to be guarded by a separately accessible mini-loop so
as to avoid necessity of routine search and secure of this area. The
downstream end of the Carrier Tunnel (Lower Hobbit) is associated with
the NuMI RSS. In that the Carrier Tunnel is to be considered an
alternate emergency exit for personnel, installed gates or doors must be
capable of being opened without necessity of regular access keys.

From the MI-65 Service Building, the main area of the NuMI RSS includes
the downstream Carrier Tunnel, Pre-Target enclosure, Target Hall and the
labyrinth access to these areas. These are the areas subject to a normal
search and secure procedure. From the Target Hall, there is also access
to the Decay Pipe passageway. This passageway is approximately 2,200
feet in length on the East side of the concrete embedded Decay Pipe.
There is a fire door at its mid-point that serves as a boundary between
the MI-65 and MINOS fire protection systems. (The mid-point door also
serves to isolate the MI-65 and MINOS air circulation systems.) The
downstream end of this passageway terminates at the Absorber Hall. The
Decay Pipe passageway is guarded as a separately accessible area so as
to avoid necessity of routine search and secure of this area. As is the
case for the Carrier Tunnel, the Decay Pipe passageway is considered an
alternate emergency exit for personnel. The associated doors and gates
are capable of being opened without necessity of regular access keys.

One or more radiation monitoring scarecrows will be placed in the
Carrier Tunnel and or Pre-Target regions and connected to the NuMI RSS.
Scarecrow placement here will preclude repetitive higher loss operation
of the NuMI beamline in these areas.

The MI-65 shaft, its stairwell, the elevator landing area, the shaft
landing area and Target Hall support rooms may be occupied during NuMI
operations. Though not part of the NuMI RSS, the RAW support room is
expected to have some level of access control due to expected activation
at the de-ionization bottles associated with the RAW systems.

From the MINOS Service Building, the main areas of the NuMI RSS include
the Muon Alcoves, the very upstream end of the Absorber Access Tunnel
and the Absorber Hall itself. The Absorber Hall enclosure area
accommodates entry to the Decay Pipe passageway. The MINOS shaft, its
elevator landing area, the shaft landing area, most of the Absorber
Access Tunnel and all downstream areas, including the MINOS Near
Detector Experimental Hall and its access tunnel, may be occupied during
NuMI operations.

There are four entry points to the NuMI radiation area from the Absorber
Access Tunnel. The first three are at entrances to the Muon Alcoves (No.
4, No. 3 and No. 2), each being a dead end for access to muon detectors
positioned in the beam flux path. The two most upstream of the three
alcoves (No. 2 and No. 3) house arrays of muon detectors. Beyond the
alcoves and moving upstream toward the Absorber, there is a fire door
that is the fourth entry point. Immediately South of this interlocked
door is the access labyrinth to the Absorber Hall. Passing through the
Absorber Hall area (an area that includes Muon Alcove No. 1), there is
an access gate to the downstream end of the Decay Pipe passageway.
Access to the Decay Pipe passageway is to be supported by a separate
mini-loop to preclude necessity of routine search and secure. The most
upstream end of the Absorber Access Tunnel houses Decay Pipe vacuum
equipment, RAW skids for the Absorber and Decay Pipe Cooling water
systems and electrical equipment.

The Absorber Access Tunnel, Absorber Hall and the Decay Pipe passageway
are considered as an alternate emergency exit for personnel in the
downstream MINOS areas. The associated doors and gates are capable of
being opened without necessity of regular access keys.

It is expected that no more than two personnel will be required to
satisfactorily search and secure areas in the domain of the NuMI
Radiation Safety System.

## 4.8.2.4 System Description: Electrical Safety System for NuMI

Electrical hazards from exposed conductors and connections exist in the
NuMI beamline from point of extraction to the magnetic focusing horns.
These hazards are typically associated with the beamline magnetic
elements such as dipole and quadrupole magnets. Such hazards are also
associated with the extraction kicker, Lambertsons, and horns. **The
Electrical Safety System (ESS)** extensions of both the Main Injector
and NuMI RSS provide permitting inputs to associated power supplies to
partially mitigate the hazard of exposed conductors that are not
otherwise guarded. The MI ESS connects to supplies in MI-60 and MI-62,
while the NuMI ESS connects to supplies at the MI-65 area, both above
and below ground. Trim element conductors and connections are guarded
and connection of their associated power supplies to either ESS is not
necessary.

Accommodating access into the Main Injector and NuMI stub is further
provided by connection of selected supplies to the "Beamline" Feeder
96/97. This feeder is de-energized during MI access. Technical power
supplies at the MI-65 location are powered from conventional power
feeders through a single 2000 kVA pulsed power transformer. Opening of a
single point disconnect of 13.8 kV power to this transformer facilitates
access to the downstream end of the Carrier Tunnel, Pre-Target enclosure
and Target Hall. For purposes of Electrical Safety, this disconnect need
not be opened for access to the Muon Alcoves, Absorber Hall or Decay
Pipe passageway.

## 4.8.3 Cables

Cables associated with the NuMI Project are generally quite conventional
in nature. The uniqueness of the NuMI underground enclosure, however,
requires utilization of fire retardant cable insulation or jacketing
unless the cables are installed in conduit. Certain cables in the high
radiation environment of the target chase and absorber have suitably
radiation tolerant insulation. Cabling between MI-65 and MINOS areas is
accomplished via buried communication duct pathways. All cables are
labeled in accord with Accelerator Division standards.

**4.8.3.1 System Description: General Cable Plant**

The general cable plant of the NuMI Project has two fundamental aspects.
The first aspect involves connectivity of both MI-65 and MINOS Service
Buildings to established Laboratory infrastructure. An additional
attribute here is the connection of certain services between these two
service buildings. The second aspect of the cable plant involves
connectivity between MI-60, MI-62 and MI-65 and MINOS Service Buildings
and technical and experimental equipment in the accelerator and beamline
enclosures.

The established Laboratory infrastructure required at the MI-65 and
MINOS Service Buildings includes the following. These elements of
infrastructure are already available at the MI-60 and MI-62 Service
Buildings.

-   Accelerator Radiation Safety System

-   Accelerator Controls Network (ACNET)

-   Wide Area Network Connectivity including access to Fermilab Central
    Analysis and Data Storage Facilities

-   CATV

-   Fire & Utility Monitoring System (FIRUS)

-   Telephone Communications (POTS)

-   MI-62, MI-65 and MINOS Fire Detection System Connectivity

The second aspect of the cable plant includes the following.

-   Extension of above infrastructure (excluding Fire Detection System)
    to the new underground areas as appropriate

-   Connections between various Power Supplies and enclosure Beamline
    Elements (Kickers, Lambertsons, Dipole and Quadrupole Magnets, Trim
    Elements)

-   Connections between MI-62 based Vacuum System Electronics and Ion
    Pump Power Supplies and Beamline Vacuum Equipment (Ion pumps,
    Gauges, Isolation Valves)

-   Connections between service building based electronics and beamline
    instrumentation (Beam Position Detectors, Beam Toroids, Profile
    Monitors, Regular and Total Loss Monitors)

-   Localized connections in and between technical, scientific
    components and infrastructure hardware

**4.8.3.2 System Description: MI-65 and MINOS Access Shaft Cables**

At the MI-65 access shaft, cables are generally installed in cable tray.
At the MINOS access shaft, all cables are installed in conduit. The
depth of the MINOS shaft, approximately 350 feet, demands that cables
have several points of support so as not to exceed cable tensile
strength. Advantage is being taken of the "Outfitting" civil
construction work activities. These involve similar installations in the
shafts for the AC power distribution system, fire detection and utility
infrastructure. Adding the installation of technical and infrastructure
cabling to the Outfitting scope of work is simplifying installation.
**Table 4.8-6** and **Table 4.8-7** summarize the various cables
installed under the Service Building and Outfitting subcontract for the
MI-65 and MINOS Access Shafts respectively.

  --------------- ---------- ------------------- ------------- ------------ ----------- ----------------- ---------------
  **MI-65 Service                                                                                         
  Building Shaft                                                                                          
  Wire and                                                                                                
  Cable -                                                                                                 
  Installed Under                                                                                         
  SB&O                                                                                                    
  Subcontract**                                                                                           

  **Quantity**    **Avg      **Type of Cable**   **Start**     **Finish**   **Route**   **Utilization**   **Provided &
                  Length**                                                                                Used By**

  14              491        Insulated Copper    Electrical    Two          Power Tray  E:V118 String of  Subcontractor
                             Building Wire\      Room          Locations                Four B2 Dipoles   WBS 1.1.3
                             500 MCM THHN Black                in\                                        
                                                               Pre-Target                                 

  20              583        Insulated Copper    Electrical    Varied       Power Tray  Q113-Q121 Quads   Subcontractor
                             Building Wire\      Room          Locations in             and H117 Dipole   WBS 1.1.3
                             1/0 THHN Black                    Carrier                                    
                                                               Tunnel &                                   
                                                               Pre-Target                                 

  9               585        Shielded Twisted    Electronics   Varied       Power Tray  Trim Elements     Fermilab WBS
                             Pair 10 AWG         Room          Locations in                               1.1.3
                                                               Carrier                                    
                                                               Tunnel &                                   
                                                               Pre-Target                                 

  24              536        3/8\" Low Loss      Electronics   Varied       Signal Tray Beam Position     Fermilab WBS
                             Heliax Coax\        Room          Locations in             Monitors &        1.1.1
                             Andrew LDF2RN-50                  Carrier                  Calibration       
                                                               Tunnel &                 Signals           
                                                               Pre-Target                                 

  12              555        Amphenol Spectra    Electronics   Varied       Signal Tray Profile Monitor   Fermilab WBS
                             Strip\              Room          Locations in             Signal            1.1.1
                             Round \'n\' Flat\                 Carrier                                    
                             #843-159-2801-050                 Tunnel &                                   
                                                               Pre-Target                                 

  2               500        Multiconductor, 19  Electronics   Pre-Target   Power Tray  Profile Monitor   Fermilab WBS
                             Conductor, 18 AWG,  Room                                   Motors\           1.1.1
                             Alpha 1898/19C                                             Trunk             

  4               500        Multiconductor, 9   Electronics   Pre-Target   Signal Tray Profile Monitor   Fermilab WBS
                             Shielded Twisted    Room                                   LVDTs\            1.1.1
                             Pairs, 18 AWG,\                                            Trunk             
                             Alpha 6025C                                                                  

  1               500        Multiconductor, 15  Electronics   Pre-Target   Signal Tray Profile Monitor   Fermilab WBS
                             Shielded Twisted    Room                                   Limit Switches    1.1.1
                             Pairs, 22 AWG,\                                            Trunk             
                             Alpha 6018C                                                                  

  1               500        Multiconductor, 15  Electronics   Pre-Target   Signal Tray Magnet Klixons\   Fermilab WBS
                             Shielded Twisted    Room                                   Trunk             1.1.3
                             Pairs, 22 AWG,\                                                              
                             Alpha 6018C                                                                  

  1               300        Fiber Optic Trunk   Electronics   Target Hall  Signal Tray Networking        Fermilab WBS
                             Cable\              Room          PS\                                        1.1.8
                             24 Fiber Singlemode               Support Room                               

  1               300        Fiber Optic Trunk   Electronics   Target Hall  Signal Tray Controls          Fermilab WBS
                             Cable\              Room          PS\                                        1.1.8
                             36 Fiber Multimode                Support Room                               

  2               300        Multiconductor, 20  Electronics   Target Hall  Signal Tray Radiation Safety  Fermilab WBS
                             Conductor, 18 AWG,  Room          PS\                      System            1.1.8
                             Custom, Blue Jkt                  Support Room                               

  2               300        Multiconductor, 4   Electronics   Target Hall  Signal Tray RSS Data Links\   Fermilab WBS
                             Shielded Twisted    Room          PS\                      & Audio Warning   1.1.8
                             Pairs, 18 AWG,                    Support Room                               
                             Custom, Blue Jkt                                                             

  1               300        Multiconductor, 15  Electrical    Target Hall  Signal Tray FIRUS Utility     Fermilab WBS
                             Shielded Twisted    Room          PS\                      Monitors\         1.1.8
                             Pairs, 22 AWG,\                   Support Room             & Spare Utility   
                             Alpha 6018C                                                                  

  2               300        RG213/U 50 Ohm      Electronics   Target Hall  Signal Tray EAV-2 and EAV-3\  Fermilab WBS
                             Coax\               Room          PS\                      Stack Rad         1.1.8
                             Red Jkt, Stk                      Support Room             Monitors          
                             #1170-044500                                                                 

  1               300        Multicoax, 16 x     Electronics   Target Hall  Signal Tray Profile Monitor   Fermilab WBS
                             RG58C/U,\           Room          PS\                      Clearing HV &     1.1.1
                             50 Ohm, Custom,                   Support Room             Spare Utility     
                             Orange Jacket                                                                

  2               300        CAC-6 75 Ohm Coax   Electronics   Target Hall  Signal Tray CATV Monitors     Fermilab WBS
                                                 Room          PS\                                        1.1.8
                                                               Support Room                               

  4               300        RG59/U 75 Ohm Coax  Electronics   Target Hall  Signal Tray CATV Cameras      Fermilab WBS
                                                 Room          PS\                                        1.1.8
                                                               Support Room                               

  1               300        Multiconductor, 25  Electrical    Target Hall  Signal Tray Telecom POTS      Fermilab WBS
                             Twisted Pairs, 24   Room Inside   PS\                                        1.1.8
                             AWG, Teflon Jacket  Terminal      Support Room                               
  --------------- ---------- ------------------- ------------- ------------ ----------- ----------------- ---------------

**Table 4.8-6** MI-65 Access Shaft Cables Installed Under SB&O
Subcontract

  --------------- ---------- ----------------- -------------- ------------ ----------- ----------------- ------------
  **MINOS Service                                                                                        
  Building Shaft                                                                                         
  Wire and                                                                                               
  Cable -                                                                                                
  Installed Under                                                                                        
  SB&O                                                                                                   
  Subcontract**                                                                                          

  **Quantity**    **Length   **Type of Cable** **Start**      **Finish**   **Route**   **Utilization**   **Provided &
                  Each**                                                                                 Used By**

  1               725        Fiber Optic Trunk Mechanical -   MINOS Hall   Signal      Network Fiber     Fermilab\
                             Cable\            Electrical                  Conduit                       WBS 1.1.8
                             24 Fiber          Area                                                      
                             Singlemode                                                                  

  1               725        Fiber Optic Trunk Mechanical -   MINOS Hall   Signal      Controls Fiber    Fermilab\
                             Cable\            Electrical                  Conduit                       WBS 1.1.8
                             36 Fiber          Area                                                      
                             Multimode                                                                   

  1               725        Multiconductor,   Mechanical -   MINOS Hall   Signal      FIRUS Utility     Fermilab\
                             15 Shielded       Electrical                  Conduit     Monitors\         WBS 1.1.8
                             Twisted Pairs, 22 Area                                    & Spare Utility   
                             AWG,\                                                                       
                             Alpha 6018C                                                                 

  4               725        CAC-6 75 Ohm Coax Mechanical -   MINOS Hall   Signal      CATV Monitors     Fermilab\
                                               Electrical                  Conduit                       WBS 1.1.8
                                               Area                                                      

  6               725        RG59/U 75 Ohm     Mechanical -   MINOS Hall   Signal      CATV Cameras      Fermilab\
                             Coax              Electrical                  Conduit                       WBS 1.1.8
                                               Area                                                      

  3               725        RG213/U 50 Ohm    Mechanical -   MINOS Hall   Signal      Spare Utility     Fermilab\
                             Coax\             Electrical                  Conduit                       WBS 1.1.8
                             Red Jkt, Stk      Area                                                      
                             #1170-044500                                                                

  1               725        Multicoax, 16 x   Mechanical -   MINOS Hall   Signal      Spare Utility     Fermilab\
                             RG58C/U,\         Electrical                  Conduit                       WBS 1.1.8
                             50 Ohm, Custom,   Area                                                      
                             Orange Jacket                                                               

  1               725        Multiconductor,   Mechanical -   MINOS Hall   Signal      Telecom POTS      Fermilab\
                             25 Twisted Pairs, Electrical                  Conduit                       WBS 1.1.8
                             24 AWG, Teflon    Area                                                      
                             Jacket                                                                      

  2               1100       Multiconductor,   Mechanical -   Upstream End Signal      Radiation Safety  Fermilab\
                             20 Conductor 18   Electrical     of Absorber  Conduit and System            WBS 1.1.8
                             AWG, Custom, Blue Area           Access       Tray                          
                             Jkt                              Tunnel                                     

  2               1100       Multiconductor, 4 Mechanical -   Upstream End Signal      Radiation Safety  Fermilab\
                             Shielded Twisted  Electrical     of Absorber  Conduit and System Data Links WBS 1.1.8
                             Pairs, 18 AWG,    Area           Access       Tray                          
                             Custom, Blue Jkt                 Tunnel                                     
  --------------- ---------- ----------------- -------------- ------------ ----------- ----------------- ------------

**Table 4.8-7** MINOS Access Shaft Cables Installed Under SB&O
Subcontract

**4.8.3.3 System Description: Communication Ducts**

The MI-65 Service Building connects directly to the Main Injector
communication duct system that generally follows Indian and Kautz Road
pathways at communications manhole CMH-CUB-1. This system also affords
connection to the Accelerator Cross Gallery and the new MI-12 MiniBooNE
Target Building. While the MI system has connections to MI-8 and MI-62,
more direct communication duct paths have been installed that connect
MI-65 to both MI-62 and MI-8. Infrastructure requirements at the MI-65
Service Building are primarily supported by installation of cables
between MI-62 and MI-65. **Table 4.8-8** lists the cables to be found in
the MI-62 to MI-65 communications ducts.

  ---------- ------------------------ -----------------------------------------
  **Comm                              
  Duct                                
  Cables                              
  from MI-62                          
  to MI-65                            
  Service                             
  Building                            
  900 Feet**                          

                                      

  **Qty**    **Type of Cable**        **Utility**

  1          Fiber Optic Trunk 24     Accelerator Computer Network
             Singlemode Fibers        

  3          Fiber Optic Trunks 12    Accelerator Controls including:
             Multimode Fibers Each    

                                      Main Injector CAMAC Link

                                      Tevatron Clock (TCLK)

                                      Main Inj Beam Sync (MIBS)

                                      Machine Data (MDAT)

                                      NuMI Beam Permit

                                      DDC Utility Monitor System

  2          20 Conductor 18 AWG      Safety Interlock
             Cables                   

  2          Four Twisted Pair        Safety Data Links and Audio Warning
             Cables, 18 AWG           

  1          Three Twisted Pair, 18   ES&H Radiation Mux Trunk
             AWG                      

  3          1/2\" 75 Ohm Hardline    FIRUS
             Coax Cables              

  3          1/2\" 75 Ohm Hardline    CATV
             Coax Cables              

  1          Four Twisted Pairs 16    NuMI Fire Protection Connectivity between
             AWG                      MI-62 and MI-65 Bldgs

  1          Telephone Trunk Cable 50 Telephone Communications (POTS)
             Pair 24 AWG              
  ---------- ------------------------ -----------------------------------------

**Table 4.8-8** Communication Duct Cables Between MI-62 and MI-65

A single communications duct has been installed between MBD and MI-12.
Multiple ducts have been installed between MI-12 and the Main Injector
system proximate to MI-10. These ducts have installed cables for
infrastructure, MiniBooNE specific applications, and NuMI specific
applications. **Table 4.8-9** lists the NuMI related cables to be found
in the communication duct system connecting MI-65 to MiniBooNE Detector
Building (MBD).

  ----------- -------------------------------- --------------------------------
  **MI-65 to                                   
  MiniBooNE                                    
  Detector                                     
  Building                                     
  4,000                                        
  Feet**                                       

                                               

  **Qty**     **Type of Cable**                **Utility**

  2           20 Conductor 18 AWG Cables       Safety Interlock

  2           Four Twisted Pair Cables 18 AWG  Safety Data Links and Audio
                                               Warning

  1           Four Twisted Pairs 16 AWG        NuMI Fire Protection
                                               Connectivity between MI-65 and
                                               MINOS Bldgs
  ----------- -------------------------------- --------------------------------

**Table 4.8-9** Communication Duct Cables Between MI-65 and MBD

The MINOS Service Building is directly served by a communication duct
system installed under the NuMI Site Preparation and Service Building
and Outfitting civil subcontracts. This system has connection to the
MiniBooNE Detector Building and the MiniBooNE communication duct system
that connects MI-10, MI-12 and MBD. This system also has connection to
the Lederman Science Education Center and the accelerator footprint
area. The path to Science Center facilitates connection to telephone,
FIRUS, CATV and computing network infrastructures. This basic
infrastructure has already been installed at the MBD. Supporting MINOS
infrastructure has been accomplished by extension of the MBD
infrastructure. **Table 4.8-10** lists the cables to be found in the
communications ducts between MBD and the MINOS Service Building.

  ------------- -------------------------- ----------------------------------------
  **MiniBooNE                              
  Detector                                 
  Building to                              
  MINOS Service                            
  Building                                 
  1,600 Feet**                             

                                           

  **Qty**       **Type of Cable**          **Utility**

  1             Fiber Optic Trunk 24       Accelerator Computer Network Including
                Singlemode Fibers          Wide Area Network Connectivity and
                                           Access to Fermilab Central Analysis and
                                           Data Storage Facilities

  3             Fiber Optic Trunks 12      Accelerator Controls including:
                Multimode Fibers Each      

                                           Main Injector CAMAC Link

                                           Tevatron Clock (TCLK)

                                           Main Inj Beam Sync (MIBS)

                                           Machine Data (MDAT)

                                           NuMI Beam Permit

                                           DDC Utility Monitor System

  2             20 Conductor 18 AWG Cables Safety Interlock

  2             Four Twisted Pair Cables,  Safety Data Links and Audio Warning
                18 AWG                     

  3             1/2\" 75 Ohm Hardline Coax FIRUS (Sourced from Science Education
                Cables                     Building and Accelerator Cross Gallery)

  3             1/2\" 75 Ohm Hardline Coax CATV (Sourced from Science Education
                Cables                     Building and Accelerator Cross Gallery)

  1             Telephone Trunk Cable 50   Telephone Communications (POTS)\
                Pair 24 AWG                (Sourced from Science Education Building
                                           Area and Accelerator Cross Gallery)

  1             Four Twisted Pairs 16 AWG  NuMI Fire Protection Connectivity
                                           between MI-65 and MINOS Bldgs
  ------------- -------------------------- ----------------------------------------

**Table 4.8-10** Communication Duct Cables Between MBD and MINOS Service
Building

[^1]: The cycle time was discussed at the 4/12/04 installation/L3
    Managers' meeting. Bruce Baller reiterated that the baseline cycle
    time is 1.87 seconds---not 1.8 seconds. The meaning of this is that
    project funds should not be expended to reduce the cycle time from
    1.87 seconds to 1.8 seconds.