# Presentation: 747850

## SPEAR 3 Instrumentation and Control Systems

-   Beam Monitoring and Feedback Systems
-   Timing System
-   Machine Protection Systems
-   Personnel Protection Systems
-   Cable Plant

***SPEAR 3 Instrumentation and Control Systems***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Slide 2

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Computer Control System

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Orbit Control with Matlab and EPICS Channel Access

***Orbit Control with Matlab and EPICS Channel Access***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Matlab-based Accelerator Toolbox and Simulator 

- H-V coupling error analysis

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## VME Crates and CPUs

***VME Crates and CPUs***

**VGM5 VME Dual PPCG4/G3 CPU Board (Synergy)**
- Dual or single CPUs in a single slot solution
- Advanced PowerPC G4/G3 architecture
- 300-466 MHz CPU speed
- Backside L2 cache 1 or 2 MB per CPU
- PØ-PCI(TM) secondary data bus, ~264 MB/s
- 16-512 MB high-speed SDRAM
- Up to 9 MB Flash
- Supports industry-standard PMC I/O
- Autosensing 10/100Base-TX Ethernet
- Two serial ports standard; SCSI option
- 4-digit clock/calendar chip is Y2K compliant
- Supports VxWorks, Linux
- Supports RACEway with PXB2 PMC module
- VME64x support
- VME Speedway doubles non-block transfer rate
- Conformal coating option

**VME Crates  (Wiener)**
- 21 slots,  6U VME cards
- 3U space for fan tray and plenum chamber  Card guides and ejector rails IEEE 1101.10
- Monolithic backplane VME64x or VIPA
- Microprocessor controlled fan-tray unit UEL
-    6020 with high efficient DC-fans (3 ea.),
-   alphanumeric display, variable speed fan
- Temperature control, front or bottom air inlet
- Up to 8 temperature sensors in bin area with
-    network option for remote monitoring and
-    control (CAN-bus)
- Remote CPU reset capability
- Used at SLAC, BNL, CERN, BESSY, etc.

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Beam Monitoring and Feedback Systems

***Beam Monitoring and Feedback Systems***

**New for SPEAR 3:**
- BPM Processing System
- Orbit Feedback System
- DCCT
- Scraper Controls
- Tune Monitor
- Synchrotron Light Monitor
- Quadrupole Modulation System

**From SPEAR 2:**
- Upgraded injection monitors
- Longitudinal Bunch Phase Monitor
- Transverse Bunch Phase Monitor

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processing and Orbit Feedback System

***BPM Processing and Orbit Feedback System***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processing

***BPM Processing***
***Remote Crate***
***(1 of 4)***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Orbit Feedback Performance

***Orbit Feedback Performance***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM and Orbit Corrector Locations

***BPM and Orbit Corrector Locations***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processing and Orbit Feedback Performance Specifications

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processing and Orbit Feedback Component Development

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processor

***BPM Processor***

- single-bunch
-  response

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM Processing - IF Processor

***BPM Processing - IF Processor***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## BPM RF-IF Processor Options

- 4:1 button MUX
- no BPM MUX

- no button MUX
- 4:1 BPM MUX
- 1st turn/singleturn BPM measurement

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Slide 17

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Orbit Feedback Modeling and Programming

***Orbit Feedback Modeling and Programming***

**MATLAB/Simulink**

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Machine Protection Systems

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Orbit Interlock

**	****     ****Specifications**
- Number of BPMs		20
- Processing frequency		476.3 MHz
- Beam current range (nom)		5-500 mA
- Resolution (>5 mA)		<50 m
- Accuracy (wrt quad center)		<100 m
- Dynamic range (intensity)		>60 dB
- Channel isolation		>60 dB
- Beam abort time (via RF system)	<1 ms

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Beam Containment System

***Beam Containment System***
***Long Ion Chamber (LION)***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Quadrupole Modulation System

***Quadrupole Modulation System***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## DCCT

**Parametric Current Transformer (Bergoz)**
- 1 A full scale
- 0.5 A resolution (1s integration)
- Dynamic range > 2x107
- Absolute accuracy < 0.05%
- Linearity error < 0.01%
- DC -100 kHz
- Output +/- 10V bipolar
- 113 or 175 mm ID

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Tune Monitor

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Synchrotron Light Monitor

***Synchrotron Light Monitor***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## SPEAR 3 Timing and RF Signal Generator System

**SPEAR RF:**		fSPrf = 372 x fSPrev = 476.300 MHz	**BPM LO:**		fLO = 385 x fSPrev = 492.935 MHz
**Booster RF:**	 	fBrf = 280 x fSPrev = 358.505 MHz	**BPM IF:**	 	fIF = 13 x fSPrev = 16.645 MHz
**SPEAR revolution freq:**	fSPrev = 1.2804 MHz		**IF digitizing clock:**		fIFclk = 50 x fSPrev = 64.020 MHz
- 					**Streak camera clock: ****	**fSC = fSPrf/4 = 93 x fSPrev = 119.075 MHz

- Wenzel, Inc.

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Injection Timing System

-  Phase-lock Booster RF  to SPEAR RF:
-       	CBoo/CSPEAR = 4/7
- 	hSP = 372    hBoo = 160    fBoo/fSPEAR = 70/93
-       	fSP = 476.300 MHz    fBoo = 358.505 MHz
** **Discrete bucket-dependent phase shift of fBoo**:**
-       N+1 = N + 360o x 70/93 = N + 271o = N - 89o

***Injection Timing System***

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## SPEAR 3 Master Oscillator

***SPEAR 3 Master Oscillator***

**PTS 500**

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001

## Cable Tray Routes

- SPEAR 3 Upgrade                        SSRL/SLAC                      January 2001