LARP: Magnet-Connection Interface Definitions for TQC01

**Authors: N. Andreev, J. Blowers, R. Bossert, S. Feher, F. Lewis, M.
Whitson (FNAL)**

Review History:

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  Last Reviewed:                                       Date:

  Approved for Trial:                                  Date:

  Final Approval:                                      Date:
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\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-- TABLE OF
CONTENTS \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\--

1.0 PURPOSE OF Document: [3](#purpose-of-document)

2.0 General Specifications [3](#general-specifications)

3.0 MECHANICAL INTERFACES [3](#mechanical-interfaces)

4.0 ELECTRICAL INTERFACES [5](#electrical-interfaces)

5.0 DIAGNOSTIC DEVICE CALIBRATIONS [9](#diagnostic-device-calibrations)

6.0 KNOWN ISSUES [10](#known-issues)

# PURPOSE OF Document:

The purpose of this document is to communicate the all interfaces for
magnet TQC01.

# General Specifications

TQC01 is the first "Technological Quadrupole" using the collared coil
design (same design as the LHC IR quadrupoles, i.e. collar and stainless
steel shell; low axial preload). The purpose is to compare the two
prevalent designs for Nb3Sn magnets (the other design is referred to as
TQS and uses an aluminum shell over an iron yoke; high axial preload).

Table 1 is a summary of the TQC parameters.

  ----------------------------------- -----------------------------------
  Item                                Value

  Length                              46.750 inches

  Mass                                2260 lbs

  Outer Diameter                      16 11/16 inches

  Aperture                            90mm

  Type                                Cos2θ

  Strand                              MJR

  Maximum current                     

  Nominal Field Gradient              200 T/m

  Peak Field Gradient                 215-265 T/m

  Peak Coil Field                     11-13 T

  Total resistance (room temp.)       0.71915 Ω

  L (1KHz)                            2.0944 mH

  Q (1KHz)                            2.34

  L (20 Hz)                           3.3247 mH

  Q (20 Hz)                           0.57

  1 KV Hipot (coil to ground)         0.05 μA

  1 KV Hipot (heaters to ground)      0.05 μA

  1 KV Hipot (heaters to coil)        0.02 μA

                                      

                                      
  ----------------------------------- -----------------------------------

Table 1 -- TQC parameters

# MECHANICAL INTERFACES

Overall the mechanical interfaces are defined by the physical magnet
dimensions and the support points for testing preparation and
installation into the test dewar. The overall dimensions of TQC01 are
reported in figure 1a below. The support structure for TQC01 is
different from the "standard" scheme which will be followed for all
subsequent magnets. The standard supports will consist of threaded holes
on the top plate according to drawing XXX. TQC01 uses holes down the
length of the magnet to insert threaded rod and connect a support plate
underneath the magnet assembly, per figure 1b below.

Figure 1a -- Dimensions of TQC01 (source: Marty Whitson)

![](media/image1.png){width="6.491666666666666in"
height="3.8881944444444443in"}

Figure 1b -- Sketch of TQC01 lead end

# ELECTRICAL INTERFACES

Electrical connections consist of voltage taps, protection heaters, spot
heaters, low-voltage connections (for strain gauges and temperature
sensors), and magnet power. Figures 2a through 2c contain the
hypertronics connector layouts. Figure 3a is the intra-coil wiring
diagram (coil connections and voltage tap placements), and table 2 shows
the voltage tap distances on each coil. The spreadsheet which contains
the wiring connections for TQC01 is maintained in a separate document
(LARP-doc-347):

<https://larpdocs.fnal.gov/LARP-private/DocDB/ShowDocument?docid=347>.

![](media/image2.wmf)

Figure 2a - Voltage Tap Connector Layout (solder-cup view of female)

![](media/image3.wmf)

> Figure 2b - Heater Connector Layout. Magnet side uses male (pins).
> Modules are numbered according to the Hypertronics convention.

Figure 2c -- Low-Voltage Connector Layout

![](media/image4.wmf){width="6.78125in" height="9.0in"}Figure 3a --
Intra-coil Wiring Diagram for TQC01 (source: Rodger Bossert)

Tap Distances (-) Lead Saddle to Taps

  --------------- -------------- ----------- ------- --------------- -------------- -----------
  ** **           **Q4 INNER**   ** **                               **Q4 OUTER**   ** **

  **( - ) Q4-I**  **COIL 12**    ** **       ** **   **Q4-O/Q2-I**   **COIL 12**    ** **

  **V TAP**       **DISTANCE**   ** **       ** **   **V TAP**       **DISTANCE**   ** **

  **NAME**        **IN mm**      **Notes**   ** **   **NAME**        **IN mm**      **Notes**

  **VTLN**        (-)307.0       run along   ** **   **VT12B6**      29808.5         
                                 (-) power                                          
                                 lead                                               

  **VTMN**        (-)307.0                   ** **   **VT12B5**      30364.8         

  **VT012A1**     (-)2.0                     ** **   **VT12B4**      30503.1         

  **VT12A2**      127                        ** **   **VT12B3**      31056.3         

  **VT12A3**      20227.4                    ** **   **VT12BSH2**    52399.2         

  **VT12A4**      20787.2                    ** **   **VT12BSH1**    52459.2         

  **VT12A5**      22312.8                    ** **   **VT12B2**      53388.2         

  **VT12A6**      28186.3                    ** **   **VT12B1**      53517.2         

  **VT12A7**      28350.7                    ** **   **VTQ24N**      53664.2         

  **VT12A8**      28895                      ** **   **VTQ24P**      53664.2         

  **VT12A9**      29087.3                    ** **   **VTQ24**       53664.2         

  **VT12A10**     29474.1                    ** **                   ** **           

                                                                                     

                  **Q2 INNER**   ** **                               **Q2 OUTER**   ** **

  **Q2-I/Q2-0**   **COIL 10**    ** **               **Q2-O/Q1-O**   **COIL 10**    ** **

  **V TAP**       **DISTANCE**   ** **       ** **   **V TAP**       **DISTANCE**   ** **

  **NAME**        **IN mm**      **Notes**   ** **   **NAME**        **IN mm**      **Notes**

  **VT10A1**      53952.2                    ** **   **VT10B6**      83761.9         

  **VT10A2**      54081.2                    ** **   **VT10B5**      84318.2         

  **VT10A3**      74181.6                    ** **   **VT10B4**      84456.5         

  **VT10A4**      74741.4                    ** **   **VT10B3**      85009.7         

  **VT10A5**      76266.2                    ** **   **VT10B2**      107341.6        

  **VT10A6**      82140.5                    ** **   **VT10B1**      107470.6        

  **VT10A7**      82304.9                    ** **   **VTMCN**       107782.2        

  **VT10A8**      82848.4                    ** **   **VTMCP**       107782.2        

  **VT10A9**      83040.8                    ** **   **VTMHN**       107782.2        

  **VT10A10**     83427.5                    ** **   **VTMHP**       107782.2        

                                                                                    

                  **Q1 OUTER**   ** **                               **Q1 INNER**   ** **

  **Q1-O/Q1-I**   **COIL 13**    ** **               **Q1-I/Q3-0**   **COIL 13**    ** **

  **V TAP**       **DISTANCE**   ** **               **V TAP**       **DISTANCE**   ** **

  **NAME**        **IN mm**      **Notes**           **NAME**        **IN mm**      **Notes**

  **VT13B1**      107929.2                           **VT13A10**     131964.3        

  **VT13B2**      108058.2                           **VT13A9**      132351.1        

  **VT13BSH1**    108979.2                           **VT13A8**      132543.5        

  **VT13BSH2**    109039.2                           **VT13A7**      133087.0        

  **VT13B3**      130382.1                           **VT13A6**      133251.4        

  **VT13B4**      130935.3                           **VT13A5**      139125.7        

  **VT13B5**      131073.6                           **VT13A4**      140650.5        

  **VT13B6**      131629.9                           **VT13A3**      141210.3        

                                                     **VT13A2**      161310.7        

                                                     **VT13A1**      161439.7        

                                                     **VTQ13**       161727.7        

                                                     **VTQ13N1**     161727.7        

                                                     **VTQ13P1**     161727.7        

                                                                                    

  ** **           **Q3 OUTER**   ** **                               **Q3 INNER**   ** **

  **Q3-0/Q3-I**   **COIL 09**    ** **               **Q3-I (+)**    **COIL 09**    ** **

  **V TAP**       **DISTANCE**   ** **               **V TAP**       **DISTANCE**   ** **

  **NAME**        **IN mm**      **Notes**           **NAME**        **IN mm**      **Notes**

  **VT09B1**      161874.7                           **VT09A10**     185917.8        

  **VT09B2**      162003.7                           **VT09A9**      186304.6        

  **VT09B3**      184335.6                           **VT09A8**      186497.0        

  **VT09B4**      184888.8                           **VT09A7**      187040.5        

  **VT09B5**      185027.1                           **VT09A6**      187204.9        

  **VT09B6**      185583.4                           **VT09A5**      193079.2        

                                                     **VT09A4**      194604.0        

                                                     **VT09A3**      195163.8        

                                                     **VT09A2**      215264.2        

                                                     **VT09A1**      215393.2        

                                                     **VTMP**        215544.2        

                                                     **VTLP**        215695.2       run along
                                                                                    (+) power
                                                                                    lead
  --------------- -------------- ----------- ------- --------------- -------------- -----------

Table 2 -- Voltage tap distances (source: Marty Whitson)

# DIAGNOSTIC DEVICE CALIBRATIONS

Calibration data for all the diagnostic devices are maintained in
separate spreadsheets. For simplicity all the files are contained in one
document in the document database (LARP-doc-349). The following
information is accessible from:

<https://larpdocs.fnal.gov/LARP-private/DocDB/ShowDocument?docid=349>.

-   Bullet Gages summary file - contains all data for the bullet gages
    (source: Marty Whitson)

-   Strain Gage summary file - contains the following (source: Marty
    Whitson):

    -   Layer 1 Pole Strain Gages

    -   Skin Strain Gages

    -   Block Strain Gages (77K)

    -   Block Strain Gages (300K)

-   RTD calibration data (source: Al Rusy)

# KNOWN ISSUES

Below is a running list of the known issues with TQC01:

1.  The following low-voltage diagnostic connections (wire
    label/module-pin) are not part of this magnet:

    a.  SGCSTI9+ / SG07-12

    b.  SGCSTI9- / SG07-13

    c.  SGCSTV9+ / SG07-14

    d.  SGCSTV9- / SG07-15

    e.  SGCSTI10+ / SG07-16

    f.  SGCSTI10- / SG07-17

    g.  SGCSTV10+ / SG07-11

    h.  SGCSTV10- / SG07-10

2.  The following voltage taps (wire label/module-pin) are open:

    a.  SGSKAZI20+ / SG12-16

    b.  SGSKAZI20- / SG12-17

    c.  SGSKAZV20+ / SG12-11

    d.  SGSKAZV20- / SG12-10

    e.  VT10A8 / VT03-M2-3

    f.  VT10B5 / VT03-M4-1

    g.  VT12BSH2 / VT04-M4-2

3.