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Message ID: 1182     Entry time: Thu Jan 15 09:09:37 2026
 Author: IC 
 Status: Under Process 
 Type: Shift summary 
 Category:  
 Important:
 Subject: Ring studies 
 Icon:  

08h56 Warm-up ThomX: Modulator, Laser, Fridge
Chillers were started, cycling all magnets.
Low SF6 pressure.

10h20 HV ON

Tuning of the Linac. Charge at ICT1 is about 100 pC

Load the nominal receipt.

Modulator put to stand by. Lunch break.

13h16 HV ON

Application of the quadrupol calibration curve -12..12 A.

NEW

K1i_model =

   -1.5941
   -1.5941
   -1.5941
   -1.5941


K2i_model =

    3.2615
    3.2615
    3.2615
    3.2615


K3i_model =

   -6.1107
   -6.1107
   -6.1107
   -6.1107


K4i_model =

    5.4292
    5.4292
    5.4292
    5.4292


K5i_model =

   -3.5901
   -3.5901
   -3.5901
   -3.5901


K6i_model =

    2.3630
    2.3630
    2.3630
    2.3630

>> 
OLD
K1i_model =

   -1.5473
   -1.5473
   -1.5473
   -1.5473


K2i_model =

    3.1987
    3.1987
    3.1987
    3.1987


K3i_model =

   -6.0302
   -6.0302
   -6.0302
   -6.0302


K4i_model =

    5.3524
    5.3524
    5.3524
    5.3524


K5i_model =

   -3.5248
   -3.5248
   -3.5248
   -3.5248


K6i_model =

    2.3082
    2.3082
    2.3082
    2.3082

Machine-Model studies.

Nominal receipt

Before LOCO
=== dQ/dx comparison (axis: delta (dk*steps)) ===
Family    dQx/dx(M)      dQx/dx(T)      ratio     dQy/dx(M)      dQy/dx(T)      ratio
QP1     +4.975e-01  +5.370e-01   0.927   -3.362e-01  -4.067e-01   0.826
QP2     +7.289e-01  +8.119e-01   0.898   -2.407e-01  -2.830e-01   0.851
QP3     +2.198e-01  +2.420e-01   0.908   -9.850e-01  -6.102e-01   1.614
QP4     +1.026e+00  +1.136e+00   0.903   -2.736e-01  -2.968e-01   0.922
QP31    +6.600e-02  +7.543e-02   0.875   -2.357e+00  -1.288e+00   1.830
QP41    +5.350e-01  +6.000e-01   0.892   -1.024e+00  -5.563e-01   1.841

LOCO studies.

Checked that the first turn on which we inject now is 13-14th.

18h20 STOP THOMX

 

 

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