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Alignment procedure

Alignment procedure for CSPAD2x2 is very similar to CSPAD alignment for quads described in
 CSPAD Geometry and Alignment.
The only difference is that CSPAD2x2 has only two 2x1 sensors, that makes everything much simplerbut with different memory model as explained below.

Optical measurements

Photos and charts with numeration of corners in otical measurements:
Image Added

Metrology table

...

Metrolody files from different optical measurements are collected in directories with specific dates under


<PATHREPO>/detector/alignment/cspad2x2/

Example of the 1-st metrology Metrology table in xlsx format:
Metrology-140ks-Feb13-2013.xlsx

...

Quality check and alignment parameters

CSPad2x2-1.txt Q133 D7A16


Calibration types

In 2014 new universal detector geometry software is implemented and documented in the Detector Geometry page. In this approach detector geometry calibration information is located in a single file of type

  • geometry - contains hierarchical description of all detector components; for example for CSPAD2x2 it has sensors' location and rotation in the detector, detector - in the setup, etc.

Currently all psana modules which deal with image and pixel coordinates can work with calibration type geometry.

In earlier version of software, CSPAD2x2 geometry is defined by the two calibration types:

  • center - x, y, z center position for each two 2x1 in the detector. Obtained from optical measurement.
  • tilt- two 2x1-tilt angle for the detector in fractional degree. Obtained from optical measurement.


Note

Calibration types center and tilt are deprecated and supported for backward compatibility.

Type geometry is used by default in all current applications.

Quality check and alignment parameters

2013-02-13 CSPAD2x2-1 Q133 D7A16

Metrology file

  <PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-01-2013-02-13/2013-02-13-CSPAD2X2-1-MEC-Metrology.txt

Quality check

Code Block
segm:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    angle(deg)   D1      D2      dD   d(dS)   d(dL)
segm: 0   20902   20909      -2       5    -43538  -43539       1       0   -0.00197   48297   48297       0      -7       1
segm: 1   20902   20906      -2       2    -43538  -43538       0       0   -0.00000   48296   48296       0      -4       0

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20909   20902       2      -5     43538   43539       0       1   -0.00006   -0.00329   48297   48297       0       7      -1
pair: 1   20906   20902       2      -2     43538   43538       0       0    0.00000    0.00000   48296   48296       0       4       0

Calibration files

  <PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-01-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.1/

  • geometry/1-end.data
  • center/1-end.data
  • tilt/1-end.data


2013-02-13 CSPAD2x2-2 Q110 D3A14

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-02-2013-02-13/2013-02-13-CSPAD2X2-2-MEC-Metrology.txt

Quality check

Code Block
segm:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    angle(deg)   D1      D2      dD   d(dS)   d(dL)
segm: 0   20896   20905      -5       4    -43536  -43536      -2      -2    0.00066   48294   48291       3      -9       0
segm: 1   20905   20905      22      22    -43540  -43536       6      10   -0.02895   48299   48294       5       0      -4

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20905   20896       5      -4     43536   43536      -2      -2    0.00001    0.00066   48291   48294      -3       9       0
pair: 1   20905   20905     -22     -22     43540   43536      10       6   -0.00051   -0.02895   48294   48299      -5       0       4

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-02-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.2/geometry/0-end.data


2013-02-13 CSPAD2x2-3 Q111 D12A18

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2013-02-13/2013-02-13-CSPAD2X2-3-MEC-Metrology.txt

Quality check

Code Block
segm:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    angle(deg)   D1      D2      dD   d(dS)   d(dL)
segm: 0   20908   20907       5       4    -43540  -43545       5       0   -0.00592   48301   48302      -1       1       5
segm: 1   20907   20904    -421    -424    -43538  -43538    -203    -203    0.55599   48299   48299       0       3       0

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20907   20908      -5      -4     43540   43545       0       5   -0.00005   -0.00263   48302   48301       1      -1      -5
pair: 1   20904   20907     421     424     43538   43538    -203    -203    0.00970    0.55601   48299   48299       0      -3       0

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.3/geometry/0-end.data


2013-02-13 CSPAD2x2-4 Q135 D19A19

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-04-2013-02-13/2013-02-13-CSPAD2X2-4-MEC-Metrology.txt

Quality check

Code Block
segm:        S1      
Code Block
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20909   20902       2      -5     43538   43539       0       1   -0.00006   -0.00329   48297   48297segm: 0   20905   20906       08       79    -43540  -1
pair: 143540     20906  3 20902      3 2  -0.01119   48299 -2  48297   43538   43538 2      0-1       0
segm: 1   0.0000020898   20908 0.00000   48296  12 48296     22  0  -43541  -43538   4       0

center/0-end.data (in pixels)

Code Block
 198.05  198.42 
  95.10  307.54 
   0.09    0.03 

tilt/0-end.data (in degree)

Code Block
-0.00329  0.00000 

CSPad2x2-2.txt Q110 D#A14

Code Block
9      12   -0.02237   48295   48299      -4     -10      -3

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   2090520906   2089620905      -8 5     -9 -4    43540 43536  43540 43536      -23      -2 3   -0.0000100020    -0.0006601119   4829148297   4829448299      -32       91       0
pair: 1   2090520908   2090520898     -2212     -22     4354043541   4353643538      1012       6   -0.00051   -0.02895   48294   48299   9   -50.00039   -0.02237   48299 0  48295     4

center/0-end.data (in pixels)

Code Block
 198.03 4 198.94 
  95.09  306.8410 
   0.18    0.21
3

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-04-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.4/geometrytilt/0-end.data (in degree)

Code Block
 0.00066 -0.02895 

CSPad2x2-3.txt Q111 D12A18


2013-02-13 CSPAD2x2-5 Q022 D15A15

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-05-2013-02-13/2013-02-13-CSPAD2X2-5-MEC-Metrology.txt

Quality check

Code Block
segm
Code Block
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pairsegm: 0   2090720904   2090820904      -52      -42    -43536 43540 -43536  43545    -1   0     -1  5   -0.0000500263   -0.0026348294   4830248294   48301    0   1    0  -1      -50
pairsegm: 1   2090420909   20907     421     424     43538   4353820908    -203122    -203123    0.00970-43540  -43545  0.55601   48299-56   48299  -61     0.16119   48302   -348302       0

...

0

...

Code Block
 198.06  196.67 
  95.08  308.15 
1   0.17    0.23 

tilt/0-end.data (in degree)

Code Block
-0.00263  0.55601

CSPad2x2-4.txt Q135 D19A19

Code Block
 5

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20904 20906  20904 20905      -82      -9 2    43540 43536  43540 43536      3-1      -1 3   -0.0002000005    -0.0111900263   4829748294   48294 48299      -20       10       0
pair: 1   20908   2089820909     -12122     -22  123   43541  43540 43538  43545    12 -61     -56 9   -0.0003900281    -0.0223716119   4829948302   4829548302       40      10-1       3

center/0-end.data (in pixels)

Code Block
 198.07  198.70 
  95.06  307.79 
   0.24    0.30
-5

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-05-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.5/geometrytilt/0-end.data (in degree)

Code Block
-0.01119 -0.02237

CSPad2x2-5.txt Q022 D15A15


2013-02-13 CSPAD2x2-6 Q157

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-06-2013-02-13/2013-02-13-CSPAD2X2-6-MEC-Metrology.txt

Quality check

Code Block
segm
Code Block
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20904   20904dL2    angle(deg)   2D1      D2 2     43536dD   43536d(dS)   d(dL)
segm: 0  -1 20900   20903  -1   -59 0.00005    0.00263-56   48294 -43541  48294-43539     -29  0   -27    0.07567   48298   48297 0
pair: 1   20908  1 20909     122-3     123 -2
segm: 1   4354020977   4354520979     -6149     -5647    0.00281-43707   -43705 0.16119   48302 -22  48302   -20    0.06292   48478   -148482      -5

center/0-end.data (in pixels)

Code Block
 198.03  197.12 
  95.10  307.60 
   0.03   -0.11 

tilt/0-end.data (in degree)

Code Block
 0.00263  0.16119 

CSPad2x2-6.txt Q157

Code Block
4      -2      -2

Old version of quality check:
pair:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    <dS/L>  angle(deg)      D1      D2      dD   d(dS)   d(dL)
pair: 0   20903   20900      59      56     43541   43539     -27     -29    0.00132    0.07567   48296   48297      -1       3       2
pair: 1   20979   20977      49      47     43707   43705     -20     -22    0.00110    0.06292   48481   48477       4       2       2

center/0-end.data (in pixels)

Code Block
 197.93  196.92 
  95.34  307.53 
  -1.60   -3.63

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-06-2013-02-13/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.0/geometrytilt/0-end.data (in degree)

Code Block
 0.07567  0.06292

2014-04-25 CSPAD2X2-3 (1.0 SN07 D12A18)

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2014-04-25/2014-04-25-CSPAD2X2-3-MEC-Metrology.txt

...

Original metrology file from Gabriel Blaj: 2014-04-25-CSPAD2X2-3-MEC-Metrology.xlsx

This should be used for any experiment AFTER April 25th 2014 (until further notice).

Quality check

Code Block
Quality check in XY plane:
segm:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    angle(deg)   D1      D2      dD   d(dS)   d(dL)
segm: 0   20979   20982       0       3    -43695  -43689      -2       4   -0.00197   48468   48468       0      -3      -6
segm: 1   20981   20981     123     123    -43701  -43695      51      57   -0.16127   48478   48469       9       0      -6
 
Quality check in Z:
segm:        SA      LA   XSize   YSize    dZS1  dZS2  dZL1  dZL2    dZSA  dZLA  ddZS  ddZL     dZX   dZY   angXZ(deg) angYZ(deg) dz3(um)
segm: 0   20980  -43692   43692   20980      18     5    -2   -15      11    -8    13    13      -8    11  -0.01049    0.03004    -13.001
segm: 1   20981  -43698   43698   20981      -4    -8     0    -4      0.03004-6    -13.001
segm: 12     4 20981  -43698  4 43698   20981  -2    -4 6  -0.00262   -80.01639     0    -4      -6    -2     4     4      -2    -6  -0.00262   -0.01639     -4.000

center/0-end.data (in pixels)

Code Block
 198.76  199.63 
  95.44  308.48 
   0.06    0.04

tilt/0-end.data (in degree)

Code Block
-0.00197 -0.16127

geometry/0-end.data

Code Block
# TITLE      Geometry parameters of CSPAD2X2
# DATE_TIME  2014-10-03 12:27:11 PDT
# METROLOGY  /reg/neh/home1/dubrovin/LCLS/CSPad2x2Metrology/CSPad2x2/2014-04-25-CSPAD2X2-3-MEC-Metrology.txt
# AUTHOR     dubrovin
# EXPERIMENT Any
# DETECTOR   CSPAD2X2
# CALIB_TYPE geometry
# COMMENT:01 Table contains the list of geometry parameters for alignment of 2x1 sensors, quads, CSPAD, etc
# COMMENT:02 All translation and rotation pars of the object are defined w.r.t. parent object Cartesian frame
# PARAM:01 PARENT     - name and version of the parent object
# PARAM:02 PARENT_IND - index of the parent object
# PARAM:03 OBJECT     - name and version of the object
# PARAM:04 OBJECT_IND - index of the new object
# PARAM:05 X0         - x-coordinate [um] of the object origin in the parent frame
# PARAM:06 Y0         - y-coordinate [um] of the object origin in the parent frame
# PARAM:07 Z0         - z-coordinate [um] of the object origin in the parent frame
# PARAM:08 ROT_Z      - object design rotation angle [deg] around Z axis of the parent frame
# PARAM:09 ROT_Y      - object design rotation angle [deg] around Y axis of the parent frame
# PARAM:10 ROT_X      - object design rotation angle [deg] around X axis of the parent frame
# PARAM:11 TILT_Z     - object tilt angle [deg] around Z axis of the parent frame
# PARAM:12 TILT_Y     - object tilt angle [deg] around Y axis of the parent frame
# PARAM:13 TILT_X     - object tilt angle [deg] around X axis of the parent frame

# HDR PARENT IND        OBJECT IND    X0[um]  Y0[um]  Z0[um]   ROT-Z ROT-Y ROT-X     TILT-Z   TILT-Y   TILT-X

CSPAD2X1:V1    0  SENS2X1:V1     0     21848   10490       6     180     0     0   -0.00197 -0.01049  0.03004 
CSPAD2X1:V1    0  SENS2X1:V1     1     21943   33908       4     180     0     0   -0.16127 -0.00262 -0.01639 

 

Calibration files

In local space

Produced for optical measurement on 2013-02-13

  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-01-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-02-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-03-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-04-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-05-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-06-2013-02-13/<type>/0-end.data
  • /reg/neh/home1/dubrovin/LCLS/CSPad2x2Alignment/calib-cspad2x2-03-2014-04-25/<type>/0-end.data - 2014-05-30

Deployed in experimental DB

(tick) 2013-03-08
/reg/d/psdm/mec/mec73313/calib/CsPad2x2::CalibV1/

  • MecTargetChamber.0:Cspad2x2.1/<type>/0-end.data
  • MecTargetChamber.0:Cspad2x2.2/<type>/0-end.data
  • MecTargetChamber.0:Cspad2x2.3/<type>/0-end.data
  • MecTargetChamber.0:Cspad2x2.4/<type>/0-end.data
  • MecTargetChamber.0:Cspad2x2.5/<type>/0-end.data

(tick) 2013-06-21
/reg/d/psdm/xpp/xpptut13/calib/CsPad2x2::CalibV1/

  • XppGon.0:Cspad2x2.0/<type>/0-end.data is taken from calib-cspad2x2-06-2013-02-13/<type>
  • XppGon.0:Cspad2x2.1/<type>/0-end.data is taken from calib-cspad2x2-01-2013-02-13/<type>
    where <type> stands for tilt and center.

Known detectors

on 2014-07-04:

Code Block
   0 : CxiDg2.0:Cspad2x2.0
   1 : CxiDg2.0:Cspad2x2.1
   2 : CxiSc1.0:Cspad2x2.0
   3 : CxiSc2.0:Cspad2x2.0
   4 : CxiSc2.0:Cspad2x2.1
   5 : CxiSc2.0:Cspad2x2.2
   6 : CxiSc2.0:Cspad2x2.3
   7 : CxiSc2.0:Cspad2x2.4
   8 : CxiSc2.0:Cspad2x2.5
   9 : CxiSc2.0:Cspad2x2.6
  10 : CxiSc2.0:Cspad2x2.7
  11 : MecEndstation.0:Cspad2x2.6
  12 : MecTargetChamber.0:Cspad2x2.0
  13 : MecTargetChamber.0:Cspad2x2.1
  14 : MecTargetChamber.0:Cspad2x2.2
  15 : MecTargetChamber.0:Cspad2x2.3
  16 : MecTargetChamber.0:Cspad2x2.4
  17 : MecTargetChamber.0:Cspad2x2.5
  18 : SxrBeamline.0:Cspad2x2.2
  19 : SxrBeamline.0:Cspad2x2.3
  20 : XcsEndstation.0:Cspad2x2.0
  21 : XcsEndstation.0:Cspad2x2.1
  22 : XppGon.0:Cspad2x2.0
  23 : XppGon.0:Cspad2x2.1
  24 : XppGon.0:Cspad2x2.2
  25 : XppGon.0:Cspad2x2.3


 

Software

Memory data model

In contrast to CSPAD which data array shape is (N, 185, 388), the CSPAD2x2 data array has a shape (185, 388, 2); the memory pointer increment by 1 swaps the 2x1 sensor. The (raw,column)=(0,0) is located in corners 4 and 8 of optical measurement scheme for two 2x1 sensors, respectively.

...

-4.000

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2014-04-25/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.3/geometry/0-end.data


2015-04-02 CSPAD2X2-3 (1.0 SN07 D12A18)

Note from Gabriel and Philip

Note

Philip and I inspected the CSPAD 140Ks that we received last week (CSPAD 1,2,3,5):

- CSPADs 1, 2 and 5 have the same metrology as that on February 13, 2013.
- CSPAD 3 has been fixed meanwhile (initially it contained 2x2 module #111, which is the one in your metrology file). Now its 2x2 module is replaced with #7 (metrology file attached). This metrology file should be applied in all experiments that took place after the service date. To find out this date, we will consult with you further.
- CSPAD 4 is only a mechanical assembly (see other e-mail sent a few weeks ago).
Thanks,
Gabriel and Philip

Metrology file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2015-04-02/2015-04-02-CSPAD2X2-3-MEC-Metrology.txt

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2015-04-02/2015-04-02-CSPAD2X2-3-MEC-Metrology.xlsx

Quality check

Code Block
2015-04-02 13:40:57 (info) CalibManager.GUIMetrology: Quality check in X-Y plane:
segm:        S1      S2     dS1     dS2        L1      L2     dL1     dL2    angle(deg)   D1      D2      dD   d(dS)   d(dL)
Quad  0
segm: 0   20981   20978     -33     -36    -43703  -43708     -17     -22    0.04523   48482   48477       5       3       5
segm: 1   20978   20974    -152    -156    -43707  -43702     -73     -68    0.20189   48474   48480      -6       4      -5
2015-04-02 13:40:57 (info) CalibManager.GUIMetrology: Quality check in Z:
segm:        SA      LA   XSize   YSize    dZS1  dZS2  dZL1  dZL2    dZSA  dZLA  ddZS  ddZL     dZX   dZY   angXZ(deg) angYZ(deg) dz3(um)
Quad  0
segm: 0   20979  -43705   43705   20979      -1    31   -37    -5      15   -21   -32   -32     -21    15  -0.02753    0.04097     32.009
segm: 1   20976  -43704   43704   20976     -28   -38     5    -5     -33     0    10    10       0   -33   0.00000   -0.09014    -10.007

Calibration file

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2015-04-02/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.3/

  • geometry/0-end.data

Calibration files

In archive

  • All files for CSPAD2x2 alignment are stored under directory /reg/g/psdm/detector/alignment/cspad2x2/
  • Files named as *-Metrology.xlsx and *-Metrology.txt are original metrology and its text version.
  • Calibration files are located under <PATHREPO>/detector/alignment/cspad2x2/calib/ directory.
  • Calibration files can be deployed in the experimental calib store using file manager in  Calibration Management Tool

In calib store

(tick) Example of the path to calibration files in the experimental calib store

Code Block
<PATH>/mec/mec73313/calib/CsPad2x2::CalibV1/
                                                 MecTargetChamber.0:Cspad2x2.1/<calib-type>/0-end.data
                                                 ...
                                                 MecTargetChamber.0:Cspad2x2.1/<calib-type>/0-end.data

where <type> stands for geometry, tilt, and center.

Known detectors

on 2016-06-15:

Code Block
   0 : CxiDg2.0:Cspad2x2.0
   1 : CxiDg2.0:Cspad2x2.1
   2 : CxiDg3.0:Cspad2x2.0
   3 : CxiSc1.0:Cspad2x2.0
   4 : CxiSc2.0:Cspad2x2.0
   5 : CxiSc2.0:Cspad2x2.1
   6 : CxiSc2.0:Cspad2x2.2
   7 : CxiSc2.0:Cspad2x2.3
   8 : CxiSc2.0:Cspad2x2.4
   9 : CxiSc2.0:Cspad2x2.5
  10 : CxiSc2.0:Cspad2x2.6
  11 : CxiSc2.0:Cspad2x2.7
  12 : CxiSc2.0:Cspad2x2.8
  13 : CxiSc2.0:Cspad2x2.9
  14 : MecEndstation.0:Cspad2x2.6
  15 : MecTargetChamber.0:Cspad2x2.0
  16 : MecTargetChamber.0:Cspad2x2.1
  17 : MecTargetChamber.0:Cspad2x2.2
  18 : MecTargetChamber.0:Cspad2x2.3
  19 : MecTargetChamber.0:Cspad2x2.4
  20 : MecTargetChamber.0:Cspad2x2.5
  21 : SxrBeamline.0:Cspad2x2.2
  22 : SxrBeamline.0:Cspad2x2.3
  23 : XcsEndstation.0:Cspad2x2.0
  24 : XcsEndstation.0:Cspad2x2.1
  25 : XcsEndstation.0:Cspad2x2.2
  26 : XcsEndstation.0:Cspad2x2.3
  27 : XcsEndstation.0:Cspad2x2.4
  28 : XppGon.0:Cspad2x2.0
  29 : XppGon.0:Cspad2x2.1
  30 : XppGon.0:Cspad2x2.2
  31 : XppGon.0:Cspad2x2.3
  32 : XppGon.0:Cspad2x2.4


Software

Access interface to any detector data and calibration parameters is implemented in Python Package Detector.

CSPAD2x2 memory data model

In contrast to CSPAD which data array shape is (N, 185, 388), the CSPAD2x2 data array has a shape (185, 388, 2); the memory pointer increment by 1 swaps the 2x1 sensor. The (raw,column)=(0,0) is located in corners 4 and 8 of optical measurement scheme for two 2x1 sensors, respectively.

Conversion between these data formats can be done in Python by methods

arrTwo2x1 = data2x2ToTwo2x1(asData2x2)
asData2x2 = two2x1ToData2x2(arrTwo2x1)

as described in module-PSCalib.GeometryObject

Geometry access

In 2014 new universal detector geometry software is implemented and documented in the Detector Geometry page. In this approach detector geometry calibration information is collected in a single file of type

  • geometry

which contains hierarchical description of all detector components. For example for CSPAD it has sensors' location and rotation in the quads, quads - in the detector, detector - in the setup, etc.

By default these files reside under the calib directory with full path like

  • /reg/d/psdm/<instrument>/<experiment>/calib/<calib-soft-version>/<data-source>/geometry/<run-range>.data

Whenever necessary image can be generated by the psana Module CSPadPixCoords::CSPad2x2ImageProducer, which access geometry calibration data automatically, generates 2-d image and saves it in the event store for further processing.

Python modules for CSPAD2x2 geometry

Detector geometry software, described in  Detector Geometry, has a Python interface which is recommended to use in new code development.

Alternatively, Python modules for CSPAD2x2 geometry are available in the package PyCSPadImage documented in CSPAD pixel coordinates and image producer in Python. They provides an interface for getting
(tick) Calibration parameters from DB and local directory,
(tick) Pixel coordinates,
(tick) Image producer

References


Deprecated

C++ classes and modules for psana

(tick) data types are implemented in the package pdscalibdata as CsPad2x2* modules:

  • CsPad2x2CenterV1
  • CsPad2x2TiltV1
  • CsPad2x2PedestalsV1
  • CsPad2x2PixelGainV1
  • CsPad2x2PixelStatusV1

(tick) Access methods are implemented in the package PSCalib in CSPad2x2CalibPars module.
Example of acess is in PSCalib/test/ex_cspad2x2_calib_pars.cpp.

(tick) Automated access to the cspad2x2 geometry parameters is implemented in packages:

  • Package CSPadPixCoords generates and returns the CSPad2x2 pixel coordinates, taking into account geometry alignment parameters, if available in the expected place under /reg/d/psdm/<instrument>/<experiment>/calib directory.
  • Module CSPadPixCoords::CSPad2x2ImageProducer produces CSPad2x2 image, accounting for correct geometry, if available.

(tick) Description of the psana module and example can be found in Psana Module Catalog Module CSPadPixCoords::CSPad2x2ImageProducer

Python modules for CSPad2x2 geometry

Python modules for CSPad2x2 geometry are available in the package PyCSPadImage. They provides an interface for getting
(tick) Calibration parameters from DB and local directory,
(tick) Pixel coordinates,
(tick) Image producer

References

Calibration files

<PATHREPO>/detector/alignment/cspad2x2/calib-cspad2x2-03-2015-04-02/calib/CsPad2x2::CalibV1/MecTargetChamber.0:Cspad2x2.3/

  • center/0-end.data
  • tilt/0-end.data

References