DVCS3 crate and channel maps

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Crate layout in the DVCS racks

ROC info

Please see https://logbooks.jlab.org/entry/3292168 for information.

Model Mac1 location Hostname IP Adress ROC Hardware ID CODA ROC
VME 002038046D12 LHRS DVCS crate 1 intelhadvcs1 (ROC27) 4 27
VME 002038046DC1 LHRS DVCS crate 2 intelhadvcs2 (ROC28) 6 28
VME 0020CEF603EA LHRS DVCS crate 3 intelhadvcs3 (ROC29) 5 29
VME 002038046D0C LHRS DVCS crate 4 intelhadvcs4 (ROC30) 0 30
VME Upper level crate intelha3 7

Modules in each crate

  • ROC27: SIS3801 scalers "A" and "B"; CAEN V1290 TDC; ARS modules 0x1,0x2,0x3
  • ROC28: SIS3801 scaler "C"; ARS modules 0x4, 0x5, 0x6, 0x7, 0x8
  • ROC29: SIS3801 scaler "D"; ARS modules 0x9, 0xA, 0xB, 0xC, 0xD
  • DVCS trigger crate
  • NIM crate
  • ROC30: SIS3801 scaler "E"; DVCS trigger readout card

Channel layout for SIS3801 scalers "A" and "B" and CAEN V1290 TDC

The input signals for SIS3801 scalers "A" and "B" and CAEN V1290 TDC are daisy chained from "A", to "B", then terminate at the TDC. Scalers "A" and "B" have had their internal termination resistors removed. Both scalers are gated by the spectrometer scaler gate, but scaler "B" is further disabled by the DVCS trigger busy (which includes the TS busy). Both scalers and the TDC are latched by a narrow pulse formed from the ARS_valid signal.

  1. 512ns clock from DVCS trigger crate (1)
  2. DVCS cosmic trigger
  3. s0
  4. s2
  5. CER
  6. EDTM
  7. DVCS external clock or LED trigger
  8. ARS_stop
  9. ARS_valid
  10. DVCS calorimeter ADC_gate
  11. inverted S0
  12. inverted S2
  13. inverted CER
  14. L1A
  15. CaloBlock001
  16. External S2M_CER
  17. 64ns clock from DVCS trigger crate
  18. 512ns clock from DVCS trigger crate (2)
  19. Master_OR
  20. Master_OR_Live
  21. HRS_Single
  22. S2M_CER
  23. S2M_CER_Scaled
  24. 103kHz clock from spectrometer
  25. BCM signal

Some output leaves in the tree

(This may be out-of-date) Taken from: https://userweb.jlab.org/~munoz/2ndprod/output/index.html


L.vdc.u1.nhit u1 number of hits L.vdc.u1.nclust u1 number of clusters L.vdc.v1.nhit v1 number of hits L.vdc.v1.nclust v1 number of clusters L.vdc.u2.nhit u2 number of hits L.vdc.u2.nclust u2 number clusters L.vdc.v2.nhit v2 number of hits L.vdc.v2.nclust v2 number of clusters


L.s1.la Left PMT raw ADC L.s1.ra Rigth PMT raw ADC L.s1.la_c Left PMT corrected ADC L.s1.ra_c Right PMT corrected ADC L.s1.lt Left PMT raw TDC L.s1.rt Right PMT raw TDC L.s1.trn Number of tracks for hits L.s1.trx Track x-coordinate at the S1 plane L.s1.try Track y-coordinate at the S1 plane


L.s2.la Left PMT raw ADC L.s2.ra Rigth PMT raw ADC L.s2.la_c Left PMT corrected ADC L.s2.ra_c Right PMT corrected ADC L.s2.lt Left PMT raw TDC L.s2.rt Right PMT raw TDC L.s2.trn Number of tracks for hits L.s2.trx Track x-coordinate at the S2 plane L.s2.try Track y-coordinate at the S2 plane

Cerenkov detector

L.cer.a Raw ADCs L.cer.a_c Corrected ADC L.cer.nthit Number of hits L.cer.asum_c Sum of corrected ADC amplitudes L.cer.asum_p Sum of ADC minus pedestal values

Pion Rejector

First layer

L.prl1.a Raw ADCs L.prl1.a_c Corrected ADC L.prl1.asum_c Corrected ADC sum L.prl1.nhit Number of hits L.prl1.mult Multiplicity L.prl1.nblk Block numbers L.prl1.x Track x-coordinate L.prl1.y Track y-coordinate

Second layer

L.prl2.a Raw ADCs L.prl2.a_c Corrected ADC L.prl2.asum_c Corrected ADC sum L.prl2.nhit Number of hits L.prl2.mult Multiplicity L.prl2.nblk Block numbers L.prl2.x Track x-coordinate L.prl2.y Track y-coordinate

Tracking variables

L.tr.n Number of tracks L.tr.x Track x coordinate (m) L.tr.y Track y coordinate (m) L.tr.th Tangent of track theta angle L.tr.ph Tangent of track phi angle L.tr.d_x Detector x coordinate (m) L.tr.d_y Detector y coordinate (m) L.tr.d_th Detector tangent of theta L.tr.d_ph Detector tangent of phi L.tr.r_x Rotated x coordinate (m) L.tr.r_y Rotated y coordinate (m) L.tr.r_th Rotated tangent if theta L.tr.r_ph Rotated tangent of phi L.tr.beta Beta of track L.tr.dbeta Uncertainty of beta L.tr.tg_th Tangent of target theta L.tr.tg_ph Tangent of target phi L.tr.tg_dp Target delta L.tr.tg_y Target y coordinate L.tr.p Track momentum (GeV)

Beam position, BPMA and BPMB

urb.BPMA.x Reconstructed x-position of BPMA urb.BPMA.y Reconstructed y-position of BPMA urb.BPMB.x Reconstructed x-position of BPMB urb.BPMB.y Reconstructed y-position of BPMB urb.x Reconstructed x-position at nominal interaction point urb.y Reconstructed y-position at nominal interaction point urb.x Reconstructed z-position at nominal interaction point urb.dir.x Reconstructed x-component of beam direction urb.dir.y Reconstructed y-component of beam direction urb.dir.z Reconstructed z-component of beam direction

Vertex coordinates along the beam

rpl.x Vertex x-position rpl.y Vertex y-position rpl.z Vertex z-position