Beamline voltages¶
Beam counters¶
Target rack power supplies:
Input COW 1960 V M1 1120 V
Detectors:
------------------------------------------------------------------------------------ Detector | Channel | Voltage ---------------------------------+--------------------------------+----------------- 90 degree target; 1 | Target rack COW 1 | -160 V 90 degree target; 2 | Target rack COW 2 | -360 V 90 degree target; 3 | Target rack COW 3 | -160 V On axis target | Target rack COW 4 | -340 V ---------------------------------+--------------------------------+----------------- Paddle 1 | Target rack COW 8 | -60 V Paddle 2 | Target rack COW 9 | -140 V Paddle 3 | Target rack COW 10 | -240 V Paddle 4 | Target rack COW 11 | -20 V ---------------------------------+--------------------------------+----------------- Target Counter; 1 | Target rack COW 12 | -1540 V Target Counter; 2 | Target rack COW 13 | -1680 V Target Counter; 3 | Target rack COW 14 | -1860 V Target Counter; 4 | Target rack COW 15 | -1680 V ---------------------------------+--------------------------------+----------------- Shield Block Counter; 3 (M3) | Target rack COW 16 | -460 V Shield Block Counter; 1 (M4) | Target rack COW 17 | -580 V Shield Block Counter; 2 (M1) | Target rack power supply 2 | 1120 V ---------------------------------+--------------------------------+----------------- Before Target Counter; 1 | Target rack COW 18 | -120 V (Junting: -1500 V) Before Target Counter; 2 | Target rack COW 19 | -120 V (Junting: -1900 V) Before Target Counter; 3 | Target rack COW 20 | 0 V (Junting: -1550 V) ------------------------------------------------------------------------------------
------------------------------------------------------------------------------------ Detector | Channel | Width | Voltage ---------------------------------+---------------------+-----------+---------------- ArgoNeuT, detector face; 1 | Mini rack 1 | 20ns | -902 V ArgoNeuT, detector face; 2 | Mini rack 2 | 20 ns | -902 V ArgoNeuT, detector face; 3 | Mini rack 3 | 20 ns | -901 V ArgoNeuT, detector face; 4 | Mini rack 4 | 20 ns | -885 V ------------------------------------------------------------------------------------
Lariat counter: -1900v for all. Refers to the three long counters we moved from Lariat area. They are bundled together, positioned vertically on a crate in our area.
Time-of-Flight¶
PMT¶
PMT voltages are via a COW in downstream detector power rack.
----------------------------------------------------------------------------- Detector | Channel | Voltage ----------------------+-------------------------------+---------------------- Nominal (DS) | - | -900 V DS1 | | -899 V DS2 | | -896 V DS3 | | -868 V DS4 | | -916 V ----------------------+-------------------------------+---------------------- Nominal (US) | - | -820 V US5 | | -808 V US6 | | -799 V US7 | | -855 V US8 | | -813 V -----------------------------------------------------------------------------
SiPM¶
The SiPM voltages are supplied by a (EHS 8001n_106) LV power supply sitting in a VME crate. The SiPM bias voltage is configured through the VNC crate.
------------------------------------------ SiPM ToF Detector | Voltage ----------------------+------------------- Bias | -29 V OpAmp | +5 V ------------------------------------------
Cherenkov¶
PMT connected directly to HV power supply in downstream detector power rack.
------------------------------------- Cherenkov PMT | +1700 V -------------------------------------
Wire Chambers¶
----------------------------------------------------- Detector | Voltage -----------------------------+----------------------- Target Beam Chamber | ? V -----------------------------+----------------------- Secondary Beam Chamber | ? V -----------------------------+----------------------- Beamline Chamber; 1 (AI) | 2475 V Beamline Chamber; 2 (AJ) | 2450 V Beamline Chamber; 3 (AK) | 2460 V Beamline Chamber; 4 (AL) | 2420 V -----------------------------------------------------