Proton Calorimetry/Experimental Runs/2018/Oct25-6

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Beam tests of the single module with PRaVDA Silicon strip tracker with trigger pulse output at the Birmingham Cyclotron with a 36 MeV beam. == Equipment List == {| class="wikitable" ! style="text-align: center;" | Item ! style="text-align: center;" | Notes |- | style="text-align: center;" | Single Module Scintillator Block | style="text-align: center;" | 3cm x 3cm x 5cm standard scintillator block. Optical gel required to couple Scintillator to PMT |- | style="text-align: center;" | Photomultiplier Tube | style="text-align: center;" | Hamamatsu R13089 2" |- | style="text-align: center;" | Portable Enclosure | style="text-align: center;" | Modified Peli 1510 Waterproof Wheeled Equipment Case. <br/> 230 x 555 x 350mm <br/> Features mount for scintillator and PMT, opening for beam, and ports for SHV, BNC, and SMA cables. <br/> Mylar window with Al support mounted to internal face: approximately light-tight. <br/> BNC output from case connected to SMA splitter. |- | style="text-align: center;" | LeCroy HDO6104 Oscilloscope | style="text-align: center;" | Records PMT output, connected via SMA-BNC conversion. |- | style="text-align: center;" | Caen DT5751 Digitiser | style="text-align: center;" | Records PMT output, connected via SMA-MCX conversion. Used channel 3. |- | style="text-align: center;" | DAQ Laptop | style="text-align: center;" | Controls Caen HV supply; records data from Caen digitiser. |- | style="text-align: center;" | Caen NDT1470 HV Supply | style="text-align: center;" | Supplies HV to PMT |- | style="text-align: center;" | PRaVDA Strip Tracker | style="text-align: center;" | PRaVDA Unit A, 3x150um Si strip sensors with 90.4um strip pitch. <br/> Firmware version update to yield square pulse out when 2 or 3 layers have a strip over threshold per read out cycle |- | style="text-align: center;" | Control Laptop x 3 | style="text-align: center;" | Two used for Remote Desktop control of LeCroy Oscilloscope and DAQ Laptop. Third used for taking down notes. |- | style="text-align: center;" | Ethernet Switcher | style="text-align: center;" | Set in experiment room and connected LeCroy Oscilloscope and DAQ laptop. Output sent to control room Network Hub. |- | style="text-align: center;" | Network Hub | style="text-align: center;" | Set in control room to take output from ethernet switcher. Control laptops connected via ethernet or 5GHz WiFi. |- | style="text-align: center;" | Ethernet Cable x 3 | style="text-align: center;" | To connect 1 control laptop, the LeCroy HDO6104 and DAQ Laptop to their respective network hubs. |- | style="text-align: center;" | Ethernet Cable | style="text-align: center;" | To connect control Network Hub to Ethernet Switcher. |- | style="text-align: center;" | Male-to-Male SMA Cable | style="text-align: center;" | Signal from enclosure port to Splitter |- | style="text-align: center;" | DC-4200 MHz Signal Splitter | style="text-align: center;" | Splits SMA signal to two SMA signals – sent to Oscilloscope and Digitiser. |- | style="text-align: center;" | Male SMA to Male BNC cable | style="text-align: center;" | Sends 1 output from splitter to Oscilloscope. |- | style="text-align: center;" | Male SMA to Male MCX cable | style="text-align: center;" | Sends 1 output from splitter to Digitiser |- | style="text-align: center;" | USB Cable | style="text-align: center;" | Caen HV unit to DAQ Laptop |- | style="text-align: center;" | Gloves | style="text-align: center;" | For handling scintillator |- | style="text-align: center;" | Optical gel | style="text-align: center;" | For coupling scintillator to PMT |- | style="text-align: center;" | Wipes | style="text-align: center;" | For removing optical gel |} == Experiment List == 28 MeV beam Scattering Foil in 2mm diameter collimator 10kHz rate ~= 160pA onto Transmission Chamber before 2mm collimation # Bragg Peak Measurements # Combined scope / digitizer measurements with pristine bragg peak, 100mV trigger threshold # Combined scope / digitizer measurements with pristine bragg peak, varying trigger threshold # Degrade beam energy and measure response with 1-6mm PMMA before calorimeter # PRaVDA box with 2mm collimator, trigger from scope # PRaVDA box with 2mm collimator for trigger output 36 MeV beam Scattering Foil in 2mm diameter collimator 10kHz rate ~= 160pA onto Transmission Chamber before 2mm collimation # Bragg Peak Measurements # Combined scope / digitizer measurements with pristine bragg peak, 100mV trigger threshold # Combined scope / digitizer measurements with pristine bragg peak, varying trigger threshold # Degrade beam energy and measure response with 1-6mm PMMA before calorimeter # Offset 2mm collimator (by 6mm) for optimal trigger threshold # Double 2mm collimator (12mm separated) for optimal trigger threshold # PRaVDA box with 2mm collimator, trigger from scope # PRaVDA box with 2mm collimator for trigger output # Degrade beam with 1-6mm PMMA with tracker ==Experiment Log== '''25/10/18''' # Set up apparatus as described in equipment list. # Beam experienced difficulties, delaying data collection. # Tracker operates on a 26MHz clock, and a trigger is sent whenever 2/3 silicon layers in tracker record events in a timestamp. Trigger tests were conducted with noise, hence a random rate in tests below. # Tested trigger output of Tracker into Oscilloscope: square wave of period ~15 ns with amplitude ~400 mV. Pulse example recorded on Oscilloscope disk in folder: SShaikh/Tracker Trigger # Placed signal splitter for trigger to send to both Digitiser and Oscilloscope. Amplitude reduced to ~50%. Pulse example recorded on Oscilloscope disk in folder: SShaikh/Tracker Trigger (Split) # Split trigger found to be too small for Digitiser (accepts trigger of order ~V), hence Digitiser set to self-trigger mode. # Aligned calorimeter to tracker, with centre of mylar window and tracker window aligned approximately by eye. # Performed beam test (had approx 30 mins beam time), details provided below. # Was found that the tracker was not completely set centre to the beam. # Error in data taking: Trigger trace was recorded instead of PMT trace. '''26/10/18''' # Tracker was realigned to be centred to the beam. # Using Tipp-Ex markers and lable stickers, window to scintillator was aligned more accurately to window of tracker. # Test of tracker/PMT synchronisation (check tracker trigger pulse/PMT pulse sync and numbers of events in files) with scope vertical scale 50mV/div. Window center corresponds to right edge vertical line intersecting upper edge horizontal line, looking at the window. # Test of tracker/PMT synchronisation with scope vertical scale 100mV/div, 2mm collimator centered. # Test of tracker/PMT synchronisation with lower current, 2mm collimator centered. # Degrade beam energy and measure response with 0.95mm, 2.01mm, 2.96mm, 3.95mm, 4.90mm, 5.70mm PMMA before calorimeter, 2mm collimator centered. # Offset 2mm collimator (by 6mm in +ve) and measure response with 5.70 mm PMMA absorber. # Double 2mm collimator (12mm separated in x direction) and measure response with 5.70 mm PMMA absorber. # Offset 2mm collimator (by 6mm in +ve), no absorber. # Double 2mm collimator (12mm separated in x direction), no absorber. # Double 2mm collimator (12mm separated in x direction) repetition with lower current, no absorber. # Double 2mm collimator (12mm separated in x direction) with left-hand hole covered by 3.95 mm PMMA. == Beam Tests == === Thursday 25th October === PMT Current at HV supply -900 V, beam off: 150 &mu;A 28MeV beam. Scope triggered by tracker. Cyclotron issues meant short run (~90 mins). Test of tracker triggering/scope synchronisation. Scope timebase: 20ns/div; trigger delay 80ns; C1 vertical scale 50mV/div. Tracker data indicates beam horizontal offset of 12mm; vertical offset of 1.3mm. Data stored in directory ProCal_Birm_25-10-18 {| class="wikitable" ! style="text-align: center;" | Run Number ! style="text-align: center;" | High Voltage (V) ! style="text-align: center;" | Trigger Level (mV) ! style="text-align: center;" | Trigger Source ! style="text-align: center;" | Beam Current / Rate ! style="text-align: center;" | Collimator ! style="text-align: center;" | Filename ! style="text-align: center;" | Notes |- | style="text-align: center;" | 00 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 170pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run00_2mmCCol_160pA_TrackTrig | style="text-align: center;" | First test of tracker/PMT synchronisation |- | style="text-align: center;" | 01 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 160pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run01_2mmCCol_160pA_TrackTrig | style="text-align: center;" | Also took Caen ADC data |- | style="text-align: center;" | 02 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 160pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run02_2mmCCol_160pA_TrackTrig | style="text-align: center;" | Caen ADC run 01 data also includes run 02 (long run) |- |} === Friday 26th October === PMT Current at HV supply -900 V (actual 899.8V), beam off: 150.15 &mu;A. 36MeV beam: scattering foil inserted to increase beam size; 2&nbsp;mm on-axis collimator. Scope triggered by tracker. Scope timebase: 20ns/div; trigger delay 80ns; C1 vertical scale 50mV/div. Data stored in directory ProCal_Birm_26-10-18 {| class="wikitable" ! style="text-align: center;" | Run Number ! style="text-align: center;" | High Voltage (V) ! style="text-align: center;" | Trigger Level (mV) ! style="text-align: center;" | Trigger Source ! style="text-align: center;" | Beam Current / Rate ! style="text-align: center;" | Collimator ! style="text-align: center;" | Filename ! style="text-align: center;" | Notes |- | style="text-align: center;" | 00 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 160-200pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run00_2mmCCol_160pA_TrackTrig | Test of tracker/PMT synchronisation with 5s tracker run, 50,000 scope segments, all traces saved; check tracker trigger pulse/PMT pulse sync and numbers of events in files. |- | style="text-align: center;" | 01 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 160-170pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run01_2mmCCol_160pA_TrackTrig | Repeat of previous test; scope vertical trace increased to 100mV/div. |- | style="text-align: center;" | 02 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 100pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run02_2mmCCol_100pA_TrackTrig | Lower current check. |- | style="text-align: center;" | 03 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 80pA/~10 kHz | style="text-align: center;" | 2 mm centred | style="text-align: center;" | run03_2mmCCol_80pA_TrackTrig | Repeat of run 2, no ADC data. |- | style="text-align: center;" | 04 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 90pA/~10 kHz | style="text-align: center;" | 2 mm centred, 0.95mm PMMA | style="text-align: center;" | run04_2mmCCol_90pA_1mmPMMA | Tracker triggered, 0.95mm PMMA. |- | style="text-align: center;" | 05 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 70pA/~10 kHz | style="text-align: center;" | 2 mm centred, 0.95mm PMMA | style="text-align: center;" | run05_2mmCCol_70pA_1mmPMMA | Repeat of run 4 (ADC data for runs 4, 5 and 6). |- | style="text-align: center;" | 06 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 80pA/~10 kHz | style="text-align: center;" | 2 mm centred, 0.95mm PMMA | style="text-align: center;" | run06_2mmCCol_80pA_1mmPMMA | Repeat of run 4 (ADC data for runs 4, 5 and 6). |- | style="text-align: center;" | 07 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 60pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.01mm PMMA | style="text-align: center;" | run07_2mmCCol_60pA_2mmPMMA | Tracker triggered, 2.01mm PMMA. |- | style="text-align: center;" | 08 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 80pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.01mm PMMA | style="text-align: center;" | run08_2mmCCol_80pA_2mmPMMA | Repeat of run 7 (ADC data for runs 7, 8 and 9). |- | style="text-align: center;" | 09 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 90pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.01mm PMMA | style="text-align: center;" | run09_2mmCCol_90pA_2mmPMMA | Repeat of run 7 (ADC data for runs 7, 8 and 9). |- | style="text-align: center;" | 10 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 80pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.96mm PMMA | style="text-align: center;" | run10_2mmCCol_80pA_3mmPMMA | Tracker triggered, 2.96mm PMMA. |- | style="text-align: center;" | 11 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 85pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.96mm PMMA | style="text-align: center;" | run11_2mmCCol_85pA_3mmPMMA | Repeat of run 10 (ADC data for runs 10, 11 and 12). |- | style="text-align: center;" | 12 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 90pA/~10 kHz | style="text-align: center;" | 2 mm centred, 2.96mm PMMA | style="text-align: center;" | run12_2mmCCol_90pA_3mmPMMA | Repeat of run 10 (ADC data for runs 10, 11 and 12). |- | style="text-align: center;" | 13 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 50pA/~10 kHz | style="text-align: center;" | 2 mm centred, 3.95mm PMMA | style="text-align: center;" | run13_2mmCCol_50pA_4mmPMMA | Tracker triggered, 3.95mm PMMA. |- | style="text-align: center;" | 14 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 77pA/~10 kHz | style="text-align: center;" | 2 mm centred, 3.95mm PMMA | style="text-align: center;" | run14_2mmCCol_77pA_4mmPMMA | Repeat of run 13 (ADC data for runs 13, 14 and 15). |- | style="text-align: center;" | 15 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 90pA/~10 kHz | style="text-align: center;" | 2 mm centred, 3.95mm PMMA | style="text-align: center;" | run15_2mmCCol_90pA_4mmPMMA | Repeat of run 13 (ADC data for runs 13, 14 and 15). |- | style="text-align: center;" | 16 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 70pA/~10 kHz | style="text-align: center;" | 2 mm centred, 4.90mm PMMA | style="text-align: center;" | run16_2mmCCol_70pA_5mmPMMA | Tracker triggered, 4.90mm PMMA. Large current fluctuations: check shape of ADC spectrum. |- | style="text-align: center;" | 17 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 65pA/~10 kHz | style="text-align: center;" | 2 mm centred, 4.90mm PMMA | style="text-align: center;" | run17_2mmCCol_65pA_5mmPMMA | Repeat of run 16 (ADC data for runs 16, 17 and 18). |- | style="text-align: center;" | 18 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 60pA/~10 kHz | style="text-align: center;" | 2 mm centred, 4.90mm PMMA | style="text-align: center;" | run18_2mmCCol_60pA_5mmPMMA | Repeat of run 16 (ADC data for runs 16, 17 and 18). |- | style="text-align: center;" | 19 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 50pA/~10 kHz | style="text-align: center;" | 2 mm centred, 5.70mm PMMA | style="text-align: center;" | run19_2mmCCol_50pA_6mmPMMA | Tracker triggered, 5.70mm PMMA. |- | style="text-align: center;" | 20 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 50pA/~10 kHz | style="text-align: center;" | 2 mm centred, 5.70mm PMMA | style="text-align: center;" | run20_2mmCCol_50pA_6mmPMMA | Repeat of run 19 (ADC data for runs 19, 20 and 21). |- | style="text-align: center;" | 21 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 60pA/~10 kHz | style="text-align: center;" | 2 mm centred, 5.70mm PMMA | style="text-align: center;" | run21_2mmCCol_60pA_6mmPMMA | Repeat of run 19 (ADC data for runs 19, 20 and 21). |- | style="text-align: center;" | 22 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 90-140pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset in +ve x, 5.70mm PMMA. | style="text-align: center;" | run22_2mmOSCol_100pA_6mmPMMA | Tracker triggered, 2&nbsp;mm collimator with 6&nbsp;mm offset in +ve x direction; 5.70&nbsp;mm PMMA absorber. |- | style="text-align: center;" | 23 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 85-120pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset, 5.70mm PMMA | style="text-align: center;" | run23_2mmOSCol_100pA_6mmPMMA | Repeat of run 22 (ADC data for runs 22, 23 and 24). |- | style="text-align: center;" | 24 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 10-75pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset, 5.70mm PMMA | style="text-align: center;" | run24_2mmOSCol_70pA_6mmPMMA | Repeat of run 22 (ADC data for runs 22, 23 and 24). |- | style="text-align: center;" | 25 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 40-50pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart in x, 5.70mm PMMA | style="text-align: center;" | run25_2mmSBCol_40pA_6mmPMMA | Tracker triggered, 2&nbsp;mm hole pair collimator with centres 12&nbsp;mm apart in x direction, 5.70&nbsp;mm PMMA absorber. |- | style="text-align: center;" | 26 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 45pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart, 5.70mm PMMA | style="text-align: center;" | run26_2mmSBCol_45pA_6mmPMMA | Repeat of run 25 (ADC data for runs 25, 26 and 27). |- | style="text-align: center;" | 27 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 45-55pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart, 5.70mm PMMA | style="text-align: center;" | run27_2mmSBCol_50pA_6mmPMMA | Repeat of run 25 (ADC data for runs 25, 26 and 27). |- | style="text-align: center;" | 28 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 70-90pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset in +ve x. | style="text-align: center;" | run28_2mmOSCol_70pA_TrackTrig | Tracker triggered, 2&nbsp;mm collimator with 6&nbsp;mm offset in +ve x direction. |- | style="text-align: center;" | 29 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 60pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset | style="text-align: center;" | run29_2mmOSCol_60pA_TrackTrig | Repeat of run 28 (ADC data for runs 28, 29 and 30). |- | style="text-align: center;" | 30 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 60pA/~10 kHz | style="text-align: center;" | 2 mm with 6mm offset | style="text-align: center;" | run30_2mmOSCol_60pA_TrackTrig | Repeat of run 28 (ADC data for runs 28, 29 and 30). |- | style="text-align: center;" | 31 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 40-50pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart in x. | style="text-align: center;" | run31_2mmSBCol_46pA_TrackTrig | Tracker triggered, 2&nbsp;mm hole pair collimator with centres 12&nbsp;mm apart in x direction. |- | style="text-align: center;" | 32 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 40-50pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart | style="text-align: center;" | run32_2mmSBCol_45pA_TrackTrig | Repeat of run 31 (ADC data for runs 31, 32 and 33). |- | style="text-align: center;" | 33 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 35-40pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart | style="text-align: center;" | run33_2mmSBCol_40pA_TrackTrig | Repeat of run 31 (ADC data for runs 31, 32 and 33); large current dropout. |- | style="text-align: center;" | 34 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 10pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart in x. | style="text-align: center;" | run34_2mmSBCol_10pA_TrackTrig | Tracker triggered, 2&nbsp;mm hole pair collimator with centres 12&nbsp;mm apart in x direction; lower current repeat of 2 hole collimator. |- | style="text-align: center;" | 35 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 10pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart | style="text-align: center;" | run35_2mmSBCol_10pA_TrackTrig | Repeat of run 34 (ADC data for runs 34, 35 and 36). |- | style="text-align: center;" | 36 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 8pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart | style="text-align: center;" | run36_2mmSBCol_8pA_TrackTrig | Repeat of run 34 (ADC data for runs 34, 35 and 36). |- | style="text-align: center;" | 37 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 20-24pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run37_2mmEPCol_20pA_4mmPMMA | Tracker triggered, 2&nbsp;mm hole pair collimator with centres 12&nbsp;mm apart in x direction; left-hand hole covered by 3.95&mm PMMA. |- | style="text-align: center;" | 38 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 11pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run38_2mmEPCol_11pA_4mmPMMA | Repeat of run 37 (ADC data for runs 37, 38 and 39). |- | style="text-align: center;" | 39 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 9pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run39_2mmEPCol_9pA_4mmPMMA | Repeat of run 37 (ADC data for runs 37, 38 and 39). |- | style="text-align: center;" | 40 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 20-70pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run40_2mmEPCol_40pA_4mmPMMA | Tracker triggered, 2&nbsp;mm hole pair collimator with centres 12&nbsp;mm apart in x direction; left-hand hole covered by 3.95&mm PMMA. |- | style="text-align: center;" | 41 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 40-120pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run41_2mmEPCol_40pA_4mmPMMA | Repeat of run 40 (ADC data for runs 40, 41 and 42); large current fluctuations. |- | style="text-align: center;" | 42 | style="text-align: center;" | -900 | style="text-align: center;" | 70, +ve | style="text-align: center;" | Tracker (C2) | style="text-align: center;" | 15-45pA/~10 kHz | style="text-align: center;" | 2 mm pair, centres 12mm apart with 3.95mm PMMA over 1 hole. | style="text-align: center;" | run42_2mmEPCol_30pA_4mmPMMA | Repeat of run 40 (ADC data for runs 40, 41 and 42). |- |}

Return to Proton Calorimetry/Experimental Runs/2018/Oct25-6.