Proton Calorimetry/Experimental Runs/2018/Mar22
Beam tests of the UCL plastic scintillator range calorimeter.
Night of Thursday 22th to Friday 23rd of March 2018
Pre-data Taking Information and Notes
- Data was acquired with the DSLR camera and the ISDI CMOS sensor.
- The average background value per pixel for the sensor is ~ 2500. The sensor pixel dimensions are 1030 x 1536. The sensor frame rate was always set to 25 frames per second.
- NO optical grease between scintillator and sensor.
- Beam is extracted over 5 seconds (one spill). The full capacity (100%) of the synchrotron ring is 1.2x1e10 protons.
- Scintillator stack arrangement: 15 x 2 mm, 15 x 2.6 mm and 1 x 3 mm sheets used: In ascending order from the back of the scintillator to the front/beam. Except for sheet number 21 (2mm) which is placed at the end (away end from the beam) of the stack because of a crack in the sheet. Sheet numbers from front to end (in beam direction): 31,25,24,23,20,16,12,11,9,8,6,5,4,3,2,1,30,29,28,27,26,22,19,18,17,15,14,13,10,7,21
- Folder for DSLR images: digiCamControl/20180322_medaustron
- Note: When powering on PC, sensor has to be connected, but unpowered!
- 16383 = saturation pixel number (16 bit x 1 tap)
- Sensor images are always saved as a sequence of 21 Tiff images
- Folder for sensor images: XCAP/data/20180322_medaustron
Data Taking
| DSLR | Sensor | Beam | Info | Thumbnails | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Run number | Aperture | Exposure (s) | Full Well Mode | Intensity (%) | Number of particles/s | Beam Energy (MeV) | Test type | Comments | DSLR | Sensor |
| 1 | f/5 | 1s | Low | N/A | Background | Background run with ND filter |
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| 2 | f/5 | 1s | Low | 100% | 1.2 x 1e10/5s | 80.5 | Bragg peak | ND filter in - not enough light passes through filter. Remove! DSLR slightly saturated. 10 spills used for this run. |
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|
| 3 | f/8 | 1s | High | N/A | Background | No ND filter! |
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| ||
| 4 | f/8 | 1s | High | 100% | 1.2 x 1e10/5s | 80.5 | Bragg peak |
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||
| 5 | f/7.1 | 1s | N/A | 100% | 1.2 x 1e10/5s | 80.5 | No beam caught |
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N/A | |
| 6 | f/7.1 | 1s | N/A | 100% | 1.2 x 1e10/5s | 80.5 | No beam caught |
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N/A | |
| 7 | f/7.1 | 1s | N/A | 100% | 1.2 x 1e10/5s | 80.5 | Perfect for DSLR, saturating sensor |
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N/A | |
| 8 | f/5 | 1s | High | 50% | 0.6 x 1e10/5s | 80.5 | Good for sensor.77 mm of PMMA (11 sheets) in front of enclosure for calibration tests. |
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| 9 | f/5.6 | 1s | N/A | 50% | 0.6 x 1e10/5s | 80.5 |
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N/A | ||
| 10 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 85.6 |
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| 11 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 85.6 |
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| 12 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 62.4 |
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| 13 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 62.4 |
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