Radiotherapy/Experimental Runs/2022-07-26
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End of range telescope tests.
Second experimental measurements with Cyberknife at Birmingham. Green scintillator thin sheet measurements only.
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 | ||||||
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| 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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| 14 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot Scan Animation | Spot 1 |
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| 15 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 2 |
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| 16 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 3 |
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| 17 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 4 |
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| 18 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 5 |
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| 19 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 6 |
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| 20 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 7 |
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| 21 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 8 |
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| 22 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 9 |
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| 23 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 10 |
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| 24 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 11 |
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| 25 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 12 |
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| 26 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 13. Calibration spot for middle of scintillator that we align the beam to. |
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| 27 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 14 |
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| 28 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 15 |
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| 29 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 15. Repeat with beam with more intensity. |
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| 30 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | PMMA removed! |
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| 31 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 101.8 | Energy Scan Animation |
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| 32 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 99.6 |
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| 33 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 97.4 |
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| 34 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 95.1 |
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| 35 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 92.8 |
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| 36 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 90.4 |
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| 37 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 86.4 |
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| 38 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 85.6 |
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| 39 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 84.7 |
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| 40 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 83.9 |
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| 41 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 83.0 |
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| 42 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 82.3 |
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| 43 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 81.3 |
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| 44 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 80.5 |
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| 45 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 79.6 |
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| 46 | N/A | High | 50% | 0.6 x 1e10/5s | 78.7 | Sensor saturation! Reduce intensity. | N/A | |||
| 47 | f/5.6 | 1s | High | 20% | 2.4 x 1e9/5s | 78.7 |
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| 48 | f/5.6 | 1s | High | 20% | 2.4 x 1e9/5s | 77.8 |
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| 49 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 76.9 |
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| 50 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 76.0 |
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| 51 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 75.1 |
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| 52 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 74.2 |
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| 53 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 72.4 |
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| 54 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 70.5 |
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| 55 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 68.5 |
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| 56 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 66.5 |
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| 57 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 64.5 |
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| 58 | f/5 | 1s | High | 20% | 2.4 x 1e9/5s | 62.4 |
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| 59 | f/7.1 | 1s | High | 100% | 1.2 x 1e10/5s | 85.6 | Intensity Scan Animation |
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| 60 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 85.6 |
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| 61 | f/4.5 | 1s | High | 20% | 2.4 x 1e9/5s | 85.6 |
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| 62 | f/3.2 | 1s | High | 10% | 1.2 x 1e9/5s | 85.6 |
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| 63 | f/3.2 | 1s | Low | 10% | 1.2 x 1e9/5s | 85.6 | Sensor saturation! |
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| 64 | f/3.2 | 5s | High | 2.22% | 2.66 x 1e8/5s | 85.6 | Factor 4.5 reduction |
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| 65 | f/3.2 | 5s | Low | 2.22% | 2.66 x 1e8/5s | 85.6 |
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| 66 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot Scan Animation | Spot 1. 77 mm of PMMA (11 sheets) in front of enclosure for calibration tests. Acquire 2nd spill of every spot. |
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| 67 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 2. 5 - 6 spills per spot. Column K shows the number of the spill recorded, starting at 0 with an empty spill, 1 - 1st spill of 1st spot, 2 - 2ns spill of 1st spot etc. So 7 is 2nd spill of 2nd spot. |
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| 68 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 3 |
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| 69 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 4 |
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| 70 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 5 |
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| 71 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 6 |
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| 72 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 7 |
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| 73 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 8 |
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| 74 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 9 |
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| 75 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 10 |
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| 76 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 11 |
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| 77 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 12 |
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| 78 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 13 |
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| 79 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 14 |
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| 80 | f/5.6 | 1s | High | 50% | 0.6 x 1e10/5s | 252.7 | Spot 15 |
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| 81 | f/3.2 | 1s | low | 50% | 0.6 x 1e10/5s | 99.6 | Crosstalk check | 56 mm of PMMA (8 sheets) in front of enclosure. In stack: 3 mm scintillator sheet and 2.6 mm sheet (from front of stack). |
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| 82 | f/3.2 | 1s | low | 50% | 0.6 x 1e10/5s | 99.6 |
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| 83 | f/3.2 | 1s | low) | 50% | 0.6 x 1e10/5s | 99.6 | Note: no beam seen at 86.4 MeV |
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Experiment Plan
Rev. B Prototype
- Background & calibration shoot-throughs (background at all 8 DDC232 full-scale ranges – likely 12.5 pC is most appropriate FSR)
- Pencil beams, 70-130 MeV, 10 MeV steps, in both directions into stack. For direction with Bragg peak in clear sheets, test 2 currents (high/low)
Rev. C Prototype
- Background & calibration shoot-throughs (12.5 pC FSR)
- Pencil beams, 70-110 MeV, 5 MeV steps, at clinical current.
Experiment Notes
Range calorimeter measurements with CMOS sensor + photodiodes.
Images from Sensor: /unix/www/html/pbt/wikiData/images/UCLH_Jun2022/CMOS
Photodiode hexadecimal data: /unix/pbt/data/uclh/20220616/DDC232
| Run number | Beam Energy (MeV) | Estimated Range (mm) | Current (nA) | Spot size (mm, FWHM) | DDC232 FSR (pC) | DDC232 Integration Time (us) | Degrader WET (mm) | Comments | Photodiode QB Fit | CMOS QB Fit | PDL Comparison | Replay Fit |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | Background | N/A | N/A | N/A | 350 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 1 | Background | N/A | N/A | N/A | 300 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 2 | Background | N/A | N/A | N/A | 250 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 3 | Background | N/A | N/A | N/A | 200 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 4 | Background | N/A | N/A | N/A | 150 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 5 | Background | N/A | N/A | N/A | 100 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 6 | Background | N/A | N/A | N/A | 50 | 170 | 0 | room light off | N/A | N/A | N/A | N/A |
| 7 | Background | N/A | N/A | N/A | 12.5 | 170 | 0 | room light off (continued) | N/A | N/A | N/A | N/A |
| 8 | 240 | N/A | 10 | N/A | 350 | 170 | 50 | LH shoot through; 270° gantry; CMOS sensor saturated | N/A | N/A | N/A | N/A |
| 9 | 240 | N/A | 10 | N/A | 12.5 | 170 | 50 | LH shoot through; 270° gantry; CMOS sensor saturated | N/A | N/A | N/A | N/A |
| 10 | 240 | N/A | 10 | N/A | 12.5 | 170 | 50 | RH shoot through; 90° gantry; CMOS sensor saturated | N/A | N/A | N/A | N/A |
| 11 | 200 | N/A | 90 | N/A | 12.5 | 170 | 50 | RH shoot through; 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 12 | 200 | N/A | 20 | N/A | 12.5 | 170 | 50 | RH shoot through; 90° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 13 | 130 | N/A | 50 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor slight saturation; | N/A | N/A | N/A | N/A |
| 14 | 120 | N/A | 60 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 15 | 120 | N/A | 270 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 16 | 110 | N/A | 70 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 17 | 110 | N/A | 300 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 18 | 100 | N/A | 90 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 19 | 100 | N/A | 350 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 20 | 90 | N/A | 110 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 21 | 90 | N/A | 400 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 22 | 80 | N/A | 500 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 23 | 70 | N/A | 700 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 24 | 130 | N/A | 200 | N/A | 12.5 | 170 | 0 | 90° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 25 | 200 | N/A | 20 | N/A | 12.5 | 170 | 50 | LH shoot through; 270° gantry; CMOS sensor fine; | N/A | N/A | N/A | N/A |
| 26 | 130 | N/A | 200 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 27 | 120 | N/A | 270 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 28 | 110 | N/A | 300 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 29 | 100 | N/A | 350 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 30 | 90 | N/A | 400 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 31 | 80 | N/A | 500 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 32 | 70 | N/A | 700 | N/A | 12.5 | 170 | 0 | 270° gantry; CMOS sensor saturated; | N/A | N/A | N/A | N/A |
| 33 | background | N/A | N/A | N/A | 12.5 | 170 | 0 | RevC onwards; 270° gantry | N/A | N/A | N/A | N/A |
| 34 | 240 | N/A | 13 | N/A | 12.5 | 170 | 50 | LH shoot through; 270° gantry | N/A | N/A | N/A | N/A |
| 35 | 240 | N/A | 13 | N/A | 12.5 | 170 | 50 | RH shoot through; 90° gantry | N/A | N/A | N/A | N/A |
| 36 | 110 | N/A | 300 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 37 | 105 | N/A | 350 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 38 | 100 | N/A | 350 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 39 | 95 | N/A | 400 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 40 | 90 | N/A | 400 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 41 | 85 | N/A | 500 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 42 | 80 | N/A | 500 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 43 | 75 | N/A | 700 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |
| 44 | 70 | N/A | 700 | N/A | 12.5 | 170 | 0 | 90° gantry; | N/A | N/A | N/A | N/A |