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Online Radiation Monitoring in HF - recent measurements from HF RADDAM fibers

Online Radiation Monitoring in HF - recent measurements from HF RADDAM fibers (preliminary Commissioning results) ‏ Kerem Cankocak, Ferhat Ozok, Luis Lebolo, Jean-Pierre-Merlo ‏. HCAL DPG Meeting 11 August. 1. Quick Review of Radiation damage on HF fibers.

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Online Radiation Monitoring in HF - recent measurements from HF RADDAM fibers

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  1. Online Radiation Monitoring in HF - recent measurements from HF RADDAM fibers (preliminary Commissioning results)‏ Kerem Cankocak, Ferhat Ozok, Luis Lebolo, Jean-Pierre-Merlo‏ HCAL DPG Meeting 11 August 1

  2. Quick Review of Radiation damage on HF fibers Attenuation parameters wrt the radiation Transmitted light spectra up to 1.25 Grad (24 GeV protons at IRRAD)‏ More in “Radiation-hardness measurements of high OH content quartz fibres irradiated with 24 GeV protons “ Nuclear Instruments and Methods in Physics Research A 585 (2008) 20–27up to 1.25 Grad 2

  3. Quick Review of Radiation damage measurement with RADDAM setup at IRRAD (2006)‏ Laser light shifted in blue light (450 nm)‏ PMT HF wedge RADDAM principle: to measure the ratio S1/S2 Tests results from 2006 in IRRAD 2.6 Mrad/h ~250 Mrad in total More in the talk 2006 Fall USCMS meeting Fermilab, by Numan Bakirci (10/27/2006)‏ 3

  4. HF RADDAM fibers installation (A) EM2 HAD4 EM6 HAD8 EM10 HAD12 EM13 (B) HAD2 EM4 HAD6 EM8 HAD10 EM12 HAD13 Phase = TTC – laser 4 Tests results from 2006 in IRRAD using the HF DAQ readout

  5. DQM outlook of Raddam fibers Overflow in some channels DQM binning range <5000 5

  6. Recent Laser Runs for HF RADDAM fibers Filter Wheel 1 - pos 0 (0.00 B)‏ -------------------------------------- 1. set HV 1100/374/177 Run 54147 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54148 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54150 - 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54152 - 1000 events - FW2 pos3 (-0.70 Bels)‏ HV 1250/425/201 Run 54159 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54128 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54161 - 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54164 - 1000 events - FW2 pos3 (-0.70 Bels)‏ HV 1350/460/218 Run 54143 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54139 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54142 - 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54169 - 1000 events - FW2 pos3 (-0.70 Bels)‏ 2. set HV 1350/460/218 Run 54189 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54190 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54191 - 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54192 - 1000 events - FW2 pos3 (-0.70 Bels)‏ HV 1250/425/201 Run 54196- 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54197- 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54198- 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54199- 1000 events - FW2 pos3 (-0.70 Bels)‏ HV 1150/391/185 Run 54203 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54204 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54207 - 1000 events - FW2 pos4 (-1.03 Bels)‏ HV 1100/374/177 Run 54217 - 1000 events - FW2 pos6 (-1.69 Bels)‏ Run 54221 - 1000 events - FW2 pos5 (-1.36 Bels)‏ Run 54224 - 1000 events - FW2 pos4 (-1.03 Bels)‏ Run 54227 - 1000 events - FW2 pos3 (-0.70 Bels)‏ 1. fiber set 1.5 m. fiber 250  (Florida)‏ 6 cm. 800  fiber PMT's laser 800  (Polymicro)‏ 2. fiber set PMT's laser Laser settings: Wavelength: 337.1 + 1 nm Repetition Rate: 1- 30 Hz Pulse Width: < 4 ns Pulse Energy (@ 10 Hz): 260 uJ Pulse-to-Pulse Energy Stability: < 4.5% std. dev. Trigger In to Pulse Out: 1000 ns (< 90 ns std. dev.)‏ Optical Pulse to Optosync: 50 ns (< 500 ps std. dev.)‏ 6

  7. Example of an Instable channel (eta 38, Phi 37, depth 2)‏ Lost in one run

  8. Good ratios from 54 channels out of 56 Raddam Channels Bad ratio!

  9. fiber setting 2 :FW2 pos3 (-0.7 Bels) with the first channel Good ratios!

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