PAA 8-22-13
Au-196
crucible #5 Gold + Sand irradiation
The link below will take you to an analysis of the photon spectrum observed when a mixture of Au + Sand in a crucible is irradiated for 1 hour using a 44 MeV, 2kW electron beam incident on a 4 mm W converter
Gold Foil
The link below will take you to the 0.002" thick gold foil measurements
Barium Oxide BaO
Y-88 foil
Nickel normalization foils
runlist
ntuple->Draw("(ADC5-62.1537)/2.82207 >>(4096,0,4096)");
ntuple->Draw("(ADC9-39.8)/2.61747 >>(4096,0,4096)")
Group 1
| Run | Description | |
| 5786 | 21 min, 6 sec | |
| 5790 | Ba-133 source, TDC not getting hits | |
| 5791 | Ba-133 source , TDC not getting hits | |
| 5792 | Ba-133 source, TDC not getting hits | |
| 5817 | Gold foils, only counting with detector 180-3 (no TDC) 8 min 2 sec long, 556 Hz | |
| 5818 | Ni foil F1, only counting with detector 180-3 (no TDC) 6 min 31 sec long, 399 Hz | |
| 5819 | Ni foil B1, only counting with detector 180-3 (no TDC) 7 min 36 sec long, 417 Hz | |
| 5820 | empty, only counting with detector 180-3 (no TDC) 8 min 18 sec long, 396 Hz | |
| 5821 | Ba-132, only counting with detector 180-3 (no TDC) 6 min 1 sec long, Hz |
Group 2
Due to the low rates we reconfigured the setup putting the two detectors closer together
| Run | Description | |
| 5822 | Ba-132 + Al rod 130100-012, only counting with detector 180-3 (no TDC) 10 min 56 sec long, 459 Hz | |
| 5823 | empty rod 130100-011, only counting with detector 180-3 (no TDC) 11 min 49 sec long, 439 Hz | |
| 5825 | Y-88 130100-010, only counting with detector 180-3 (no TDC) 19 min 7 sec long, 500 Hz | |
| 5826 | Au-196, only counting with detector 180-3 (no TDC) 8 min 38 sec long, 1096Hz | |
| 5827 | sand+crucible, only counting with detector 180-3 (no TDC) 8 min 10 sec long, 989Hz | |
| 5828 | Coincidence, sand+crucible, only counting with detector 180-3 (no TDC) 15 hrs, 4 min 21 sec long, 47Hz, Det B HV OFF, Det B Coincidence window was more than 400 nsec | |
| 5829 | Coincidence, Au+sand+crucible #5 , 200 ns Coincidence window, no TDC hrs, min sec long, 23 Hz, Det B HV ON, ROC crashed after 45 hours 28 minutes, 285302 events recorded, scaler says 199440 seconds for run time=> 55 hours, I think the run lasted 2 hours assuming a 40 Hz counting rate and 285302 events, I think Det B warmed up during run, noise went high and high counting rate made ROC crash. | |
| 5831 | Coincidence, Au Foil 130100-009, only counting with detector 180-3 (no TDC) 35 min 6 sec long, 90Hz, Det B HV OFF, Det B Coincidence window was more than 400 nsec, Ignore run Det B in trigger | |
| 5832 | OR, Au Foil 130100-009, only counting with detector 180-3 (no TDC) 35 min 6 sec long, 16 kHz,Ignore run Det B in trigger | |
| 5833 | OR, Ni Foil B1, only counting with detector 180-3 (no TDC) 35 min 6 sec long, 16 kHz, Det B HV OFF,Ignore run Det B in trigger | |
| 5834 | AND, Ni Foil B1, only counting with detector 180-3 (no TDC) min sec long, 23 Hz, Det B HV OFF,Ignore run Det B in trigger | |
| 5836 | OR, Ni Foil B1, only counting with detector 180-3 (no TDC) 7 min 53sec long, 213 Hz, Det B HV OFF, | |
| 5837 | OR, Ni Foil F1, only counting with detector 180-3 (no TDC) 8 min 20 sec long, 211 Hz, Det B HV OFF, | |
| 5838 | OR, Au Foil 130100-009, only counting with detector 180-3 (no TDC) 8 min 1sec long, 808 Hz, Det B HV OFF, | |
| 5839 | OR, Empty Crucible that held BaO during irradiation, only counting with detector 180-3 (no TDC) 8 min 24 sec long, 222 Hz, Det B HV OFF, | |
| 5846 | OR, no sample t, only counting with detector 180-3 (no TDC) min sec long, Hz, Det B HV OFF, | |
| 5850 | OR, no sample t, (no TDC) 8 min 28 sec long, 499 Hz, Det B HV ON, | |
| 5852 | Gold Foil 130100-009, only counting with detector 180-3 (no TDC) 7 min 34 sec long, 716 Hz, Det B HV OFF, | |
| 5853 | Ni -001(B1), only counting with detector 180-3 (no TDC) 9 min 10 sec long, 195 Hz, Det B HV OFF, | |
| 5854 | Ni -002 (B2), only counting with detector 180-3 (no TDC) 8 min 35 sec long, 233 Hz, Det B HV OFF, | |
| 5855 | Ni -003 (B3), only counting with detector 180-3 (no TDC) 8 min 40 sec long, 214 Hz, Det B HV OFF, | |
| 5856 | Ni -004 (B4), only counting with detector 180-3 (no TDC) 7 min 48 sec long, 213 Hz, Det B HV OFF, | |
| 5857 | Ni -006 (F2), only counting with detector 180-3 (no TDC) 8 min 1 sec long, 241 Hz, Det B HV OFF, | |
| 5858 | Ni -007 (F3), only counting with detector 180-3 (no TDC) 8 min 2 sec long, 231 Hz, Det B HV OFF, | |
| 5859 | Ni -008 (F4), only counting with detector 180-3 (no TDC) 8 min 3 sec long, 217 Hz, Det B HV OFF, | |
| 5860 | Ni -009 (F1), only counting with detector 180-3 (no TDC) 8 min 0 sec long, 187 Hz, Det B HV OFF, | |
| 5889 | Ba-133 source 129790 1.2 uCi, only counting with detector 180-3, TDC is back (someone changed the NIM->ECL connector polarity) 2 min 44 sec long, 1944 Hz, Det B HV OFF, | |
| 5900 | Ba-133 source 129789 0.12 uCi, only counting with detector 180-3, 10 min 57 sec long, 378 Hz, Det B HV OFF, | |
| 5901 | Y-88 130100-010, only counting with detector 180-3 20 min 6 sec long, 184 Hz | |
| 5902 | Ba-132 + Al rod 130100-012, only counting with detector 180-3 9 min 56sec long, 191 Hz | |
| 5903 | empty rod 130100-011, only counting with detector 180-3 23 min 19 sec long, 179 Hz |
Group 3
changed Det 180-2 post amp 8.92 to 4.62
| Run | Description | |
| 5905 | Y-88 130100-010 changed post amp 8.92 to 4.62 , only counting with detector 180-3 15 min 28 sec long, 70 Hz | |
| 5906 | Na-22 0.1 uCi source # 129741 , only counting with detector 180-3 3 min 42 sec long, 146 Hz | |
| 5907 | Ba-133 0.1 uCi source # 129789 , only counting with detector 180-3 2 min 42 sec long, 140 Hz |
Group 4
changed Det 180-2 post amp from 4.62 back to 8.92
- TDC is working again below is a table identifying channels and detector
| Det | ADC | TDC |
| 180-2 | ADC5 | TDC16 |
| Det B | ADC9 | TDC19 |
| Run | Description | |
| 5908 | Ba-133 0.1 uCi source # 129789 , Using both detectors in OR mode | |
| 5909 | Ba-133 0.1 uCi source # 129789 , Using both detectors in OR mode , changed Det 180-2 threshold from 18 to 10 mV, 8 min 30 sec long, 783 Hz | |
| 5910 | Ba-132 + Al rod 130100-012, Using both detectors in OR mode, 33 min 5 sec long, Hz |
There is a peak in ADC9 at high energy but not in ADC5. I will turn down the post amp for ADC5 (Det 180-2).
Group 5 9/4/13
Det 180-2 Postamp is set to a fine gain of 8 and a course gain of 20, the CFD is at 10 mV
Det B Postamp is set to a fine gain of 9.32 and a course gain of 20, the CFD is at 10 mV
| Run | Description | |
| 5912 | Ba-133 0.1 uCi source # 129789 , Using both detectors OR mode , 4 min 21 sec long, 809 Hz | |
| 5913 | Na-22 0.1 uCi source # 129741, Using both detectors OR mode, 4 min 8 sec long, 656 Hz | |
| 5914 | Ba-132 + Al rod 130100-012, Using both detectors OR mode, 13 min 17 sec long, 470 Hz | |
| 5915 | Ba-132 + Al rod 130100-012, Using both detectors AND mode, 9 hrs 6 min 57 sec long, 1.2 Hz |
Group 6 9/5/13
Accelerator was on during these measurements, perhaps the RF is adding noise to the ground line as I saw a 3 keV RMS in the Na-22 run.
| Run | Description |
| 5916 | Au foil 130100-009, Using only Det 180-2 (Det B warm), 10 min 25 sec long, 388 Hz |
| 5917 | Ba-133 source # 129789, Using only Det 180-2 (Det B warm), 2 min 42 sec long, 407 Hz |
| 5918 | Ni foil F2 # 130100-006, Using only Det 180-2 (Det B warm), 7 min 33 sec long, 196 Hz |
| 5919 | Ni foil B1 # 130100-001, Using only Det 180-2 (Det B warm), 8 min 50 sec long, 190 Hz |
| 5920 | Ni foil F1 # 130100-005, Using only Det 180-2 (Det B warm), 10 min 50 sec long, 190 Hz |
| 5921 | Ni foil B4 # 130100-004, Using only Det 180-2 (Det B warm), 15 min 52 sec long, 195 Hz |
| 5922 | Na-22 source # 129741, Using only Det 180-2 (Det B warm), 6 min 19 sec long, 299 Hz |
| 5923 | No target (Background), Using only Det 180-2 (Det B warm), 50 min 21 sec long, 185 Hz |
Group 7 9/12/13
| Run | Description |
| 5996 | Ba-133 129789 0.1 uCi , Using only Det 180-2 with its HV off (Det B warm), 6 min 32 sec long, 173 Hz |
| 5997 | Ba-133 129790 1 uCi , Using only Det 180-2 with its HV off (Det B warm), 9 min 33 sec long, 653 Hz |
| 5999 | Ba-133 129790 1 uCi , Using only Det 180-2 with its HV off (Det B warm),Change post amp from 20 to 50 and raised discriminator from 10 to 30 mV 3 min 10 sec long, 265 Hz |
| 6000 | Ba-133 129790 1 uCi , Using only Det 180-2 with its HV off (Det B warm),Change post amp from 50 to 100 and raised discriminator from 30 to 40 mV 4 min 2 sec long, 803 Hz |
Group 7 9/12/13
| Run | Description |
| 6004 | Ba-133 129790 1 uCi , Using only Det B , min sec long, Hz |
Group 8 9/15/13
Ortec post amp setting:
- Gain = 51.5
- Shaping Time = 1.5 usec
Canbera discriminator:
- Lower Energy = 8 mV
- Upper Energy = Max
- Delay = Min = 0
| Run | Description |
| 6012 | Ba-133 129790 1 uCi , Using only Det B , 5 min 31 sec long, 1255 Hz |
| 6013 | Ba-133 129790 1 uCi , Using only Det B HV off , 3 min sec long, Hz, rate went up to 2kHz and ROC crashed after 200k event |
| 6015 | Ba-133 129790 1 uCi , Using only Det B , 2 min 34sec long, Hz rate was 1400 Hz so moved source farther away to be on top of aluminum stand |
| 6016 | Ba-133 129790 1 uCi , Using only Det B , 5 min 2sec long, 520 Hz |
| 6017 | No Source (Background) , Using only Det B , 8 min 43sec long, 221 Hz , pulser was in EXT trigger mode. |
| 6020 | No Source (Background) , Using only Det B , 15 hours, 12 min 37 sec long, 55 Hz increase CFD threshold to 49 mv (~430 keV) to measure high energy component of spectrum overnight, changer pulser to INTeral trigger mode so scaler now has 1Hz clock |
| 6021 | Ba-133 129790 1 uCi , Using only Det B , 4 min 5sec long, 505 Hz ,decrease CFD threshold to 8 mv (~70 keV) |
| 6022 | Y-88 1 uCi , Using only Det B , 4 min 35sec long, 219 Hz |
| 6023 | Y-88 1 uCi , Using only Det B , min sec long, Hz ,Moved source up 2" closer |