PAA 11-11-13
Irradiated Y-88 and Au=186 for 4 hours at 23 MeV e- energy and
Samples place in Bin A60
Most upstream Ni target is # 130113-001
Ni target between Y-88 and Au is # 130113-002
Au-186 sample is 130113-003 Y-88 sample is 130113-004
Au-196 measurement using Detector D in position F and MPA 181775.mpa
Y-88 measurement using Detector D in position F and MPA 181776.mpa
runlist
Poor COincidence setup
| Run | Description | |
| 6686 | Logic Unit in OR for Y-88 sample 130113-004 | |
| 6687 | Logic Unit in OR for Au-196 sample 130113-004, rate too high for DAQ | |
| 6688 | Logic Unit in AND for Au-196 sample 130113-004, using Detector B and NaI, rate was 10 Hz, can't see 80 keV peak so I will increase HpGe post amp. | |
| 6689 | Logic Unit in AND for Au-196 sample 130113-004, increase post amp from 20 to 50, 15 hrs 3x min 51 sec | |
| 6690 | Logic Unit in OR for Ns-22 sample # 129741, post amp at 50, only 511 peak because postamp has 1 MeV peak in overflow | |
| 6691 | Logic Unit in OR for Cs-137 sample # 124840, post amp at 50 | |
| 6692 | Logic Unit in OR for Ba-133 sample # 129789, post amp at 50 | |
| 6693 | Logic Unit in OR for Mn-54 sample # 129804, post amp at 50 | |
| 6694 | Changed post amp on HpGe Logic Unit in OR for Mn-54 sample # 129804, post amp at 20, 4 min 37 sec | |
| 6695 | Logic Unit in OR for Co-60 sample # 129737, post amp at 20, | |
| 6696 | Logic Unit in OR for Na-22 sample # 129741, post amp at 20, | |
| 6697 | Logic Unit in OR for Cs-137 sample # 124840, post amp at 20, | |
| 6698 | Logic Unit in OR for Ba-133 sample # 129789, post amp at 20, 4 min 44 sec | |
| 6699 | Logic Unit in OR for Ni-57 sample # 130113-001, post amp at 20, 5 min 42 sec | |
| 6700 | Logic Unit in OR for Ni-57 sample # 130113-002, post amp at 20, 5 min 2 sec | |
| 6701 | Logic Unit in OR for Y-88 sample # 130113-004, post amp at 20, min sec | |
| 6702 | Logic Unit in COIN for Y-88 sample # 130113-004, post amp at 20, min sec, rate is about 0.21 Hz, ended early to run nickel | |
| 6703 | Logic Unit in COIN for Ni-57 sample # 130113-002, post amp at 20, rate is about 0.4 Hz, 22 hrs 55 min 8 sec, TDC16-TDC19 is not peaked around zero , the NIM2ECL translator for TDC19 does not have a square output, the problem was due to using the wrong CFD output | |
| 6704 | Logic Unit in OR for Ni-57 sample # 130113-002, post amp at 20, rate is about 883 Hz, 4 min 0 sec | |
| 6705 | Logic Unit in OR for Y-88 sample # 130113-004, post amp at 20, rate is about 770 Hz, 4 min 0 sec, | |
| 6706 | Logic Unit in OR for Ni-57 sample # 130113-001, post amp at 20, rate is about 902 Hz, 4 min 5sec, Using correct NaI CFD channel, TDC19 should be good now will check with a coincidence run using Co-60 after taking singles measurements on the four irradiation samples | |
| 6707 | Logic Unit in OR for Au-196 sample # 130113-003, post amp at 20, rate is about 4500 Hz, 37 sec, | |
| 6708 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 50, rate is about 11 Hz | |
| 6709 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 50, rate is about 150 Hz changed output width of CFDs from 500 ns to be about 1 usec. | |
| 6710 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 50, rate is about 150 Hz inserted 1 usec delay on HpGe timing., TDC16-19 peak is -110 with an RMS of 22.5 nsec, adjusted delay near end of run | |
| 6711 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 50, rate is about 150 Hz inserted 1 usec delay on HpGe timing., TDC16-19 peak is -60 with an RMS of 22.5 nsec, 51 min 38 sec | |
| 6712 | Logic Unit in OR for Au-196 sample # 130113-003, post amp at 50, rate is about 4500 Hz | |
| 6713 | Logic Unit in OR for Au-196 sample # 130113-003, post amp at 50, rate is about 4500 Hz | |
| 6714 | Logic Unit in OR for Au-196 sample # 130113-003, post amp at 20, rate is about 140 Hz | |
| 6715 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 20, rate is about 140 Hz | |
| 6716 | Logic Unit in AND for Ni-57 sample # 130113-002, post amp at 20, rate is about 10 Hz, | |
| 6717 | Logic Unit in OR for Ni-57 sample # 130113-002, post amp at 20, rate is about 868 Hz, | |
| 6718 | Logic Unit in OR for Ni-57 sample # 130113-002, post amp at 50, rate is about 860 Hz, | |
| 6719 | Logic Unit in AND for Au-196 sample # 130113-003, post amp at 50, take a longer coin run to check if the 188 keV line for the 9.6 hour half life of Au is still measurable after 2 days compare to run 6689 which is mostly accidentals from coincidence mode, ~3 hrs 21 min | |
| 6720 | Logic Unit in AND for Y-88 sample # 130113-004, post amp at 50, 6 Hz | |
| 6721 | Logic Unit in AND for Y-88 sample # 130113-004, post amp at 20, 17 hrs 56 min 48 sec, some problem with the HpGe spectrum, the NaI looks fine | |
| 6722 | - | |
| runs 5703 to 6722 are not useful for coincidence, the delay inserted into the HpGe CFD would ocaisionally more the HpGe singal outside the ADC gate. | ||
| 6724 | Logic Unit in OR for Y-88 sample # 130113-004, post amp at 20, sec, I see peaks in the HpGe histogram, now look at timing | |
| 6724 | Logic Unit in OR for Y-88 sample # 130113-004, post amp at 20, sec, I see peaks in the HpGe histogram, now look at timing | |
| 6729 | Logic Unit in AND for Na-22 source # 129743, post amp at 20, rate is about 32 Hz changed output width of CFDs from 1000 ns to be about 500 nsec., HpGe discriminator at 50 mV and NaI at 30 mV | |
| 6730 | Logic Unit in OR for Ba-133 source # 129789, post amp at 20, rate is about 350 Hz . | |
| 6731 | Logic Unit in OR for Ba-133 source # 129789, post amp at 50, rate is about 1000 Hz ,HpGe discriminator at 10 mV and NaI at 10 mV. can see ~80 keV peak from Ba-133 | |
| 6732 | Logic Unit in OR for Ba-133 source # 129789, post amp at 50, rate is about 800 Hz ,HpGe discriminator at 20 mV and NaI at 20 mV. | |
| 6733 | Logic Unit in OR for Ba-133 source # 129789, post amp at 50, rate is about 900 Hz ,HpGe discriminator at 12 mV and NaI at 12 mV. | |
| 6734 | Logic Unit in OR for Mn-54 source # 129804, post amp at 50, rate is about 540 Hz ,HpGe discriminator at 12 mV and NaI at 12 mV. | |
| 6735 | Logic Unit in OR for Ni-57 sample # 130113-001, post amp at 50, rate is about 650 Hz ,HpGe discriminator at 12 mV and NaI at 12 mV. | |
| 6736 | Logic Unit in OR for Ni-57 sample # 130113-002, post amp at 50, rate is about 676 Hz ,HpGe discriminator at 12 mV and NaI at 12 mV. | |
| 6737 | Logic Unit in OR for Au-196 sample # 130113-003, post amp at 50, rate is about Hz ,HpGe discriminator at 12 mV and NaI at 12 mV. |
Somehow at delay switch was flipped up to the 1 usec position instead of the 0.1 usec position on the HpGe
Hazards of taking data in a common use environment I guess
I didn't notice it before because the HpGe output was barely making it into the gate
Improved coincidence setup
| Run | Description | |
| Logic Unit in AND for Na-22 sample # 130113-003, post amp at 20, rate is about 32 Hz changed output width of CFDs from 500 ns to be about 1 usec. |