BO-08-22-13
Ba reactions
naturally occurring Isotope and their abundance
Ba-133 Calibration source
Analysis of lines and coincidences
Single neutron knockout
Ba-137 -> Ba-136* -> Ba-136 + gamma
Below is a table of the photon energy and relative intensities that are given off as Ba-136 de-excites back to the ground state.
| Energy(keV) | Intensity(rel) |
| 163.920 2 | 31.25 % |
| 315.5 5 | 0.024 % |
| 732.46 2 | 0.012 % |
| 818.514 12 | 99.585 % |
| 1048.073 20 | 99.819 % |
| 1550.96 2 | 0.013 % |
Gamma Coincidence Data:
For each gamma, the list of gammas in coincidence is given. If experimentally known, an estimate of the average time interval (in seconds) between both gammas is given
163.920 315.5, 732.46 (1.01E-12), 818.514 (2.94E-12), 1048.073, 1550.96 (1.01E-12) 315.5 163.920, 732.46 (1.01E-12), 818.514 (2.94E-12), 1550.96 (1.01E-12) 732.46 163.920 (1.01E-12), 315.5 (1.01E-12), 818.514 (1.93E-12) 818.514 163.920 (2.94E-12), 315.5 (2.94E-12), 732.46 (1.93E-12), 1048.073 (1.93E-12) 1048.073 163.920, 818.514 (1.93E-12) 1550.96 163.920 (1.01E-12), 315.5 (1.01E-12)
Neutron Separation Energy= Energy needed to liberate a neutron from the Nucleus
- =
Single proton knockout
Cs-136
1.2 MeV
Intense lines
Coincidences
1048 line
1048.073 66.881 (1.60E-9), 86.36, 109.681, 153.246, 163.920, 166.576 (4.71E-9), 176.602, 187.285, 233.5 (1.60E-9), 273.646, 302.4, 319.911, 340.547, 490.0, 507.188, 818.514
Run List
Irradiation date was on
8/22/13 3:00 pm
| Run | Time since Irradiation (Sec) | Description | |
| 5716 | Coincidences for Ba-133 10 uCi source. The CFD widths were 10 nsec making the coincidence window 20 nsec. running time 7 hrs , 33 min, 14sec. Rate was 1 Hz | ||
| 5718 | Logic Unit in OR mode for Ba-133 10 uCi source. The CFD widths were 10 nsec making the coincidence window 20 nsec. running time 2 min, 5 sec. Rate was 4 kHz  r5718-5716_Ba133Analysis
| ||
| PAA_run_5792 | Ba-133 source, TDC not getting hits ntuple->Draw("(ADC5-59.1813)/2.84727>>(4096,0,4096) ") | ||
| 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 | ||
| 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 | ||
| 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, | ||
| PAA_run_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, | ||
| 5902 | Ba-132 + Al rod 130100-012, only counting with detector 180-3 9 min 56sec long, 191 Hz | ||
| 5908 | Ba-133 0.1 uCi source # 129789 , Using both detectors in OR mode | ||
| PAA_run_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, ntuple->Draw("(ADC5-70.23597)/2.74588>>(4096,0,4096) ") | ||
| 5910 | Ba-132 + Al rod 130100-012, Using both detectors in OR mode, 33 min 5 sec long, Hz | ||
| PAA_run_5912 | Ba-133 0.1 uCi source # 129789 , Using both detectors OR mode , 4 min 21 sec long, 809 Hz, ntuple->Draw("(ADC5-70.2881)/2.4783>>(4096,0,4096) ") , ntuple->Draw("(ADC9-47.29187)/2.61117 >> (4096,0,4096) ") | ||
| 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, min sec long, Hz |