Difference between revisions of "NAA SolarPanel"
| Line 141: | Line 141: | ||
[[File:PHYSRevL60_2246.pdf]] | [[File:PHYSRevL60_2246.pdf]] | ||
| − | {| border="1" |cellpadding="20" cellspacing="0 | + | {| border="1" |cellpadding="20" cellspacing="0 |
| − | | | + | |Min Energy (keV) ||Max Energy (keV) || Cross Section (mb) |
|- | |- | ||
| − | | | + | | 3|| 6|| 81.3 |
|- | |- | ||
| − | | | + | |6|| 9|| 186.6 |
|- | |- | ||
| + | |9|| 12|| 67.1 | ||
| + | |- | ||
| + | |12|| 15|| 27.7 | ||
| + | |- | ||
| + | |15|| 20|| 43.6 | ||
| + | |- | ||
| + | |20|| 30|| 44.6 | ||
| + | |- | ||
| + | |30|| 40|| 44.7 | ||
| + | |- | ||
| + | |40|| 50|| 28.2 | ||
| + | |- | ||
| + | |50 ||60|| 26.0 | ||
| + | |- | ||
| + | |60|| 80|| 21.5 | ||
| + | |- | ||
| + | |80|| 100|| 16.3 | ||
| + | |- | ||
| + | |100|| 120|| 14.3 | ||
| + | |- | ||
| + | |120|| 140|| 15.2 | ||
| + | |- | ||
| + | |140|| 160|| 8.3 | ||
| + | |- | ||
| + | |160|| 180|| 8.6 | ||
| + | |- | ||
| + | |180|| 200|| 8.3 | ||
| + | |- | ||
| + | |200|| 220|| 6.5 | ||
| + | |- | ||
| + | |220|| 240|| 6.3 | ||
| + | |- | ||
| + | |240 ||260|| 5.6 | ||
| + | |- | ||
| + | |260|| 280|| 5.6 | ||
| + | |||
| + | |- | ||
| + | |280|| 300|| 6.6 | ||
| + | |- | ||
| + | |300|| 320|| 5.8 | ||
| + | |- | ||
| + | |320|| 340|| 5.7 | ||
| + | |- | ||
| + | |340|| 360|| 5.8 | ||
| + | |- | ||
| + | |360|| 380|| 4.3 | ||
| + | |- | ||
| + | |380|| 400|| 5.1 | ||
| + | |- | ||
| + | |400|| 420|| 5.9 | ||
| + | |- | ||
| + | |420|| 440|| 5.0 | ||
| + | |- | ||
| + | |440|| 460|| 5.6 | ||
| + | |- | ||
| + | |460|| 480|| 5.6 | ||
| + | |- | ||
| + | |480|| 500|| 4.6 | ||
| + | |- | ||
| + | |500|| 550|| 4.2 | ||
| + | |- | ||
| + | |550|| 600|| 4.8 | ||
| + | |- | ||
| + | |600|| 650|| 3.8 | ||
| + | |- | ||
| + | |650 ||700|| 4.3 | ||
|} | |} | ||
| − | |||
[[PAA_Research]] | [[PAA_Research]] | ||
Revision as of 00:04, 16 June 2018
SOlarPanel A Irradiation on Jack
Irradiated on Jack by placing samples just above the Radiator as shown in the picture.
Beam parameters: Irradiation Date : 5/23/18
Start Time: 09:07:30
Stop Time: 11:07:30
Rep Rate=300 Hz
I = 98 mA
Pulse Width = 10 usec
E = 38 MeV
The solar panel current output dropped 1 mA per hour during irradiation. The cove was too dark to produce a signal from ambient light. The observed signal was completely due to the electron beam.
In File name:10uC_Cs_Mn_SolarPan_DetD_55.5cm_002.lst
Measurements started at 14:45:38, 2:38:08 (158 min, 9488 sec) after irradiation ended,
Add 9488 seconds to time below to get time since irradiation
| Time (sec) | Sample |
| 0 | Cs-137 (661 keV line) #64121 55.5 cm away from face |
| 360 | Mn sample (1.7 g, 1.5 cm x 1.5 cm square, 847 keV) 55.5 cm away from face |
| 690 | Thorium Rods on face of detector |
| 1020 | Solar Panel A 55.5 cm away from face |
| 1410 | Cs-137 #129792 55.5 cm away from face |
| 1820 | Mn sample (847 keV) 55.5 cm away from face |
| 2230 | Cs-137 #129792 55.5 cm away from face (0.54% deadtime) |
| 2560 | Solar Panel A 55.5 cm away from face (0.55% deadtime, 300 Hz DAQ rate) |
| 2880 | Cs-137 (661 keV line) #64121 55.5 cm away from face (1.1% deadtime, 350 Hz) |
| 3070 | Mn sample (847 keV) 55.5 cm away from face (13 % deadtime, 4600 Hz) |
| 3330 | Ignore (Mn source was too close) Cs-137 #129792 15 cm away from face(6 % deadtime, 2000 Hz) |
| 3600 | Cs-137 #129792 15 cm away from face(.5 % deadtime, 200 Hz) |
| 4000 | Solar Panel A 15 cm away from face (2 % deadtime, 880 Hz DAQ rate) |
Check out Solar panel channels
root [24] MPA->Draw("evt.Chan>>(496,0,496)","evt.Sec> 2560 && evt.Sec<2800 && evt.Chan >306 && evt.Chan < 311");
root [25] MPA->Draw("evt.Chan>>(496,0,496)","evt.Sec> 1020 && evt.Sec<1260 && evt.Chan >306 && evt.Chan < 311");
Calibration
| Source | Energy (keV0 | Channel |
| Th Rod | 238.8 (highest peak) | 487.2 +/- 1.1 |
| Th Rod | 338.8 (4th highest) | 690.4 +/- 1.3 |
| Th Rod | 511 | |
| Th Rod | 583.4 (2nd highest peak) | 1189.6 + / 1.2 |
| Cs-137 | 661.7 | 1350 |
| Th Rod | 911.2 (3rd highest) | 1858.3 +/- 1.4 |
| Th Rod | 2614.6 | 5331.0 +/- 2.2 |
Energy (keV) = (0.065 +/- 1.34) + Channel*(0.490287 +/- 0.001174)
MPA->Draw("evt.Chan*(0.490) >>(6096,0,6096)","evt.Sec > 690 && evt.Sec < 1000");
Solar Panel Lines of interest
491, 528, 552.5, 847 , 1097 , 1293, 1303, 1810, 1997
In File name:10uC_Cs_Mn_SolarPan_DetD_55.5cm_003.lst
The measurement below started at 16:24:09, 4:16:39 after irradiation ended
Add 15399 seconds to time below to get time since irradiation
| Time (sec) | Sample |
| 0 | Thorium Rods on face of detector (2% deadtime, 750 Hz) |
| 350 | Mn sample (847 keV) 55.5 cm away from face (12% deadtime, 3800 Hz) |
Ended measurements at (9:34 am Thursday, 5/24/18)
Reference for Mn half life of 2.5785 hrs
https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.60.2246
Rate Estimates
Mass of Sample = 1.6992 g
Neutron capture cross section for manganese
https://journals.aps.org/prc/pdf/10.1103/PhysRevC.18.2079
Misnamed article below
| Min Energy (keV) | Max Energy (keV) | Cross Section (mb) |
| 3 | 6 | 81.3 |
| 6 | 9 | 186.6 |
| 9 | 12 | 67.1 |
| 12 | 15 | 27.7 |
| 15 | 20 | 43.6 |
| 20 | 30 | 44.6 |
| 30 | 40 | 44.7 |
| 40 | 50 | 28.2 |
| 50 | 60 | 26.0 |
| 60 | 80 | 21.5 |
| 80 | 100 | 16.3 |
| 100 | 120 | 14.3 |
| 120 | 140 | 15.2 |
| 140 | 160 | 8.3 |
| 160 | 180 | 8.6 |
| 180 | 200 | 8.3 |
| 200 | 220 | 6.5 |
| 220 | 240 | 6.3 |
| 240 | 260 | 5.6 |
| 260 | 280 | 5.6 |
| 280 | 300 | 6.6 |
| 300 | 320 | 5.8 |
| 320 | 340 | 5.7 |
| 340 | 360 | 5.8 |
| 360 | 380 | 4.3 |
| 380 | 400 | 5.1 |
| 400 | 420 | 5.9 |
| 420 | 440 | 5.0 |
| 440 | 460 | 5.6 |
| 460 | 480 | 5.6 |
| 480 | 500 | 4.6 |
| 500 | 550 | 4.2 |
| 550 | 600 | 4.8 |
| 600 | 650 | 3.8 |
| 650 | 700 | 4.3 |