Difference between revisions of "PAA ResultsFromTheIAC"
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MPA->Draw("-3.12645+1.0003*evt.Chan>>(8000,0,8000)"); | MPA->Draw("-3.12645+1.0003*evt.Chan>>(8000,0,8000)"); | ||
| − | Scotch tape run was 6663.4 seconds long | + | Scotch tape run was 6663.4 seconds long (MPA->Draw("-3.12645+1.0003*evt.Chan>>NScotchTape(8000,0,8000)","0.00015");) |
| − | |||
| − | |||
| + | Kapton Tape run was 488.44 seconds long (MPA->Draw("-3.12645+1.0003*evt.Chan>>NKaptonTape(8000,0,8000)","0.0020473344");) | ||
| + | |||
| + | root [26] | ||
[[PAA_Research]] | [[PAA_Research]] | ||
Revision as of 23:43, 22 September 2016
Scotch Tape -vs- Kapton tape
A 20 MeV electron was used to make a bremsstrahlung beam that impinged a sample of regular Scotch Tape and Kapton tape. Both tapes had similar areas of 2.5 x 3 cm. The Kapton had twice as much mass as the Scotch (0.1247 g -vs 0.0699 g).
The scotch taper became brittle after 4 hours of irradiation on the 25 N machine.
Below is an uncalibrated spectrum using Thorium rods. Lines should appear at 238.8,338.8, 511, 583.4, 911.2, and 2614.6 keV
| Channel | Energy (keV) |
| 242 | 238.8 |
| 342 | 338.8 |
| 514 | 511 |
| 586 | 583 |
| 914 | 911.2 |
| 2617 | 2614.6 |
slope=1.0003 +/- 0.000156023 y-intercept=-3.12645 +/- 0.185346
MPA->Draw("-3.12645+1.0003*evt.Chan>>(8000,0,8000)");
Scotch tape run was 6663.4 seconds long (MPA->Draw("-3.12645+1.0003*evt.Chan>>NScotchTape(8000,0,8000)","0.00015");)
Kapton Tape run was 488.44 seconds long (MPA->Draw("-3.12645+1.0003*evt.Chan>>NKaptonTape(8000,0,8000)","0.0020473344");)
root [26]