Difference between revisions of "PbBi Target Optimization"
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Revision as of 06:36, 5 December 2014
PbBi Target Thickness Optimization
10 MeV electrons incident on a thin layer of PbBi target. A detector is placed on the back of the target to detect positrons.
It was found that 2.0 mm thick PbBi yields highest e+/e- ratio of 9.8/10000.
Pb-Bi e+ Detected on the Positrons electrons
Target Back of Target Detected incident
Thickness Per e-
(mm)
0.1 1.52E-05 152 1.00E+07
0.2 5.49E-05 549 1.00E+07
0.3 1.04E-04 1041 1.00E+07
0.4 1.71E-04 1710 1.00E+07
0.5 2.40E-04 2399 1.00E+07
0.8 4.76E-04 4763 1.00E+07
1 6.35E-04 6348 1.00E+07
1.5 9.09E-04 9090 1.00E+07
1.7 9.58E-04 9584 1.00E+07
1.9 9.68E-04 9676 1.00E+07
1.95 9.71E-04 97075 1.00E+08
2 9.80E-04 97997 1.00E+08
2.05 9.72E-04 97153 1.00E+08
2.1 9.66E-04 96632 1.00E+08
2.3 9.60E-04 96020 1.00E+08
2 9.84E-04 9840 1.00E+07
2.05 9.38E-04 9380 1.00E+07
2.1 9.68E-04 9675 1.00E+07
2.3 9.75E-04 9746 1.00E+07
2.5 9.49E-04 9489 1.00E+07
3 9.00E-04 9002 1.00E+07
4 8.36E-04 8364 1.00E+07
6 7.00E-04 7003 1.00E+07
8 6.53E-04 6526 1.00E+07
10 5.58E-04 5578 1.00E+07
15 4.07E-04 4067 1.00E+07
20 3.03E-04 3033 1.00E+07
30 1.61E-04 1608 1.00E+07
50 1.45E-04 1447 1.00E+07
