Neutron Time of Flight Test
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Determining Neutron Time of Flight
This test included one detector and a collimated Cf-252 source. The detector was placed 16 inches away from the source collimator. Tests were performed with various thicknesses of poly in between the two. Each count was 5 minutes long and three counts were taken for each test.
| setup | 1 block (4") | 2 blocks (8") | 3 blocks (12") | 4 blocks (16") | no blocks | background |
| test 1 counts | 7180 | 5142 | 3945 | 3235 | 11793 | 1620 |
| test 2 counts | 7291 | 5213 | 3994 | 3084 | 11694 | 1648 |
| test 3 counts | 7319 | 5205 | 4014 | 3150 | 11872 | 1629 |
| averages | 7263 | 5187 | 3984 | 3156 | 11786 | 1632 |