A new method for measuring the neutron lifetime using an in situ neutron detector
In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements using bottled ultracold neutrons (UCN), which provides better characterization of systematic uncertainties and enables higher precision than previous measurement techniques. An active detector t...
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Published in: | Review of scientific instruments 2017-05, Vol.88 (5), p.053508-053508 |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Subjects: | |
Online Access: | Get full text |
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Summary: | In this paper, we describe a new method for measuring surviving neutrons in neutron lifetime measurements
using bottled ultracold neutrons (UCN), which provides better characterization of systematic
uncertainties
and enables higher precision than previous measurement techniques. An active detector
that can be lowered into the trap has been used to measure the
neutron
distribution as a function of height and measure the influence of marginally trapped
UCN on the neutron
lifetime measurement. In addition, measurements have demonstrated phase-space
evolution and its effect on the lifetime measurement. |
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ISSN: | 0034-6748 1089-7623 |