Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10715569 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2011 | 8 Pages |
Abstract
The neutron energy spectra change within 20%, depending on the para hydrogen concentrations. With increasing para hydrogen concentration, the pulse peak intensity increases and the pulse width becomes narrower. Furthermore, for a decoupled moderator, the pulse decay becomes faster with increasing para hydrogen concentration. From a viewpoint of the figure of merit (FOM=I/FWHM2) the para hydrogen moderator showed almost the same performance as that of the solid methane moderator, which is considered to be a high performance moderator for pulsed neutron source.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Motoki Ooi, Hirotatsu Ogawa, Takashi Kamiyama, Yoshiaki Kiyanagi,