Thermal neutron time-of-flight spectroscopy at Penn State using a single-disk chopper

J. Niederhaus, J. Brenizer, Kenan Unlu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A single-disk, "slow" chopper system has been developed at the Penn State University Radiation Science and Engineering Center (RSEC) for the purpose of energy spectrum measurements on thermal neutron beams (E < 1 eV). The primary beam at PSU RSEC was gated with a single-disk neutron chopper, and the distribution in neutron time-of-flight (TOF) across a known distance was recorded. A procedure was defined whereby the recorded TOF distribution was corrected for various experimental conditions and transformed to yield the velocity and energy spectrum of neutrons in the beam. These data were compared to distributions derived from models based on the Maxwell-Boltzmann distribution. This comparison facilitated characterization of the beam and evaluation of the instrument's usefulness and accuracy in spectroscopic measurements.

Original languageEnglish (US)
Title of host publicationProceedings of the PHYSOR 2004
Subtitle of host publicationThe Physics of Fuel Cycles and Advanced Nuclear Systems - Global Developments
Pages2057-2066
Number of pages10
StatePublished - Dec 1 2004
EventPHYSOR 2004: The Physics of Fuel Cycles and Advanced Nuclear Systems - Global Developments - Chicago, IL, United States
Duration: Apr 25 2004Apr 29 2004

Publication series

NameProceedings of the PHYSOR 2004: The Physics of Fuel Cycles and Advanced Nuclear Systems - Global Developments

Other

OtherPHYSOR 2004: The Physics of Fuel Cycles and Advanced Nuclear Systems - Global Developments
CountryUnited States
CityChicago, IL
Period4/25/044/29/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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