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A High Count Rate Neutron Beam Monitor for Neutron Scattering Facilities

Publication Type
Conference Paper
Publication Date
Page Numbers
668 to 670
Volume
60
Issue
2
Publisher Location
New York, New Jersey, United States of America
Conference Name
SORMA: Symposium on Radiation Measurements and Applications
Conference Location
Oakland, California, United States of America
Conference Sponsor
IEEE
Conference Date
-

Abstract—Beam monitors are an important diagnostic tool in neutron science facilities. Present beam monitors use either ionization chambers in integration mode, which are slow and have no timing information, or pulse counters which can easily be saturated by high beam intensities. At high flux neutron scattering facilities, neutron beam monitors with very low intrinsic efficiency (10-5) are presently selected to keep the counting rate within a feasible range, even when a higher efficiency would improve the counting statistics and yield a better measurement of the incident beam. In this work, we report on a high count rate neutron beam monitor. This beam monitor offers good timing with an intrinsic efficiency of 10-3 and a counting rate capability of over 1,000,000 cps without saturation.