A boron-coated ionization chamber for ultra-cold neutron detection

The design and performance of a boron-coated ionization chamber for the detection of ultra-cold neutrons (UCN) are presented. We detect UCN from the solid deuterium-based UCN source at the Los Alamos Neutron Science Center. Our results indicate comparable efficiency to 3He ionization chambers and pr...

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Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 691; pp. 109 - 112
Main Authors Salvat, D.J., Morris, C.L., Wang, Z., Adamek, E.R., Bacon, J., Hickerson, K.P., Hoagland, J., Holley, A.T., Liu, C.-Y., Makela, M., Ramsey, J., Reid, A., Rios, R., Saunders, A., Sjue, S.K.L., VornDick, B., Young, A.R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2012
Subjects
10B
3H replacement
Accelerators
Detectors
Ion chambers
Ionization chamber
Ionization chambers
Proportional counters
Spectra
Spectrometers
Thermal neutrons
Ultracold neutrons
Ionization chamber
Ultracold neutrons
10B
3H replacement
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Summary:The design and performance of a boron-coated ionization chamber for the detection of ultra-cold neutrons (UCN) are presented. We detect UCN from the solid deuterium-based UCN source at the Los Alamos Neutron Science Center. Our results indicate comparable efficiency to 3He ionization chambers and proportional counters currently used at the UCN source. In addition, the ion chamber is used to detect thermal neutrons; a comparison of the thermal neutron and UCN pulse-height spectra indicates that UCN mostly capture near the layer surface.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2012.06.041