Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources

F. Atchison; B. Blau; A. Bollhalder; M. Daum; P. Fierlinger; P. Geltenbort; G. Hampel; M. Kasprzak; K. Kirch; S. Köchli; B. Kuczewski; H. Leber; M. Locher; M. Meier; S. Ochse; A. Pichlmaier; C. Plonka; R. Reiser; J. Ulrich; X. Wang; N. Wiehl; O. Zimmer; G. Zsigmond

doi:10.1016/j.nima.2009.06.047

Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources

F. Atchison, B. Blau, A. Bollhalder, M. Daum, P. Fierlinger, P. Geltenbort, G. Hampel, M. Kasprzak, K. Kirch, S. Köchli, B. Kuczewski, H. Leber, M. Locher, M. Meier, S. Ochse, A. Pichlmaier, C. Plonka, R. Reiser, J. Ulrich, X. WangN. Wiehl, O. Zimmer, G. Zsigmond

Chair of Precision Measurements at Extreme Conditions

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13 Scopus citations

Abstract

At the Paul Scherrer Institute (PSI), a very intense source of ultracold neutrons (UCN) is being built. The UCN converter of solid deuterium must be contained in a vessel. Produced UCN leave that vessel through its top lid. To decide on the design of the vessel and the top lid, we have measured the transmission of neutrons with velocities between 3 and 20 m/s through different material foils. Contrary to expectations, we found that transmission through aluminium and aluminium alloys is equal or even higher compared to zirconium and reactor-grade zirconium alloys, respectively.

Original language	English
Pages (from-to)	144-151
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	608
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2009.06.047
State	Published - 1 Sep 2009

Keywords

Neutron sources
Ultracold neutron sources
Ultracold neutrons

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Atchison, F., Blau, B., Bollhalder, A., Daum, M., Fierlinger, P., Geltenbort, P., Hampel, G., Kasprzak, M., Kirch, K., Köchli, S., Kuczewski, B., Leber, H., Locher, M., Meier, M., Ochse, S., Pichlmaier, A., Plonka, C., Reiser, R., Ulrich, J., ... Zsigmond, G. (2009). Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 608(1), 144-151. https://doi.org/10.1016/j.nima.2009.06.047

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Atchison, F, Blau, B, Bollhalder, A, Daum, M, Fierlinger, P, Geltenbort, P, Hampel, G, Kasprzak, M, Kirch, K, Köchli, S, Kuczewski, B, Leber, H, Locher, M, Meier, M, Ochse, S, Pichlmaier, A, Plonka, C, Reiser, R, Ulrich, J, Wang, X, Wiehl, N, Zimmer, O & Zsigmond, G 2009, 'Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 608, no. 1, pp. 144-151. https://doi.org/10.1016/j.nima.2009.06.047

Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources. / Atchison, F.; Blau, B.; Bollhalder, A. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 608, No. 1, 01.09.2009, p. 144-151.

Research output: Contribution to journal › Article › peer-review

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T1 - Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources

AU - Atchison, F.

AU - Blau, B.

AU - Bollhalder, A.

AU - Daum, M.

AU - Fierlinger, P.

AU - Geltenbort, P.

AU - Hampel, G.

AU - Kasprzak, M.

AU - Kirch, K.

AU - Köchli, S.

AU - Kuczewski, B.

AU - Leber, H.

AU - Locher, M.

AU - Meier, M.

AU - Ochse, S.

AU - Pichlmaier, A.

AU - Plonka, C.

AU - Reiser, R.

AU - Ulrich, J.

AU - Wang, X.

AU - Wiehl, N.

AU - Zimmer, O.

AU - Zsigmond, G.

PY - 2009/9/1

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AB - At the Paul Scherrer Institute (PSI), a very intense source of ultracold neutrons (UCN) is being built. The UCN converter of solid deuterium must be contained in a vessel. Produced UCN leave that vessel through its top lid. To decide on the design of the vessel and the top lid, we have measured the transmission of neutrons with velocities between 3 and 20 m/s through different material foils. Contrary to expectations, we found that transmission through aluminium and aluminium alloys is equal or even higher compared to zirconium and reactor-grade zirconium alloys, respectively.

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KW - Ultracold neutron sources

KW - Ultracold neutrons

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JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1

ER -

Atchison F, Blau B, Bollhalder A, Daum M, Fierlinger P, Geltenbort P et al. Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2009 Sep 1;608(1):144-151. doi: 10.1016/j.nima.2009.06.047

Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources

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