Apparatus and methods used in a slow neutron resonance scattering experiment

H. Ceulemans; M. Néve de Mévergnies; F. Poortmans

doi:10.1016/0029-554X(62)90014-9

Apparatus and methods used in a slow neutron resonance scattering experiment

H. Ceulemans, M. Néve de Mévergnies, F. Poortmans

Research output › peer-review

Abstract

A slow-neutron crystal spectrometer and a scattering chamber for resonance scattering experiments are briefly described. The purpose of the experiment has been to measure Γ_n Γ by observing the scattering rate from a thin sample of known transmission. A method has been developed for correcting the observed rate for the effects of absorption after scattering and resolution broadening. In order to check the method, Γ_n Γ for the 1.46 eV resonance in In¹¹⁵ + n has been measured and a value of 0.041 ± 0.001 found. From this result a resonance spin J = 5 may be inferred when using available total cross section data. This spin value is in agreement with previous results obtained by different methods.

Original language	English
Pages (from-to)	342-352
Number of pages	11
Journal	Nuclear Instruments and Methods
Volume	17
Issue number	3
DOIs	https://doi.org/10.1016/0029-554X(62)90014-9
State	Published - Dec 1962

ASJC Scopus subject areas

General Medicine

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10.1016/0029-554X(62)90014-9

Cite this

@article{24c37dcf02814ce3ba4cdae6b273bd80,

title = "Apparatus and methods used in a slow neutron resonance scattering experiment",

abstract = "A slow-neutron crystal spectrometer and a scattering chamber for resonance scattering experiments are briefly described. The purpose of the experiment has been to measure Γn Γ by observing the scattering rate from a thin sample of known transmission. A method has been developed for correcting the observed rate for the effects of absorption after scattering and resolution broadening. In order to check the method, Γn Γ for the 1.46 eV resonance in In115 + n has been measured and a value of 0.041 ± 0.001 found. From this result a resonance spin J = 5 may be inferred when using available total cross section data. This spin value is in agreement with previous results obtained by different methods.",

author = "H. Ceulemans and {N{\'e}ve de M{\'e}vergnies}, M. and F. Poortmans",

year = "1962",

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doi = "10.1016/0029-554X(62)90014-9",

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volume = "17",

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journal = "Nuclear Instruments and Methods",

issn = "0029-554X",

publisher = "Elsevier B.V.",

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AU - Ceulemans, H.

AU - Néve de Mévergnies, M.

AU - Poortmans, F.

PY - 1962/12

Y1 - 1962/12

N2 - A slow-neutron crystal spectrometer and a scattering chamber for resonance scattering experiments are briefly described. The purpose of the experiment has been to measure Γn Γ by observing the scattering rate from a thin sample of known transmission. A method has been developed for correcting the observed rate for the effects of absorption after scattering and resolution broadening. In order to check the method, Γn Γ for the 1.46 eV resonance in In115 + n has been measured and a value of 0.041 ± 0.001 found. From this result a resonance spin J = 5 may be inferred when using available total cross section data. This spin value is in agreement with previous results obtained by different methods.

AB - A slow-neutron crystal spectrometer and a scattering chamber for resonance scattering experiments are briefly described. The purpose of the experiment has been to measure Γn Γ by observing the scattering rate from a thin sample of known transmission. A method has been developed for correcting the observed rate for the effects of absorption after scattering and resolution broadening. In order to check the method, Γn Γ for the 1.46 eV resonance in In115 + n has been measured and a value of 0.041 ± 0.001 found. From this result a resonance spin J = 5 may be inferred when using available total cross section data. This spin value is in agreement with previous results obtained by different methods.

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