Characterisation of a neutron calibration facility at the SCK•CEN

F. Vanhavere; F. Vermeersch; P. Cuynen

doi:10.1117/12.267924

Characterisation of a neutron calibration facility at the SCK•CEN

Research output › peer-review

Abstract

The SCK•CEN provides a calibration service for neutron monitors using a ²⁵²Cf source located in a facility for nuclear calibrations. Since the determined calibration factor should not depend upon the irradiation facility, corrections are to be made for neutron scattering. There are generally three techniques to correct for the effects of scattered neutrons: the semi-empirical, the polynomial fit and the shadow cone technique. In the calibration facility of the SCK•CEN the source is located quite near a comer of the room, giving rise to a non-uniformity of the scattered component. This study was set up to investigate the effect of this non-uniformity on the validity of the three correction methods. A Studsvik 2202D neutron monitor was used for the experiments. The results were also compared with the results from a numerical modellisation of the neutron transport with the Tripoli-3D code.

Original language	English
Pages (from-to)	313-316
Number of pages	4
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2867
DOIs	https://doi.org/10.1117/12.267924
State	Published - 27 Feb 1996
Event	1996 - International Conference Neutrons in Research and Industry - Crete Duration: 9 Jun 1996 → 15 Jun 1996

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.267924

Cite this

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abstract = "The SCK•CEN provides a calibration service for neutron monitors using a 252Cf source located in a facility for nuclear calibrations. Since the determined calibration factor should not depend upon the irradiation facility, corrections are to be made for neutron scattering. There are generally three techniques to correct for the effects of scattered neutrons: the semi-empirical, the polynomial fit and the shadow cone technique. In the calibration facility of the SCK•CEN the source is located quite near a comer of the room, giving rise to a non-uniformity of the scattered component. This study was set up to investigate the effect of this non-uniformity on the validity of the three correction methods. A Studsvik 2202D neutron monitor was used for the experiments. The results were also compared with the results from a numerical modellisation of the neutron transport with the Tripoli-3D code.",

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AU - Cuynen, P.

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N2 - The SCK•CEN provides a calibration service for neutron monitors using a 252Cf source located in a facility for nuclear calibrations. Since the determined calibration factor should not depend upon the irradiation facility, corrections are to be made for neutron scattering. There are generally three techniques to correct for the effects of scattered neutrons: the semi-empirical, the polynomial fit and the shadow cone technique. In the calibration facility of the SCK•CEN the source is located quite near a comer of the room, giving rise to a non-uniformity of the scattered component. This study was set up to investigate the effect of this non-uniformity on the validity of the three correction methods. A Studsvik 2202D neutron monitor was used for the experiments. The results were also compared with the results from a numerical modellisation of the neutron transport with the Tripoli-3D code.

AB - The SCK•CEN provides a calibration service for neutron monitors using a 252Cf source located in a facility for nuclear calibrations. Since the determined calibration factor should not depend upon the irradiation facility, corrections are to be made for neutron scattering. There are generally three techniques to correct for the effects of scattered neutrons: the semi-empirical, the polynomial fit and the shadow cone technique. In the calibration facility of the SCK•CEN the source is located quite near a comer of the room, giving rise to a non-uniformity of the scattered component. This study was set up to investigate the effect of this non-uniformity on the validity of the three correction methods. A Studsvik 2202D neutron monitor was used for the experiments. The results were also compared with the results from a numerical modellisation of the neutron transport with the Tripoli-3D code.

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