Optimization of neutron shielding for the PICASSO experiment

S. Archambault; F. Aubin; M. Auger; E. Behnke; B. Beltran; B. Biskup; K. Clark; X. Dai; A. Davour; J. Farine; M. H. Genest; G. Giroux; R. Gornea; R. Faust; C. Krauss; I. Lawson; C. Leroy; C. Levy; L. Lessard; I. Levine; J. P. Martin; S. Kumaratunga; R. MacDonald; P. Nadeau; A. Noble; M. C. Piro; S. Pospisil; T. Shepherd; J. Sodomka; N. Starinski; I. Stekl; C. Storey; U. Wichoski; V. Zacek

doi:10.1063/1.3266086

Optimization of neutron shielding for the PICASSO experiment

S. Archambault, F. Aubin, M. Auger, E. Behnke, B. Beltran, B. Biskup, K. Clark, X. Dai, A. Davour, J. Farine, M. H. Genest, G. Giroux, R. Gornea, R. Faust, C. Krauss, I. Lawson, C. Leroy, C. Levy, L. Lessard, I. LevineJ. P. Martin, S. Kumaratunga, R. MacDonald, P. Nadeau, A. Noble, M. C. Piro, S. Pospisil, T. Shepherd, J. Sodomka, N. Starinski, I. Stekl, C. Storey, U. Wichoski, V. Zacek

Physics and Astronomy (Twin Cities)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

The PICASSO experiment searches WIMPs via their spin-dependent interactions with nuclei. At their operating temperatures, PICASSO threshold detectors are not sensitive to γ-rays, while it is necessary to suppress neutron and α-ray backgrounds. The different types of neutron shielding (water, polyethylene, borated water and polyethylene doped with different compounds of boron and lithium) were studied via the Monte Carlo method using MCNPX code. Efficiencies of these different types of neutron shielding were compared from the point of view of neutron suppression as well as number of newly born y-rays. The neutrons and γ-rays were followed up to the PICASSO detector active material. The most suitable neutron shielding for the PICASSO experiment was determined following these simulations.

Original language	English (US)
Title of host publication	Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09)
Pages	112-116
Number of pages	5
DOIs	https://doi.org/10.1063/1.3266086
State	Published - Dec 14 2009
Event	Workshop on Calculation of Double-Beta-Decay Matrix Elements, MEDEX '09 - Prague, Czech Republic Duration: Jun 15 2009 → Jun 19 2009

Publication series

Name	AIP Conference Proceedings
Volume	1180
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	Workshop on Calculation of Double-Beta-Decay Matrix Elements, MEDEX '09
Country	Czech Republic
City	Prague
Period	6/15/09 → 6/19/09

Keywords

Dark matter
MCNPX
Monte Carlo simulations
Neutralino
Neutron shielding

Access

10.1063/1.3266086

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Archambault, S., Aubin, F., Auger, M., Behnke, E., Beltran, B., Biskup, B., Clark, K., Dai, X., Davour, A., Farine, J., Genest, M. H., Giroux, G., Gornea, R., Faust, R., Krauss, C., Lawson, I., Leroy, C., Levy, C., Lessard, L., ... Zacek, V. (2009). Optimization of neutron shielding for the PICASSO experiment. In Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09) (pp. 112-116). (AIP Conference Proceedings; Vol. 1180). https://doi.org/10.1063/1.3266086

Optimization of neutron shielding for the PICASSO experiment. / Archambault, S.; Aubin, F.; Auger, M.; Behnke, E.; Beltran, B.; Biskup, B.; Clark, K.; Dai, X.; Davour, A.; Farine, J.; Genest, M. H.; Giroux, G.; Gornea, R.; Faust, R.; Krauss, C.; Lawson, I.; Leroy, C.; Levy, C.; Lessard, L.; Levine, I.; Martin, J. P.; Kumaratunga, S.; MacDonald, R.; Nadeau, P.; Noble, A.; Piro, M. C.; Pospisil, S.; Shepherd, T.; Sodomka, J.; Starinski, N.; Stekl, I.; Storey, C.; Wichoski, U.; Zacek, V.

Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09). 2009. p. 112-116 (AIP Conference Proceedings; Vol. 1180).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Archambault, S, Aubin, F, Auger, M, Behnke, E, Beltran, B, Biskup, B, Clark, K, Dai, X, Davour, A, Farine, J, Genest, MH, Giroux, G, Gornea, R, Faust, R, Krauss, C, Lawson, I, Leroy, C, Levy, C, Lessard, L, Levine, I, Martin, JP, Kumaratunga, S, MacDonald, R, Nadeau, P, Noble, A, Piro, MC, Pospisil, S, Shepherd, T, Sodomka, J, Starinski, N, Stekl, I, Storey, C, Wichoski, U & Zacek, V 2009, Optimization of neutron shielding for the PICASSO experiment. in Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09). AIP Conference Proceedings, vol. 1180, pp. 112-116, Workshop on Calculation of Double-Beta-Decay Matrix Elements, MEDEX '09, Prague, Czech Republic, 6/15/09. https://doi.org/10.1063/1.3266086

Archambault, S. ; Aubin, F. ; Auger, M. ; Behnke, E. ; Beltran, B. ; Biskup, B. ; Clark, K. ; Dai, X. ; Davour, A. ; Farine, J. ; Genest, M. H. ; Giroux, G. ; Gornea, R. ; Faust, R. ; Krauss, C. ; Lawson, I. ; Leroy, C. ; Levy, C. ; Lessard, L. ; Levine, I. ; Martin, J. P. ; Kumaratunga, S. ; MacDonald, R. ; Nadeau, P. ; Noble, A. ; Piro, M. C. ; Pospisil, S. ; Shepherd, T. ; Sodomka, J. ; Starinski, N. ; Stekl, I. ; Storey, C. ; Wichoski, U. ; Zacek, V. / Optimization of neutron shielding for the PICASSO experiment. Workshop on Calculation of Double-Beta-Decay Matrix Elements (MEDEX '09). 2009. pp. 112-116 (AIP Conference Proceedings).

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abstract = "The PICASSO experiment searches WIMPs via their spin-dependent interactions with nuclei. At their operating temperatures, PICASSO threshold detectors are not sensitive to γ-rays, while it is necessary to suppress neutron and α-ray backgrounds. The different types of neutron shielding (water, polyethylene, borated water and polyethylene doped with different compounds of boron and lithium) were studied via the Monte Carlo method using MCNPX code. Efficiencies of these different types of neutron shielding were compared from the point of view of neutron suppression as well as number of newly born y-rays. The neutrons and γ-rays were followed up to the PICASSO detector active material. The most suitable neutron shielding for the PICASSO experiment was determined following these simulations.",

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AU - Archambault, S.

AU - Aubin, F.

AU - Auger, M.

AU - Behnke, E.

AU - Beltran, B.

AU - Biskup, B.

AU - Clark, K.

AU - Dai, X.

AU - Davour, A.

AU - Farine, J.

AU - Genest, M. H.

AU - Giroux, G.

AU - Gornea, R.

AU - Faust, R.

AU - Krauss, C.

AU - Lawson, I.

AU - Leroy, C.

AU - Levy, C.

AU - Lessard, L.

AU - Levine, I.

AU - Martin, J. P.

AU - Kumaratunga, S.

AU - MacDonald, R.

AU - Nadeau, P.

AU - Noble, A.

AU - Piro, M. C.

AU - Pospisil, S.

AU - Shepherd, T.

AU - Sodomka, J.

AU - Starinski, N.

AU - Stekl, I.

AU - Storey, C.

AU - Wichoski, U.

AU - Zacek, V.

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N2 - The PICASSO experiment searches WIMPs via their spin-dependent interactions with nuclei. At their operating temperatures, PICASSO threshold detectors are not sensitive to γ-rays, while it is necessary to suppress neutron and α-ray backgrounds. The different types of neutron shielding (water, polyethylene, borated water and polyethylene doped with different compounds of boron and lithium) were studied via the Monte Carlo method using MCNPX code. Efficiencies of these different types of neutron shielding were compared from the point of view of neutron suppression as well as number of newly born y-rays. The neutrons and γ-rays were followed up to the PICASSO detector active material. The most suitable neutron shielding for the PICASSO experiment was determined following these simulations.

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KW - Monte Carlo simulations

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