The high precision gamma-ray spectrometer for lunar polar orbiter SELENE

N. Hasebe; N. Yamashita; O. Okudaira; S. Kobayashi; H. Yamamoto; T. Ishizaki; K. Hirano; K. Sakurai; T. Miyachi; M. Miyajima; M. Fujii; M. N. Kobayashi; T. Takashima; E. Shibamura; O. Gasnault; S. Maurice; C. d'Uston; R. Reedy; M. Grande

doi:10.1016/j.asr.2007.05.046

The high precision gamma-ray spectrometer for lunar polar orbiter SELENE

N. Hasebe, N. Yamashita, O. Okudaira, S. Kobayashi, H. Yamamoto, T. Ishizaki, K. Hirano, K. Sakurai, T. Miyachi, M. Miyajima, M. Fujii, M. N. Kobayashi, T. Takashima, E. Shibamura, O. Gasnault, S. Maurice, C. d'Uston, R. Reedy, M. Grande

Department of Physics

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Abstract

The high precision gamma-ray spectrometer (GRS) is scheduled to be launched on the lunar polar orbiter of the SELENE mission in 2007. The GRS consists of a large Ge crystal as a main detector and massive bismuth germanate crystals as an anticoincidence detector. A Stirling cryocooler was adopted in cooling the Ge detector. The flight model of SELENE GRS has been completed and an energy resolution of 3.0 keV (FWHM) at 1.332 MeV has been achieved. The spectrometer aims to observe nuclear line gamma rays emitted from the lunar surface in a wide energy range from 100 keV to 12 MeV for one year and more to obtain chemical composition on the entire lunar surface. The gamma-ray data enable us to study lunar geoscience problems including crust and mantle composition, and volatile reservoirs at polar regions.

Original language	English
Pages (from-to)	323-330
Number of pages	8
Journal	Advances in Space Research
Volume	42
Issue number	2
Early online date	24 May 2007
DOIs	https://doi.org/10.1016/j.asr.2007.05.046
Publication status	Published - 18 Jul 2008

Keywords

Gamma-ray
Moon
Planetary spectroscopy
Ge detector
Stirling cooler
SELENE
GRS
Chemical composition

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Hasebe, N., Yamashita, N., Okudaira, O., Kobayashi, S., Yamamoto, H., Ishizaki, T., Hirano, K., Sakurai, K., Miyachi, T., Miyajima, M., Fujii, M., Kobayashi, M. N., Takashima, T., Shibamura, E., Gasnault, O., Maurice, S., d'Uston, C., Reedy, R., & Grande, M. (2008). The high precision gamma-ray spectrometer for lunar polar orbiter SELENE. Advances in Space Research, 42(2), 323-330. https://doi.org/10.1016/j.asr.2007.05.046

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title = "The high precision gamma-ray spectrometer for lunar polar orbiter SELENE",

abstract = "The high precision gamma-ray spectrometer (GRS) is scheduled to be launched on the lunar polar orbiter of the SELENE mission in 2007. The GRS consists of a large Ge crystal as a main detector and massive bismuth germanate crystals as an anticoincidence detector. A Stirling cryocooler was adopted in cooling the Ge detector. The flight model of SELENE GRS has been completed and an energy resolution of 3.0 keV (FWHM) at 1.332 MeV has been achieved. The spectrometer aims to observe nuclear line gamma rays emitted from the lunar surface in a wide energy range from 100 keV to 12 MeV for one year and more to obtain chemical composition on the entire lunar surface. The gamma-ray data enable us to study lunar geoscience problems including crust and mantle composition, and volatile reservoirs at polar regions.",

keywords = "Gamma-ray, Moon, Planetary spectroscopy, Ge detector, Stirling cooler, SELENE, GRS, Chemical composition",

author = "N. Hasebe and N. Yamashita and O. Okudaira and S. Kobayashi and H. Yamamoto and T. Ishizaki and K. Hirano and K. Sakurai and T. Miyachi and M. Miyajima and M. Fujii and Kobayashi, {M. N.} and T. Takashima and E. Shibamura and O. Gasnault and S. Maurice and C. d'Uston and R. Reedy and M. Grande",

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doi = "10.1016/j.asr.2007.05.046",

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Hasebe, N, Yamashita, N, Okudaira, O, Kobayashi, S, Yamamoto, H, Ishizaki, T, Hirano, K, Sakurai, K, Miyachi, T, Miyajima, M, Fujii, M, Kobayashi, MN, Takashima, T, Shibamura, E, Gasnault, O, Maurice, S, d'Uston, C, Reedy, R & Grande, M 2008, 'The high precision gamma-ray spectrometer for lunar polar orbiter SELENE', Advances in Space Research, vol. 42, no. 2, pp. 323-330. https://doi.org/10.1016/j.asr.2007.05.046

TY - JOUR

T1 - The high precision gamma-ray spectrometer for lunar polar orbiter SELENE

AU - Hasebe, N.

AU - Yamashita, N.

AU - Okudaira, O.

AU - Kobayashi, S.

AU - Yamamoto, H.

AU - Ishizaki, T.

AU - Hirano, K.

AU - Sakurai, K.

AU - Miyachi, T.

AU - Miyajima, M.

AU - Fujii, M.

AU - Kobayashi, M. N.

AU - Takashima, T.

AU - Shibamura, E.

AU - Gasnault, O.

AU - Maurice, S.

AU - d'Uston, C.

AU - Reedy, R.

AU - Grande, M.

PY - 2008/7/18

Y1 - 2008/7/18

N2 - The high precision gamma-ray spectrometer (GRS) is scheduled to be launched on the lunar polar orbiter of the SELENE mission in 2007. The GRS consists of a large Ge crystal as a main detector and massive bismuth germanate crystals as an anticoincidence detector. A Stirling cryocooler was adopted in cooling the Ge detector. The flight model of SELENE GRS has been completed and an energy resolution of 3.0 keV (FWHM) at 1.332 MeV has been achieved. The spectrometer aims to observe nuclear line gamma rays emitted from the lunar surface in a wide energy range from 100 keV to 12 MeV for one year and more to obtain chemical composition on the entire lunar surface. The gamma-ray data enable us to study lunar geoscience problems including crust and mantle composition, and volatile reservoirs at polar regions.

AB - The high precision gamma-ray spectrometer (GRS) is scheduled to be launched on the lunar polar orbiter of the SELENE mission in 2007. The GRS consists of a large Ge crystal as a main detector and massive bismuth germanate crystals as an anticoincidence detector. A Stirling cryocooler was adopted in cooling the Ge detector. The flight model of SELENE GRS has been completed and an energy resolution of 3.0 keV (FWHM) at 1.332 MeV has been achieved. The spectrometer aims to observe nuclear line gamma rays emitted from the lunar surface in a wide energy range from 100 keV to 12 MeV for one year and more to obtain chemical composition on the entire lunar surface. The gamma-ray data enable us to study lunar geoscience problems including crust and mantle composition, and volatile reservoirs at polar regions.

KW - Gamma-ray

KW - Moon

KW - Planetary spectroscopy

KW - Ge detector

KW - Stirling cooler

KW - SELENE

KW - GRS

KW - Chemical composition

UR - http://hdl.handle.net/2160/8398

U2 - 10.1016/j.asr.2007.05.046

DO - 10.1016/j.asr.2007.05.046

M3 - Article

SN - 0273-1177

VL - 42

SP - 323

EP - 330

JO - Advances in Space Research

JF - Advances in Space Research

IS - 2

ER -

The high precision gamma-ray spectrometer for lunar polar orbiter SELENE

Abstract

Keywords

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