Abstract
The high precision gamma-ray spectrometer (GRS) onboard the Japanese lunar explorer, SELENE (KAGUYA) consists of a large Ge crystal as the main detector and massive BGO and plastic scintillators as anticoincidence detectors. After a series of initial health checks, it started regular observation officially on December 21, 2007. Energy spectra of lunar gamma rays were obtained by GRS with very good energy resolution being 0.6% at 1.46MeV over the lunar surface. Many peaks of gamma rays from major elements and natural radioactive elements in the lunar surface have been observed. Individual gamma-ray lines emitted from the lunar surface have been identified. Here, we report the initial results obtained practically during the period from December 14, 2007 to February 17, 2008. Global maps of K and Th gamma-ray intensities are reported using count rates in several energy bands.
| Original language | English |
|---|---|
| Title of host publication | Advances in Geosciences: Volume 19: Planetary Science (PS) |
| Publisher | World Scientific Publishing Co. |
| Pages | 43-56 |
| Number of pages | 14 |
| ISBN (Electronic) | 9789812838162 |
| ISBN (Print) | 9812838155, 9789812838155 |
| DOIs | |
| Publication status | Published - 2010 Jan 1 |
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ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
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Distributions of K and Th on the moon : The initial results from observations by selene GRS. / Karouji, Yuzuru; Hasebe, Nobuyuki; Okudaira, Osamu; Yamashita, Naoyuki; Kobayashi, Shingo; Hareyama, Makoto; Miyachi, Takashi; Satoshi, Kodaira; Iwabuchi, Kazuya; Hayatsu, Kanako; Nemoto, Shinpei; Takeda, Yuko; Tsukada, Koichi; Nagaoka, Hiroshi; Kobayasi, Masanori; Shibamura, Eido; Ebihara, Mitsuru; Hihara, Takeshi; Arai, Tomoko; Sugihara, Takamitsu; Takeda, Hiroshi; D’Uston, Claude; Maurice, Sylvestre; Gasnault, Olivier; Forni, Olivier; Diez, Benedicte; Reedy, Robert C.; Kim, Kyeong J.; Takashima, Takeshi; Iijima, Yuichi; Otake, Hisashi.
Advances in Geosciences: Volume 19: Planetary Science (PS). World Scientific Publishing Co., 2010. p. 43-56.Research output: Chapter in Book/Report/Conference proceeding › Chapter
}
TY - CHAP
T1 - Distributions of K and Th on the moon
T2 - The initial results from observations by selene GRS
AU - Karouji, Yuzuru
AU - Hasebe, Nobuyuki
AU - Okudaira, Osamu
AU - Yamashita, Naoyuki
AU - Kobayashi, Shingo
AU - Hareyama, Makoto
AU - Miyachi, Takashi
AU - Satoshi, Kodaira
AU - Iwabuchi, Kazuya
AU - Hayatsu, Kanako
AU - Nemoto, Shinpei
AU - Takeda, Yuko
AU - Tsukada, Koichi
AU - Nagaoka, Hiroshi
AU - Kobayasi, Masanori
AU - Shibamura, Eido
AU - Ebihara, Mitsuru
AU - Hihara, Takeshi
AU - Arai, Tomoko
AU - Sugihara, Takamitsu
AU - Takeda, Hiroshi
AU - D’Uston, Claude
AU - Maurice, Sylvestre
AU - Gasnault, Olivier
AU - Forni, Olivier
AU - Diez, Benedicte
AU - Reedy, Robert C.
AU - Kim, Kyeong J.
AU - Takashima, Takeshi
AU - Iijima, Yuichi
AU - Otake, Hisashi
PY - 2010/1/1
Y1 - 2010/1/1
N2 - The high precision gamma-ray spectrometer (GRS) onboard the Japanese lunar explorer, SELENE (KAGUYA) consists of a large Ge crystal as the main detector and massive BGO and plastic scintillators as anticoincidence detectors. After a series of initial health checks, it started regular observation officially on December 21, 2007. Energy spectra of lunar gamma rays were obtained by GRS with very good energy resolution being 0.6% at 1.46MeV over the lunar surface. Many peaks of gamma rays from major elements and natural radioactive elements in the lunar surface have been observed. Individual gamma-ray lines emitted from the lunar surface have been identified. Here, we report the initial results obtained practically during the period from December 14, 2007 to February 17, 2008. Global maps of K and Th gamma-ray intensities are reported using count rates in several energy bands.
AB - The high precision gamma-ray spectrometer (GRS) onboard the Japanese lunar explorer, SELENE (KAGUYA) consists of a large Ge crystal as the main detector and massive BGO and plastic scintillators as anticoincidence detectors. After a series of initial health checks, it started regular observation officially on December 21, 2007. Energy spectra of lunar gamma rays were obtained by GRS with very good energy resolution being 0.6% at 1.46MeV over the lunar surface. Many peaks of gamma rays from major elements and natural radioactive elements in the lunar surface have been observed. Individual gamma-ray lines emitted from the lunar surface have been identified. Here, we report the initial results obtained practically during the period from December 14, 2007 to February 17, 2008. Global maps of K and Th gamma-ray intensities are reported using count rates in several energy bands.
UR - http://www.scopus.com/inward/record.url?scp=84971013153&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84971013153&partnerID=8YFLogxK
U2 - 10.1142/9789812838162_0004
DO - 10.1142/9789812838162_0004
M3 - Chapter
AN - SCOPUS:84971013153
SN - 9812838155
SN - 9789812838155
SP - 43
EP - 56
BT - Advances in Geosciences: Volume 19: Planetary Science (PS)
PB - World Scientific Publishing Co.
ER -