| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
The temperature dependence of gamma-ray responses of YAG:Ce ceramic scintillators |
|
言語 |
en |
| 作成者 |
Takahashi, Hiromitsu
Yanagida, Takayuki
Kasama, Daisuke
Ito, Takeshi
Kokubun, Motohide
Makishima, Kazuo
Yanagitani, Takagimi
Yagi, Hideki
Shigeta, Takashi
Ito, Takashi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Ce3+ |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Ceramic |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Quenching |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Scintillators |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
emperature dependence |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Y3Al5O12 (YAG) |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
420 |
| 内容記述 |
|
|
内容記述 |
The temperature dependence (from -20 to +20 degrees C) of gamma-ray irradiated light outputs, energy resolutions, and decay time profiles of three YAG:Ce poly-ceramic scintillators are studied. The Ce concentrations are 0.5, 0.05, and 0.005 mol%.0 The relative light yield of the YAG:Ce with 0.5 mol% with a 2 μs shaping time was measured as 1 : 1.08 : 1.14 at +20, 0, and -20 degrees C, respectively, including the temperature dependence of the phototube (-0.2% /degree). The energy resolution stays almost constant at 7.2-1.984238or 662 keV gamma-rays. The ceramic with 0.05 mol??к_?ۿ?Sڟ?hows the almost same properties, while the light yield of that with 0.005 mol-1230736516s 2-4 times lower (hence the energy resolution becomes 14-19%). All the scintillators exhibit good linearities within ∼ 1 % between the light output and the irradiated gamma-ray energy from 59.5 keV to 662 keV. The decay time constants of the dominant decay components are about 80 ns and 300 ns at +20 degrees C. As the temperature increases from -20 to +20 degrees C, the effective decay of all the ceramics becomes faster, because the decay time constants and fractions of the slower components shorten and decrease, respectively. This result suggests that carriers which are captured in shallow traps before transferring excitation to Ce ions can escape the traps more easily at higher temperatures. Considering the decrease of the total light yield toward higher temperatures, it is thought that thermal quenching starts to dominate the temperature dependence of the ceramic YAG:Ce around the room temperature. The 0.5 mol?ڿ?R?@ʿ???S?cintillator shows a lower quenching energy than the 0.05 mol1001122502ne. This can be explained in terms of self absorption of Ce emission. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
IEEE |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1109/TNS.2006.878575 |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://dx.doi.org/10.1109/TNS.2006.878575 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0018-9499 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00667999 |
| 開始ページ |
|
|
開始ページ |
2404 |
| 書誌情報 |
IEEE Transactions on Nuclear Science
IEEE Transactions on Nuclear Science
巻 53,
号 4,
p. 2404-2408,
発行日 2006-08
|
| 旧ID |
15025 |
IEEETraNuc53_2404.pdf (747.6 KB)
