JP4528547B2 - 半導体放射線検出器の劣化異常検出装置 - Google Patents
半導体放射線検出器の劣化異常検出装置 Download PDFInfo
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- JP4528547B2 JP4528547B2 JP2004097572A JP2004097572A JP4528547B2 JP 4528547 B2 JP4528547 B2 JP 4528547B2 JP 2004097572 A JP2004097572 A JP 2004097572A JP 2004097572 A JP2004097572 A JP 2004097572A JP 4528547 B2 JP4528547 B2 JP 4528547B2
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- 230000005856 abnormality Effects 0.000 title claims description 46
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- 238000005259 measurement Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000001678 irradiating effect Effects 0.000 description 4
- 229910004613 CdTe Inorganic materials 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
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Claims (2)
- 半導体放射線検出器に電磁波パルスを入力する発振器と、前記半導体放射線検出器のバイアス電圧が異常となったことを検出するバイアス電圧異常検出手段と、前記半導体放射線検出器の検出信号を増幅する増幅器への供給電源電圧が異常となったことを検出する供給電源異常検出手段と、前記発振器から電磁波パルスが照射されたことにより前記半導体放射線検出器から出力されるパルス波高値の波高分布を取得する波高弁別部と、前記バイアス電圧及び前記供給電源電圧が正常で前記波高弁別部からの波高分布が正常範囲を逸脱している場合に、正常な波高分布の標準偏差と正常範囲から逸脱した波高分布の標準偏差との変化量と、波高分布の標準偏差と平均値との温度特性とを用いて、正常範囲から逸脱した前記波高分布を補正し、補正した前記波高分布が所定範囲を逸脱しているときは前記半導体放射線検出器の半導体結晶の劣化または異常であると判別する波高分布分析手段とを備えたことを特徴とする半導体放射線検出器の劣化異常検出装置。
- 半導体放射線検出器に電磁波パルスを入力する発振器と、前記半導体放射線検出器のリーク電流を検出する電流検出器と、前記半導体放射線検出器のバイアス電圧が異常となったことを検出するバイアス電圧異常検出手段と、前記半導体放射線検出器の検出信号を増幅する増幅器への供給電源電圧が異常となったことを検出する供給電源異常検出手段と、前記発振器から電磁波パルスが照射されたことにより前記半導体放射線検出器から出力されるパルス波高値の波高分布を取得する波高弁別部と、前記バイアス電圧及び前記供給電源電圧が正常で前記波高弁別部からの波高分布が正常範囲を逸脱している場合に、前記電流検出器で検出されたリーク電流と温度との関係と、正常な波高分布の平均値の温度特性とを用いて正常範囲から逸脱した前記波高分布を補正し、補正した前記波高分布が所定範囲を逸脱しているときは前記半導体放射線検出器の半導体結晶の劣化または異常であると判別する波高分布分析手段とを備えたことを特徴とする半導体放射線検出器の劣化異常検出装置。
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JP2004097572A JP4528547B2 (ja) | 2004-03-30 | 2004-03-30 | 半導体放射線検出器の劣化異常検出装置 |
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JP2004097572A JP4528547B2 (ja) | 2004-03-30 | 2004-03-30 | 半導体放射線検出器の劣化異常検出装置 |
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JP2005283327A JP2005283327A (ja) | 2005-10-13 |
JP4528547B2 true JP4528547B2 (ja) | 2010-08-18 |
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JP2004097572A Expired - Fee Related JP4528547B2 (ja) | 2004-03-30 | 2004-03-30 | 半導体放射線検出器の劣化異常検出装置 |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4972056B2 (ja) * | 2008-08-18 | 2012-07-11 | 日立アロカメディカル株式会社 | 放射線測定装置 |
JP5089568B2 (ja) * | 2008-12-22 | 2012-12-05 | 三菱電機株式会社 | 放射性ガスモニタ |
JP5588238B2 (ja) * | 2009-11-30 | 2014-09-10 | 株式会社東芝 | 半導体放射線検出器 |
CN111436218B (zh) * | 2017-11-13 | 2023-06-06 | 圣戈本陶瓷及塑料股份有限公司 | 包括基于半导体的光电倍增管的装置及稳定增益的方法 |
JP7021989B2 (ja) * | 2018-03-16 | 2022-02-17 | 住友重機械工業株式会社 | 中性子捕捉療法システム、及び中性子線検出装置 |
JP7168531B2 (ja) * | 2019-08-28 | 2022-11-09 | 日立Geニュークリア・エナジー株式会社 | 放射線監視装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245177A (ja) * | 1986-04-17 | 1987-10-26 | Yokogawa Electric Corp | 半導体放射線検出器 |
JPH02128184A (ja) * | 1988-11-09 | 1990-05-16 | Fuji Electric Co Ltd | 半導体式放射線検出器のバイアス異常検出装置 |
JPH04168395A (ja) * | 1990-10-31 | 1992-06-16 | Toshiba Corp | 放射線モニタ装置 |
JP2002277556A (ja) * | 2001-02-22 | 2002-09-25 | Koninkl Philips Electronics Nv | コンピュータ断層撮影装置用の放射線センサ及び放射線検出器 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245177A (ja) * | 1986-04-17 | 1987-10-26 | Yokogawa Electric Corp | 半導体放射線検出器 |
JPH02128184A (ja) * | 1988-11-09 | 1990-05-16 | Fuji Electric Co Ltd | 半導体式放射線検出器のバイアス異常検出装置 |
JPH04168395A (ja) * | 1990-10-31 | 1992-06-16 | Toshiba Corp | 放射線モニタ装置 |
JP2002277556A (ja) * | 2001-02-22 | 2002-09-25 | Koninkl Philips Electronics Nv | コンピュータ断層撮影装置用の放射線センサ及び放射線検出器 |
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