広視野ガンマ線カメラによるブラックホールからの熱的ガンマ線放射の探索

• Project/Area Number: 14079203
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Kyoto University
• Principal Investigator: 谷森 達 Kyoto University, 大学院・理学研究科, 教授 (10179856)
• Co-Investigator(Kenkyū-buntansha): 窪 秀利 京都大学, 大学院・理学研究科, 助教 (40300868) ; 身内 賢太朗 (身内 賢太郎) 京都大学, 大学院・理学研究科, 助教 (80362440)
• Project Period (FY): 2002 – 2006
• Project Status: Completed (Fiscal Year 2006)
• Budget Amount: ¥194,700,000 (Direct Cost: ¥194,700,000); Fiscal Year 2006: ¥32,600,000 (Direct Cost: ¥32,600,000); Fiscal Year 2005: ¥35,300,000 (Direct Cost: ¥35,300,000); Fiscal Year 2004: ¥47,000,000 (Direct Cost: ¥47,000,000); Fiscal Year 2003: ¥53,800,000 (Direct Cost: ¥53,800,000); Fiscal Year 2002: ¥26,000,000 (Direct Cost: ¥26,000,000)
• Keywords: 核ガンマ線 / ブラックホール / コンプトン散乱 / ガス増幅検出器 / コンプトンカメラ / Time Projection Chamber / 気球実験 / ガンマ線イメージング / TPC / ガス検出器 / 気球

Research Abstract

我々は18年度に10cm角電子飛跡検出型コンプトンカメラを搭載した気球実験を行い、宇宙拡散ガンマ線および大気2次ガンマ線のサブMeV領域での検出実験を行い、良質のデータを取ることに成功した。18年度に荒いデータ解析は終了したが、実験精度、特に宇宙線による大気からのガンマ線雑音、大気による吸収などを正確にシミュレーションするため、シミュレーションの改良を中心に行った。特に精度向上のため気球搭載装置を実験室で再度動作させ、装置のレスポンスをシミュレーションで精度良く再現できる要調整作業を行った。また大気構造なども精度よくシミュレーションに取り入れることで、今回世界で初めて数十keVから十MeV付近までの広いエネルギー範囲での大気ガンマ線シミュレーションに成功、今までの計算、シミュレーションなどともスペクトル、および天頂角分布に対して良い一致が得られた。このように信頼性のあるシミュレーションを完成させた。またこのシミュレーションによりデータ解析も改良され検出ガンマ線を約2倍に増やすことが出来た。またこのシミュレーションにより検出器細部の動作を再現することが可能となり、今後の改善点が明確になるようになった。今、これらの成果をまとめている。また地上での30x30x30cmのTPCおよびGSOピクセルカメラを組み合わせた大型カメラの製作も終了し、300keV-900keVの範囲でガンマ線再構成に成功した。

Research Products

• [Journal Article] Gamma-ray imaging with a large micro-TPC and a scintillation camera (2007)
  • Author(s): K. Hattori, et. al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Sect. A. 581 Pages: 517-521
• [Journal Article] Performance of a Time-Projection-Chamber with a Large-Area Micro-Pixel-Chamber Readout (2007)
  • Author(s): K. Miuchi, et. al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Sect. A. 576 Pages: 43-46
• [Journal Article] A very large area Micro Pixel Chamber (2007)
  • Author(s): A. Takada, et. al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Sect. A. 573 Pages: 195-199
• [Journal Article] Development of large area gamma-ray camera with GSO(Ce) scintillator arrays and PSPMTs (2007)
  • Author(s): H. Nishimura, et. al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Sect. A. 573 Pages: 115-118
• [Journal Article] Simulation study of electron drift and gas multiplication in Micro Pixel Chamber (2005)
  • Author(s): T.Nagayoshi, et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A 546 Pages: 457-465
• [Journal Article] Development of an advanced Compton camera with gaseous TPC and scintillator (2005)
  • Author(s): A.Takada, et al.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A 546 Pages: 258-262
• [Journal Article] Development of μ-PIC as a time-resolved X-ray area detector (2005)
  • Author(s): A.Takeda, et al.
  • Journal Title: Journal of Synchrotron Radiation 12 Pages: 820-825
• [Journal Article] Performance and applications of a micro-TPC (2004)
  • Author(s): K.Miuchi, T.Tanimori (11人中8番目)他
  • Journal Title: Nuclear Instruments and Methods in Physics Research A 535 Pages: 236-242
• [Journal Article] Time projection chamber based on micro-pattern detector for neutron time-resolved imaging (2004)
  • Author(s): T.Tanimori (8人中1番目)他
  • Journal Title: Nuclear Instruments and Methods in Physics Research A 529 Pages: 373-377
• [Journal Article] Development of an MeV gamma-ray imaging detector (2004)
  • Author(s): A.Takeda, T.Tanimori (11人中8番目)他
  • Journal Title: IEEE Transactions on Nuclear Science 51巻 4号 Pages: 2140-2144
• [Journal Article] Development of an ASD IC for the Micro Pixel Chamber (2004)
  • Author(s): R.Orito, T.Tanimori (9人中8番目)他
  • Journal Title: IEEE Transactions on Nuclear Science 51巻4号 Pages: 1337-1342
• [Journal Article] Compton gamma-ray imaging detector with electron tracking (2004)
  • Author(s): R.Orito, T.Tanimori(8人中7番目)他
  • Journal Title: Nuclear Instruments and Methods in Physics Research A 525 Pages: 107-113
• [Journal Article] Development of μ-PIC and its imaging properties (2004)
  • Author(s): T.Nagayoshi, T.Tanimori (10人中7番目)他
  • Journal Title: Nuclear Instruments and Methods in Physics Research A 525 Pages: 20-27
• [Journal Article] Performance of the micro-TPC for the time-resolved neutron PSD (2004)
  • Author(s): K.Miuchi, T.Tanimori (8人中7番目)他
  • Journal Title: Nuclear Instruments and Methods in Physics Research A 517 Pages: 219-225
• [Journal Article] MeV Gamma-Ray Imaging Detector with micro-TPC (2004)
  • Author(s): Toru Tanimori(8人中1番目)他
  • Journal Title: New Astronomy Reviews 48 Pages: 263-268
• [Journal Article] 微細加工技術を用いたガス・マイクロパターン検出器μ-PICの開発とその応用 (2004)
  • Author(s): 永吉 勉, 身内 賢太朗, 窪 秀利, 谷森 達
  • Journal Title: 高エネルギーニュース 第23巻 1号 Pages: 1-6
• [Publications] T.Tanimori, H.Kubo, K.Miuchi, 他: "MeV Gamma-Ray Imaging Detector with micro-TPC"New Astronomy Reviews. 48. 263-268 (2004)
• [Publications] K.Miuchi, H.Kubo, T.Tanimori, 他: "Performance of the micro-TPC for the time-resolved neutron PSD"Nuclear Instruments & Methods in Physics Research A. 517. 219-225 (2004)
• [Publications] T.Tanimori, H.Kubo, K.Miychi, 他: "Detecting the WIMP-wind via spin-dependent interactions"Physics Letters B. 578. 241-246 (2004)
• [Publications] R.Orito, T.Tanimori, H.Kubo, K.Miuchi, 他: "A novel design of the MeV gamma-ray imaging detector with Micro-TPC"Nuclear Instruments & Methods in Physics Research A. 513. 408-412 (2003)
• [Publications] T.Nagayoshi, H.Kubo, K.Miuchi, T.Tanimori, 他: "Performance of large area Micro Pixel Chamber"Nuclear Instruments & Methods in Physics Research A. 513. 277-281 (2003)
• [Publications] H.Kubo, K.Miuchi, Toru Tanimori, 他: "Development of the time projection chamber with micro pixel electrodes"Nuclear Instruments & Methods in Physics Research A. 513. 94-98 (2003)
• [Publications] T.Nagayoshi et al.: "Performance of large area Micro Pixel Chamber"Nuclear Instruments and Methods in Physics Research Sect. A. (in press). (2003)
• [Publications] H.Kubo et al.: "Development of a time projection chamber with micro pixel electrodes"Nuclear Instruments and Methods in Physics Research Sect. A. (in press). (2003)
• [Publications] R.Orito et al.: "A novel design of the MeV gamma-ray imaging detector with Micro-TPC"Nuclear Instruments and Methods in Physics Research Sect. A. (in press). (2003)
• [Publications] K.Miuchi et al.: "Performance of the TPC with Micro Pixel Chamber readout : micro-TPC"IEEE transactions on nuclear science. (in press). (2003)