A new generation gamma-ray camera for planetary science applications
| Autor: | Kobayashi, S, Hasebe, N, Hosojima, T, Igarashi, T, Kobayashi, MN, Mimura, M, Miyachi, T, Miyajima, M, Pushkin, KN, Sakaba, H, Tezuka, C, Doke, T, Shibamura, E, Ehrenfreund, P, Foing, B, Cellino, A |
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| Přispěvatelé: | University of Groningen |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Atmospheric Science
Physics::Instrumentation and Detectors Astrophysics::High Energy Astrophysical Phenomena Aerospace Engineering chemistry.chemical_element planetary mission Optics Xenon Angular resolution SPECTROMETER Nuclear Experiment high-pressure xenon gas MISSION Physics Time projection chamber Spectrometer Planetary surface Scattering business.industry Detector Astronomy and Astrophysics Geophysics Planetary science chemistry Space and Planetary Science General Earth and Planetary Sciences time-projection chamber business gamma-ray camera |
| Zdroj: | MOON AND NEAR-EARTH OBJECTS, 28-33 STARTPAGE=28;ENDPAGE=33;TITLE=MOON AND NEAR-EARTH OBJECTS |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2005.05.106 |
| Popis: | A new gamma-ray imaging camera based on High-pressure Xe Time-Projection-Chamber (HPXe-TPC) allows us to simultaneously determine arrival direction and its energy of individual incident gamma rays. HPXe-TPC is a promising y-ray detector for planetary science which provides means of global mapping of elemental composition in planetary surface as the remote sensing spectrometer. The simulation study by Geant4 and numerical calculation show that the angular resolution is mostly affected by multiple scattering of the recoil electron, and position resolution of electrodes of TPC. It is found that the angular resolution is 9 degrees (50%) at 2 MeV for gamma rays. The feasibility of HPXe-TPC is discussed as a y-ray imaging camera for future planetary mission. (C) 2005 COSPAR. Published by Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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