arXiv 0912.02332009-12-01astro-ph.IM

基于Geant4的Radioactive Decay仿真的进展与验证--以Simbol-X和IXO为例

Progress and Validation of Geant4 Based Radioactive Decay Simulation Using the Examples of Simbol-X and IXO

S. Hauf, M. Kuster, M. G. Pia, Z. Bell, U. Briel, R. Chipaux, D. H. H. Hoffmann, E. Kendziorra, P. Laurent, L. Strüder, C. Tenzer, G. Weidenspointer, A. Zoglauer

备注：: 6 pages, 7 figures and images, to appear in proceedings of the Nuclear Science Symposium and Medical Imaging Conference 2009, Orlando

阅读 PDF

arXiv 页面 ↗HTML 原文 ↗

摘要：

国际X射线天文台或Simbol-X等下一代X射线空间飞行任务的预期高灵敏度和科学目标依赖于低仪器背景，这反过来又需要优化屏蔽概念。我们目前的Geant 4为基础的模拟结果的IXO宽视场成像宇宙射线质子诱导的背景与以前的结果相比，Simbol-X LED和HED焦平面探测器。我们的研究结果表明，改善平均差分背景通量相比，实际操作的X射线天文台可能是可行的探测器的基础上DEPFET技术。此外，我们目前的初步结果有关的验证Geant 4为基础的放射性衰变模拟在空间应用的Nano 5项目的一部分。

英文摘要：

The anticipated high sensitivity and the science goals of the next generation X-ray space missions, like the International X-ray Observatory or Simbol-X, rely on a low instrumental background, which in turn requires optimized shielding concepts. We present Geant4 based simulation results on the IXO Wide Field Imager cosmic ray proton induced background in comparison with previous results obtained for the Simbol-X LED and HED focal plane detectors. Our results show that an improvement in mean differential background flux compared to actually operating X-ray observatories may be feasible with detectors based on DEPFET technology. In addition we present preliminary results concerning the validation of Geant4 based radioactive decay simulation in space applications as a part of the Nano5 project.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。