Test mass charging simulation of ASTROD I due to solar energetic particles at 0.5 AU
文献类型：期刊论文
| 作者 | Bao Gang ; Liu Lei
|
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2010-06-01 |
| 卷号 | 53期号:6页码:1139-1143 |
| 关键词 | charging simulation ASTROD I GEANT4 solar energetic particles |
| ISSN号 | 1674-7348 |
| 英文摘要 | Maintaining the geodesic motion of the test mass is vital to ASTROD I space mission. However, the electrostatic charging of the test mass due to cosmic rays and solar energetic particles will result in Coulomb and Lorentz forces and consequently influence the test mass motions. To estimate the size of these effects, a credible simulation of test mass charging processes is critically required. Using the GEANT4 software toolkit, we have modeled the charging processes and predict how the ASTROD I test mass will charge positively at a rate of 217370 e(+)/s, due to solar energetic particles (SEPs) at similar to 0.5 AU caused by the largest SEPs event on 29, September, 1989. In addition to Monte Carlo uncertainty, an error of +/- 30% in the net charging rates was added to account for uncertainties in the spectra, physics and geometry models. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LISA ; DISTURBANCES ; MISSION |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000278695200025 |
| 公开日期 | 2011-11-23 |
| 源URL | [http://159.226.72.40/handle/332002/1071]  |
| 专题 | 紫金山天文台_近地天体探测和太阳系天体研究团组 |
| 作者单位 | Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao Gang,Liu Lei. Test mass charging simulation of ASTROD I due to solar energetic particles at 0.5 AU[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(6):1139-1143. |
| APA | Bao Gang,&Liu Lei.(2010).Test mass charging simulation of ASTROD I due to solar energetic particles at 0.5 AU.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(6),1139-1143. |
| MLA | Bao Gang,et al."Test mass charging simulation of ASTROD I due to solar energetic particles at 0.5 AU".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.6(2010):1139-1143. |
入库方式： OAI收割
来源：紫金山天文台
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