Further test mass charging simulations for ASTROD I
文献类型：期刊论文
| 作者 | Bao, Gang2,3 ; Ni, Wei-Tou3; Shaul, D. N. A.4; Araujo, H. M.4; Liu, Lei1,2; Sumner, T. J.4
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| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS D
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| 出版日期 | 2008-07-01 |
| 卷号 | 17期号:7页码:965-983 |
| 关键词 | ASTROD I charging GEANT4 disturbances |
| ISSN号 | 0218-2718 |
| 英文摘要 | Electrostatic test mass charging in the ASTROD I (Astrodynamical Space Test of Relativity using Optical Devices I) mission can affect the quality of the science data due to spurious Coulomb and Lorentz forces. To estimate the size of the resultant disturbances, credible predictions of charging rates and the charging noise are required. Using the GEANT4 software toolkit, we present a detailed Monte Carlo simulation of ASTROD I test mass charging due to exposure of the spacecraft to galactic cosmic-ray (GCR) protons and alpha particles ((3)He, (4)He) in the space environment. A positive charging rate of 33.3 e(+)/s at solar minimum is predicted. The predicted rate reduces by 50% at solar maximum. Based on this charging rate and factoring in the contribution of minor cosmic-ray components, we calculate the acceleration noise and stiffness associated with charging. We conclude that the acceleration noise arising from Coulomb and Lorentz effects are well below the ASTROD I acceleration noise limit at 0.1 mHz both at solar minimum and maximum. The magnitude of coherent Fourier components due to charging are also estimated. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LISA-PATHFINDER ; MISSION ; DISTURBANCES ; SYSTEM |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000258314200004 |
| 公开日期 | 2011-12-29 |
| 源URL | [http://159.226.72.40/handle/332002/1861]  |
| 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 | 1.Chinese Acad Sci, Purple Mt Observ, Ctr Gravitat & Cosmol, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100049, Peoples R China 4.Univ London Imperial Coll Sci Technol & Med, Blackett Lab, High Energy Phys Grp, London SW7 2AZ, England |
| 推荐引用方式 GB/T 7714 | Bao, Gang,Ni, Wei-Tou,Shaul, D. N. A.,et al. Further test mass charging simulations for ASTROD I[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS D,2008,17(7):965-983. |
| APA | Bao, Gang,Ni, Wei-Tou,Shaul, D. N. A.,Araujo, H. M.,Liu, Lei,&Sumner, T. J..(2008).Further test mass charging simulations for ASTROD I.INTERNATIONAL JOURNAL OF MODERN PHYSICS D,17(7),965-983. |
| MLA | Bao, Gang,et al."Further test mass charging simulations for ASTROD I".INTERNATIONAL JOURNAL OF MODERN PHYSICS D 17.7(2008):965-983. |
入库方式： OAI收割
来源：紫金山天文台
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