The optical design and physical optics analysis of a cross-Dragonian telescope for LiteBIRD
The optical design and physical optics analysis of a cross-Dragonian telescope for LiteBIRD
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LiteBIRD跨龙望远镜的光学设计与物理光学分析
DOI：
10.1117/12.2312185
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Imada Hiroaki
中科院分区：
文献类型：
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作者：
Dotani Tadayasu;Hasebe Takashi;Hazumi Masashi;Inatani Junji;Ishino Hirokazu;Kashima Shingo;Katayama Nobuhiko;Kimura Kimihiro;Matsumura Tomotake;Nagata Ryo;Sekimoto Yutaro;Sugai Hajime;Suzuki Aritoki;Utsunomiya Shin;Imada Hiroaki
用于研究宇宙微波背景辐射（CMB）辐射探测的B模式偏振和暴胀的Lite卫星（LiteBIRD）是致力于探测暴胀宇宙的下一代CMB卫星。它有两个望远镜，低频望远镜（LFT）和高频望远镜（HFT），覆盖从34 GHz到448 GHz的宽观测波段。在本报告中，我们报告的LFT的光学设计和表征。我们已经使用CODE-V获得了基于十字龙望远镜的LFT光学设计。它是一个像空间远心系统，F数为3.5，视场为20 x 10 degrees2。采用HFSS和GRASP 10相结合的方法计算了远场主瓣、近瓣和远瓣。结果表明，LFT望远镜具有良好的主瓣特性，满足使用要求。另一方面，旁瓣受到三重反射和馈电直接路径产生的杂散光的影响。为了避免杂散光，现在正在研究阻断这些路径的方法。
The Lite satellite for the studies of B-mode polarization and Inflation from the cosmic microwave background (CMB) Radiation Detection (LiteBIRD) is a next generation CMB satellite dedicated to probing the inflationary universe. It has two telescopes, Low Frequency Telescope (LFT) and High Frequency Telescope (HFT) to cover wide observational bands from 34 GHz to 448 GHz. In this presentation, we report the optical design and characterization of the LFT. We have used the CODE-V to obtain the LFT optical design based on a cross- Dragonian telescope. It is an image-space telecentric system with an F number of 3.5 and 20 x 10 degrees2field of view. The main, near and far side lobes at far-field have been calculated by using a combination of HFSS and GRASP 10. It is revealed that the LFT telescope has good main lobe properties to satisfy the requirements. On the other hand, the side lobes are affected by the stray light that stems from the triple reflection and the direct path from feed. In order to avoid the stray light, the way to block these paths is now under study.
EPIC-IM十字型Dragone望远镜的光学设计
DOI：
10.1117/12.857423
发表时间：
2010
期刊：
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影响因子：
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作者：
H. Tran;Brad L. Johnson;M. Dragovan;J. Bock;A. Aljabri;A. Amblard;D. Bauman;M. Betoule;T. Chui;L. Colombo;A. Cooray;D. Crumb;P. Day;C. Dickenson;D. Dowell;S. Golwala;K. Gorski;S. Hanany;W. Holmes;K. Irwin;B. Keating;C. Kuo;Adrian T. Lee;A. Lange;C. Lawrence;S. Meyer;N. Miller;Hien Nguyen;E. Pierpaoli;N. Ponthieu;J. Puget;J. Raab;P. Richards;C. Satter;M. Seiffert;M. Shimon;B. Williams;J. Zmuidzinas
通讯作者：
J. Zmuidzinas
Takashi Ebisawa：“地昔帕明对 C_6 神经胶质瘤细胞中 β-肾上腺素能受体的毒性作用。”
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