Mid-infrared camera without lens (MIRACLE) for SPICA

Mid-infrared camera without lens (MIRACLE) for SPICA
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SPICA用无镜头中红外相机(MIRACLE)

DOI:
10.1117/12.858639
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发表时间:
2010
期刊:
arXiv: Astrophysics of Galaxies
影响因子:
--
通讯作者:
H. Kataza
H. Kataza
中科院分区:
--
文献类型:
--
作者:
T. Wada;H. Kataza

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不带 LEns 的中红外相机 (MIRACLE) 是用于未来 JAXA/ESA 红外天文任务 SPICA 的焦平面仪器。 MIRACLE 设计用于在中红外波长 (5-38μm) 的宽光谱范围内进行宽视场成像 (5' × 5') 和低分辨率光谱观察 (R~100)。得益于 SPICA 的大口径(3 米级)和冷(<6K)望远镜,MIRACLE 在 20μm 以上波长处具有比 JWST/MIRI 更高的灵敏度(20μm 处为 3.5 μJy,R=5,S/N=5,3600 秒),并且其更宽的视场 (FOV) 为点源在全光谱范围内提供了更快的映射速度。共焦离轴反射成像系统提供宽视场,在宽光谱范围内具有衍射限制的图像质量。 MIRACLE 由两个通道组成:MIRACLE-S 和 MIRACLE-L,分别针对 5-26μm 和 20-38μm 进行了优化。它们分别由前光学器件和后光学器件组成,每个光学器件的光瞳位置分别配备有滤光轮和光栅轮。视场光阑轮安装在前光学器件的焦平面上,可在光谱模式下提供最佳狭缝,并在成像模式下提供宽视场。在后光学器件的焦平面上安装了大尺寸阵列探测器(MIRACLE-S为Si:As 2K×2K,MIRACLE-L为Si:Sb 1K×1K),以实现点扩散函数的奈奎斯特采样。根据 Spitzer 和 AKARI 观测的经验,在选择滤光带时考虑了连续波长覆盖范围。我们将展示包括敏感性分析在内的概念设计研究结果。
Mid-InfRAred Camera w/o LEns (MIRACLE) is a focal plane instrument for the future JAXA/ESA infrared astronomical mission, SPICA. MIRACLE is designed for wide field imaging (5' × 5') and low-resolution spectroscopic observations (R~100) over a wide spectral range in the mid-infrared wavelengths (5-38μm). Thanks to the SPICA's large aperture (3-m class) and cold (<6K) telescope, MIRACLE has a better sensitivity than JWST/MIRI at the wavelength over 20μm (3.5 μJy at 20μm, R=5, S/N=5, 3600 seconds) and its wider field of view (FOV) provides a faster mapping speed in its full spectral range for point sources. Confocal off-axis reflective imaging system provides a wide FOV with diffraction limited image quality over wide spectral range. MIRACLE consists of two channels: MIRACLE-S and MIRACLE-L, which are optimized for 5-26μm and 20- 38μm, respectively. Each of them consists of a fore-optics and a rear-optics, each of which has a pupil position equipped with a filter wheel and a grating wheel, respectively. A field stop wheel, which provides optimal slits in the spectroscopic mode and a wide FOV in the imaging mode, is installed at the focal plane of the fore-optics. A large format array detector (Si:As 2K×2K for MIRACLE-S and Si:Sb 1K×1K for MIRACLE-L) is installed at the focal plane of the rear-optics in order to achieve Nyquist sampling of the point spread function. Contiguous wavelength coverage is considered in choice of the filter bands from the experiences in the Spitzer and AKARI observations. We will present the results of conceptual design study including sensitivity analysis.
DOI: 10.1111/j.1365-2966.2008.13931.x
发表时间: 2008-09
影响因子: 4.8
作者:
Y. Koyama;T. Kodama;K. Shimasaku;S. Okamura;Masayuki Tanaka;Hyung-Mok Lee;M. Im;H. Matsuhara;T. Takagi;T. Wada;S. Oyabu
通讯作者: Y. Koyama;T. Kodama;K. Shimasaku;S. Okamura;Masayuki Tanaka;Hyung-Mok Lee;M. Im;H. Matsuhara;T. Takagi;T. Wada;S. Oyabu
用于 SPICA 的中红外高分辨率阶梯光栅光谱仪 (MIRHES)
DOI: --
发表时间: 2010
期刊: Proceedings of SPIE 7010
影响因子: --
作者:
Kobayashi;N.;Sarugaku;Y.;Ikeda Y.;Kawakita H.;Enya K.;Nakagawa T.;Kataza H.;Matsuhara H.;Hirahara Y.;Tokoro H.
通讯作者: Tokoro H.
DOI: 10.1016/j.asr.2007.05.009
发表时间: 2007-01-01
影响因子: 2.6
作者:
Nakagawa, Takao;Murakami, Hiroshi
通讯作者: Murakami, Hiroshi