New UV detectors for solar observations
New UV detectors for solar observations
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用于太阳观测的新型紫外线探测器
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
C. van Hoof
中科院分区：
文献类型：
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作者：
J. Hochedez;U. Schuehle;J. Pau;J. Alvarez;O. Hainaut;T. Appourchaux;F. D. Auret;A. Belsky;P. Bergonzo;M. Castex;A. Deneuville;P. Dhez;B. Fleck;K. Haenen;M. Idir;J. Kleider;É. Lefeuvre;P. Lemaire;E. Monroy;P. Muret;E. Muñoz;M. Nesladek;F. Omnès;E. Pace;A. Peacock;C. van Hoof
BOLD(对光学光探测器的盲目)是一个致力于开发用于紫外线太阳观测的新型成像探测器的国际倡议。它依赖于宽带隙材料的特性(特别是钻石和Al-Ga-氮化物)。这次调查是针对太阳轨道飞行器(S.O.)提出的。对于紫外线仪器来说，新传感器的预期好处--主要是可见性失明和辐射硬度--将是非常有价值的。尽管成像探测器技术在过去几十年中取得了各种进步，但目前基于硅CCD或微通道板的UV成像器显示出其实际材料和技术固有的局限性。然而，最高的空间分辨率、快速的时间节奏、灵敏度和测光精度将对即将到来的太阳空间任务起决定性作用。基于宽带隙材料的成像仪的出现将使新的观测成为可能，并通过简化设计，使仪器变得更便宜。至于太阳轨道器，对基于宽带隙材料(WBGM)的紫外线探测器的渴望仍然更加敏感，因为航天器将接近太阳，那里的热量和辐射通量都很高。我们描述了其动机，并提出了在太阳轨道器时间表内实现革命性飞行相机以及相关紫外线测量的计划。
BOLD (Blind to the Optical Light Detectors) is an international initiative dedicated to the development of novel imaging detectors for UV solar observations. It relies on the properties of wide bandgap materials (in particular diamond and Al-Ga-nitrides). The investigation is proposed in view of the Solar Orbiter (S.O.) UV instruments, for which the expected benefits of the new sensors -primarily visible blindness and radiation hardness- will be highly valuable. Despite various advances in the technology of imaging detectors over the last decades, the present UV imagers based on silicon CCDs or microchannel plates exhibit limitations inherent to their actual material and technology. Yet, the utmost spatial resolution, fast temporal cadence, sensitivity, and photometric accuracy will be decisive for the forthcoming solar space missions. The advent of imagers based on wide-bandgap materials will permit new observations and, by simplifying their design, cheaper instruments. As for the Solar Orbiter, the aspiration for wide-bandgap material (WBGM) based UV detectors is still more sensible because the spacecraft will approach the Sun where the heat and the radiation fluxes are high. We describe the motivations, and present the program to achieve revolutionary flight cameras within the Solar Orbiter schedule as well as relevant UV measurements.