ASO-S卫星HXI量能器探测单元的标定
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1.中国科学院紫金山天文台南京210023;2.中国科学院暗物质与空间天文重点实验室南京210023;3.中国科学院大学北京100049

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Calibration of the Detector Units of the Spectrometer of the Hard X-ray Imager Payload Onboard the ASO-S Mission
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1. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023;2. Key Laboratory of Dark Matter and Space Astronomy, Chinese Academy of Sciences, Nanjing 210023;3. University of Chinese Academy of Sciences, Beijing 100049;

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    摘要:

    先进天基太阳天文台卫星(Advanced Space-based Solar Observatory, ASO-S)是中国科学院第2批空间科学先导专项之一, 其主要目标是同时观测太阳磁场、耀斑和日冕物质抛射,并对3者之间的相互关系和内在联系进行研究. 硬X射线成像仪(HXI)是ASO-S卫星的3大载荷之一, 它通过对太阳活动发射的硬X射线进行傅里叶调制成像, 实现高空间分辨率和高时间分辨率的太阳能谱成像观测. 量能器单机是HXI的关键单机之一, 其主要任务是精准测量通过每对光栅后太阳硬X射线的能量和通量. 主要介绍了量能器单机的工作原理及其关键指标要求、标定设备及标定方案, 最后给出了标定结果, 从而验证了量能器单机方案设计的合理性.

    Abstract:

    The Advanced Space-based Solar Observatory (ASO-S) is one of the projects within the framework of the strategic priority program stage II (SPPII) on space science of the Chinese Academy of Sciences. The most important scientific goals of ASO-S are to study the relationships between the solar magnetic field, solar flares, and coronal mass ejections (CMEs). The Hard X-ray Imager (HXI) is one of the three payloads onboard ASO-S, it can obtain high spatial resolution and high cadence solar spectral imaging observations by Fourier modulation imaging of hard X-ray emitted by solar flares. The spectrometer is a core component of the HXI, whose main task is to precisely measure the energy and flux of solar hard X-ray passing through a grating pair. This paper presents the principle, key requirements, calibration equipment, and calibration scheme of the spectrometer. Finally, the calibration results are given to verify the correctness of the design of the spectrometer.

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黄永益,马涛,张永强,张岩,张哲.ASO-S卫星HXI量能器探测单元的标定[J].天文学报,2020,(4):99-106.

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  • 收稿日期:2020-02-03
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  • 在线发布日期: 2020-07-30
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