Marshall Grazing Incidence X-ray Spectrometer Slitjaw Imager Implementation and Performance
Marshall Grazing Incidence X-ray Spectrometer Slitjaw Imager Implementation and Performance
复制标题
马歇尔掠射 X 射线光谱仪狭缝成像仪的实现和性能
作者：
G. Vigil;A. Winebarger;Ken Kobayashi;P. Cheimets;P. Champey;S. Savage;L. Golub;B. Watkinson;B. Beabout;B. Weddendorf;R. Walsh
马歇尔掠入射x射线光谱仪（magxs）是一种狭缝光谱仪，设计用于在探测火箭上飞行，并在软x射线（SXRs）中观察太阳，以确定日冕加热事件的频率。MaGIXS波长范围（≈0.6 - 2.5 nm）在日冕温度下形成了大量的诊断线，但开发SXR仪器面临着一些挑战，包括如何有效地进行环境成像。在飞行过程中，为了指向仪器，以及在飞行后与协调数据集共同对准，需要狭颚图像，但在SXR制度下运行意味着，一个简单的正入射光学系统不能被用来成像与光谱仪相同的波长范围。因此，为了避免额外掠射光学的复杂性，MaGIXS狭颚系统被设计为在大约20 - 80 nm的极紫外（EUV）下成像。该EUV带通的温度灵敏度将观察到MaGIXS仪器可见的互补特征。然后，狭颚上的图像通过荧光粉涂层转换为易于检测的可见光。本文介绍了MaGIXS狭缝成像系统的设计、实现和特性。狭缝仪器配备了一个入口滤光片，将极紫外光和x射线一起通过狭缝，激发荧光涂层并使其在可见光中发射。然后，这种可见光可以通过商用现成（COTS）光学器件和低光相机的简单实现进行成像。这样的设计大大降低了实现和测试x射线仪器系统狭颚成像仪的复杂性，并将完成MaGIXS的指向和共对准要求。
The Marshall Grazing Incidence X-ray Spectrometer (MaGIXS) is a slit spectrograph designed to fly on a sounding-rocket and to observe the Sun in soft X-rays (SXRs) to determine the frequency of coronal heating events. The MaGIXS wavelength range (≈ 0.6 – 2.5 nm) has a significant number of diagnostic lines formed at coronal temperatures, but developing SXR instrumentation presents several challenges, including how to efficiently perform context imaging. A slitjaw image is required for pointing the instrument during flight and for co-alignment with coordinated data sets after flight, but operating in the SXR regime implies that a simple normal-incidence optical system could not be employed to image the same wavelength range as the spectrograph. Therefore, to avoid the complexity of additional grazing-incidence optics, the MaGIXS slitjaw system is designed to image in the extreme ultraviolet (EUV) between roughly 20 – 80 nm. The temperature sensitivity of this EUV bandpass will observe complementary features visible to the MaGIXS instrument. The image on the slitjaw is then converted, via a phosphor coating, to readily detectable visible light. Presented here is the design, implementation, and characterization of the MaGIXS slitjaw imaging system. The slitjaw instrument is equipped with an entrance filter that passes EUV light, along with X-rays, onto the slit, exciting a fluorescent coating and causing it to emit in the visible. This visible light can then be imaged by a simple implementation of commercial off-the-shelf (COTS) optics and low-light camera. Such a design greatly reduces the complexity of implementing and testing the slitjaw imager for an X-ray instrument system and will accomplish the pointing and co-alignment requirements for MaGIXS.
马歇尔掠射 X 射线光谱仪 (MaGIXS) 的首次飞行
DOI：
10.3847/1538-4357/acbb58
发表时间：
2023
期刊：
The Astrophysical Journal
影响因子：
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作者：
Savage S
通讯作者：
Savage S