4MOST guiding and wavefront sensing cameras: requirements and early testing
4MOST guiding and wavefront sensing cameras: requirements and early testing
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4MOST 引导和波前传感相机：要求和早期测试
DOI：
10.1117/12.2629893
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
S. Barden
中科院分区：
文献类型：
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作者：
O. Bellido;S. Frey;U. Lemke;Miklos Gäbler;J. Brynnel;G. Sims;Roger W. Cover;T. Liebner;T. Fechner;T. Hahn;S. Barden
在欧洲南方天文台帕拉纳尔4米VISTA宽视场望远镜上实施4MOST设施需要对望远镜进行重大修改。由于当前的采集和引导（A&G）以及波前传感光学系统（WFS）嵌入在VIRCAM中，并将随其一起移除，因此必须提供替代品。尽管A&G和WFS相机的用途不同，但它们有共同的要求。在共同的要求中，有几项特别具有挑战性。例如，摄像机将暴露的环境条件要求它们具有IP54保护，并且由于它们的位置，它们不能将热量散发到环境空气中。为了确保光学对准，相机必须具有非常精确的外壳和机械接口。此外，两者都必须集成到现有的望远镜控制环境中，这需要使用服务接口和协议（例如GigE Vision）以及必须满足的操作要求。在考虑了A&G摄像机、WFS探测器和辅助导向器传感器的具体性能要求后，决定对所有这些摄像机使用相同的定制设计CCD摄像机模型。这些相机由Spectral Instruments提供。在这项工作中，我们提出了这样的相机的要求，他们的光学机械设计和他们的验证活动的第一个结果，无论是在光谱仪器和AIP的前提。
The implementation of the 4MOST Facility at the ESO Paranal 4-meter VISTA wide-field telescope requires a substantial modification of the telescope. Since the current acquisition and guiding (A&G) and wavefront sensing optical systems (WFS) are embedded in VIRCAM and will be removed with it, replacements had to be provided. Although the A&G and WFS cameras will serve different purposes, they share common requirements. Among the shared requirements, a few are particularly challenging. For example, the environmental conditions the cameras will be exposed to require them to have an IP54 protection and due to their location, they cannot dissipate heat to the ambient air. To ensure optical alignment, the cameras must have very accurate housing and mechanical interfaces. In addition, both have to be integrated into an existing telescope control environment, with all that this entails in terms of service interfaces and protocols that can be used (e.g. GigE Vision), as well as operational requirements that must be met. After considering the specific performance requirements for the A&G cameras, the WFS detectors and the secondary guider sensor, a decision was made to use the same custom designed CCD camera model for all of them. These cameras are provided by Spectral Instruments. In this work we present the requirements for such cameras, their opto-mechanical design and the first results of their verification campaign, both at Spectral Instrument and AIP premises.
4MOST：4米多目标光谱望远镜项目处于组装、集成和测试阶段
DOI：
10.1117/12.2628965
发表时间：
2022
期刊：
--
影响因子：
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作者：
De Jong R
通讯作者：
De Jong R