用于多目标红外光谱仪的紧凑型低温可配置狭缝装置:TIFR原型的设计和开发

IF 1.5 Q3 ASTRONOMY & ASTROPHYSICS Journal of Astronomical Instrumentation Pub Date : 2023-07-28 DOI:10.1142/s2251171723500101
P. Madhwani, A. Kutty, B. Mookerjea, J. Parmar, V. Kurhade, S. D’costa, P. Manoj, A. Surya
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引用次数: 1

摘要

我们提出了一种用于多目标红外光谱仪的低温可配置狭缝单元(CSU),其有效视场为9.1 arcmin x 9.1 arcmin,这是在TIFR实验室中完全构思和设计的。CSU的几个部件,包括商业采购的压电步行器的控制器、使用数字游标卡尺的受控回路位置传感机构以及组装原型的低温测试设施,也在内部开发。CSU的原理包括将光谱仪的视场划分为连续和平行的空间带,每个空间带都与两个相对的滑动金属条相关联,可以定位这些金属条来创建对一个天文物体进行光谱观测所需的狭缝。建造了新设计的CSU的三狭缝原型,并在环境和低温下进行了广泛的测试。CSU的性能符合规范要求。
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A compact cryogenic configurable slit unit for a multi-object infrared spectrograph: Design and Development of a prototype at TIFR
We present a cryogenic configurable slit unit (CSU) for a multi object infrared spectrograph with an effective field of view of 9.1 arcmin x 9.1 arcmin that was completely conceived and designed in the laboratory at TIFR. Several components of the CSU including the controller for the commercially procured piezo-walkers, controlled loop position sensing mechanism using digital slide callipers and a cryogenic test facility for the assembled prototype were also developed in-house. The principle of the CSU involves division of the field of view of the spectrometer into contiguous and parallel spatial bands, each one associated with two opposite sliding metal bars that can be positioned to create a slit needed to make spectroscopic observations of one astronomical object. A three-slit prototype of the newly designed CSU was built and tested extensively at ambient and cryogenic temperatures. The performance of the CSU was found to be as per specifications.
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来源期刊
Journal of Astronomical Instrumentation
Journal of Astronomical Instrumentation ASTRONOMY & ASTROPHYSICS-
CiteScore
2.30
自引率
7.70%
发文量
19
期刊介绍: The Journal of Astronomical Instrumentation (JAI) publishes papers describing instruments and components being proposed, developed, under construction and in use. JAI also publishes papers that describe facility operations, lessons learned in design, construction, and operation, algorithms and their implementations, and techniques, including calibration, that are fundamental elements of instrumentation. The journal focuses on astronomical instrumentation topics in all wavebands (Radio to Gamma-Ray) and includes the disciplines of Heliophysics, Space Weather, Lunar and Planetary Science, Exoplanet Exploration, and Astroparticle Observation (cosmic rays, cosmic neutrinos, etc.). Concepts, designs, components, algorithms, integrated systems, operations, data archiving techniques and lessons learned applicable but not limited to the following platforms are pertinent to this journal. Example topics are listed below each platform, and it is recognized that many of these topics are relevant to multiple platforms. Relevant platforms include: Ground-based observatories[...] Stratospheric aircraft[...] Balloons and suborbital rockets[...] Space-based observatories and systems[...] Landers and rovers, and other planetary-based instrument concepts[...]
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