The Mexico UK Sub-mm Camera for Astronomy (MUSCAT) on-sky commissioning: performance of the cryogenic systems
The Mexico UK Sub-mm Camera for Astronomy (MUSCAT) on-sky commissioning: performance of the cryogenic systems
复制标题
墨西哥英国亚毫米天文学相机 (MUSCAT) 空中调试:低温系统的性能
DOI:
10.1117/12.2630071
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Brien T
中科院分区:
文献类型:
--
作者:
Brien T
MUSCAT is a new 1.1 mm band receiver which was installed on the 50 m Large Millimeter Telescope atop Volc´an Sierra Negra in Puebla, Mexico during the final quarter of 2021 and commissioned on sky throughout 2022. MUSCAT uses a novel cooling chain consisting of a commercial pulse tube cooler, two thermal stages of passively-switched continuous sorption coolers, and a final miniature dilution refrigerator. Through this system MUSCAT achieves a continuous temperature of 120 mK at the focal plane and has shown continuous operation at this temperature for greater than 100 days during readiness testing. Through minimising the amount of helium-3 required, the design on MUSCAT’s cryogenic systems produced a reliable, cost-effective cooling platform. Here we present the cryogenic design and performance of MUSCAT on-sky and compare this to that achieved during deployment-readiness testing at Cardiff (UK). We consider both cooldown time and achieved base temperature. We look at the impact on operation of relocating a pulse-tube cooled instrument from a development lab running on a 50 Hz mains electricity supply to a site running at 60 Hz. Finally, we describe the process of preparing the MUSCAT instrument for shipping and assess the success of this process in terms of remedial work required upon arrival.
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影响因子:
2
作者:
Castillo-Dominguez E
通讯作者:
Castillo-Dominguez E
影响因子:
2
作者:
Shirokoff, E.;Barry, P. S.;Zmuidzinas, J.
通讯作者:
Zmuidzinas, J.
DOI:
--
发表时间:
2018
期刊:
ArXiv e-prints
影响因子:
--
作者:
Brien T. L. R.
通讯作者:
Brien T. L. R.
影响因子:
3.5
作者:
S. Eales;L. Dunne;D. Clements;A. Cooray;G. Zotti;S. Dye;R. Ivison;M. Jarvis;G. Lagache
通讯作者:
S. Eales;L. Dunne;D. Clements;A. Cooray;G. Zotti;S. Dye;R. Ivison;M. Jarvis;G. Lagache
DOI:
10.1117/12.2313347
发表时间:
2018
期刊:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
影响因子:
--
作者:
G. Wilson;P. Ade;I. Aretxaga;J. Austermann;J. Bardin;P. Barry;J. Beall;M. Berthoud;Alan Braeley;S. Bryan;Alexandra Burkott;John Bussan;E. Castillo;M. Chavez;N. DeNigris;S. Doyle;M. Eiben;D. Ferrusca;L. Fissel;Jiansong Gao;W. Gear;V. Gómez;S. Gordon;C. Groppi;R. Gutermuth;M. Heyer;Stephen Kuczarski;Mohsen Hosseini;S. Offner;A. Pope;F. Schloerb;K. Souccar;Yuping Tang;G. Wallace;M. Yun;P. Mauskopf;R. Kelso;J. Knapp;E. Lunde;H. Mani;Justin Mathewson;E. Scannapieco;M. Underhill;J. Hubmayr;M. Vissers;D. Hughes;Ivan Rodriguez Montoya;D. Sánchez;M. Velázquez;S. Ventura;E. Pascale;S. Rowe;C. Tucker;G. Novak;J. McMahon;S. Simon
通讯作者:
S. Simon