The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes
For cosmic microwave background (CMB) polarization observations, calibration of detector polarization angles is essential. We have developed a fully remote controlled calibration system with a sparse wire grid that reflects linearly polarized light along the wire direction. The new feature is a remo...
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| creator | Murata, Masaaki Nakata, Hironobu Iijima, Kengo Adachi, Shunsuke Seino, Yudai Kiuchi, Kenji Matsuda, Frederick Randall, Michael J Arnold, Kam Galitzki, Nicholas Johnson, Bradley R Keating, Brian Kusaka, Akito Lloyd, John B Seibert, Joseph Silva-Feaver, Maximiliano Tajima, Osamu Terasaki, Tomoki Yamada, Kyohei |
| description | For cosmic microwave background (CMB) polarization observations, calibration of detector polarization angles is essential. We have developed a fully remote controlled calibration system with a sparse wire grid that reflects linearly polarized light along the wire direction. The new feature is a remote-controlled system for regular calibration, which has not been possible in sparse wire grid calibrators in past experiments. The remote control can be achieved by two electric linear actuators that load or unload the sparse wire grid into a position centered on the optical axis of a telescope between the calibration time and CMB observation. Furthermore, the sparse wire grid can be rotated by a motor. A rotary encoder and a gravity sensor are installed on the sparse wire grid to monitor the wire direction. They allow us to achieve detector angle calibration with expected systematic error of \(0.08^{\circ}\). The calibration system will be installed in small-aperture telescopes at Simons Observatory. |
| doi_str_mv | 10.48550/arxiv.2309.02035 |
| format | Article |
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We have developed a fully remote controlled calibration system with a sparse wire grid that reflects linearly polarized light along the wire direction. The new feature is a remote-controlled system for regular calibration, which has not been possible in sparse wire grid calibrators in past experiments. The remote control can be achieved by two electric linear actuators that load or unload the sparse wire grid into a position centered on the optical axis of a telescope between the calibration time and CMB observation. Furthermore, the sparse wire grid can be rotated by a motor. A rotary encoder and a gravity sensor are installed on the sparse wire grid to monitor the wire direction. They allow us to achieve detector angle calibration with expected systematic error of \(0.08^{\circ}\). The calibration system will be installed in small-aperture telescopes at Simons Observatory.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2309.02035</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Actuators ; Calibration ; Coders ; Cosmic microwave background ; Linear polarization ; Observatories ; Physics - Instrumentation and Methods for Astrophysics ; Polarized light ; Remote control ; Shaft encoders ; Systematic errors ; Telescopes ; Wire</subject><ispartof>arXiv.org, 2023-09</ispartof><rights>2023. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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The calibration system will be installed in small-aperture telescopes at Simons Observatory.</description><subject>Actuators</subject><subject>Calibration</subject><subject>Coders</subject><subject>Cosmic microwave background</subject><subject>Linear polarization</subject><subject>Observatories</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Polarized light</subject><subject>Remote control</subject><subject>Shaft encoders</subject><subject>Systematic errors</subject><subject>Telescopes</subject><subject>Wire</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><sourceid>GOX</sourceid><recordid>eNotkMtqwzAQRUWh0JDmA7rqQNdOZcmy7O5C6AsCWTR7I8tyotS23JGcNF_Q366bdDEMA2cul0PIXUznSSYEfVT4bQ9zxmk-p4xycUUmjPM4yhLGbsjM-z2llKWSCcEn5GezM_BhW9d5WJfe4EEFh6cnWEA9NM0J0LQuGNCuC-iaxlSgVWNLVMG6DvzJB9PC0YYdKPC9Qm_GCw1s0VZQOxw_fWs1jIPuqA4GSqU_t-iGroJgGuO1642_Jde1aryZ_e8p2bw8b5Zv0Wr9-r5crCKVCxHFlGVJnCaZzPK81lymVZqXSsk85UxKkZQZFSnXFVVUlgk1seJaZFXJcylGjk_J_SX2bKno0bYKT8WfreJsayQeLkSP7mswPhR7N2A3dipYlsaCShEL_gvO228A</recordid><startdate>20230905</startdate><enddate>20230905</enddate><creator>Murata, Masaaki</creator><creator>Nakata, Hironobu</creator><creator>Iijima, Kengo</creator><creator>Adachi, Shunsuke</creator><creator>Seino, Yudai</creator><creator>Kiuchi, Kenji</creator><creator>Matsuda, Frederick</creator><creator>Randall, Michael J</creator><creator>Arnold, Kam</creator><creator>Galitzki, Nicholas</creator><creator>Johnson, Bradley R</creator><creator>Keating, Brian</creator><creator>Kusaka, Akito</creator><creator>Lloyd, John B</creator><creator>Seibert, Joseph</creator><creator>Silva-Feaver, Maximiliano</creator><creator>Tajima, Osamu</creator><creator>Terasaki, Tomoki</creator><creator>Yamada, Kyohei</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20230905</creationdate><title>The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes</title><author>Murata, Masaaki ; Nakata, Hironobu ; Iijima, Kengo ; Adachi, Shunsuke ; Seino, Yudai ; Kiuchi, Kenji ; Matsuda, Frederick ; Randall, Michael J ; Arnold, Kam ; Galitzki, Nicholas ; Johnson, Bradley R ; Keating, Brian ; Kusaka, Akito ; Lloyd, John B ; Seibert, Joseph ; Silva-Feaver, Maximiliano ; Tajima, Osamu ; Terasaki, Tomoki ; Yamada, Kyohei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a955-1028416487899fc376d69baa796327754b80563cd0a07b40e1a3c58db3975baa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Actuators</topic><topic>Calibration</topic><topic>Coders</topic><topic>Cosmic microwave background</topic><topic>Linear polarization</topic><topic>Observatories</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Polarized light</topic><topic>Remote control</topic><topic>Shaft encoders</topic><topic>Systematic errors</topic><topic>Telescopes</topic><topic>Wire</topic><toplevel>online_resources</toplevel><creatorcontrib>Murata, Masaaki</creatorcontrib><creatorcontrib>Nakata, Hironobu</creatorcontrib><creatorcontrib>Iijima, Kengo</creatorcontrib><creatorcontrib>Adachi, Shunsuke</creatorcontrib><creatorcontrib>Seino, Yudai</creatorcontrib><creatorcontrib>Kiuchi, Kenji</creatorcontrib><creatorcontrib>Matsuda, Frederick</creatorcontrib><creatorcontrib>Randall, Michael J</creatorcontrib><creatorcontrib>Arnold, Kam</creatorcontrib><creatorcontrib>Galitzki, Nicholas</creatorcontrib><creatorcontrib>Johnson, Bradley R</creatorcontrib><creatorcontrib>Keating, Brian</creatorcontrib><creatorcontrib>Kusaka, Akito</creatorcontrib><creatorcontrib>Lloyd, John B</creatorcontrib><creatorcontrib>Seibert, Joseph</creatorcontrib><creatorcontrib>Silva-Feaver, Maximiliano</creatorcontrib><creatorcontrib>Tajima, Osamu</creatorcontrib><creatorcontrib>Terasaki, Tomoki</creatorcontrib><creatorcontrib>Yamada, Kyohei</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Murata, Masaaki</au><au>Nakata, Hironobu</au><au>Iijima, Kengo</au><au>Adachi, Shunsuke</au><au>Seino, Yudai</au><au>Kiuchi, Kenji</au><au>Matsuda, Frederick</au><au>Randall, Michael J</au><au>Arnold, Kam</au><au>Galitzki, Nicholas</au><au>Johnson, Bradley R</au><au>Keating, Brian</au><au>Kusaka, Akito</au><au>Lloyd, John B</au><au>Seibert, Joseph</au><au>Silva-Feaver, Maximiliano</au><au>Tajima, Osamu</au><au>Terasaki, Tomoki</au><au>Yamada, Kyohei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes</atitle><jtitle>arXiv.org</jtitle><date>2023-09-05</date><risdate>2023</risdate><eissn>2331-8422</eissn><abstract>For cosmic microwave background (CMB) polarization observations, calibration of detector polarization angles is essential. 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| subjects | Actuators Calibration Coders Cosmic microwave background Linear polarization Observatories Physics - Instrumentation and Methods for Astrophysics Polarized light Remote control Shaft encoders Systematic errors Telescopes Wire |
| title | The Simons Observatory: A fully remote controlled calibration system with a sparse wire grid for cosmic microwave background telescopes |
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