Persistent Link:
http://hdl.handle.net/10150/579318
Title:
Receiver Selection and Calibration Unit for EHT-SPT (RESCUES)
Author:
Nguyen, Chi Hanh
Issue Date:
2015
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The Event Horizon Telescope (EHT) uses a technique known as Very Long Baseline Interferometry (VLBI) to combine radio telescopes all over the world into the equivalent of an Earth-size mirror. It will directly image the immediate surroundings of Sagittarius A* (Sgr A*), the supermassive black hole (SMBH) at the center of our galaxy. The 10-m South Pole Telescope (SPT) will provide EHT with its longest baselines, which will significantly improve EHT resolution. To prepare SPT for EHT, a VLBI receiver was built with its own optics system. The third mirror in the system requires a removable and repeatable mount that can rotate, while being light and compact with excellent thermal insulation. In addition, the VLBI receiver needs to have a motorized and remotely-controlled thermal calibration system to aid with data analysis. This project, titled Receiver Selection and Calibration Unit for EHT-SPT (RESCUES), presents a mount design that successfully satisfies the listed requirements. Finite Element Analysis (FEA) predicted that RESCUES had high performance with deformation on the scale of μm, which is within the tolerance of the optics system. Physical tests agreed with FEA simulations, confirming RESCUES reliability. RESCUES was installed at the SPT and first light was detected in 2015.
Type:
text; Electronic Thesis
Degree Name:
B.S.
Degree Level:
bachelors
Degree Program:
Honors College; Astronomy
Degree Grantor:
University of Arizona
Advisor:
Marrone, Daniel

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleReceiver Selection and Calibration Unit for EHT-SPT (RESCUES)en_US
dc.creatorNguyen, Chi Hanhen
dc.contributor.authorNguyen, Chi Hanhen
dc.date.issued2015en
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractThe Event Horizon Telescope (EHT) uses a technique known as Very Long Baseline Interferometry (VLBI) to combine radio telescopes all over the world into the equivalent of an Earth-size mirror. It will directly image the immediate surroundings of Sagittarius A* (Sgr A*), the supermassive black hole (SMBH) at the center of our galaxy. The 10-m South Pole Telescope (SPT) will provide EHT with its longest baselines, which will significantly improve EHT resolution. To prepare SPT for EHT, a VLBI receiver was built with its own optics system. The third mirror in the system requires a removable and repeatable mount that can rotate, while being light and compact with excellent thermal insulation. In addition, the VLBI receiver needs to have a motorized and remotely-controlled thermal calibration system to aid with data analysis. This project, titled Receiver Selection and Calibration Unit for EHT-SPT (RESCUES), presents a mount design that successfully satisfies the listed requirements. Finite Element Analysis (FEA) predicted that RESCUES had high performance with deformation on the scale of μm, which is within the tolerance of the optics system. Physical tests agreed with FEA simulations, confirming RESCUES reliability. RESCUES was installed at the SPT and first light was detected in 2015.en
dc.typetexten
dc.typeElectronic Thesisen
thesis.degree.nameB.S.en
thesis.degree.levelbachelorsen
thesis.degree.disciplineHonors Collegeen
thesis.degree.disciplineAstronomyen
thesis.degree.grantorUniversity of Arizonaen
dc.contributor.advisorMarrone, Danielen
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.