Citation
Crites, Abigail Tinney (2006) An Investigation of the Cooling Properties of a Sapphire Half-Wave Plate for SPIDER. Senior thesis (Major), California Institute of Technology. doi:10.7907/kpqr-kr27. https://resolver.caltech.edu/CaltechTHESIS:02122018-174544961
Abstract
Specific cryogenic data about the thermal and optical properties of sapphire are required to properly implement the sapphire half-wave plate that will be used to modulate the polarization signal in the next generation of CMB polarimeters. The wave plate must be operated from a base temperature of between 4 and 20 K. Simulations and experiments in a cryostat will determine if the sapphire sample can be radiatively cooled to approximately 20 K when operating from a 4.2K base temperature. These data will be used to design the final wave plate mount and determine how it will be operated.
| Item Type: | Thesis (Senior thesis (Major)) |
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| Subject Keywords: | Physics |
| Degree Grantor: | California Institute of Technology |
| Division: | Physics, Mathematics and Astronomy |
| Major Option: | Physics |
| Thesis Availability: | Withheld |
| Research Advisor(s): |
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| Thesis Committee: |
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| Defense Date: | 1 May 2006 |
| Record Number: | CaltechTHESIS:02122018-174544961 |
| Persistent URL: | https://resolver.caltech.edu/CaltechTHESIS:02122018-174544961 |
| DOI: | 10.7907/kpqr-kr27 |
| Default Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. |
| ID Code: | 10699 |
| Collection: | CaltechTHESIS |
| Deposited By: | Joy Painter |
| Deposited On: | 13 Feb 2018 17:26 |
| Last Modified: | 20 May 2020 19:22 |
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