Significant sub-systems were created and others enhanced providing a platform for an order of magnitude precision increase of the small 4He interval - 23P1→23P2 laser spectroscopy measurement, as well as other helium transitions. These measurements serve as tests of helium theory and quantum electro-dynamics in general. Many improvements to the original experiment are discussed and characterized. In particular, counting speed increased 10x, the signal level was doubled, a novel Doppler shift minimization technique was implemented, a control node re-architecture was realized along with many useful features, and the development environment was updated. An initial 28% precision improvement was achieved also providing a foundation for additional gain via a created smaller and more heavily windowed vacuum cavity and picomotor controls.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc1873802 |
| Date | 12 1900 |
| Creators | Cameron, Garnet |
| Contributors | Shiner, David, Lin, Yaunkun, Perez, Jose, Rostovtsev, Yuri |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | xiii, 141 pages, Text |
| Rights | Public, Cameron, Garnet, Copyright, Copyright is held by the author, unless otherwise noted. All rights Reserved. |
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