| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8175576 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 5 Pages |
Abstract
We detail the design and operation of a compact, discharge light polarimeter for metastability exchange optical pumping of 3He gas near 1Â torr under a low magnetic field. The nuclear polarization of 3He can be discerned from its electron polarization, measured via the circular polarization of 668Â nm discharge light from an RF excitation. This apparatus measures the circular polarization of this very dim discharge light using a nematic liquid crystal wave retarder (LCR) and a high-gain, transimpedance amplified Si photodiode. We outline corrections required in such a measurement and discuss contributions to its systematic error.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
J.D. Maxwell, C.S. Epstein, R.G. Milner,