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Title: A sensitive Faraday rotation setup using triple modulation

Abstract

The utilization of polarized targets in scattering experiments has become a common practice in many major accelerator laboratories. Noble gases are especially suitable for such applications, since they can be easily hyper-polarized using spin exchange or metastable pumping techniques. Polarized helium-3 is a very popular target because it often serves as an effective polarized neutron due to its simple nuclear structure. A favorite cell material to generate and store polarized helium-3 is GE-180, a relatively dense aluminosilicate glass. In this paper, we present a Faraday rotation method, using a new triple modulation technique, where the measurement of the Verdet constants of SF57 flint glass, pyrex glass, and air was tested. The sensitivity obtained shows that this technique may be implemented in future cell wall characterization and thickness measurements. We also discuss the first ever extraction of the Verdet constant of GE-180 glass for four wavelength values of 632 nm, 773 nm, 1500 nm, and 1547 nm, whereupon the expected 1/λ{sup 2} dependence was observed.

Authors:
; ; ;  [1]
  1. Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506 (United States)
Publication Date:
OSTI Identifier:
22482698
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 86; Journal Issue: 7; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AIR; CELL WALL; FARADAY EFFECT; HELIUM 3; MODULATION; NEUTRONS; POLARIZED TARGETS; RARE GASES; SENSITIVITY; SPIN EXCHANGE; WAVELENGTHS

Citation Formats

Phelps, G., Abney, J., Broering, M., and Korsch, W. A sensitive Faraday rotation setup using triple modulation. United States: N. p., 2015. Web. doi:10.1063/1.4926459.
Phelps, G., Abney, J., Broering, M., & Korsch, W. A sensitive Faraday rotation setup using triple modulation. United States. https://doi.org/10.1063/1.4926459
Phelps, G., Abney, J., Broering, M., and Korsch, W. 2015. "A sensitive Faraday rotation setup using triple modulation". United States. https://doi.org/10.1063/1.4926459.
@article{osti_22482698,
title = {A sensitive Faraday rotation setup using triple modulation},
author = {Phelps, G. and Abney, J. and Broering, M. and Korsch, W.},
abstractNote = {The utilization of polarized targets in scattering experiments has become a common practice in many major accelerator laboratories. Noble gases are especially suitable for such applications, since they can be easily hyper-polarized using spin exchange or metastable pumping techniques. Polarized helium-3 is a very popular target because it often serves as an effective polarized neutron due to its simple nuclear structure. A favorite cell material to generate and store polarized helium-3 is GE-180, a relatively dense aluminosilicate glass. In this paper, we present a Faraday rotation method, using a new triple modulation technique, where the measurement of the Verdet constants of SF57 flint glass, pyrex glass, and air was tested. The sensitivity obtained shows that this technique may be implemented in future cell wall characterization and thickness measurements. We also discuss the first ever extraction of the Verdet constant of GE-180 glass for four wavelength values of 632 nm, 773 nm, 1500 nm, and 1547 nm, whereupon the expected 1/λ{sup 2} dependence was observed.},
doi = {10.1063/1.4926459},
url = {https://www.osti.gov/biblio/22482698}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 7,
volume = 86,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2015},
month = {Wed Jul 15 00:00:00 EDT 2015}
}