A versatile, transportable cryostat system for irradiation at liquid helium temperature and measurements by optical spectroscopy in transmission and reflectance in the temperature range from 5 to 470 K is described. The optical window plug can be removed during irradiation in order to avoid coloring of the windows due to scattered particles or bremsstrahlung.
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© 1976 American Institute of Physics.
1976
American Institute of Physics
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