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Emission spectra of the excimers of Ar, Kr, and Xe produced by the passage of 4 MeV protons through the rare gases at a pressure of 53 kPa. Redrawn from Ref. 10.
PMT response as a function of wavelength measured at the SURF III synchrotron at NIST. Also shown are the response functions of the PMT in combination with the , sapphire, and fused silica filters.
Comparison between observed and modeled relative emission through the , sapphire, and fused silica filters to the PMT for 26 kPa with added Ar, Kr, and Xe at a total pressure of 100 kPa.
Left hand scale: photons per neutron reacted for Xe, Kr, and Ar at 80 and 160 kPa with a pressure of 26 kPa and a neutron fluence rate of . The wide horizontal lines indicate the upper and lower limits of the average values taking into consideration random and systematic errors as well as uncertainties in the fraction of photons scattered into the PMT. Right hand scale: observed PMT counts from which the left hand scale is derived. The narrow horizontal lines indicate the upper and lower limits of the average values taking into consideration uncertainties in counting statistics, background, and dark current.
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