The influence of Xe doping on LKr scintillations

doi:10.1016/0168-9002(93)90317-B

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 332, Issue 3, 15 August 1993, Pages 575-576

https://doi.org/10.1016/0168-9002(93)90317-B Get rights and content

Abstract

The influence of 1.7–5.3% Xe doping on LKr scintillation decay times is observed. The decay times of τ₁ = 8.7±0.6 ns, gt₂ = 29±

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Scintillation from liquid rare gases has a fast decay component with a high photon yield which is comparable to that of NaI(Tl), although the wavelength is in the vacuum ultraviolet. On the basis of these properties, many investigators have tried to realize liquid rare gas scintillation detector. In particular, liquid Xe is expected to be an excellent detector medium for γ-rays because of its fast response, its large atomic number, and high density. However, it is very difficult to achieve sufficient light collection as scintillator, because the light emission are in vacuum ultraviolet. Recently, some groups have reported liquid Xe/Kr homogeneous scintillation calorimeters for high-energy γ-rays using reflectors method, but their energy resolution was not as high as expected. In this situation it seems that the realization of liquid rare gas detectors may not be easy. In this paper, we review the physical properties of scintillation from liquid rare gas, the scintillation yields, the decay time constants and attenuation lengths. We summarize the results obtained with liquid rare gas scintillation detector. The present status of development of liquid Kr/Xe homogeneous scintillation calorimeters by using reflected light is described. A new device which observes only direct light is proposed as high-energy γ-ray detector or homogeneous electromagnetic shower calorimeters for γ-rays.
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Letter to the EditorThe influence of Xe doping on LKr scintillations

Abstract

Nucl. Instr. and Meth.

Phys. Rev.

Letter to the Editor
The influence of Xe doping on LKr scintillations