Wavelength Shifters for Water Cherenkov Detectors

Xiongxin Dai; Etienne Rollin; Alain Bellerive; Cliff Hargrove; David Sinclair; Cathy Mifflin; Feng Zhang

doi:10.1016/j.nima.2008.01.101

Wavelength Shifters for Water Cherenkov Detectors

Instrumentation and Detectors 2008-11-26 v1 Optics

Authors: Xiongxin Dai , Etienne Rollin , Alain Bellerive , Cliff Hargrove , David Sinclair , Cathy Mifflin , Feng Zhang

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Abstract

The light yield of a water-based Cherenkov detector can be significantly improved by adding a wavelength shifter. Wavelength shifter (WLS) molecules absorb ultraviolet photons and re-emit them at longer wavelengths where typical photomultiplier tubes are more sensitive. In this study, several wavelength shifter compounds are tested for possible deployment in the Sudbury Neutrino Observatory (SNO). Test results on optical properties and chemical compatibility for a few WLS candidates are reported; together with timing and gain measurements. A Monte Carlo simulation of the SNO detector response is used to estimate the total light gain with WLS. Finally, a cosmic ray Cherenkov detector was built to investigate the optical properties of WLS.

Keywords

imaging atmospheric cherenkov telescopes

Cite

@article{arxiv.0807.2895,
  title  = {Wavelength Shifters for Water Cherenkov Detectors},
  author = {Xiongxin Dai and Etienne Rollin and Alain Bellerive and Cliff Hargrove and David Sinclair and Cathy Mifflin and Feng Zhang},
  journal= {arXiv preprint arXiv:0807.2895},
  year   = {2008}
}

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13 pages, 3 figures

Wavelength Shifters for Water Cherenkov Detectors

Abstract

Keywords

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