Very high quantum efficiency fast light sensors for cosmic ray detectors.

Details Very high quantum efficiency fast light sensors for cosmic ray detectors. Very high quantum efficiency fast light sensors for cosmic ray detectors.

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999nuphs..75..356m&link_type=abstract

Nuclear Physics B, Proc. Suppl., Vol. 75A, p. 356 - 358

Physics

Nuclear Physics

Cosmic Rays: Detectors

Scientific paper

Low level light (LLL) sensors are widely used in cosmic ray detectors. Common LLL sensors are the classical photomultiplier tubes (PMT), which provide a peak quantum efficiency (QE) of 20-25% in the wavelength range ≡320 - 420 nm. The authors discuss recent progress in the field of hybrid PMTs applying GaAsP photocathodes, which provide a QE of ≡45% in the wavelength range 500 - 600 nm and a significantly better amplitude resolution compared to classical PMTs. By application of wavelength shifting technique (WLS) their QE can be enhanced close to the maximum level also in the blue and near ultraviolet parts of the spectrum.

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