An optimised thin film wavelength shifting coating for Cherenkov detection

Manuel Grande*, Gary R. Moss

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Investigations of an appropriate thin film wavelength shifting (WLS) coatings for Cherenkov radiation detection are reported. A number of dyes were investigated and an optimum coating arrived at. This consists of 0.175 mg/cm2 of p-terphenyl, 0.095 mg/cm2 of bis-MSB and 16 mg of acrylic matrix (Paraloid B 72) for coating on a perspex substrate. Coating over Pilot 425 is best done with a bis-MSB grammage reduced to 0.052 mg/cm2. These coatings gave an average quantum efficiency of 91% of that a quartz window PM tube over a wavelength interval of 200-400 nm. A number of hints on the techniques of utilising thin film WLS coatings are also included.

Original languageEnglish
Pages (from-to)539-548
Number of pages10
JournalNuclear Instruments and Methods In Physics Research
Issue number3
Publication statusPublished - 01 Oct 1983


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