title: Soft-x-ray damage to p-terphenyl coatings for detectors.
abstract: The organic phosphor p-terphenyl is used as a wavelength-converter coating in some soft-x-ray detectors. We have measured the absolute photoluminescent efficiency of p-terphenyl as a function of incident photon energy from 36 to 191 eV. We have also measured changes in the efficiency caused by soft-x-ray fluence (total photons absorbed per unit area) at several photon energies in this range. We find that efficiency drops rapidly as a function of fluence, with the rate of decrease increasing with higher soft x-ray energies.
authors.forename: E L
authors.initials: EL
authors.lastname: Benitez
authors.forename: M L
authors.initials: ML
authors.lastname: Dark
authors.forename: D E
authors.initials: DE
authors.lastname: Husk
authors.forename: S E
authors.initials: SE
authors.lastname: Schnatterly
authors.forename: C
authors.initials: C
authors.lastname: Tarrio