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.

© 1994 Optical Society of America

Measured conversion efficiencies of P45, paraterphenyl, tetraphenyl butadiene, and sodium salicylate phosphors in the soft-x-ray wavelength range

S. P. Regan, L. K. Huang, M. J. May, H. W. Moos, D. Stutman, S. Kovnovich, and M. Finkenthal
Appl. Opt. 33(16) 3595-3599 (1994)

Absolute photoluminescent efficiency and photon damage of sodium salicylate in the soft-x-ray regime

D. E. Husk, C. Tarrio, E. L. Benitez, and S. E. Schnatterly
J. Opt. Soc. Am. B 9(1) 152-156 (1992)

Vacuum ultraviolet scintillators: sodium salicylate and p-terphenyl

Vijay Kumar and A. K. Datta
Appl. Opt. 18(9) 1414-1417 (1979)

Low-radiation-damage multilayer coatings for the soft-x-ray region

W. R. Hunter and J. F. Seely
Appl. Opt. 32(25) 4846-4851 (1993)

Quantum efficiency and linearity of 16 phosphors in the soft-x-ray regime

D. E. Husk and S. E. Schnatterly
J. Opt. Soc. Am. B 9(5) 660-663 (1992)