High-speed ultraviolet and x-ray-sensitive InP photoconductive detectors

Abstract
The performance of iron-doped InP photoconductive detectors in the optical and x-ray spectral regions is compared. The detectors show uniform, high cw quantum efficiency from 900 to 200 nm. Pulse response times at 193 nm are laser source limited to ⩽12 ns. The response to ∼9-keV-fast x-ray pulses indicates device rise times <90 ps.