Large-area sub-millimeter resolution CdZnTe strip detector for astronomy
We report performance measurements of a sub-millimeter resolution CdZnTe strip detector developed as a prototype for astronomical instruments. The prototype is a 1.4 mm thick, 64 × 64 stripe CdZnTe array with 0.375 mm pitch in both dimensions. Pulse height spectra in orthogonal stripe coincidence mode were recorded at several energies. The room-temperature energy resolutions is <10 keV (FWHM) for 122 keV photons with a peak-to-valley ratio >5:1. We also demonstrate spatial resolution capabilities finer than the stripe pitch.
Digital Object Identifier (DOI)
J. R. Macri, B. A. Apotovsky, J. F. Butler, M. L. Cherry, B. K. Dann, F. P. Doty, T. G. Guzik, M. L. McConnell, and J. M. Ryan, ‘Large-area sub-millimeter resolution CdZnTe strip detector for astronomy’, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 380, no. 1–2, pp. 490–492, Oct. 1996.