Title: High-energy characterization of two large-volume multi-element CdZnTe detectors High-energy characterization of two large-volume multi-element CdZnTe detectors

ABSTRACT We present results of experiments to characterize two large-volume, multi-element CdZnTe detectors for gamma-ray spectroscopy at high energy. The first detector consisted of four 1.5 cm ´ 1.5 cm ´ 0.75 cm coplanar grid detectors. The measurements for the four-element design were performed with various configurations. The second detector consisted of eight 1 cm ´ 1 cm ´ 0.5 cm coplanar grid detectors arranged in a 2 ´ 2 ´ 2 array. The high-energy gamma-ray sources included 60 Co(1332), 228 T