Duc Vo

TL;DR: This work demonstrates a thin-film x-ray detector comprised with highly crystalline two-dimensional Ruddlesden-Popper phase layered perovskites fabricated in a fully depleted p-i-n architecture that shows high diode resistivity leading to a high x-rays detecting sensitivity up to 0.276 C Gyair−1 cm−3.

Abstract: The authors present a prototype for a high-energy-resolution, high-count-rate, gamma-ray spectrometer intended for nuclear forensics and international nuclear safeguards. The prototype spectrometer is an array of 14 transition-edge-sensor microcalorimeters with an average energy resolution of 47eV (full width at half maximum) at 103keV. The resolution of the best pixel is 25eV. A cryogenic, time-division multiplexer reads out the array. Several important topics related to microcalorimeter arrays are discussed, including cross-talk, the uniformity of detector bias conditions, fabrication of the arrays, and the multiplexed readout. The measurements and calculations demonstrate that a kilopixel array of high-resolution microcalorimeters is feasible.

TL;DR: In this article, the effect of chlorine incorporation on the optical and electronic prop- erties, structural stability, ion-migration as well as the γ-ray radiation detection ability of MAPbBr 3-x Cl x was investigated.

TL;DR: In this article, the authors discuss recent developments in using cryogenic microcalorimeter detectors for x-ray and gamma-ray spectroscopy, and present preliminary calibration data from this chip, and a high-statistics multiplexed 21-pixel spectrum of the Pu X-ray region.

TL;DR: The Next Generation Safeguards Initiative (NGSI) -Spent Fuel (SF) project as discussed by the authors has developed a set of measurement campaigns at the Central Interim Storage Facility for Spent Nuclear Fuel (Clab), in collaboration with Swedish Nuclear Fuel and Waste Management Company (SKB).