Eliminating the non-Gaussian spectral response of X-ray absorbers for transition-edge sensors
Daikang Yan, Ralu Divan, Lisa M. Gades, Peter Kenesei, Timothy J. Madden, Antonino Miceli, Jun-Sang Park, Umeshkumar M. Patel, Orlando Quaranta, Hemant Sharma, … 展开作者
Daikang Yan, Ralu Divan, Lisa M. Gades, Peter Kenesei, Timothy J. Madden, Antonino Miceli, Jun-Sang Park, Umeshkumar M. Patel, Orlando Quaranta, Hemant Sharma, Douglas A. Bennett, William B. Doriese, Joseph W. Fowler, Johnathon Gard, James Hays-Wehle, Kelsey M. Morgan, Daniel R. Schmidt, Daniel S. Swetz, Joel N. Ullom
Transition-edge sensors (TES) as microcalorimeters for high-energy-resolution X-ray spectroscopy are often fabricated with an absorber made of materials with high Z (for X-ray stopping power) and low heat capacity (for high resolving power). Bismuth represents one of the most compelling options. TESs with evaporated bismuth absorbers have shown spectra with undesirable and unexplained low-energy tails. We have developed TESs with electroplated bismuth absorbers over a gold layer that are not afflicted by this problem and that retain the other positive aspects of this material. To better understand these phenomena, we have studied a series of TESs with gold, gold/evaporated bismuth, and gold/electroplated bismuth absorbers, fabricated on the same die with identical thermal coupling. We show that bismuth morphology is linked to the spectral response of X-ray TES microcalorimeters.
Temperature-induced hysteretic behavior of resistivity and magnetoresistance of electrodeposited bismuth films for X- ray transition-edge sensor absorbers
The relative interfacial thermal contraction as a possible origin of the low-energy excess in cryogenic calorimeters
Max Planck Institute for Physics（马克斯·普朗克物理研究所）；Marietta Blau Institute for Particle Physics of the Austrian Academy of Sciences（奥地利科学院玛丽埃塔·布劳粒子物理研究所）；Humboldt-Universität zu Berlin（柏林洪堡大学）
国际大型探测器（International Large Detector，ILD）是国际直线对撞机（International Linear Collider，ILC）的探测器。它被设计成通过使用粒子流算法（PFA）来实现出色的射流能量分辨率，该算法依赖于在射流中分离附近粒子的能力。PFA需要高粒度的量热计。ILD电磁量热计（ECAL）是一种具有30个钨吸收层的采样量热计。该ECAL的总厚度约为24 X $_0$，并且它具有1000万至1亿个通道以实现高粒度。硅传感器是ECAL敏感层的候选技术。目前这些传感器的原型有256个5.5 $\times$ 5.5 mm $^2$像素，面积为9 $\times$ 9 cm $^2$。我们还研究了对红外激光的响应，以了解传感器在其边缘和像素读出焊盘之间的响应，以及不同保护环设计的影响。在本文中，我们展示了这些测量的结果，并讨论了未来的工作。
Optimization studies of silicon remoTES cryogenic calorimeters
Max-Planck-Institut für Physik（马克斯·普朗克物理研究所）；Marietta-Blau-Institut für Teilchenphysik（玛丽塔·布劳粒子物理研究所）；Atominstitut, Technische Universität Wien（维也纳工业大学原子研究所）；INFN - Sezione di Roma（意大利国家核物理研究所罗马分部）；Gran Sasso Science Institute（格兰萨索科学研究所）；INFN - Laboratori Nazionali del Gran Sasso（意大利国家核物理研究所格兰萨索国家实验室）
Significant noise improvement in a Kinetic Inductance Phonon-Mediated detector by use of a wideband parametric amplifier
Washington University in St. Louis（圣路易斯华盛顿大学）；SLAC National Accelerator Laboratory（斯坦福直线加速器中心）；California Institute of Technology（加州理工学院）；University of California, Berkeley（加州大学伯克利分校）；Stanford University（斯坦福大学）
