PIXIE仪器多模式测辐射热计的研制
Multimode bolometer development for the PIXIE instrument
摘要：
原始膨胀探测器（PIXIE）是一个探测器级任务概念，旨在测量宇宙微波背景的偏振和绝对强度。在下文中，我们报告了PIXIE的多模偏振敏感测辐射热计的设计、制造和性能，该测辐射热计基于硅热敏电阻。特别是，我们专注于几个最新的进展，在检测器的设计，包括实施的计划，大大提高了内部振动模式的频率的大面积，低质量的光学吸收器结构组成的网格的微加工，离子注入硅线。由于$\sim30$的吸收面积是普朗克所使用的蛛网式测辐射热计的$\sim30$倍，张紧方案使PIXIE测辐射热计能够在航天任务发射时的振动和声学环境中保持稳健。更一般地，它可以用于降低其他类型的低温探测器中的颤噪灵敏度。我们还报告的PIXIE测辐射热计在黑暗的低温环境中的性能。
英文摘要：
The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept designed to measure the polarization and absolute intensity of the cosmic microwave background. In the following, we report on the design, fabrication, and performance of the multimode polarization-sensitive bolometers for PIXIE, which are based on silicon thermistors. In particular we focus on several recent advances in the detector design, including the implementation of a scheme to greatly raise the frequencies of the internal vibrational modes of the large-area, low-mass optical absorber structure consisting of a grid of micromachined, ion-implanted silicon wires. With $\sim30$ times the absorbing area of the spider-web bolometers used by Planck, the tensioning scheme enables the PIXIE bolometers to be robust in the vibrational and acoustic environment at launch of the space mission. More generally, it could be used to reduce microphonic sensitivity in other types of low temperature detectors. We also report on the performance of the PIXIE bolometers in a dark cryogenic environment.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
