Ultra-low noise TES bolometer arrays for the US SAFARI contribution
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X(2020)
摘要
We are developing ultra-low noise transition edge sensor (TES) bolometer arrays for the long-wavelength grating spectrometer modules of SAFARI, part of the cryogenically-cooled SPICA mission now in phase-A study in Europe. These devices target a per-pixel noise equivalent power (NEP) below 10^-19 WHz^-1/2 with a time-constant faster than 10ms. The SAFARI focal planes will be cooled to 50 mK, and we use a 100 mK thermistor formed from an annealed Titanium-Gold bilayer film. To minimize excess heat capacity, we have developed a new wet-release process which provides high yield in large (~250-pixel) sub-arrays. We will report on the fabrication, testing, and achieved performance of these detectors.
We will also present the focal plane assembly designed to support the 5 (spatial) x 180 (spectral) format coupled to spectrometers thru multimodes horns. The focal plane is composed of four monolithic sub-arrays with integrated backshorts, all integrated onto a large silicon substrate.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要