- Date: Tuesday 02.12.2024, 4:00 p.m.
- Room: MW 1501 (5505.01.501)
- Presenter: Jonas W. Mügge
- Title: Structural design of the SPICE X-ray detector for space
Abstract:
The Small Pixel CCD Experiment (SPICE) at the Max Planck Institute for Extraterrestrial Physics (MPE) aims to create a detector module for the next generation of X-ray telescopes. This involves a CCD sensor with a higher array size than ever before, increasing the heat density of the detector module.
A principle challenge is to thermally separate the cold sensor (-100°C), from the warm front-end electronics (20°C). The design of this “thermal suspension” must exhibit both a high degree of thermal separation while remaining sufficiently stiff to prevent damage to the detector and its electronics during the high vibration loads of a rocket launch.
Due to the difficulty of finding an analytic solution, 5 different mechanical concepts were designed, based on different materials, geometries, and rationales. These were simulated using Nastran for their thermal and vibrational performance to evaluate their strengths and weaknesses. The final chosen design, which allows for iterative eigenmode tuning, is presented and discussed.