Fabrication of mushroom-type gold absorber for transition edge X-ray detectors

23 Jul 2019, 17:45
1h 15m
Piazza Città di Lombardia (Milano)

Piazza Città di Lombardia

Milano

Piazza Città di Lombardia, 1, 20124 Milano MI
Poster Low Temperature Detector fabrication techniques and materials Poster session

Speaker

Prof. Bo Gao (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences)

Description

Absorber is a key element for superconducting transition edge X-ray detectors. We fabricated thick gold absorber with an overhanging structure. A Ti/Au seed layer was made by magnetron-sputtering deposition, and then several micrometers-thick gold absorber was made by electroplating. The resistivity of the gold absorber was determined from four-terminal measurements. The absorber was integrated with a transition edge detector. The heat capacity of the absorber was evaluated from the measurements of the effective time constant of the TES detector.

Less than 5 years of experience since completion of Ph.D N
Student (Ph.D., M.Sc. or B.Sc.) N

Primary authors

Mr Yue Lv (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences) Prof. Bo Gao (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences)

Co-authors

Mr Hubing Wang (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences) Dr Wentao Wu (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences) Mr Jianguo Chen (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences) Prof. Zhen Wang (Shanghai institute of microsystem and information technology, Chinese Academy of Sciences)

Presentation Materials