| Developing cold-resistant high-adhesive electronic substrate for WIMPs detectors at CDEX |
| |
| 作者姓名： | 刘圆圆 程建平 庞盼 廖斌 吴彬 英敏菊 张丰收 陈琳 吕沙沙 刘言东 孙天希 |
| |
| 作者单位： | Key Laboratory of Beam Technology of Ministry of Education;Beijing Radiation Center |
| |
| 基金项目： | Project supported by the Central University Basic Scientific Research Business Expenses Special Funds under the project name of Research on Applied Physics under Low Radiation Background(Grant No.2018NTST07);the National Natural Science Foundation Joint Fund Key Project,China(Grant No.U1865206)。 |
| |
| 摘 要： | Herein we report a prototypical electronic substrate specifically designed to serve the weakly interacting massive particles(WIMPs)detectors at the China Dark Matter Experiment(CDEX).Because the bulky high-purity germanium(HPGe)detectors operate under liquid-nitrogen temperatures and ultralow radiation backgrounds,the desired electronic substrates must maintain high adhesivity across different layers in such cold environment and be free from any radioactive nuclides.To conquer these challenges,for the first time,we employed polytetrafluoroethylene((C2F4)n)foil as the base substrate,in conjunction with ion implantation and deposition techniques using an independently developed device at Beijing Normal University for surface modification prior to electroplating.The remarkable peeling strengths of 0.88±0.06 N/mm for as-prepared sample and 0.75±0.05 N/mm for that after 2.5-days of soaking inside the liquid nitrogen were observed,while the regular standards commonly require 0.4 N/mm^0.6 N/mm for electronic substrates.
|
| 关 键 词： | WIMPS DETECTOR CDEX surface modification ELECTRONIC SUBSTRATE |
Developing cold-resistant high-adhesive electronic substrate for WIMPs detectors at CDEX |
| |
| Yuanyuan Liu,Jianping Cheng,Pan Pang,Bin Liao,Bin Wu,Minju Ying,Fengshou Zhang,Lin Chen,Shasha Lv,Yandong Liu,Tianxi Sun.Developing cold-resistant high-adhesive electronic substrate for WIMPs detectors at CDEX[J].Chinese Physics B,2020(4):72-76. |
| |
| Authors: | Yuanyuan Liu Jianping Cheng Pan Pang Bin Liao Bin Wu Minju Ying Fengshou Zhang Lin Chen Shasha Lv Yandong Liu Tianxi Sun |
| |
| Affiliation: | (Key Laboratory of Beam Technology of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Beijing Radiation Center,Beijing 100875,China) |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 等数据库收录！ |
