Diamond-like carbon coatings for cryogenic operation of particle detectors
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2023-02-02 |
| Journal | Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment |
| Authors | S. Leardini, Yi Zhou, Andrea Tesi, M. Morales, D. GonzĂĄlez-DĂaz |
| Institutions | Universidade de Santiago de Compostela, Weizmann Institute of Science |
| Citations | 9 |
Abstract
Section titled âAbstractâCharacterization of diamond-like carbon (DLC) coatings at cryogenic temperatures (down to 77 K) is presented, covering the electrical resistivity range of practical interest to gaseous and liquid particle instrumentation: [âŚ]. The good behaviour observed in terms of linearity, surface uniformity and stability with time and transported charge add to other well-known characteristics like low chemical reactivity and tolerance to radiation. The observed temperature dependence and stability of electrical properties with transported charge is consistent with a conductivity mechanism based on 2-dimensional variable-range electron hopping, as expected for the surface conductivity of thin films made from amorphous carbon. First results from a resistive-protected WELL detector (âRWELLâ) built with DLC and operated close to the liquid-vapour coexistence point of argon (87.5 K at 1 bar) are presented