Recent development status of compact 2 K GM cryocoolers. Issue 1 (November 2015)

• Record Type: Journal Article
• Authors: Bao, Q; Xu, M Y; Tsuchiya, A; Li, R
• Is Part Of: IOP conference series. Volume 101:Issue 1(2015)
• Publication Date: 2015-11
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/101/1/012136
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: To meet the growing demand for a compact cooling solution for superconducting electronic devices, we developed a two-stage 2 K GM cryocooler and a cryostat system, which can reach 46.3 K / 2.2 K on the first and second stages under no-load conditions. Nevertheless, with several innovative technologies applied, the total length of the expander cylinder is reduced to under 70% of the smallest conventional 4 K GM cryocooler. In this paper we will present the design method, including material selection and structure design with detailed explanation, which has been confirmed by both simulation and experiment.