Article: Evaluation of heat transfer characteristics in cryogenic stage depending on the shape and material Journal: International Journal of Nanotechnology (IJNT) 2025 Vol.22 No.1 pp.50 - 57 Abstract: The heat transfer characteristics in cryogenic environments are critical in various fields such as semiconductors, aerospace, and superconducting applications. Minimising heat loss and ensuring efficient cooling performance are essential in cryogenic systems, necessitating the optimal design of the stage in terms of shape and material. In particular, maintaining temperature uniformity and reliability is crucial in experimental apparatus and precision equipment, requiring careful consideration of thermal shielding and conduction properties. This study aims to identify the optimal stage shape and material for effective heat transfer in cryogenic environments. Three stage designs and two materials were analysed through experiments. The experimental setup incorporated a cryocooler as the cooling source, along with multi-layer insulation (MLI) and a thermal link to reduce heat invasion and enhance thermal conduction. Temperature distribution and thermal performance were evaluated to identify the most efficient stage configuration. This study provides fundamental insights for optimising the thermal design of cryogenic stages and contributes to the advancement of cryogenic system performance. Inderscience Publishers - linking academia, business and industry through research

Title: Evaluation of heat transfer characteristics in cryogenic stage depending on the shape and material

Authors: Myung Su Kim; Yojong Choi; Seunghyun Song; Yeon Suk Choi

Addresses: Division of Scientific Instrument, Korea Basic Science Institute, Gwahakro 169-148, Yuseong-gu, Daejeon, 34133, South Korea ' Division of Scientific Instrument, Korea Basic Science Institute, Gwahakro 169-148, Yuseong-gu, Daejeon, 34133, South Korea ' Division of Scientific Instrument, Korea Basic Science Institute, Gwahakro 169-148, Yuseong-gu, Daejeon, 34133, South Korea ' Division of Scientific Instrument, Korea Basic Science Institute, Gwahakro 169-148, Yuseong-gu, Daejeon, 34133, South Korea

Abstract: The heat transfer characteristics in cryogenic environments are critical in various fields such as semiconductors, aerospace, and superconducting applications. Minimising heat loss and ensuring efficient cooling performance are essential in cryogenic systems, necessitating the optimal design of the stage in terms of shape and material. In particular, maintaining temperature uniformity and reliability is crucial in experimental apparatus and precision equipment, requiring careful consideration of thermal shielding and conduction properties. This study aims to identify the optimal stage shape and material for effective heat transfer in cryogenic environments. Three stage designs and two materials were analysed through experiments. The experimental setup incorporated a cryocooler as the cooling source, along with multi-layer insulation (MLI) and a thermal link to reduce heat invasion and enhance thermal conduction. Temperature distribution and thermal performance were evaluated to identify the most efficient stage configuration. This study provides fundamental insights for optimising the thermal design of cryogenic stages and contributes to the advancement of cryogenic system performance.

Keywords: cryogenic stage; cryocooler; conduction-cooling; heat transfer; cryogenic environment; thermal link; thermal conductivity; temperature distribution.

DOI: 10.1504/IJNT.2025.152231

International Journal of Nanotechnology, 2025 Vol.22 No.1, pp.50 - 57

Published online: 11 Mar 2026 *

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Title: Evaluation of heat transfer characteristics in cryogenic stage depending on the shape and material

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