Analysis of a High Efficiency 4K GM Refrigerator Operating at a Lower Pressure Ratio
Development of a High Efficiency 4 K GM Refrigerator
Analysis of a High Efficiency 4 K GM Refrigerator Operating at a Lower Pressure Ratio
Performance Dependence of a 4 K Pulse Tube Cryocooler on Working Pressure
Conceptual Design of Space Qualified 4 K Pulse Tube Cryocooler
A 4 K G-M Refrigerator for Direct Cooling of a 6 T NbTi Superconducting Magnet System
Two-Stage Pulse Tube Refrigerator for 20 K Operation