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This work is usefull for the the branch of physics and Engineering that involves the study of producing temperatures in the range from practically zero to, say, 125 K and of material behavior at these temperatures. A cryocooler is a refrigeration machine that reaches temperatures below, say, 125 K with a small refrigeration capacity. The objectives of the present work describe the analysis, design and an experimental working model of two stage pulse tube refrigerator. By using the Experiment set-up, cooling Behavior of the refrigeration system and refrigeration power has been investigated....