sfiAc-m-898 PROPOSED HIGH PERFORMANCE REFRIGERATION CYCLES TO OBTAIN SUPERCONDUCTING OPERATION OF A TWO-MILE LINEAR ACCELERATOR AT 1.85K, 1.425K, OR l.OK
نویسندگان
چکیده
At the start, 1.85K operation seemed reasonable and an all-helium four solution the only one possible. It is still evident that for 1.85K operation, an allhelium four cycle is optimum, not because of lowest capital cost, but due to less pumping power. In a hybrid helium three-helium four refrigerator, the specific power for pumping helium-three is 4.0026 I 3.016 times that of pumping helium four.
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