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Performance, optimization, and latest development of the SRI family of rotary cryocoolers
Author(s): Klemen Dovrtel; Franc Megušar
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Paper Abstract

In this paper the SRI family of Le-tehnika rotary cryocoolers is presented (SRI401, SRI423/SRI421 and SRI474). The Stirling coolers cooling power range starts from 0.25W to 0.75W at 77K with available temperature range from 60K to 150K and are fitted to typical dewar detector sizes and powers supply voltages. The DDCA performance optimizing procedure is presented. The procedure includes cooler steady state performance mapping and optimization and cooldown optimization. The current cryogenic performance status and reliability evaluation method and figures are presented on the existing and new units. The latest improved SRI401 demonstrated MTTF close to 25’000 hours and the test is still on going.

Paper Details

Date Published: 5 May 2017
PDF: 10 pages
Proc. SPIE 10180, Tri-Technology Device Refrigeration (TTDR) II, 101800L (5 May 2017); doi: 10.1117/12.2269315
Show Author Affiliations
Klemen Dovrtel, LE-Tehnika d.o.o. (Slovenia)
Franc Megušar, LE-Tehnika d.o.o. (Slovenia)


Published in SPIE Proceedings Vol. 10180:
Tri-Technology Device Refrigeration (TTDR) II
Richard I. Epstein; Bjørn F. Andresen; Tonny Benschop; Joseph P. Heremans; Sergey V. Riabzev; Mansoor Sheik-Bahae, Editor(s)

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