Small-sized cryostatic device for photodetectors

Details Small-sized cryostatic device for photodetectors Small-sized cryostatic device for photodetectors

1983-07-08

1984-12-11

Capossela, Ronald C.

Refrigeration

Refrigeration producer

Evaporator, e.g., heat exchanger

250332, F25B 1900

Patent

active

044870370

ABSTRACT:
A small size e.g. 12 mm diameter by 40 mm long cryostatic device with photodetectors. A hollow finger having the photodetectors at one end is adapted to be brought to a very low temperature by a cold fluid circulating in the finger. A wall or housing surrounds finger and provides a vaccuum space surrounding the finger. A window made from a material transparent to the radiation to be detected forms part of the wall and faces the detector. The cold finger is made from a ceramic material which is either a tight ceramic or a sealed ceramic which has low thermal conductivity.

REFERENCES:
patent: 3080542 (1963-03-01), Long
patent: 3259865 (1966-07-01), Lederhandlor et al.
patent: 3358463 (1967-12-01), Hawkins et al.
patent: 3611746 (1971-10-01), Marsing et al.
patent: 3851173 (1974-11-01), Taylor et al.
patent: 4118947 (1978-10-01), Diedrich et al.
patent: 4325530 (1982-04-01), Niemann et al.
patent: 4340405 (1982-07-01), Steyert, Jr. et al.
W. Fastowski et al.: "Kryotechnik" 1970, Akademie-Verlag, Berlin (DE) Chapitre 7.3, Kryostaten, pp. 312-321.

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