Abstract

A closed-cycle mechanical refrigeration system has been adapted to cool photomultipliers automatically. Temperature is adjustable between +5° and −55°C and is stable to within ±0.3°C. An important feature of the design is the flexible connection to the cold box which allows extensive freedom of motion; this freedom is particularly important in astronomy where the cold box is mounted on the end of a telescope. Liquid Freon refrigerants have been used to cool photomultipliers for rocket flights. A brief description of two methods is given.

© 1966 Optical Society of America

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References

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  1. A. T. Young, Appl. Opt. 2, 51 (1963).
    [Crossref]
  2. J. P. Rodman, H. J. Smith, Appl. Opt. 2, 181 (1963).
    [Crossref]
  3. A. D. Althouse, C. H. Turnquist, Modern Refrigeration and Air Conditioning (The Goodheart–Willcox Co., Chicago, 1960).
  4. C. Y. Farkas, P. Varga, J. Sci. Instr. 41, 704 (1964).
    [Crossref]
  5. D. M. Hunten, Can. J. Phys. 31, 681 (1953).
    [Crossref]

1964 (1)

C. Y. Farkas, P. Varga, J. Sci. Instr. 41, 704 (1964).
[Crossref]

1963 (2)

1953 (1)

D. M. Hunten, Can. J. Phys. 31, 681 (1953).
[Crossref]

Althouse, A. D.

A. D. Althouse, C. H. Turnquist, Modern Refrigeration and Air Conditioning (The Goodheart–Willcox Co., Chicago, 1960).

Farkas, C. Y.

C. Y. Farkas, P. Varga, J. Sci. Instr. 41, 704 (1964).
[Crossref]

Hunten, D. M.

D. M. Hunten, Can. J. Phys. 31, 681 (1953).
[Crossref]

Rodman, J. P.

Smith, H. J.

Turnquist, C. H.

A. D. Althouse, C. H. Turnquist, Modern Refrigeration and Air Conditioning (The Goodheart–Willcox Co., Chicago, 1960).

Varga, P.

C. Y. Farkas, P. Varga, J. Sci. Instr. 41, 704 (1964).
[Crossref]

Young, A. T.

Appl. Opt. (2)

Can. J. Phys. (1)

D. M. Hunten, Can. J. Phys. 31, 681 (1953).
[Crossref]

J. Sci. Instr. (1)

C. Y. Farkas, P. Varga, J. Sci. Instr. 41, 704 (1964).
[Crossref]

Other (1)

A. D. Althouse, C. H. Turnquist, Modern Refrigeration and Air Conditioning (The Goodheart–Willcox Co., Chicago, 1960).

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Figures (3)

Fig. 1
Fig. 1

Closed-cycle refrigeration system.

Fig. 2
Fig. 2

Pressure-vs-temperature relationships of Freon-12 and Freon-22.

Fig. 3
Fig. 3

The pholtomultiplier cold box.

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