D. R. Devet’yarov, M. A. Eronyan, V. N. Lomasov, A. F. Opalihin, Y. A. Skupov, B. A. Sobol, A. A. Untilov, “A compact cryothermostat with solid carbon dioxide refrigerant”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2019, Volume 45, Issue 24,Pages <nobr>3

A compact cryothermostat with solid carbon dioxide refrigerant

D. R. Devet’yarov^a, M. A. Eronyan^a, V. N. Lomasov^b, A. F. Opalihin^c, Y. A. Skupov^a, B. A. Sobol^a, A. A. Untilov^a

^a CSRI Elektropribor, St. Petersburg
^b Peter the Great St. Petersburg Polytechnic University
^c LLC Testa, St. Petersburg, Russia

Abstract: The design of a simple compact cryothermostat intended for studying the influence of $\gamma$ irradiation on the optical losses of single-mode fluorosilicate optical fibers operating at a 1.31-$\mu$m wavelength is described. It is established that the radiation resistance of these optical fibers increases as the test temperature is decreased from +25 to -60$^\circ$C.

Keywords: cryothermostat, fluorosilicate optical fibers, radiation resistance, $\gamma$ radiation, scattering.

Received: 25.07.2019
Revised: 25.07.2019
Accepted: 09.09.2019

DOI: 10.21883/PJTF.2019.24.48792.17999