Brief Communications

Determination of the rotational relaxation time of compressed hydrogen

A. Z. Grasyuk, Yu. I. Karev, L. L. Losev


Abstract: The method of noncoherent active Raman spectroscopy was used to study rotational relaxation in orthohydrogen (J = 3 → J = 1 transition). The dependence of the rotational relaxation time on the hydrogen pressure was determined. At 1 atm the rotational relaxation time was 26 ± 2 nsec.

UDC: 621 .378.33

PACS: 31.70.Hq

Received: 29.05.1981

 English version: Soviet Journal of Quantum Electronics, 1982, 12:1, 114–115

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