A. V. Sidorov, A. P. Veselov, A. V. Vodopyanov, V. V. Kubarev, Ya. I. Gorbachev, O. A. Shevchenko, “Features of the breakdown in heavy noble gases under the action of Novosibirsk free electron laser radiation”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2023, Volume 49, Issue 3,Pages <nobr>19

Features of the breakdown in heavy noble gases under the action of Novosibirsk free electron laser radiation

A. V. Sidorov^a, A. P. Veselov^a, A. V. Vodopyanov^a, V. V. Kubarev^b, Ya. I. Gorbachev^b, O. A. Shevchenko^b

^a Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, Nizhny Novgorod, Russia
^b G I. Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

Abstract: The results of experimental studies on the breakdown of noble gases (argon and krypton) by terahertz radiation from the Novosibirsk free electron laser (NovoFEL) are presented. For the first time, the breakdown thresholds of noble gases by terahertz radiation were measured in a wide pressure range (0.2–1.5 bar). Previous experiments to measure breakdown thresholds in the THz range in various gases were carried out for hundreds of GHz or at atmospheric pressure. Experimental breakdown thresholds are compared with calculated data using various simplified models.

Keywords: THz radiation, gas breakdown, THz laser discharge.

Received: 11.11.2022
Revised: 28.11.2022
Accepted: 29.11.2022

DOI: 10.21883/PJTF.2023.03.54460.19424