Time-of-Flight Characteristics of a Laser Torch during Ablation of a MnSi Target in Argon Atmosphere

Autor: V. A. Mikhalevskii, A. A. Lotin, Oleg Alexeyevic Novodvorsky, L. S. Parshina, Olga D. Khramova, D. S. Gusev, E. A. Cherebylo
Rok vydání: 2018
Předmět:
Zdroj: Technical Physics Letters. 44:271-274
ISSN: 1090-6533
1063-7850
DOI: 10.1134/s1063785018030239
Popis: The Langmuir-probe technique has been used to study the time-of-flight characteristics of a laser torch during MnSi-target ablation in vacuum and argon atmosphere by pulsed 532-nm laser radiation at 15-ns pulse duration. It is established that the amplitude of the signal of fast particles in the laser torch nonmonotonically depends on the buffer-gas pressure. Mechanisms determining this dependence of laser-torch characteristics on the pressure are considered. The influence of buffer-gas pressure on the ion-velocity distribution function is determined.
Databáze: OpenAIRE