This article is cited in 1 paper

Effects of laser radiation on matter. Laser plasma

Emission of charged particles from the surface of a moving target acted on by cw CO₂ laser radiation

S. I. Kuznetsov, A. L. Petrov, A. N. Shadrin


Abstract: An experimental investigation was made of the emission of charged particles due to the irradiation of moving steel and graphite targets with cw CO₂ laser radiation. The characteristics of the emission current signals were determined for different laser irradiation regimes. The maximum emission current density from the surface of a melt pool (~1.1 X 10 ^– 2 A/cm²) and the average temperature of the liquid metal (~ 2040 K) were measured for an incident radiation power density of 550 W and for horizontal and vertical target velocities of respectively ~ 1.5 mm/s and ~ 0.17 mm/s. The authors propose to utilize this phenomenon for monitoring the laser processing of materials.

UDC: 621.373.826.038.823:533.9

PACS: 42.55.Lt, 42.62.-b, 42.60.Pk, 42.60.Fc, 42.60.Jf

Received: 14.04.1989

 English version: Soviet Journal of Quantum Electronics, 1990, 20:6, 667–672

Bibliographic databases:

•