MECHANISMS OF LASER-SURFACE INTERACTIONS
Abstract
This report extends earlier measurements on particle emission produced when approximately 50 megawatts/sq cm pulses of radiation from a Q- switched ruby laser are absorbed at metal surfaces. Ion emission from carbon targets includes (Li6)(+), (Li7)(+), C(+), CH3(+), H2O(+), Na(+), and K(+) ions with energies up to 540 ev. Emission from single crystalline nickel targets includes ion species not observed before in this work, i.e., Na(++) and H2(+). Work using a quadrupole mass spectrometer to study neutral molecule emission has also been extended to carbon targets, which yield results similar to other target materials, and additional confirming work on the presence of high energy neutral molecules has been performed. Equipment under construction for measurement of the angular distribution of the ion emission is described. The expansion of the laser produced gas and resulting particle fluxes at a distance from the surface are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1966
- Accession Number
- AD0645473
Entities
People
- G. E. Bernal
- J. F. Ready
Organizations
- Honeywell International, Inc.