Accession Number:

ADA422457

Title:

Temporally Resolved Langmuir Probe Measurements in LAPPS

Descriptive Note:

Interim rept.

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Report Date:

2004-04-12

Pagination or Media Count:

28.0

Abstract:

Electron beams efficiently ionize and dissociate gas, to form low temperature 1.5 eV high-density 1Oto the 10-lOto the 12cmto the -3 plasmas with low internal fields. These plasma sources have culminated in LAPPS, NRLs Large Area Plasma Processing System for surface modification of materials. Single Langmuir probes were constructed and used to determine global plasma parameters electron temperature, density, and plasma potential in modulated plasmas generated by high-energy 2 keV electron beams. This work describes in detail the construction of probes, applications of probes in modulated systems and magnetic fields, data acquisition, and data analysis used in the study of electron beam generated plasmas.

Subject Categories:

  • Electrical and Electronic Equipment
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE