Photon emission produced by particle-surface collisions

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Visible, ultraviolet, and infrared optical emission results from low- energy (20 eV-10 keV) particle-surface collisions. Several distinct kinds of collision induced optical radiation are discussed which provide fundamental information on particle-solid collision processes. Line radiation arises from excited states of sputtered surface constituents and backscattered beam particles. This radiation uniquely identifies the quantum state of sputtered or reflected particles, provides a method for identifying neutral atoms sputtered from the surface, and serves as the basis for a sensitive surface analysis technique. Broadband radiation from the bulk of the solid is attributed to the transfer of projectile energy to the electrons ... continued below

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15 p.

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White, C.W. & Tolk, N.H. February 1, 1976.

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Description

Visible, ultraviolet, and infrared optical emission results from low- energy (20 eV-10 keV) particle-surface collisions. Several distinct kinds of collision induced optical radiation are discussed which provide fundamental information on particle-solid collision processes. Line radiation arises from excited states of sputtered surface constituents and backscattered beam particles. This radiation uniquely identifies the quantum state of sputtered or reflected particles, provides a method for identifying neutral atoms sputtered from the surface, and serves as the basis for a sensitive surface analysis technique. Broadband radiation from the bulk of the solid is attributed to the transfer of projectile energy to the electrons in the solid. Continuum emission observed well in front of transition metal targets is believed to arise from excited atom clusters (diatomic, triatomic, etc.) ejected from the solid in the sputtering process. Application of sputtered atom optical radiation for surface and depth profile analysis is demonstrated for the case of submonolayer quantities of chromium on silicon and aluminum implanted in SiO$sub 2$.

Physical Description

15 p.

Notes

Dep. NTIS

Source

  • 2. international conference on surface effects in controlled fusion devices, San Francisco, California, United States of America (USA), 16 Feb 1976

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  • Report No.: CONF-760209--19
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 4047652
  • Archival Resource Key: ark:/67531/metadc867688

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • February 1, 1976

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

Description Last Updated

  • Oct. 12, 2017, 1:09 p.m.

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White, C.W. & Tolk, N.H. Photon emission produced by particle-surface collisions, article, February 1, 1976; Tennessee. (digital.library.unt.edu/ark:/67531/metadc867688/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.