Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Electron-atom source as a primary radiometric standard for the EUV spectral region

Not Accessible

Your library or personal account may give you access

Abstract

A compact, portable radiometric standard for the EUV wavelength region utilizing single photon counting is described. An energetic beam of electrons is passed through a thin atomic or molecular gas target inducing radiative transitions. The absolute flux of radiation per unit length of beam emitted in a spectral line can be calculated from the current of electrons and the number density of the target gas if the relevant electron-impact photoemission cross section is known at the electron-impact energy used. In typical operating conditions and for a photoemission cross section of 10−22 m2, the emitted flux of photons can be 1010 photons/s/cm of beam length resulting in a count rate of 500 counts/s into an f/6 spectrometer–detector system. Assessment of previously measured electron-impact photoemission cross sections indicates that, once precision benchmark cross-sectional measurements are available, ultimate uncertainties as low as 3% could be obtained for this standard.

© 1989 Optical Society of America

Full Article  |  PDF Article
More Like This
Determination of absolute emission cross sections for electron-impact-induced line radiation in the vacuum ultraviolet

Wolfgang Jans, Bernd Möbus, Michael Kühne, Gerhard Ulm, Andreas Werner, and Karl-Heinz Schartner
Appl. Opt. 34(19) 3671-3680 (1995)

Calibration of a VUV spectrometer–detector system using synchrotron radiation

Armon McPherson, Ned Rouze, W. B. Westerveld, and John S. Risley
Appl. Opt. 25(2) 298-310 (1986)

Comparison of methods for determining the second-order detection efficiency of a VUV spectrometer

Richard L. Kendrick, Armon McPherson, N. Rouze, W. B. Westerveld, and John S. Risley
Appl. Opt. 26(10) 2029-2041 (1987)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved