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Title: Ultrahigh vacuum chamber for synchrotron x-ray diffraction from films adsorbed on single-crystal surfaces

Abstract

An ultrahigh vacuum chamber has been developed for structural analysis of adsorbed films and single-crystal surfaces using synchrotron x-ray diffraction. It is particularly well suited for investigations of physisorbed and other weakly bound films. The chamber is small enough to transport and mount directly on a standard four-axis diffractometer and can also be used independently of the x-ray diffractometer. A low-current, pulse-counting, low-energy electron diffraction/Auger spectroscopy system with a position-sensitive detector enables {ital in} {ital situ} characterization of the film and substrate while the sample is located at the x-ray scattering position. A closed-cycle He refrigerator and electron bombardment heater provide controlled substrate temperatures from 30 to 1300 K. The chamber is also equipped with an ion sputter gun, a quadrupole mass spectrometer, and a gas handling system. Details of the design and operation of the instrument are described. To demonstrate the performance of the instrument, we present some preliminary results of a study of Xe physisorbed on the Ag(111) surface.

Authors:
 [1]; ; ; ;  [2];  [3]
  1. Department of Physics, Utah State University, Logan, Utah 84322 (United States)
  2. Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, Missouri 65211 (United States)
  3. School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)
Publication Date:
OSTI Identifier:
7037600
DOE Contract Number:  
FG02-85ER45183
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments; (United States)
Additional Journal Information:
Journal Volume: 63:8; Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; SAMPLE HOLDERS; DESIGN; X-RAY DIFFRACTION; OPERATION; SYNCHROTRON RADIATION; ULTRAHIGH VACUUM; VACUUM SYSTEMS; BREMSSTRAHLUNG; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; RADIATIONS; SCATTERING; 440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Dennison, J R, Wang, S, Dai, P, Angot, T, Taub, H, and Ehrlich, S N. Ultrahigh vacuum chamber for synchrotron x-ray diffraction from films adsorbed on single-crystal surfaces. United States: N. p., 1992. Web. doi:10.1063/1.1143279.
Dennison, J R, Wang, S, Dai, P, Angot, T, Taub, H, & Ehrlich, S N. Ultrahigh vacuum chamber for synchrotron x-ray diffraction from films adsorbed on single-crystal surfaces. United States. https://doi.org/10.1063/1.1143279
Dennison, J R, Wang, S, Dai, P, Angot, T, Taub, H, and Ehrlich, S N. 1992. "Ultrahigh vacuum chamber for synchrotron x-ray diffraction from films adsorbed on single-crystal surfaces". United States. https://doi.org/10.1063/1.1143279.
@article{osti_7037600,
title = {Ultrahigh vacuum chamber for synchrotron x-ray diffraction from films adsorbed on single-crystal surfaces},
author = {Dennison, J R and Wang, S and Dai, P and Angot, T and Taub, H and Ehrlich, S N},
abstractNote = {An ultrahigh vacuum chamber has been developed for structural analysis of adsorbed films and single-crystal surfaces using synchrotron x-ray diffraction. It is particularly well suited for investigations of physisorbed and other weakly bound films. The chamber is small enough to transport and mount directly on a standard four-axis diffractometer and can also be used independently of the x-ray diffractometer. A low-current, pulse-counting, low-energy electron diffraction/Auger spectroscopy system with a position-sensitive detector enables {ital in} {ital situ} characterization of the film and substrate while the sample is located at the x-ray scattering position. A closed-cycle He refrigerator and electron bombardment heater provide controlled substrate temperatures from 30 to 1300 K. The chamber is also equipped with an ion sputter gun, a quadrupole mass spectrometer, and a gas handling system. Details of the design and operation of the instrument are described. To demonstrate the performance of the instrument, we present some preliminary results of a study of Xe physisorbed on the Ag(111) surface.},
doi = {10.1063/1.1143279},
url = {https://www.osti.gov/biblio/7037600}, journal = {Review of Scientific Instruments; (United States)},
issn = {0034-6748},
number = ,
volume = 63:8,
place = {United States},
year = {Sat Aug 01 00:00:00 EDT 1992},
month = {Sat Aug 01 00:00:00 EDT 1992}
}