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Advances in thin film diffraction instrumentation by X-ray optics

Abstract

The structural characterisation of thin films requires a parallel X-ray beam of high intensity. Parallel beam geometry is commonly used in high resolution and single crystal experiments, but also in the field of X-ray diffraction for polycrystalline material (e.g. in phase, texture and stress analysis). For grazing incidence diffraction (GID), the use of small slits on the primary side and of long soller slits with a flat monochromator on the secondary side is standard. New optical elements have been introduced with polychromatic or monochromatic radiation. By means of different applications the results are compared with those of classical beam optics. X-ray fiber optics utilize total external reflection of X-rays on smooth surfaces. Effects of monochromatization are presented. In many fields of application, fiber optics may replace conventional collimators. The use of primary and secondary channel cut crystals can also produce a high parallel monochromatic X-ray beam. A parabolically bent graded multilayer produces a monochromatic parallel beam of high intensity. Compared with classical Bragg-Brentano (focussing) geometry, excellent results have been obtained, especially for samples with an irregular shape. In combination with a channel cut monochromator there is a substantial gain in intensity leading to an increase of the dynamic intensity range  More>>
Authors:
Haase, A [1] 
  1. Rich. Seifert and Co., Analytical X-ray Systems, Ahrensburg (Germany)
Publication Date:
Sep 01, 1996
Product Type:
Conference
Report Number:
LNF-IR-96/049; CONF-9610291-
Reference Number:
SCA: 665300; PA: ITA-97:000436; EDB-97:064274; SN: 97001773829
Resource Relation:
Conference: 5. school on X-ray diffraction from polycrystalline materials, Frascati (Italy), 2-5 Oct 1996; Other Information: PBD: Sep 1996; Related Information: Is Part Of Thin film characterisation by advanced X-ray diffraction techniques; Cappuccio, G.; Terranova, M.L. [eds.] [INFN, Laboratori Nazionali di Frascati, Rome (Italy)]; PB: 388 p.
Subject:
66 PHYSICS; X-RAY DIFFRACTION; THIN FILMS; TEXTURE; MONOCHROMATIC RADIATION; OPTICAL SYSTEMS; OPTICAL EQUIPMENT
OSTI ID:
465302
Research Organizations:
Istituto Nazionale di Fisica Nucleare, Frascati (Italy). Lab. Nazionale di Frascati
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE97740684; TRN: IT9700436
Availability:
OSTI as DE97740684
Submitting Site:
ITA
Size:
pp. 379-387
Announcement Date:
May 16, 1997

Citation Formats

Haase, A. Advances in thin film diffraction instrumentation by X-ray optics. Italy: N. p., 1996. Web.
Haase, A. Advances in thin film diffraction instrumentation by X-ray optics. Italy.
Haase, A. 1996. "Advances in thin film diffraction instrumentation by X-ray optics." Italy.
@misc{etde_465302,
title = {Advances in thin film diffraction instrumentation by X-ray optics}
author = {Haase, A}
abstractNote = {The structural characterisation of thin films requires a parallel X-ray beam of high intensity. Parallel beam geometry is commonly used in high resolution and single crystal experiments, but also in the field of X-ray diffraction for polycrystalline material (e.g. in phase, texture and stress analysis). For grazing incidence diffraction (GID), the use of small slits on the primary side and of long soller slits with a flat monochromator on the secondary side is standard. New optical elements have been introduced with polychromatic or monochromatic radiation. By means of different applications the results are compared with those of classical beam optics. X-ray fiber optics utilize total external reflection of X-rays on smooth surfaces. Effects of monochromatization are presented. In many fields of application, fiber optics may replace conventional collimators. The use of primary and secondary channel cut crystals can also produce a high parallel monochromatic X-ray beam. A parabolically bent graded multilayer produces a monochromatic parallel beam of high intensity. Compared with classical Bragg-Brentano (focussing) geometry, excellent results have been obtained, especially for samples with an irregular shape. In combination with a channel cut monochromator there is a substantial gain in intensity leading to an increase of the dynamic intensity range of rocking curves.}
place = {Italy}
year = {1996}
month = {Sep}
}