Published January 8, 1994 | Version v1
Journal article Metadata-only

Design of microfocusing bent-crystal double monochromators

Creators

  • 1. Missouri Univ. Research Reactor, Columbia, MO (United States)

Description

Design relations are given for double bent-crystal monochromators ensuring both spatial microfocusing and focusing in reciprocal space in powder diffraction. The choice of crystals for monochromators for microfocus stress scanning in steels is discussed. Design computations for an instrument at the Missouri University Research Reactor (MURR, thermal neutron flux 1014 n/cm2 s) with small-mosaic Cu(200) crystals are presented. The spot size can be brought down to 2.5x4 mm, with a peak flux at focus approaching 108 n/cm2 s. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Journal Volume
338
Journal Issue
1
Journal Page Range
p. 132-135.
ISSN
0168-9002
CODEN
NIMAER

Conference

Title
Workshop on focusing crystal optics.
Dates
10-11 May 1993.
Place
Braunschweig (Germany).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
25040291
Subject category
S43: PARTICLE ACCELERATORS; S07: ISOTOPES AND RADIATION SOURCES;
Resource subtype / Literary indicator
Conference
Descriptors DEI
BEAM TRANSPORT; BRAGG REFLECTION; COPPER; DEBYE-SCHERRER METHOD; ENERGY RESOLUTION; FOCUSING; LINE WIDTHS; MILLI EV RANGE; MONOCHROMATORS; MONOCRYSTALS; NEUTRON BEAMS; NEUTRON DIFFRACTION; NEUTRON FLUX; NEUTRON SPECTROSCOPY; STEELS; STRESSES; THERMAL NEUTRONS
Descriptors DEC
ALLOYS; BARYONS; BEAMS; CARBON ADDITIONS; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; DIFFRACTION METHODS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; HADRONS; IRON ALLOYS; IRON BASE ALLOYS; METALS; NEUTRONS; NUCLEON BEAMS; NUCLEONS; PARTICLE BEAMS; RADIATION FLUX; REFLECTION; RESOLUTION; SCATTERING; SPECTROSCOPY; TRANSITION ELEMENTS