Design study of a time of flight small-angle diffractometer for a pulsed neutron source
Conference
·
OSTI ID:5264638
The design study for a neutron SAS instrument at Argonne's proposed Intense Pulsed Neutron Source (peak thermal neutron flux 10/sup 16/ n/cm/sup 2/-sec) indicates that an effective high-resolution TOF SAS diffractometer can be constructed. The design features include a converging slit collimator, provision for 5 x 5 cm/sup 2/ sample cross sectional area, and a 1 x 1 m/sup 2/, two-dimensional detector. The fractional wavelength resolution of the instrument is negligibly small for all wavelengths. The resolution was computed by Monte Carlo simulation and is constant over most of the Q range. A special feature of the instrument is the wide range of accessible Q's, without the requirement of instrument configurational changes. The flux on sample exceeds that at conventional reactor instruments of comparable resolution.
- Research Organization:
- Argonne National Lab., Ill. (USA)
- OSTI ID:
- 5264638
- Report Number(s):
- CONF-771077-4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BARYONS
COLLIMATORS
COUNTING RATES
DESIGN
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MEASURING INSTRUMENTS
NEUTRON DIFFRACTOMETERS
NEUTRON FLUX
NEUTRON SOURCES
NEUTRONS
NUCLEONS
PARTICLE SOURCES
PULSED NEUTRON TECHNIQUES
RADIATION FLUX
RADIATION SOURCES
RESOLUTION
SCATTERING
SMALL ANGLE SCATTERING
SPECTROMETERS
TIME-OF-FLIGHT SPECTROMETERS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BARYONS
COLLIMATORS
COUNTING RATES
DESIGN
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MEASURING INSTRUMENTS
NEUTRON DIFFRACTOMETERS
NEUTRON FLUX
NEUTRON SOURCES
NEUTRONS
NUCLEONS
PARTICLE SOURCES
PULSED NEUTRON TECHNIQUES
RADIATION FLUX
RADIATION SOURCES
RESOLUTION
SCATTERING
SMALL ANGLE SCATTERING
SPECTROMETERS
TIME-OF-FLIGHT SPECTROMETERS