Improving the resolution of chopper spectrometers at pulsed neutron sources
Conference
·
OSTI ID:6294537
- Argonne National Lab., IL (USA)
- National Bureau of Standards, Washington, DC (USA). Center for Analytical Chemistry
We examine the relationships between intensity and resolution in pulsed-source chopper spectrometers, including the effects of Soller collimation, narrower rotor slits and higher rotor speeds. The basis is a simplified description of a spectrometer, approximately optimizing the rotor pulse and lighthouse effects. the analysis includes a new treatment of the angular distribution transmitted through a system consisting of a coarse collimator and a Soller collimator. The results encourage the prospect for a reasonably easily accomplished, higher resolution, optional configuration of the pulsed source chopper spectrometers at IPNS. 6 refs., 5 figs.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6294537
- Report Number(s):
- CONF-9010243-15; ON: DE91007655; TRN: 91-004729
- Resource Relation:
- Conference: International collaboration on advanced neutron sources, Tsukuba (Japan), 21-26 Oct 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
NEUTRON SPECTROMETERS
MODIFICATIONS
ANGULAR DISTRIBUTION
ENERGY RESOLUTION
IPNS-I SYNCHROTRON
NEUTRON CHOPPERS
NEUTRON SOURCES
PHASE SPACE
PULSED NEUTRON TECHNIQUES
TIME-OF-FLIGHT SPECTROMETERS
ACCELERATORS
BEAM PULSERS
CYCLIC ACCELERATORS
DISTRIBUTION
MATHEMATICAL SPACE
MEASURING INSTRUMENTS
NEUTRON SOURCE FACILITIES
PARTICLE SOURCES
RADIATION SOURCES
RESOLUTION
SPACE
SPECTROMETERS
SYNCHROTRONS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
NEUTRON SPECTROMETERS
MODIFICATIONS
ANGULAR DISTRIBUTION
ENERGY RESOLUTION
IPNS-I SYNCHROTRON
NEUTRON CHOPPERS
NEUTRON SOURCES
PHASE SPACE
PULSED NEUTRON TECHNIQUES
TIME-OF-FLIGHT SPECTROMETERS
ACCELERATORS
BEAM PULSERS
CYCLIC ACCELERATORS
DISTRIBUTION
MATHEMATICAL SPACE
MEASURING INSTRUMENTS
NEUTRON SOURCE FACILITIES
PARTICLE SOURCES
RADIATION SOURCES
RESOLUTION
SPACE
SPECTROMETERS
SYNCHROTRONS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation