Multiple-angle time-of-flight design concepts. Are we overlooking an order of magnitude in instrument performance for general structural studies

Conference · Fri Aug 01 04:00:00 EDT 1986

OSTI ID:7249188

Jorgensen, J D

It is reported that an optimum resolution function for a time-of-flight powder diffractometer can be achieved by the use of detector banks at multiple scattering angles. The count rate is then raised by using a much narrower band of wavelengths selected by suitable bandpass choppers so that data from different scattering angles overlap. A specific instrument design has been evaluated to illustrate these concepts. It is found that the expected gain in performance is realized, and additional advantages include a lower delayed neutron background and a reduction of systematic errors. Further improvements are mentioned. (LEW)

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7249188
• Report Number(s): CONF-860520-8; ON: DE87001569
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COHERENT SCATTERING
DESIGN
DIFFRACTION
DIFFRACTOMETERS
MEASURING INSTRUMENTS
NEUTRON DIFFRACTION
NEUTRON DIFFRACTOMETERS
PERFORMANCE
POWDERS
SCATTERING
TIME-OF-FLIGHT METHOD