MACS, the manipulation and collimation system on the NPD at LANSCE

Conference · Tue Jan 01 00:00:00 EST 1991

DOI:https://doi.org/10.1007/978-94-011-2797-4_32· OSTI ID:5548960

Bourke, M A.M.; Goldstone, J A; Lovell, K J

The practical problems associated with beam collimation and specimen manipulation at a pulsed neutron source are identical to those on a steady state source. However extra constraints result from the limited space available and from the time of flight analysis of the diffracted neutrons. A manipulation and collimation system (MACS) has been designed for the neutron powder diffractometer (NPD) at the Los Alamos spallation neutron source (LANSCE). It provides specimen motion and aperture positioning with accuracies of better than 0.1mm and is constructed as a rigid unit. For flat sided specimens sampling volumes less than 30 mm{sup 3} have been obtained demonstrating the viability of making spatially resolved strain measurements at a pulsed neutron source. 3 figs.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5548960
• Report Number(s): LA-UR-91-1700; CONF-9103130-4; ON: DE91013685
• Resource Relation: Conference: North Atlantic Treaty Organization (NATO) advanced research workshop on measurement of residual stress and applied stress using neutron diffraction, Oxford (UK), 18-22 Mar 1991
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
07 ISOTOPES AND RADIATION SOURCES
NEUTRON DIFFRACTOMETERS
COLLIMATORS
MANIPULATORS
CALIBRATION
NEUTRON DIFFRACTION
NEUTRON SOURCES
PULSED NEUTRON TECHNIQUES
SPATIAL RESOLUTION
COHERENT SCATTERING
DIFFRACTION
DIFFRACTOMETERS
EQUIPMENT
LABORATORY EQUIPMENT
MATERIALS HANDLING EQUIPMENT
MEASURING INSTRUMENTS
PARTICLE SOURCES
RADIATION SOURCES
REMOTE HANDLING EQUIPMENT
RESOLUTION
SCATTERING
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation
070201 - Radiation Sources- Design
Fabrication & Operation