Two dimensional position sensitive scintillation neutron detector for the time-of-flight single crystal diffractometer at the IPNS

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Trans. Am. Crystallogr. Assoc.; (United States)

OSTI ID:6308463

Schultz, A J; Teller, R G; Williams, J M; Strauss, M G; Brenner, R

A two dimensional position sensitive neutron detector with an active area of 30 cm x 30 cm has been developed. The detector consists of a 7 x 7 array of 2-inch-square photomultiplier tubes (PMT's) in front of which is a 38 mm thick light disperser and a 2 mm thick /sup 6/Li--loaded, Ce-activated, glass scintillator. Each captured neutron produces a scintillation in the visible light range which is observed by a number of PMT's which intercept different solid angles of the light from the scintillation. The X and Y coordinates of the event are determined with a spatial resolution of approximately 3.5 mm (FWHM) using a resistor weighting of the output signals of the PMT's. The detector is more quantum efficient for neutrons and easier to construct than a high pressure gas filled multiwire proportional counter, and there is virtually no parallax with only a 2 mm thick sensitive region. The detector is currently being used in conjunction with the time-of-flight single crystal diffractometer at the Intense Pulse Neutron Source.

• Research Organization: Chemistry and Electronics Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 6308463
• Journal Information: Trans. Am. Crystallogr. Assoc.; (United States), Journal Name: Trans. Am. Crystallogr. Assoc.; (United States) Vol. 18:1; ISSN TACAA
• Country of Publication: United States
• Language: English

Related Subjects

440104* -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ACCELERATORS
CALIBRATION
COHERENT SCATTERING
CYCLIC ACCELERATORS
DATA ACQUISITION
DETECTION
DIFFRACTION
DIFFRACTOMETERS
EFFICIENCY
IPNS-I SYNCHROTRON
MEASURING INSTRUMENTS
NEUTRON DETECTION
NEUTRON DIFFRACTION
NEUTRON DIFFRACTOMETERS
NEUTRON SOURCE FACILITIES
PHOTOMULTIPLIERS
PHOTOTUBES
POSITION SENSITIVE DETECTORS
QUANTUM EFFICIENCY
RADIATION DETECTION
RADIATION DETECTORS
RESOLUTION
SCATTERING
SCINTILLATION COUNTERS
SPATIAL RESOLUTION
SYNCHROTRONS