2-keV filtered beam facility at the NBS reactor

Conference · Wed Oct 01 04:00:00 EDT 1975 · Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States)

OSTI ID:7365653

Schroder, I G ^[1]; Schwartz, R B; McGarry, E D

---

1. National Bureau of Standards, Washington, DC

A scandium filter that views a manganese scatterer has been installed in a through tube of the National Bureau of Standards Reactor (NBSR). The use of a resonant scatterer eliminates unwanted core neutrons and core gamma rays. This produces a pure 2-keV neutron beam with only 3 percent higher energy neutron contamination and a 1 mR/hr/sup -1/ gamma-ray background. This should be compared with previously reported results in which the high energy contaminant was approximately 50 percent, thus severely limiting the utility of such a filter. Details of the filter construction, the use of titanium with the scandium to reduce background, the optimization of the beam for different types of experiments, and the application of 2-keV neutrons to neutron dosimetry, cross-section measurements and capture gamma-ray studies are discussed.

• OSTI ID: 7365653
• Conference Information: Journal Name: Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
220600* -- Nuclear Reactor Technology-- Research
Test & Experimental Reactors
BEAMS
DOSIMETRY
ENERGY RANGE
HEAVY WATER COOLED REACTORS
HEAVY WATER MODERATED REACTORS
IRRADIATION REACTORS
KEV RANGE
KEV RANGE 01-10
MATERIALS TESTING REACTORS
NBSR REACTOR
NEUTRON BEAMS
NEUTRON DOSIMETRY
NUCLEON BEAMS
PARTICLE BEAMS
REACTOR COMPONENTS
REACTOR EXPERIMENTAL FACILITIES
REACTORS
RESEARCH AND TEST REACTORS
RESEARCH REACTORS
TANK TYPE REACTORS
THERMAL REACTORS