Microtron MT 25 as a source of neutrons

Journal Article · Wed Aug 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4739404· OSTI ID:22093699

Kralik, M.; Solc, J. ^[1]; Chvatil, D.; Krist, P.; Turek, K. ^[2]; Granja, C. ^[3]

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1. Czech Metrology Institute, CZ-102 00 Prague 10 (Czech Republic)
2. Nuclear Physics Institute, p.r.i., AS CR, CZ-250 68 Rez (Czech Republic)
3. Institute of Experimental and Applied Physics, Horska 3a/22, CZ-128 00 Prague 2 (Czech Republic)

The objective was to describe Microtron MT25 as a source of neutrons generated by bremsstrahlung induced photonuclear reactions in U and Pb targets. Bremsstrahlung photons were produced by electrons accelerated at energy 21.6 MeV. Spectral fluence of the generated neutrons was calculated with MCNPX code and then experimentally determined at two positions by means of a Bonner spheres spectrometer in which the detector of thermal neutrons was replaced by activation Mn tablets or track detectors CR-39 with a {sup 10}B radiator. The measured neutron spectral fluence and the calculated anisotropy served for the estimation of neutron yield from the targets and for the determination of ambient dose equivalent rate at the place of measurement. Microtron MT25 is intended as one of the sources for testing neutron sensitive devices which will be sent into the space.

• OSTI ID: 22093699
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 8; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
43 PARTICLE ACCELERATORS
ANISOTROPY
BONNER SPHERE SPECTROMETERS
BORON 10
BREMSSTRAHLUNG
DOSE EQUIVALENTS
LEAD
MEV RANGE 10-100
MICROTRONS
NEUTRON SOURCES
PARTICLE TRACKS
PHOTONS
PHOTONUCLEAR REACTIONS
THERMAL NEUTRONS
URANIUM