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Calculations of the...
Calculations of the Neutron Flux Outside BWR 8×8 Spent-Fuel Assemblies and the Sensitivity to Fuel Pin Diversion
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- Jansson, Peter, 1971- (författare)
- Uppsala universitet,Institutionen för strålningsvetenskap,Kärnfysik
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- Håkansson, Ane (författare)
- Uppsala universitet,Institutionen för strålningsvetenskap,Kärnfysik
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- Bäcklin, Anders (författare)
- Uppsala universitet,Institutionen för strålningsvetenskap,Kärnfysik
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(creator_code:org_t)
- 2004
- 2004
- Engelska.
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Ingår i: Nuclear Technology. - 0029-5450 .- 1943-7471. ; 146:1, s. 58-64
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Abstract
Ämnesord
Stäng
- The possibility of detecting replaced fuel rods in a spent-fuel assembly by means of measurement of the emitted neutron- and gamma-ray radiation has been investigated by computer simulations. The radiation field outside a boiling water reactor 8 × 8 fuel assembly with varying patterns of fuel rods replaced with lead dummies was calculated using a simple model for the source distribution and the Monte Carlo code MCNP-4C for the radiation field. In particular, the sensitivity of the thermal neutron field as measured in a Fork detector to various replacement patterns was investigated. The results suggest a detection limit of 5% of the fuel mass replaced, i.e., 3 out of 63 rods, independently of the pattern of the replaced rods.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Nyckelord
- FORK
- neutron
- nuclear fuel
- diversion
- safeguards
- Nuclear physics
- Kärnfysik
- Applied Nuclear Physics
- Tillämpad kärnfysik
- Fysik med inriktning mot tillämpad kärnfysik
- Physics with specialization in Applied Nuclear Physics
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- art (ämneskategori)
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