Published 2004
| Version v1
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Procedure to select the initial guess spectrum during unfolding
- 1. Universidad Autonoma de Zacatecas, A.P. 336, 98000 Zacatecas (Mexico)
Description
A new method to select the initial guess spectrum,during unfolding, is presented. Neutron spectra unfolded from Bonner sphere data are dependent on the initial guess spectrum used in the unfolding code. The method is based on a catalogue of detector count rates calculated from a set of reported neutron spectra. The spectra of three isotopic neutron sources: 252 Cf, 239 Pu Be and 252 Cf/D2O, were measured to test the method. The unfolding was carried out using the three initial guess options included in the BUNKIUT code. Neutron spectra were also calculated using MCNP code. Unfolded spectra were compared with those calculated; in all the cases the method here presented gives the best results. (Author)
Availability note (English)
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Additional details
Publishing Information
- ISBN
- 970-773-023-4
- Imprint Pagination
- 6 p.
- Report number
- INIS-MX--1585
Conference
- Title
- 7. International Conference. 17 National Congress on Solid State Dosimetry
- Dates
- 8-10 Sep 2004
- Place
- Puebla (Mexico)
INIS
- Country of Publication
- Mexico
- Country of Input or Organization
- Mexico
- INIS RN
- 35103694
- Subject category
- S61: RADIATION PROTECTION AND DOSIMETRY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- B CODES; BERYLLIUM; BONNER SPHERE DETECTORS; CALIFORNIUM 252; COUNTING RATES; FREDHOLM EQUATION; HEAVY WATER; ISOTOPES; M CODES; MEV RANGE; NEUTRON SOURCES; NEUTRON SPECTRA; PLUTONIUM 239; SPECTRA; SPECTRA UNFOLDING
- Descriptors DEC
- ACTINIDE NUCLEI; ALKALINE EARTH METALS; ALPHA DECAY RADIOISOTOPES; CALIFORNIUM ISOTOPES; COMPUTER CODES; DATA PROCESSING; DEUTERIUM COMPOUNDS; ELEMENTS; ENERGY RANGE; EQUATIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; HYDROGEN COMPOUNDS; INTEGRAL EQUATIONS; ISOTOPES; MEASURING INSTRUMENTS; METALS; MODERATING DETECTORS; NEUTRON DETECTORS; NUCLEI; OXYGEN COMPOUNDS; PARTICLE SOURCES; PLUTONIUM ISOTOPES; PROCESSING; RADIATION DETECTORS; RADIATION SOURCES; RADIOISOTOPES; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES; WATER; YEARS LIVING RADIOISOTOPES