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Details van artikel 33 van 87 gevonden artikelen
| Titel: |
Improving the uniformity of the gamma production rate distribution with depth in a large biological sample for an IVNAA facility |
| Auteur: |
Hakimabad Miri Hashem Motavalli Rafat Lalle |
| Verschenen in: |
Nuclear technology & radiation protection |
| Paginering: | Jaargang 24 (2009) nr. 2 pagina's 119-125 |
| Jaar: |
2009 |
| Inhoud: |
The design studies related to a prompt γ-rays in vivo neutron activation analysis facility are described. The designs were based on two neutron sources: 252Cf and 241Am-Be, four collimator materials: polyethylene, 5% boric-acid doped polyethylene, graphite, and the heavy water, two collimator shapes: pyramidal and rectangular, and two configurations: unilateral and bilateral. The aim of this work was improving the uniformity of the gamma production rate distribution with depth in a large biological sample. For the sample, a water phantom measuring 32cm x 16cm x 100cm was simulated. The simulations were performed by MCNPX 2.4.0 Monte Carlo code. This study recommends the prompt γ-rays IVNAA facility in the bilateral configuration with graphite as a collimator material and 241Am-Be as neutron source. |
| Uitgever: |
VINČA Institute of Nuclear Sciences (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 33 van 87 gevonden artikelen
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