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| Titel: |
Activation rate uniformity in a bilateral IVNAA facility for two anthropomorphic phantoms |
| Auteur: |
Miri Hakimabad Hashem Rafat Motavalli Lalle Karimi Shahri Keihandokht |
| Verschenen in: |
Nuclear technology & radiation protection |
| Paginering: | Jaargang 25 (2010) nr. 2 pagina's 69-77 |
| Jaar: |
2010 |
| Inhoud: |
Activation rate uniformity is the first property which is considered in the design of a prompt γ-ray in vivo neutron activation analysis facility. Preliminary studies on the activation rate distribution in the body can be done by use of Monte Carlo codes, such as the MCNP. In this paper, different bilateral configurations of an IVNAA system are considered in order to improve the activation rate uniformity in a water phantom measuring 32 cm x 100 cm x 16 cm. In the best case, uniformity parameters are U = 1.003 and R = 1.67, with the mean activation rate of 1.85×10-6 cm-3. In more accurate calculations, the water phantom is replaced by a body model. The model in question is a 5 year-old ORNL phantom filled with just soft tissue. For uniformity studies, the internal organs are not simulated. Finally, uniformity parameters in this case are U = 1.005 and R = 12.2. |
| Uitgever: |
VINČA Institute of Nuclear Sciences (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 3 van 87 gevonden artikelen
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