- Tytuł:
- Large Sample Neutron Activation Analysis: correction for neutron and gamma attenuation
- Autorzy:
-
Tzika, F.
Stamatelatos, I.
Kalef-Ezra, J.
Bode, P. - Powiązania:
- https://bibliotekanauki.pl/articles/147265.pdf
- Data publikacji:
- 2004
- Wydawca:
- Instytut Chemii i Techniki Jądrowej
- Tematy:
-
neutron activation analysis
neutron self-shielding
gamma-ray attenuation
MCNP code - Opis:
- A Large Sample Neutron Activation Analysis (LSNAA) facility is under development at the GRR-1 research reactor, NCSR "Demokritos". The LSNAA facility design incorporates sample irradiation in the reactor graphite thermal neutron column and subsequent measurement of the activity induced in a gamma spectroscopy system with gamma ray transmission measurement options included. The Monte Carlo neutron and photon transport code MCNP-4C was used to model the facility. Appropriate correction factors accounting for neutron field perturbation during sample irradiation and high-purity germanium detector efficiency for the volume source were derived. The results of the computations were experimentally verified by measurements for a set of known materials. The LSNAA facility will be used to perform multi-element, non-destructive, contamination-free analysis of large volume samples with high sensitivity and excellent sampling. End-users of the facility will be archaeological, environmental, bio-medical research laboratories and industry.
- Źródło:
-
Nukleonika; 2004, 49, 3; 115-121
0029-5922
1508-5791 - Pojawia się w:
- Nukleonika
- Dostawca treści:
- Biblioteka Nauki
Artykuł