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Active Methods
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Analysis of neutron flux distribution for the validation of computational methods for the optimization of research reactor utilization
Analysis of neutron flux distribution for the validation of computational methods for the optimization of research reactor utilization,10.1016/j.aprad
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Analysis of neutron flux distribution for the validation of computational methods for the optimization of research reactor utilization
(
Citations: 2
)
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L. Snoj
,
A Trkov
,
R. Jaćimović
,
P. Rogan
,
G. Žerovnik
,
M. Ravnik
In order to verify and validate the computational methods for neutron flux calculation in TRIGA research reactor calculations, a series of experiments has been performed. The neutron activation method was used to verify the calculated neutron flux distribution in the TRIGA reactor. Aluminium (99.9wt%)–Gold (0.1wt%) foils (disks of 5mm diameter and 0.2mm thick) were irradiated in 33 locations; 6 in the core and 27 in the carrousel facility in the reflector. The experimental results were compared to the calculations performed with
Monte Carlo
code MCNP using detailed geometrical model of the reactor. The calculated and experimental normalized reaction rates in the core are in very good agreement for both isotopes indicating that the material and geometrical properties of the reactor core are modelled well. In conclusion one can state that our computational model describes very well the neutron flux and
reaction rate
distribution in the reactor core. In the reflector however, the accuracy of the epithermal and thermal neutron flux distribution and attenuation is lower, mainly due to lack of information about the
material properties
of the graphite reflector surrounding the core, but the differences between measurements and calculations are within 10%. Since our computational model properly describes the reactor core it can be used for calculations of reactor core parameters and for optimization of research reactor utilization.
Journal:
Applied Radiation and Isotopes  APPL RADIAT ISOTOPES
, vol. 69, no. 1, pp. 136141, 2011
DOI:
10.1016/j.apradiso.2010.08.019
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Citation Context
(1)
...The diodes were irradiated with neutrons in the TRIGA reactor of Joÿ Stefan Institute in Ljubljana [13], [
14
] while irradiations with 23 GeV protons were performed in IRRAD facility at CERN PS accelerator [15]...
I. Mandic
,
et al.
The Effect of Magnetic Field on Readout of Diodes Used as NIEL Counter...
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Citations
(2)
The Effect of Magnetic Field on Readout of Diodes Used as NIEL Counters
I. Mandic
,
F. Ravotti
,
M. Glaser
,
I. Sersa
,
J. Hartert
,
S. Franz
,
V. Cindro
,
I. Dolenc
,
A. Gorisek
,
G. Kramberger
,
M. Mikuz
Journal:
IEEE Transactions on Nuclear Science  IEEE TRANS NUCL SCI
, vol. 58, no. 3, pp. 11121116, 2011
Reduction of charging damage of gate oxide by time modulation bias method
T. Ono
,
Y. Oomoto
,
T. Mizutani
,
K. Yoshioka
,
Y. Ogawa
,
N. Kofuji
,
M. Izawa
,
Y. Goto
,
T. Kure
Conference:
International Symposium on Plasma and ProcessInduced Damage  PPID
, 1999