TY - JOUR
T1 - Measurements of epithermal neutron properties of ITU Triga Mark II research reactor
AU - Koyuncu, Neslihan
AU - Erbay, Onur
AU - Reyhancan, İskender Atilla
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12
Y1 - 2022/12
N2 - The k0 standardization method is one of the most commonly used neutron activation analyses to determine the concentrations of elements in the sample. To perform this method, it is required to know the neutron spectrum parameters such as epithermal neutron flux shape factor (α) and thermal to epithermal neutron flux ratio (f). In this study, the α and f parameters were determined using the Cd-ratio dual monitor method and bare triple monitor method. In both methods, irradiation studies were performed in the central thimble at the ITU Triga Mark II research reactor. A gamma-ray counting system (HpGe detector) was used for measuring foil activation values. The selected monitors were 197Au and 94Zr for the Cd-ratio dual monitor method and 197Au/94Zr/96Zr for the bare triple monitor method. The α and f parameters were −0.221 ± 0.018 and 41.826 ± 4.701 for 197Au/94Zr (724 keV) monitors, −0.231 ± 0.019 and 42.626 ± 4.791 for 197Au/94Zr (756 keV) monitors, 0.228 ± 0.025 and 43.917 ± 3.596 for 197Au/94Zr/96Zr monitors, respectively.
AB - The k0 standardization method is one of the most commonly used neutron activation analyses to determine the concentrations of elements in the sample. To perform this method, it is required to know the neutron spectrum parameters such as epithermal neutron flux shape factor (α) and thermal to epithermal neutron flux ratio (f). In this study, the α and f parameters were determined using the Cd-ratio dual monitor method and bare triple monitor method. In both methods, irradiation studies were performed in the central thimble at the ITU Triga Mark II research reactor. A gamma-ray counting system (HpGe detector) was used for measuring foil activation values. The selected monitors were 197Au and 94Zr for the Cd-ratio dual monitor method and 197Au/94Zr/96Zr for the bare triple monitor method. The α and f parameters were −0.221 ± 0.018 and 41.826 ± 4.701 for 197Au/94Zr (724 keV) monitors, −0.231 ± 0.019 and 42.626 ± 4.791 for 197Au/94Zr (756 keV) monitors, 0.228 ± 0.025 and 43.917 ± 3.596 for 197Au/94Zr/96Zr monitors, respectively.
KW - Alpha shape factor
KW - Flux ratio
KW - Neutron activation analysis
UR - http://www.scopus.com/inward/record.url?scp=85138762454&partnerID=8YFLogxK
U2 - 10.1016/j.apradiso.2022.110479
DO - 10.1016/j.apradiso.2022.110479
M3 - Article
C2 - 36183660
AN - SCOPUS:85138762454
SN - 0969-8043
VL - 190
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
M1 - 110479
ER -