Full core fuel burnup assessment of the ITU TRIGA Mark II research reactor using gamma spectroscopy

Z. Boduroglu; A. Kaya; O. Erbay; I. A. Reyhancan; M. S. Kiziltas; T. Akyurek

doi:10.1016/j.net.2025.103941

Full core fuel burnup assessment of the ITU TRIGA Mark II research reactor using gamma spectroscopy

Z. Boduroglu
, A. Kaya
, O. Erbay
, I. A. Reyhancan
, M. S. Kiziltas
, T. Akyurek^*

^*Bu çalışma için yazışmadan sorumlu yazar

Enerji Enstitüsü

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

1 Atıf (Scopus)

Özet

This study investigates the burnup distribution of fuel elements in the ITU TRIGA Mark II research reactor core through gamma spectroscopy using¹³⁷Cs as a burnup indicator. Non-Destructive Assay (NDA) techniques were employed to analyze fuel depletion, utilizing a specialized fuel investigation system installed above the reactor pool. The results indicate that the highest burnup values, exceeding 5 %, were concentrated in the inner core rings (B and C) due to intense neutron flux exposure, while the outer rings (D, E, F) exhibited lower burnup levels. To address this asymmetric distribution, a proposed fuel reshuffling strategy was analyzed, aiming to optimize neutron flux balance and enhance fuel utilization. Also, the strong correlation between¹³⁷Cs activity and burnup values confirms its reliability as a burnup indicator.

Orijinal dil	İngilizce
Makale numarası	103941
Dergi	Nuclear Engineering and Technology
Hacim	58
Basın numarası	2
DOI'lar	https://doi.org/10.1016/j.net.2025.103941
Yayın durumu	Yayınlandı - Şub 2026

Bibliyografik not

Publisher Copyright:
© 2025 Korean Nuclear Society, Published by Elsevier Korea LLC. This is an open access article under the CC BY-NC-ND license. http://creativecommons.org/licenses/by-nc-nd/4.0/

Belgeye Erişim

10.1016/j.net.2025.103941

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{5e69cf4c857548559c851a1a527c63fe,

title = "Full core fuel burnup assessment of the ITU TRIGA Mark II research reactor using gamma spectroscopy",

abstract = "This study investigates the burnup distribution of fuel elements in the ITU TRIGA Mark II research reactor core through gamma spectroscopy using137Cs as a burnup indicator. Non-Destructive Assay (NDA) techniques were employed to analyze fuel depletion, utilizing a specialized fuel investigation system installed above the reactor pool. The results indicate that the highest burnup values, exceeding 5 \%, were concentrated in the inner core rings (B and C) due to intense neutron flux exposure, while the outer rings (D, E, F) exhibited lower burnup levels. To address this asymmetric distribution, a proposed fuel reshuffling strategy was analyzed, aiming to optimize neutron flux balance and enhance fuel utilization. Also, the strong correlation between137Cs activity and burnup values confirms its reliability as a burnup indicator.",

keywords = "Experimental burn-up analysis, Fuel elements, NDA method, TRIGA Mark II reactor",

author = "Z. Boduroglu and A. Kaya and O. Erbay and Reyhancan, \{I. A.\} and Kiziltas, \{M. S.\} and T. Akyurek",

note = "Publisher Copyright: {\textcopyright} 2025 Korean Nuclear Society, Published by Elsevier Korea LLC. This is an open access article under the CC BY-NC-ND license. http://creativecommons.org/licenses/by-nc-nd/4.0/",

year = "2026",

month = feb,

doi = "10.1016/j.net.2025.103941",

language = "English",

volume = "58",

journal = "Nuclear Engineering and Technology",

issn = "1738-5733",

publisher = "Korean Nuclear Society",

number = "2",

}

TY - JOUR

T1 - Full core fuel burnup assessment of the ITU TRIGA Mark II research reactor using gamma spectroscopy

AU - Boduroglu, Z.

AU - Kaya, A.

AU - Erbay, O.

AU - Reyhancan, I. A.

AU - Kiziltas, M. S.

AU - Akyurek, T.

N1 - Publisher Copyright: © 2025 Korean Nuclear Society, Published by Elsevier Korea LLC. This is an open access article under the CC BY-NC-ND license. http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2026/2

Y1 - 2026/2

N2 - This study investigates the burnup distribution of fuel elements in the ITU TRIGA Mark II research reactor core through gamma spectroscopy using137Cs as a burnup indicator. Non-Destructive Assay (NDA) techniques were employed to analyze fuel depletion, utilizing a specialized fuel investigation system installed above the reactor pool. The results indicate that the highest burnup values, exceeding 5 %, were concentrated in the inner core rings (B and C) due to intense neutron flux exposure, while the outer rings (D, E, F) exhibited lower burnup levels. To address this asymmetric distribution, a proposed fuel reshuffling strategy was analyzed, aiming to optimize neutron flux balance and enhance fuel utilization. Also, the strong correlation between137Cs activity and burnup values confirms its reliability as a burnup indicator.

AB - This study investigates the burnup distribution of fuel elements in the ITU TRIGA Mark II research reactor core through gamma spectroscopy using137Cs as a burnup indicator. Non-Destructive Assay (NDA) techniques were employed to analyze fuel depletion, utilizing a specialized fuel investigation system installed above the reactor pool. The results indicate that the highest burnup values, exceeding 5 %, were concentrated in the inner core rings (B and C) due to intense neutron flux exposure, while the outer rings (D, E, F) exhibited lower burnup levels. To address this asymmetric distribution, a proposed fuel reshuffling strategy was analyzed, aiming to optimize neutron flux balance and enhance fuel utilization. Also, the strong correlation between137Cs activity and burnup values confirms its reliability as a burnup indicator.

KW - Experimental burn-up analysis

KW - Fuel elements

KW - NDA method

KW - TRIGA Mark II reactor

UR - https://www.scopus.com/pages/publications/105019204651

U2 - 10.1016/j.net.2025.103941

DO - 10.1016/j.net.2025.103941

M3 - Article

AN - SCOPUS:105019204651

SN - 1738-5733

VL - 58

JO - Nuclear Engineering and Technology

JF - Nuclear Engineering and Technology

IS - 2

M1 - 103941

ER -

Full core fuel burnup assessment of the ITU TRIGA Mark II research reactor using gamma spectroscopy

Özet

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