BURNUP CALCULATIONS OF THE JSI TRIGA REACTOR FUEL AND COMPARISON WITH MEASUREMENTS

نویسندگان

چکیده

Fuel burnup of the JSI TRIGA was calculated by simulating complete operational history consisting 240 different core configurations from 1966 to 2020. At moment we are unable perform measurements, e.g. gamma spectroscopy on burned fuel elements, hence used weekly measured excess reactivity as a reference point verify reactivity. Changes in due were assumed be linear and this assumption verified for intervals smaller than 3 MWd / kg(HM) . The comparison performed 46 with type elements. Serpent-2 calculations decently predict rate change cases, 52 % withing 1 σ 86.9 within 2 measurements total number cases. Additional analysis comparing unit cell types. Four types analyse changes LEU HEU fuel, where positive feedback observed burnable absorbers. WIMSD-5B compared unit-cell basis good agreement 200 pcm large observed. In addition neutron spectrum investigated using 4 increase thermal peak decrease fast typical burnups 20 , which approximately represents at moment.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Present Services at the Triga Mark Ii Reactor of the Jsi

The 250 kW TRIGA Mark II research reactor of the Jožef Stefan Institute (JSI) has been in operation since 1966. The reactor went critical on 30 May 1966. It is a light water reactor, with solid fuel elements in which the zirconium hydride moderator is homogeneously distributed between enriched uranium. The reactor core consists of about 70 fuel elements, which are arranged in an annular lattice...

متن کامل

TRIGA fuel burn-up calculations and its confirmation

The Cesium (Cs-137) isotopic concentration due to irradiation of TRIGA Fuel Elements FE(s) is calculated andmeasured at the Atominstitute (ATI) of ViennaUniversity of Technology (VUT). The Cs-137 isotope, as proved burn-up indicator, was applied to determine the burn-up of the TRIGAMark II research reactor FE. This article presents the calculations andmeasurements of the Cs-137 isotope and its ...

متن کامل

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

15 صفحه اول

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Epj Web of Conferences

سال: 2021

ISSN: ['2101-6275', '2100-014X']

DOI: https://doi.org/10.1051/epjconf/202124708009