ELFT HÍRADÓ

[Belgya Tamas <belgya.tamas AT energia.mta.hu>]

Szemináriumi meghívó!

Tisztelt kollégák!

Prof. Andreas Oberstedt fog előadást tartani a IV. generációs reaktorok 
tervezéséhez szükséges nukleáris adatok méréséről. Andreas jelenleg egy 
ilyen mérésen vesz részt a Nukleáris analitikai és radiográfiai 
laboratórium PGAA-NIPS mérőberendezésénél az EU FP7 CHANDA projekt 
támogatásával.

Az előadás időpontja: 2015. november 26 (csütörtök), de. 10 óra
Helyszíne: KFKI telephelye, MTA EK EKBI előadóterme a XXI/B ép. 3. 
emeletén.

Az előadás címe és absztraktja:

Prompt particle emission from fission – progress in measurements, 
systematics and predictions

A. Oberstedt

Fundamental Physics, Chalmers University of Technology, 41296 Göteborg, 
Sweden

Abstract

During the last years we have been measuring prompt-fission particle 
emission, motivated by OECD/NEA requests for new values especially for 
gamma-ray multiplicities and mean photon energies, in particular for 
235U and 239Pu. Both isotopes are considered the most important ones 
with respect to the modelling of innovative cores for fast Generation-IV 
reactors. Our experimental techniques are discussed and results are 
presented.
These results are investigated in terms of a revised version of 
systematics for prompt fission gamma-ray spectra (PFGS) characteristics 
as function of both atomic and mass number of the compound system, which 
allows estimating average gamma-ray multiplicity, mean and total photon 
energy in cases, where target nuclei are not available or not accessible 
experimentally. While this previously was done for thermal-neutron 
induced and spontaneous fission, we show how PFGS characteristics may be 
predicted for fission induced also by fast neutrons, e.g. on 238U. The 
results from these calculations are compared to corresponding 
experimental and theoretical values. On-going and future projects will 
be presented as well.

Üdvözlettel, Belgya Tamás

--
Dr. Tamas Belgya
Deputy General Director
Centre for Energy Research
Budapest, Hungary
Reply to: 
tamas.belgya AT energia.mta.hu
Phone: +36-1-3922531, +36-1-3922539