The week after Easter, just before we went on vacation, I got a very nice email. It read as follows:
Subject: ND 2016 - Decision on your abstractDear Mrs. Rose,The organizers are pleased to note that your abstract ND/793 was accepted as a regular contribution to the conference. The slot allocated to your contribution is 20 minutes: 15 minutes for your presentation and 5 minutes for questions.To confirm your attendance please complete at your earliest possible convenience your full registration for the conference at www.nd2016.eu (General Information, drop-down menu: Registration). You will be entitled to submit a regular paper for the proceedings.Yours sincerely,Arjan Plompen,On behalf of the Organizing Committee
Prompt fission gamma ray emission from the (d,p)-induced fission of 233U
Prompt fission gamma-ray spectra have been measured in an experiment at the Oslo Cyclotron Laboratory (OCL), using a 12.5 MeV deuteron beam on a 233U target.Charged particles were recorded with the SiRi particle telescope, in coincidence with γ-radiation in the CACTUS γ-detector system, and fission fragments were recorded with the NIFF PPAC-detectors . CACTUS consists of 28 5”5” NaI(Tl) crystals, mounted on a spherical frame; with a total efficiency of 15%.
The (d,pf) reaction has been used as a “surrogate” reaction for the (n, f) reaction, and characteristics such as the prompt fission gamma ray spectra, and the γ multiplicity have been studied. Both characteristics have been extracted as functions of excitation energy, in the energy range 5-10 MeV, in the fissioning nucleus. The results are compared to a similar experiment from the OCL on the 239Pu isotope.
The setup enables us to study the nuclear level density and the gamma ray strength function, and these properties have also been extracted for the 234U isotope, from the same experiment. These results will also be presented.