Speaker
Dimiter Balabanski
(ELI-NP, IFIN-HH)
Description
The possibilities for photofission experiments at the new ELI-NP facility will be discussed. At ELI-NP, high power laser systems together with a very brilliant gamma beam are the main research tools [1-3]. The status of the project will be reported. The $\gamma$-beam system and the expected performance of the electron accelerator and the production lasers will be discussed. The targeted operational parameters of the $\gamma$ beam will be described.
At ELI-NP, next to research on fission barriers through measurements of transmission resonances [4,5] and investigation of rare fission events, such as ternary photofission [6], the possibilities for studies of the structure of neutron-rich exotic nuclei are considered. Two types of experiments related to the structure of fission fragments will be discussed, in-beam spectroscopy of fission fragments and separation of the isotopes of interest with the IGISOL technique, and experiments with them, such as $\beta$-decay or mass measurements.
Four basic set-ups are under consideration for these studies, namely a double Bragg TPC, a general purpose charge-particle detector array, based on THGEM technology for fragment identification, an IGISOL beam line and the ELIADE Ge detector array, coupled to different ancillary detectors for in-beam spectroscopy will be discussed, taking into consideration the optimal use of the $\gamma$ beam.
The expected production yields in photofission will be discussed and the performance of the IGISOL beam line, which is under consideration within the ELI-NP project, will be discussed.
References:
[1] ELI-NP White Book, http://www.eli-np.ro/documents/ELI-NP_WhiteBook.pdf
[2] N.V. Zamfir, EPJ Web of Conferences 66, 11043 (2014)
[3] D.L. Balabanski et al., Acta Phys. Pol. B 45, 483 (2014)
[4] P.G. Thirolf et al., EPJ Web of Conferences 38, 08001 (2012)
[5] L. Scige et al., Phys. Rev. C 87, 044321 (2013)
[6] M. Verboven, E. Jacobs, D. De Frenne, Phys. Rev. C 49, 991 (1996)
* This work is supported by Extreme Light Infrastructure – Nuclear Physics (ELI-NP) – Phase I, a project co-financed by the European Union through the European Regional Development Fund.
Primary author
Dimiter Balabanski
(ELI-NP, IFIN-HH)
