Development of a gas filled magnet for FIPPS phase II

Y.H. Kim (1) , M. Thomas (1) , H. Faust (1) , C. Michelagnoli (1) , U. Köster (1) , F. Kandzia (1) , M. Jentschel (1) , E. Ruiz-Martinez (1) , P. Mutti (1) , E. Lelièvre-Berna (1) , H. Schwab (1) , E. Froidefond (2) , G. Kessedjian (2) , O. Meplan (2) , G. Simpson (2) , A. Chebboubi (3) , T. Materna (4)

1 ILL - Institut Laue-Langevin
2 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
3 CEA Cadarache
4 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers

The Fission Product Prompt γ-ray Spectrometer (FIPPS) is a new instrument of the Institut Laue-Langevin (ILL) for the spectroscopy of nuclei produced after neutron induced reactions. The future upgrade of the instrument aims to explore the neutron-rich region of the nuclear chart with higher selectivity by identifying the fragments produced after neutron induced fission. The Gas-Filled-Magnet (GFM) technique has been chosen in order to obtain a good mass separation (<4 amu at A = 150) and a large geometrical and momentum acceptance (>50 msr and P/P > 10%). A GFM design consisting of a 1/r magnetic field index and Thales circle-shaped entrance and exit magnet edges is proposed. The characteristic of the magnet is presented with realistic magnetic field calculations and Monte-Carlo simulations.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

Y.H. Kim, M. Thomas, H. Faust, C. Michelagnoli, U. Köster, et al.. Development of a gas filled magnet for FIPPS phase II. 18th International Conference on Electromagnetic Isotope Separators and Related Topics, Sep 2018, Geneva, Switzerland. pp.269-271, ⟨10.1016/j.nimb.2019.05.022⟩. ⟨hal-02272613⟩