Open AccessA double-Bragg detector with digital signal processing for the event-by-event study of fission in actinide nuclei
Author(s) -
R.J.W. Frost,
A. G. Smith
Publication year - 2016
Publication title -
international journal of modern physics. conference series
Language(s) - English
Resource type - Journals
ISSN - 2010-1945
DOI - 10.1142/s2010194516602313
Subject(s) - fission , detector , physics , anode , nuclear physics , signal (programming language) , ionization chamber , actinide , spontaneous fission , event (particle physics) , cathode , particle detector , electron , charge (physics) , atomic physics , ionization , optics , neutron , electrode , electrical engineering , computer science , particle physics , ion , engineering , quantum mechanics , programming language
In the current paper, a windowless double-Bragg chamber incorporating full signal digitisation has been developed for the purpose of studying the energy (E), mass (A), charge (Z) and angular distributions ([Formula: see text], [Formula: see text] of nuclei generated by fission. This device measures E for each fission fragment by collection of the charge produced during ionisation of the fill gas. Subsequent digitisation of the signals from each of two anodes yields information on dE/dx, as well as electron collection time, which can be further used for polar angle ([Formula: see text] determination. Frisch-grid and cathode signals are also digitised and are used both for anode signal correction and to produce further information on [Formula: see text]. To verify the operation of this detector, three angular determination techniques from the literature were implemented, and the results were found to be consistent with the referenced paper. Current results from the spontaneous fission of [Formula: see text]Cf are presented.