PRELIMINARY RESULTS OF A 2V-2E FISSION FRAGMENT SPECTROMETER

摘要: L. E. Heffern, R. Blakeley, J. Cole and A. HechtUniversity of New MexicoAlbuquerque, NM 87111lheffern@unm.edu; rblakele@unm.edu; hecht@unm.edu1. INTRODUCTIONFission fragment inventories play a key role in manyareas nuclear science from simulation fission-ing systems to diagnostics for optimal reactor op-eration waste disposal. experimental dataare needed further reduce the uncertainty thecurrent standard data as well investigating fissionfragment distributions incident neutron energieswhere no currently exist.The Spectrometer Ion Detection Fission Re-search (SPIDER) [1] project at Los Alamos Na-tional Laboratory (LANL) is intended be high-resolution, double velocity, energy (2v-2E)mass spectrometer [2] event-by-event identification. A time-of-flight measure-ment made via secondary electron detection andthe kinetic measured utilizing anaxial ion chamber (IC) design [3]. The goal thedetection scheme obtain  1 amu mass reso-lution. As contribution SPIDER project, asingle arm has been designed constructed theUniversity Mexico (UNM) verify LANLresults. Fig.1 provides an illustration full 2v-2E spectrometer.Figure 1.