A twin Frisch-grid ionization chamber as a selective detector for the delayed gamma-spectroscopy of fission fragments

作者: L Gaudefroy , T Roger , J Pancin , C Spitaels , J Aupiais

DOI: 10.1016/J.NIMA.2017.02.071

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摘要: Abstract We present a twin Frisch-grid ionization chamber. The detector is meant to provide high selective power for the study of delayed gamma-ray spectroscopy fission fragments produced via 252Cf spontaneous fission. A mean energy resolution on kinetic 675 keV (FWHM) achieved and allows us resolve masses events where neutron emission not energetically possible. mass measured these particular amounts 0.54 units (FWHM). For with 4 reported. Information fragment angle 0.1 difference cosines determined both halves detector. charge 4.5 also demonstrated.

参考文章(21)
R. E. Sund, Hans Weber, V. V. Verbinski, Isomeric gamma rays from 235 U(n,f) and 239 Pu(n,f) for times less than 1 μsec after fission Physical Review C. ,vol. 10, pp. 853- 870 ,(1974) , 10.1103/PHYSREVC.10.853
A. Al-Adili, F.-J. Hambsch, S. Pomp, S. Oberstedt, M. Vidali, Fragment-mass, kinetic energy, and angular distributions for U 234 ( n , f ) at incident neutron energies from E n = 0.2 MeV to 5.0 MeV Physical Review C. ,vol. 93, pp. 034603- ,(2016) , 10.1103/PHYSREVC.93.034603
F.-J Hambsch, J Van Aarle, R Vogt, Is there a pulse height defect for methane Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 361, pp. 257- 262 ,(1995) , 10.1016/0168-9002(95)00190-5
A. Al-Adili, F.-J. Hambsch, R. Bencardino, S. Pomp, S. Oberstedt, Sh. Zeynalov, On the Frisch–Grid signal in ionization chambers Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 671, pp. 103- 107 ,(2012) , 10.1016/J.NIMA.2011.12.047
S. Hilaire, M. Girod, Large-scale mean-field calculations from proton to neutron drip lines using the D1S Gogny force European Physical Journal A. ,vol. 33, pp. 237- 241 ,(2007) , 10.1140/EPJA/I2007-10450-2
G. Barreau, A. Sicre, F. Caïtucoli, M. Asghar, T.P. Doan, B. Leroux, G. Martinez, T. Benfoughal, Fission-fragment energy correlation measurements for 252Cf(sf) and structures in far-out asymmetric fission Nuclear Physics A. ,vol. 432, pp. 411- 420 ,(1985) , 10.1016/0375-9474(85)90251-9
C. Budtz-Jørgensen, H.-H. Knitter, Ch. Straede, F.-J. Hambsch, R. Vogt, A twin ionization chamber for fission fragment detection Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 258, pp. 209- 220 ,(1987) , 10.1016/0168-9002(87)90058-1
S. Pauker, N.H. Steiger-Shafrir, Transfer properties of 252Cf and their use for source preparation Nuclear Instruments and Methods. ,vol. 91, pp. 557- 563 ,(1971) , 10.1016/0029-554X(71)90678-1
W. Wätzig, W. Westmeier, Alfun - A program for the evaluation of complex alpha-spectra Nuclear Instruments and Methods. ,vol. 153, pp. 517- 524 ,(1978) , 10.1016/0029-554X(78)91001-7