Abstract
A novel detector has been used, in order to perform measurements of spontaneous fission to α-decay ratios for 240Pu, 242Pu and 252Cf isotopes. The detectors are based on the well-known technique of liquid scintillating counting. The principle and advantages of the use of such detectors in nuclear physics is discussed. The application to the characterization of spontaneous fission is described and it is demonstrated that highly precise measurements are possible, and that the main limit is due to the isotopic content knowledge of the measured samples.
Highlights
[1] a new kind of active target has been proposed in the context of nuclear physics experiments
Measurements of fission cross sections, spontaneous fission half-lives, prompt particle emission in fission, (n,xn) reactions or radiative capture cross sections can be envisaged. It can be used in nuclear physics experiments whenever a veto or trigger for fission events is needed
One can deduce from relation (2) and (3) that the spontaneous fission half-life is given by: TTSSSS = (1 + rr) TT1/2 (4)
Summary
[1] a new kind of active target has been proposed in the context of nuclear physics experiments. It is based on the well-known technique of the liquid scintillating counting. Measurements of fission cross sections, spontaneous fission half-lives, prompt particle emission in fission, (n,xn) reactions or radiative capture cross sections can be envisaged. It can be used in nuclear physics experiments whenever a veto or trigger for fission events is needed. One of the advantages of such kind of active target is that fission fragments are stopped within a short time
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