Speaker
Salvatore Cavallaro
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.1018.pdf
Nuclear reaction ion discrimination in plasma-laser interactions
by coupling contiguous TOF-SiC devices
S. Cavallaro1, M. Mazzillo2,L. Calcagno1, and A. Sciuto3
1
Dept.of Physics and Astronomy, University of Catania, Catania, Italy
2
ST-Microelectronics, Str.le Primosole,50 Catania, Italy
3
CNR-IMM, VIII strada n.5, 95121 Catania, Italy
Nuclear reactions produced in high intensity laser-target interaction involve, depending on atomic
composition of the target, the simultaneous presence of different ion species, as proton, deuteron,
3
He, 4He, etc. Typically, nuclear reactions, as d+ d, d+3He, p+7Li, d+6Li, d+7Li, p+11B, produce
output-ion energies of several MeV whose contributions can be mixed its self or to that of
impurity protons. Ion discrimination is basically performed by means of analysis of pits observed
on tracks detector, which is critically dependent on calibration, or qualitatively evidenced by fast
TOF devices based on SiC and diamond detectors. By using these TOF devices , if two ion
species are present in the same spectrum, the discrimination of their contribution is not directly
attainable. Recently, a new method which allows to discriminate the contribution of two ion
species in the wide energy range of the involved nuclear reactions, has been published [1]. It is
based on charge response of two TOF-SiC contiguous detectors to the two ion species. The
response of the detectors of suitable active thicknesses, associated to different energy losses, can
determine the ion specific contribution in each TOF interval. In this contribution an extension of
the method to more complexes cases of ion discrimination, with various detector characteristics,
is presented and discussed.
.
[1] S. Cavallaro
“Plasma-laser ion discrimination by TOF technique applied to coupled SiC detectors.” EPJ Web of Conferences 167,
04003 (2018).https://doi.org/10.1051/epjconf/ 201816704003 PPLA 2017
