NATALIE: A 32 detector integrated acquisition system to characterize laser produced energetic particles with nuclear techniques
Language
en
Article de revue
This item was published in
Review of Scientific Instruments. 2011-02, vol. 82, p. 023302
American Institute of Physics
English Abstract
We present a stand-alone system to characterize the high-energy particles emitted in the interaction of ultrahigh intensity laser pulses with matter. According to the laser and target characteristics, electrons or protons ...Read more >
We present a stand-alone system to characterize the high-energy particles emitted in the interaction of ultrahigh intensity laser pulses with matter. According to the laser and target characteristics, electrons or protons are produced with energies higher than a few mega electron volts. Selected material samples can, therefore, be activated via nuclear reactions. A multidetector, named NATALIE, has been developed to count the β+ activity of these irradiated samples. The coincidence technique used, designed in an integrated system, results in very low background in the data, which is required for low activity measurements. It, therefore, allows a good precision on the nuclear activation yields of the produced radionuclides. The system allows high counting rates and online correction of the dead time. It also provides, online, a quick control of the experiment. Geant4 simulations are used at different steps of the data analysis to deduce, from the measured activities, the energy and angular distributions of the laser-induced particle beams. Two applications are presented to illustrate the characterization of electrons and protons.Read less <
English Keywords
beta-ray detection
data acquisition
data analysis
electron sources
high energy physics instrumentation computing
nuclear chemical analysis
radioisotopes
solid scintillation detectors
Origin
Hal imported