Spectral/target activity of short lived radio isotope in pulsed plasma accelerator.
Accelerated deuteron spectra from magnetic spectrometry and graphite bombardment by such deuterons were used to produce short-lived radionuclides in NX2 plasma focus. The experiments show one order of magnitude difference between the activity generated by these techniques. The average activity of NX2 is 5.2 kBq and the highest activity for the best shot is about 40 kBq.
Magnetic spectrometry of high energy deuteron beams from pulsed plasma system
A detailed and precise study of high energy deuteron beams from a plasma focus device shows that they follow a non-power law distribution, unlike most of the other works. This is in agreement with our previous studies using a direct and unambiguous diagnostic of the activation yield-ratio technique. It is possible that the E−n dependence effectively terminates at some maximum deuteron energy. The experimental results show that the spectrum increases to very high energies whereas the power law fit fails. A unique feature of the magnetic spectrometry experimental arrangement, in this work, is that the pinhole holder also functions as a Faraday cup for time-resolved measurements of the deuteron beam.
Ion-beam and neutron production in a low-energy plasma focus
Experimental results related to deuteron-beam production and its correlation with the neutron yield and hard x-ray production in a low-energy plasma focus device (30 kV, 5 kJ) are presented. After performing corrections in the ion energy spectrum (within an ion energy range from 50 keV to 1.5 MeV) for elastic and inelastic interactions of the ions with the background gas, it is found that the ion density at low ion energy is very high and plays an important role in the neutron production of this plasma focus device.