Detectors for Neutrons from a Short-Lived Plasma

Abnormally deep penetration of hydrogen into niobium under the influence of the pulse high-temperature plasma

“…Hydrogen and deu terium plasma were used for studying shock waves. When the deuterium plasma acted on samples, the neutron yield from the 2 D 1+ + 2 D 1+ thermonuclear reaction was measured by neutron detectors described in [6,7].…”

“…The pulse repetition rate of the PF 4 plant exceeded 5-6 min to decrease the target heating. In this case the neutron yield from the hydro gen plasma was not naturally observed [6,7] and the neutron background level for both detectors was about 30-40 pulses for a 10 s interval. For convenience, we introduce the symbolic designation of this Nb foil assembly in the form of 1 Nb-1 2 | 1 Nb-2 2 | 1 Nb-3 2 .…”

“…[3][4][5][6][7][8]. Figure 9 shows the summary measured integral hydrogen concentrations obtained by the ERD method.…”