Application of neutron generators for high explosives, toxic agents and fissile material detection

Efficiency of background suppression by tagged neutron technology

“…The DAC system was tested with the experimental testbench included the NG-27 neutron generator (NG) manufactured by Dukhov All-Russian Research Institute of Automatics [1] with the built-in 9-pixel semiconductor alpha-detector. The tagged neutrons were directed to the graphite box (7 cm in height, 5 cm in width, 3 cm in thickness).…”

“…Last years, the nanosecond tagged neutron technology (NTNT) has been rapidly progressing [1]. This technology provides effective (by 2-4 orders of magnitude) suppression of background by spatial and time discrimination of events.…”

“…For practical application of NTNT, the multi-detector systems and high intensity (up to 1 · 10 8 1/s) neutron generator should be used [1]. The total intensity of signals can exceed 1 · 10 6 1/s from all gamma-detectors and 1 · 10 7 1/s from all alpha-detectors.…”

A Novel Compact Pyroelectric X-Ray and Neutron Source

“…While PNG power consumption is higher than that of pyroelectric sources, it is still typically only 30-200 W 56 , which is not difficult to provide. However, conventional…”

“…It is also important to note that while PNGs can be used to generate 10 7 -10 10 n / s, certain homeland security applications such as luggage scanning require limiting the neutron yield to 10 6 -10 7 n / s due to personnel safety concerns 56 . Therefore, in some respects, the lower neutron yield from a pyroelectric source can be an advantage instead of a limitation.…”