This report describes the design and development of a plastic scintillating high energy neutron detector to be implemented as a micro-class satellite payload. The primary function of this detector is to identify and characterize the energy distribution of solar accelerated neutrons resulting from massive solar events. Accelerated neutrons will be identified by a pulse counting system using the ...

The major effect of ionizing radiation in cells is to destroy the ability of cells to divide by damaging their DNA strands. Extensive researches are leading to an understanding that the characteristics of high LET radiations such as fast neutrons and low LET radiations like protons, photons and electrons are different; because of different types of their interactions with tissue. Low LET radiat...

We present the development and characterization of thin tile scintillator detectors with silicon photomultiplier (SiPM) readout for use in a multi-layer fast-neutron tracker. The tracker is based on interleaved Timepix and plastic scintillator layers [1]. Fast-neutrons recoil protons in the plastic scintillators, which may then travel to and stop in the neighboring Timepix. Using the measured r...

Before its demise DIANA Hi-TECH, LLC, demonstrated the use of two 50 kJoule Plasma Focus devices for the copius production of fast neutrons, x-rays and radio-isotopes. Such a device is suitable for fast neutron non invasive interogation of contra-band materials including hidden nuclear materials. It could be particularly useful for a fast and fail safe interogation of large cargo containers, or...

ARLY investigators in radiation genetics claimed that X-rays of different wave E lengths, gamma rays, and beta particles of radium were equally effective in inducing sex-linked recessive mutations in Drosophila melanogaster and that densely ionizing radiations such as recoil protons from neutrons and alpha particles were less efficient than the less densely ionizing X, gamma, and beta radiation...

Gamma-ray emission from special nuclear material (SNM) is relatively easy to shield detection using modest amounts of high-Z material. In contrast, fast-neutrons are much more penetrating and can escape thick shielding without losing significant energy. Furthermore, fast neutrons provide a clear unambiguous signature the presence SNM with few competing natural background sources. The challenge ...