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 ...

Recent work at Brookhaven has focussed on the development of polarized neutron spectrometers and reflects the resurgence of interest in polarization analysis. Both Heusler crystals and FeGe multilayers used in conjunction with pyrolytic graphite crystals have been tested as polarizing monochromators on a triple-axis instrument. The goal is to first obtain polarized beams of adequate intensity a...

The Legnaro National Laboratories (LNL) of the Italian National Institute of Nuclear Physics (INFN) are developing a neutron source within the SPES-BNCT project. An accelerator-based, high-flux thermal neutron beam facility is planned for the experimental treatment of skin melanoma. Neutrons are produced via the Be(p,n) reaction by bombarding a 1 mm thick beryllium target with 5 MeV protons gen...

We present a preliminary analysis of the photon beam asymmetry observable (Σ) from the photoproduction reaction channel γn → π−p. This new data was obtained using the near-4π CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory, USA, employing a linearly polarised photon beam with an energy range 1.1 2.3 GeV. The measurement will provide new data to address the poorly established ...

Lunar Prospector gamma-ray spectrometer spectra along with counting rate maps of thorium, potassium, and iron delineate large compositional variations over the lunar surface. Thorium and potassium are highly concentrated in and around the nearside western maria and less so in the South Pole-Aitken basin. Counting rate maps of iron gamma-rays show a surface iron distribution that is in general a...

Abstract Tangential compact neutron emission spectrometer (CNES) based on the Cs 2 LiYCl 6 :Ce with 7 Li-enrichment (CLYC7) scintillator is newly installed in Large Helical Device (LHD). Measurement of energy spectrum was performed using CNES tangential neutral beam (NB) heated deuterium plasma discharges. The Doppler shift according to direction NB injection has been obtained. When fast ions m...