Bismuth germanate (BGO) is a well known high density scintillating material widely used in many applications such as energy physics and medical imaging. silicate (BSO) features properties similar to BGO terms of stopping power Cherenkov photon yield with lower scintillation light output but faster decay time, thus being more attractive for high-rate environments. Mixed crystals Bi 4 (Ge x Si 1 ...

Bismuth germanate (BGO) is a well known high density scintillating material widely used in many applications such as energy physics and medical imaging. silicate (BSO) features properties similar to BGO terms of stopping power Cherenkov photon yield with lower scintillation light output but faster decay time, thus being more attractive for high-rate environments. Mixed crystals Bi 4 (Ge x Si 1 ...

The paper analyzes the problems that arise when assessing energy technical light output by existing methods. A modern alternative method for of various scintillators produced Institute Scintillation Materials National Academy Sciences Ukraine is described.
 possibility evaluating any scintillator relative comparison with a reference stilbene-based known shown. resulting ratio responses rec...

Scintillators play a key role in the detection chain of several applications which rely on use ionizing radiation, and it is often mandatory to extract detect generated scintillation light as efficiently possible. Typical inorganic scintillators do however feature high index refraction, impacts extraction efficiency negative way. Furthermore, such preclinical Positron Emission Tomography (PET) ...

Intercalation of very long molecules into the structure multi-layered graphene oxide (GO) was studied using example 1-hexadecanol (C16), an alcohol molecule with 16 carbon atoms. Brodie graphite (BGO) immersed in excess liquid C16 just above melting point shows expansion c-unit cell parameter from ∼6 Å to ∼48.76 forming a two densely packed layers perpendicular orientation relative GO planes (α...

A small animal positron emission tomography (PET) instrument using a high-resolution solid-state detector insert in a conventional PET system was investigated for its potential to achieve sub-millimeter spatial resolution for mouse imaging. Monte Carlo simulations were used to estimate the effect of detector configurations (thickness, length and radius) on sensitivity. From this initial study, ...

It is well known that Intercrystal scattering (ICS) and the parallax effect are two major resolution limiting parameters in current PET detector designs with block detectors. More recently for the purpose of resolution recovery, investigators and manufacturers have attempted to accurately model these effects into the image reconstruction task. In this study we utilized the MCNP4C Monte Carlo co...

We report results of an experiment conducted in May 1997 to measure CdZnTe background and background reduction schemes in space flight conditions similar to those of proposed hard X-ray astrophysics missions. A 1 cm CdZnTe detector was placed adjacent to a thick BGO anticoincidence shield and flown piggybacked onto the EXITE2 scientific balloon payload. The planar shield was designed to veto ba...