A bright star visible without a telescope has puzzled X-ray astronomers for decades, producing high-energy radiation that no ...

A hidden white dwarf feeding on the star is the source of the unusual X-ray emissions from the stellar system.

A PAPER on gamma-radiography was read by Mr. C. Croxson at a meeting of the Industrial Radiology Group of the Institute of Physics, held at Loughborough College, Loughborough, on February 27. Mr.

Lead screens have a significant impact on image intensity (pixel value) in gamma exposures, particularly with higher-energy isotopes like Iridium-192. Thin lead front screens have a greater ...