Irradiation effects on thin foils of bulk YBa, Cu, 0, _ x have been studied in a transmission electron microscope using lOO-, 150-, 200-, 250-, and 300-keV electrons at 83 and 300 K. The disordering of the oxygen atoms and vacancies in the O(4) and 0( 5) sites in the Cu-0 planes during irradiation was monitored by measuring the splitting of the (li0) diffraction spots in the [OOl ] diffraction ...

Background: For preclinical evaluations of radiopharmaceuticals, most studies are carried out on mice. Values of electron specific absorbed fractions (SAF) have had vital role in the assessment of absorbed dose. In past studies, electron specific absorbed fractions were given for limited source target pairs using older reports of human organ compositions.Objective: Electron specific absorbed fr...

This paper presents our studies on surface modification of silicone elastomer by collagen grafting/coating and electron beam irradiation. Two types of collagen hydrolysates with different molecular weights were obtained and characterized, which were used in experiments. Both silicone elastomer crosslinking and collagen grafting on the surface of silicone elastomer were achieved by electron beam...

Irradiation-induced vacancy defects in multiwalled (MW) boron nitride nanotubes (BNNTs) are investigated via in situ high-resolution transmission electron microscope operated at 80 kV, with a homogeneous distribution of electron beam intensity. During the irradiation triangle-shaped vacancy defects are gradually generated in MW BNNTs under a mediate electron current density (30 A cm(-2)), by kn...