introduction: nowadays new radiochromic films have an essential role in radiotherapy dosimetry. properties such as high sensitivity, good reproducibility, high spatial resolution, easy readout and portability have made them attractive for dosimetry, especially in high-dose-gradient regions. material and methods: in this study, electron-beam dose distributions in homogenous and heterogeneous pha...

the effect of evaporation rate on structural, morphological and optical properties of electron beam evaporated cds thin films have been investigated. cds thin film deposited by electron beam evaporation method in 12nm/min and 60nm/min evaporation rates on glass substrates. x-ray diffraction, scanning electron microscopy, uv-vis-nir spectroscopy and atomic force microscopy were used to character...

cross linking of high density polyethylene (hdpe) was first performed via high energy10 mev electron beam (eb) irradiation. hdpe was also cross linked withdicumyle peroxide (dcp).the gel content of samples was determined by solvent extraction.degree of cross linking was evaluated by hot set apparatus; as well .in order to clarify the effectof nature of cross linking, correlation of electrical p...

a total of 300 one-day old male broilers (cobb 500) were randomly divided into four treatment groups. the groups comprised of 15 birds each, and were defined by diet and the birds in each group were fed 0 (control), 3, 5, or 7 kgy electron-beam irradiated diets. a total of 5 replicates were performed. the chemical composition of the diet was not affected by irradiation.irradiation doses of 5 an...

Commercially pure titanium Ti Grade 2, 2 mm in thickness, was welded to thick nickel alloy 201 with electron beam welding. Various welding parameters were used create the butt-welded joints. The innovation herein consists of two dissimilar metals that are declared non-weldable. current for 40–70 mA and speeds 20–50 mm/s. In this experiment, we tested offsets beam, which 100–300 μm side 200 side...

This article presents the Laser Beam Direct Energy Deposition (DED-LB) process as a method to build graded austenitic-to-martensitic steel junction. Builds were obtained by varying ratio of two powders during DED-LB processing. Samples with gradual transitions successfully using high dilution rate from one layer next. Long austenitic grains are observed on 316 L side while martensitic Fe–9Cr–1M...