Purification of Kr-85 Radiation Source

Blind Source Separation of Audio Signals Using Wvd-kr Algorithm

Under-determined blind source separation aims to separate N non-stationary sources from M (M<N) mixtures. Paper presents a time-frequency approach (TF) to under-determined blind source separation of N non-stationary sources from M mixtures(M<N).It is based on Wigner-Ville distribution and Khatri-Rao product. Improved method involves a two step approach which involves the estimation of the mixin...

THE EXTENDED LAW OF CORRESPONDING - STATES AND THE INTERMOLECULAR POTENTIALS FOR Ar-Ar, Ar-Kr AND Kr-Kr

An inversion procedure is used to obtain from the extended principle of corresponding - states the pair interaction potentials for argon, krypton and its mixture over a tetnperature range from absolute zero to the onset of ionization. The experimentally-reduced viscosity collision integrals obtained from the corresponding - states correlation have been inverted directly to give the reduced...

Residue of horse serum purification as a nitrogen source for growth of microorganisms, l-Clostridia

Automated sampling and extraction of krypton from small air samples for Kr-85 measurement using Atom Trap Trace Analysis

This paper introduces the krypton sampling and extraction facilities currently developed at the Centre for Science and Peace Research to collect and extract the krypton content from small air samples. The extraction unit able to isolate the krypton in small ambient air samples with high speed and high efficiency using a combination of cryogenic distillation and gas chromatography. Air samples a...

Optimum radiation source for radiation therapy of skin cancer

Several different applicators have been designed for treatment of skin cancers, such as scalp, hand, and legs using Ir-192 HDR brachytherapy sources (IR-HDRS), miniature electronic brachytherapy sources (eBT), and external electron beam radiation therapy (EEBRT). Although, all of these methodologies may deliver the desired radiation dose to the skin, but the dose to the underlying bone may beco...