The underlying mechanism involved in the production of very neutron-rich nuclides using projectile fragmentation is studied with an abrasion-ablation ~AA! model. The AA model suggests that very neutron-rich nuclides are produced by removing nearly all the required protons in the nonequilibrium abrasion stage, with minimal evaporation of neutrons in the ablation stage—‘‘cold fragmentation.’’ Fur...

To obtain high quality of results in gamma spectrometry, it is necessary to calibrate energy and efficiency of gamma detector as accurate as possible. To achieve this aim, utilizing the convenient gamma source can be very useful. Therefore, purpose of present study was to evaluate the determined efficiency by single point gamma sources and multi-nuclides gamma source in a high purity germanium ...

As a quite novel concept for producing pure flavour neutrino beams, the beta-beam project presents several R&D challenges requiring careful studies. In the centre of these, the production of radioactive ion beams of beta-decaying nuclides of intensities orders of magnitudes higher than achieved so far has triggered various investigations. This article focuses on the production and beam preparat...

It is now generally recognized in most countries that Radon-222 is the principal source of potentially hazard1,2 ous radiation source in the general population. Simple devices used to measure Radon levels in the air record the number of alpha particle tracks, evidence of the radioactive disintegration of Radon. The unit of radioactivity of nuclides (isotopes of elements that disintegrate sponta...

Pectin substances are valuable components of plant cells. They have properties that allow them to be used in various industries - water retaining, gel-forming and complexing abilities. The most important property has a positive impact on human health is the ability. It pectin bind heavy toxic metals, radioactive nuclides, free radicals other toxins insoluble complexes remove from body. Due thei...

From the lightest Hydrogen isotopes up to recently synthesized Oganesson ( Z = 118), it is estimated that as many about 8,000 atomic nuclei could exist in nature. Most of these are too short-lived be occurring on Earth, but they play an essential role astrophysical events such supernova explosions or neutron star mergers presumed at origin most heavy elements Universe. Understanding structure, ...

Non-standard positron emission tomography (PET) nuclides bring with them the prospect of new chemistry leading the way to novel approaches for targeted imaging and therapy. In particular, the kinetic energy of the positron of some of these nuclides is high (as much as 4 MeV) and, thus, a highly specific PET probe can be very lethal to cancerous cells. However, the high positron energy will degr...

abstract uranium as a natural radioactive heavy metal widely disperses throughout the earth's crust. in many cases, the natural abundance has been re-distributed due to anthropogenic activities, resulting in radionuclide contamination in groundwater and surface soil. uranium through the plant uptake can enter the chain. the degree of speciation of radio nuclides in soils in areas with differing...