Exposure to a small number of high-energy heavy charged particles (HZE ions), as found in the deep space environment, could significantly affect astronaut health following prolonged periods of space travel if these ions induce mutations and related cancers. In this study, we used an in vivo mutagenesis assay to define the mutagenic effects of accelerated 56Fe ions (1 GeV/amu, 151 keV/μm) in the...

We present new results of Cassini’s T9 flyby with complementary observations from T18. Based on Cassini plasma spectrometer (CAPS) and Cassini magnetometer (MAG), compositional evidence shows the upstream flow for both T9 and T18 appears composed of light ions (H and H2 ), with external pressures 30 times lower than that for the earlier TA flyby where heavy ions dominated the magnetospheric pla...

Mars is a dry planet with history of warm and wet environment. Hydrogen oxygen continuously escape from the unmagnetized planet. Although heavy ion rate in wake region low due to Mars' obstruction, there are reports events bursty enhanced escape. Here, we first find evidence Alfvenic dayside-produced plasma clouds accelerated by magnetic reconnection, which provides an explanation for mass obse...

The discovery of an atomic sodium exosphere at Mercury raises the question of whether Mercury, like I0 at Jupiter, can maintain a heavy ion magnetosphere. We suggest that it does, and that heavy ions (mainly Na ÷) from the exosphere are typically accelerated to keV energies and make important or dominant contributions to the mass (~300 g sec -1) and energy ( 3 x 109 W) budget s of the magnetosp...

in this article, groundwater samples in urban areas of kerman studied to assess the degree of pollution by heavy metals and major ions and other water quality parameters as a consequence of geology and anthropogenic sources. 43 samples were collected and analyzed by graphite furnace atomic absorption spectrometry, titration and potentiometery for some heavy metals (cd, cr, cu, mn, pb and zn), m...

There is an increasing interest in Radioactive Ion Beams throughout the world. These ions open new domains of research for nuclear physics, nuclear astrophysics and atomic physics. Two methods are used for the production of these beams: fragmentation of a primary, high energy heavy ion beam passing through a thin target or nuclei production in a thick target bombarded either by a heavy ion beam...

Heavy metal ions are harmful for entomopathogenic fungi. Derivatives of starch dialdehyde such as dihydrazone (DHZ), dithiosemicarbazone (DTSC), and dioxime (DOX) were used to form water-insoluble complexes with heavy metal ions. This phenomenon thus provided protection of entomopathogenic fungus Paecilomyces farinosus from the toxic effects of heavy metal ions. The fungus growth and the sporul...

The aim of this research is to characterize the optical properties of heavy metal ions (Hg, Cu, Pb and Zn) using surface plasmon resonance (SPR) technique. Glass cover slips, used as substrates were coated with a 50 nm gold film using sputter coater. The measurement was carried out at room temperature using Kretchmann SPR technique. When the air medium outside the gold film is changed to heavy ...

Within the framework of this thesis the ion acceleration from foils irradiated by high-intensity laser pulses was studied. The application of such laser accelerated ion beams could reach from compact fast-ion injectors for conventional particle accelerators over fast ignition for inertial confinement fusion to oncology and radiotherapy with ion beams. Proton imaging of laser produced plasmas is...

background & aims of the study: heavy metals discharge to environment is a worldwide problem growing in scale. when they accumulate in the environment and in food chains, they can profoundly disrupt biological processes. peganum harmala seeds (phs) was used as a bio-sorbent, using a continuous system for removing pb2+, co2+, ni2+ and cu2+ ions from aqueous solutions. materials and methods: phs ...