A cold test facility has been in operation since October 1998 at the IBR-2 reactor of JINR, Dubna. During four measurement campaigns, various samples of the ATLAS forward (FCAL) and hadronic end cap (HEC) calorimeter materials have been exposed to a fast neutron (En 100 keV) uence of about 10 16 n cm . The samples were immersed in a liquid argon cryostat, and an -cell has been used as purity mo...

The effects of plasma treatment polyimide substrates on the texture and grain size distribution aluminum thin films were studied. Oxygen-argon increased average enhanced (111) film texture. For short oxygen-argon times, deposited Al showed a with bimodal structure even {111}<112¯> type in-plane preferential nucleation growth grains are discussed in terms interface energy anisotropy.

This work presents a magnetron with sputtering unit (sandwich target). The novel-$$$ty of the is due to three parallel plates different metals included in unit. They are mounted on same axis and rigidly attached it. located reactive environment consisting plasma-forming argon gas (nitrogen, oxy-$$$gen, etc.). lower plate cold, while middle outer ones operate hot target mode. In erosion zone pla...

Line broadening of the hydrogen Balmer lines provides a sensitive measure of the number and energy of excited hydrogen atoms in a glow discharge plasma. The width of the 656.5 nm Balmer α line emitted from gas discharge plasmas having atomized hydrogen from pure hydrogen alone, hydrogen with magnesium or strontium, a mixture of 10% hydrogen and helium, argon, krypton, or xenon, and a mixture of...

Surface modification of polyimide films by oxygen/argon atmospheric pressure plasma (APP) was studied for copper metallization under several conditions, including plasma treatment time, gas ratio, and power of radio frequency (RF; 13.56MHz) plasma. The effects of APP treatments on the surface properties of polyimide (PI) films were investigated in terms of Fourier-transform infrared (FT-IR) spe...

The effect of ambient gas on the dynamics of the plasma generated by laser ablation of a carbon target using 1.06 mm radiation from a Q-switched Nd:YAG laser has been investigated using a spectroscopic technique. The emission characteristics of the carbon plasma produced in argon, helium and air atmospheres are found to depend strongly on the nature and pressure of the surrounding gas. It has b...

Most of spices are produced using traditional systems. In unsanitary conditions, spices can contain large numbers of pathogenic microbes such as bacteria, molds and yeasts. Some microorganisms are known as human pathogens, which need disinfection mechanisms that minimize their potential harms to active substances in spices. Use of contaminated spices in foods can significantly decrease the shel...

Microplasma sources can be integrated into portable devices for applications such as bio-microelectromechanical system sterilization, small-scale materials processing, and microchemical analysis systems. Portable operation, however, limits the amount of power and vacuum levels that can be employed in the plasma source. This paper describes the design and initial characterization of a low-power ...

Very smooth thin films of iridium have been deposited on super polished fused silica (SiO2) substrates using dc magnetron sputtering in argon plasma. The influence of deposition process parameters on film micro roughness has been investigated. In addition, film optical constants have been determined using variable angle spectroscopic ellipsometery, over the spectra range from vacuum ultraviolet...

The changes at molecular level induced by cold argon plasma treatments on fibers obtained from chemi-thermo-mechanical pulp (CTMP) fibers were investigated. The radicals formed on CTMP fibers after treatments were identified and quantified by Electron Paramagnetic Resonance (EPR) spectroscopy. The plasma conditions which maximize the formation of radicals on fibers were assessed: after treatmen...