One of the primary ways to discover new information about nuclei is to detect the remnants of collisions between two different nuclei moving at high (relativistic) speeds. The HiRA (high resolution array) is capable of resolving the energies of these collision remnants to an accuracy of about 35 keV. To accurately determine the energies of these particles an accurate calibration is required. Ob...

This paper represents a short overview of nanocomposites consisting of magnetic nanoparticles incorporated into the pores of a porous silicon matrix by two different methods. On the one hand, nickel is electrochemically deposited whereas the nanoparticles are precipitated on the pore walls. The size of these particles is between 2 and 6 nm. These particles cover the pore walls and form a tube-l...

Applications such as environment monitoring implying alpha emitters activity measurement associated with isotope identification, require high-energy resolution detectors. Conventional silicon detectors are inexpensive therefore widely used, although intrinsically limited in energy resolution. Thermal detection principle of cryogenic detectors introduces a breakthrough in alpha particle measurem...

The possibility of obtaining sialon in the SHS-Az mode (self-propagating high-temperature synthesis using sodium azide) from systems "silicon dioxide – azide aluminum halogenide silicon" is viewed. phase composition and combustion products are analyzed average particle size determined. It was found that particles a product were combined into agglomerates. plate-like 300...350 nm, equiaxed 120.....

A central tracker based on silicon microstrip sensors has been envisaged for the e + e − linear collider experiments. A full simulation program based on GEANT4 has been developed to study performance of the tracker. We report some preliminary results obtained using this program. The use of silicon microstrip detectors as precise tracking devices in colliding-beam experiments has been well estab...

In this work, we will show that ferromagnetic microjets can pick-up paramagnetic beads while not showing any interaction with diamagnetic silica microparticles for the active separation of microparticles in solution.

The history of silicon nitride (Si3N4) has been described previously; detailed analyses of particles of meteroritic rock have been shown to contain silicon nitride crystals, suggesting that this material exists naturally in the galaxy.1 Synthetic Si3N4 was probably developed by Deville and Wöhler in 1859. Commercial interest in this material increased in the 1950s, as the material properties of...

Acoustophoresis in microfluidic structures has primarily been reported in silicon microfabricated devices. This paper demonstrates, for the first time, acoustophoresis performed in isotropically etched glass chips providing a performance that matches that of the corresponding silicon microdevices. The resonance mode characteristics of the glass chip were equal to those of the silicon chip at it...

We demonstrate wavelength-tunable, air-stable and nontoxic phosphor materials based on silicon quantum dots (SiQDs). The phosphors, which are composed of micrometer-size silicon particles with attached SiQDs, are synthesized by an electrochemical etching method under ambient conditions. The photoluminescence (PL) peak wavelength can be controlled by the SiQD size due to quantum confinement effe...

It is known that silicon is an indirect band gap material, reducing its efficiency in photovoltaic applications. Using surface plasmons in metallic nanoparticles embedded in a solar cell has recently been proposed as a way to increase the efficiency of thin-film silicon solar cells. The dipole mode that dominates the plasmons in small particles produces an electric field having Fourier componen...