A 15 UD Pelletron electrostatic accelerator is in regular operation at Inter-University Accelerator Center (IUAC). It has been providing various ion beams in the energy range from a few tens of MeV to 270MeV for scheduled experiments. A superconducting linac booster module having eight niobium quarter wave resonators has been made operational for boosting the energy of the heavy ion beams from ...

A key parameter of the polar-cap accelerator is a = j/cρGJ, where j is the electric current and ρGJ is the corotation charge density. The customary model assumed a = 1 ± ǫ and found ǫ ≪ 1, steady acceleration of particles, and e creation. The fine-tuning of a to 1 is not, however, favored by the magnetosphere, and the accelerator with |a − 1| > ǫ ∼ 10 is qualitatively different. For 0 < a < 1 −...

An accelerator-based BNCT facility is under development at the Lawrence Berkeley National Laboratory. Neutrons will be produced via the 7Li(p,n) reaction at proton energies of about 2.5 MeV with subsequent moderation and filtering for shaping epithermal neutron beams for BNCT. Moderator, filter, and shielding assemblies have been modeled using MCNP. Head-phantom dose distributions have been cal...

Various classes of non-quiescent magnetized plasma exhibit anomalous energy and/or momentum diffusivity. In this case, ‘anomalous’ is meant to characterize a transport regime wherein the measured property flux disagrees with classical theory. In most examples anomalous transport is substantially higher than classical expressions predict; it is no different for the Hall accelerator. It has been ...

Pulsed energization of electrostatic precipitator (ESP) may represent one of the most promising solutions to comply with strict environmental regulation in case of high resistivity dust. Performs a parametric cost comparison between conventional and pulsed ESP with reference to four main industrial areas: electric power generation, cement manufacturing, iron and steel production, glass industry...

With the increasing use of particle accelerators in various fields, construction has developed. In these accelerators, measurement instruments that measure important and versatile quantities are very important. Due to role electric potential acceleration, accurate at any time is essential. this research, design, fabrication testing a non-destructive measuring device called Generating Voltmeter ...

The longitudinal dynamics of a resonantly driven Langmuir wave are analyzed in the limit that the growth of the electrostatic wave is slow compared to the bounce frequency. Using simple physical arguments, the nonlinear distribution function is shown to be nearly invariant in the canonical particle action, provided both a spatially uniform term and higher-order spatial harmonics are included al...

SIS18 will serve as booster synchrotron for the proposed International Accelerator Facility FAIR [1] at GSI. The aim is to provide high intensity proton and low charge state heavy ion beams of e.g. U 28+ -ions with a repetition rate of 2.7 – 4 cycles per second. The operation with low charge state heavy ion beams requires modifications of the injection system. At present, the maximum field stre...

Supporting the knowledge of artworks, past times and civilizations by physics and, in general, sciences have been now recognised to be a very valuable possibility, even though scientific measurements cannot definetely replace historical archaeological studies. In this framework, small particle accelerators, i.e., low voltage electrostatic systems, can play an important role for both material an...

Electrostatic precipitators (ESP) and fabric filters (FF) are the main air pollution control equipment utilized to clean dust laden fumes from utility boilers. The choice among these systems depends on specific site conditions such as dust characteristics, required efficiency, gas flowrate and temperature. ESP are generally characterized by higher capital investments and lower operating charges...