All of the solar system gas giants produce electron cyclotron masers, driven by the solar wind impinging on their magnetospheres. Extrapolating to the planet orbiting τ Boo, various authors have predicted that it may be within the detection limits of the 4-meter wavelength (74 MHz) system on the Very Large Array. This paper reports three epochs of observations of τ Boo. In no epoch do we detect...

An attempt is made to con®rm the generation mechanism of plasmaspheric ELF hiss emissions observed aboard GEOS-1 satellite in the equatorial region both at small and large wave normal angles by calculating their magnetic ®eld intensities in terms of incoherent Cerenkov radiation mechanism and cyclotron resonance instability mechanism, using appropriate and suitable plasma parameters. The ELF in...

Resonant cyclotron scattering of the surface radiation in the magnetospheres of neutron stars may considerably modify the emergent spectra and impede efforts to constraint neutron star properties. Resonant cyclotron scattering by a non-relativistic warm plasma in an inhomogeneous magnetic field has a number of unusual characteristics: (i) in the limit of high resonant optical depth, the cyclotr...

The cyclotron-resonance-maser ~CRM! array is a device in which separate electron beams perform simultaneously a cyclotron interaction with a single Bloch wave in an artificial lattice. The CRM array has the capability of generating high-power microwaves with relatively low-voltage electron beams. The low-voltage operation reduces the system overhead and leads to a relatively compact device. In ...

A chorus generation mechanism is discussed, which is based on interrelation of ELF/VLF noise-like and discrete emissions under the cyclotron wave-particle interactions. A natural ELF/VLF noise radiation is excited by the cyclotron instability mechanism in ducts with enhanced cold plasma density or at the plasmapause. This process is accompanied by a step-like deformation of the energetic electr...

Efficient (~1%) electron cyclotron radio emissions are known to originate in the X mode from regions of locally depleted plasma in the Earths polar magnetosphere. These emissions are commonly referred to as the Auroral Kilometric Radiation (AKR). AKR occurs naturally in these polar regions where electrons are accelerated by electric fields into the increasing planetary magnetic dipole. Here con...

Cyclotrons are particle accelerator machines which have many applications in industry, technology and medicine. Cyclotrons play an important role in medicine and about 50% of the all particle accelerators running in the world are used in medicine for radiation therapy, medical radioisotopes production, and biomedical research. In this short review the use of cyclotrons for a radiation therapy m...

Optical photometry, spectroscopy and XMM-Newton ultraviolet and X-ray observations with full phase coverage are used for an in-depth study of WX LMi, a system formerly termed as a low-accretion rate polar. We find a constant low mass accretion rate, Ṁ ∼ 1.5 × 10M⊙ yr, a peculiar accretion geometry with one spot not being accessible via Roche-lobe overflow, a low temperature of the white dwarf, ...

We demonstrate significant improvement of the radiation immunity integrated circuits based on silicon bipolar transistors. Strong decrease current gain degradation and yield after high-energy gamma irradiation are both shown. This was achieved by development efficient hydrogenation process for bulk surface dielectric layer using electron cyclotron resonance (ECR) plasma, as well implementation ...

Cyclotron resonance (CR) is considered one of the fundamental phenomena in conducting systems. In this paper, we study CR a gated two-dimensional (2D) electron system (ES). Namely, analyze absorption electromagnetic radiation incident normal to 2DES, where standard dielectric substrate separates 2D sheet and metallic steering electrode ("gate"); whole placed perpendicular magnetic field. Our an...