نتایج جستجو برای: cyclotron radiation
تعداد نتایج: 243782 فیلتر نتایج به سال:
Study of surface chemical changes and erosion rates for CV-1144-O silicone under electron cyclotron resonance oxygen plasma exposure" (2001). CV-1144-O silicone thin films were irradiated in an electron cyclotron resonance oxygen plasma, which is a simulation of the low earth orbital environment. A crude equivalence between this plasma system and the low earth orbital environment was determined...
In this study, we calculated coherent electron cyclotron emission (ECE) with helical wavefront from a multi-electron system which passes through magnetic mirror field motion. ECE is usually incoherent radiation due to the random rotation phase of each electron, and it difficult observe wavefront. However, when resonant external electromagnetic applied, gyro-phase electrons are controlled, expec...
Project 8: Measuring the tritium beta-decay spectrum using Cyclotron Radiation Emission Spectroscopy
Radiative emission from the magnetic moments of the spins of an electron beam has never been observed directly, because it is fundamentally much weaker than the electric charge emission. We show that the detectivity of spin-flip and combined spin-flip-cyclotron-resonance-emission radiation can be substantially enhanced by operating with ultrashort spin-polarized electron beam bunches under cond...
References .......................................................................... 27 Abstract The vast majority of PET radiopharmaceuticals today are cyclotron produced. Carbon-11 (C), Nitrogen-13 (N), Oxygen-15 (O) products are created for in-house use only due to their short half-lives. The longer half-life of Fluorine-18 means that F-labeled PET radiotracers can be widely distributed. Pr...
We report on magneto-oscillations in differential resistivity of a two-dimensional electron system subject to intense microwave radiation. The period of these oscillations is determined not only by microwave frequency but also by its intensity. A theoretical model based on quantum kinetics at high microwave power captures all important characteristics of this phenomenon which is strongly nonlin...
High-energy heavy ions cause severe local damage, injury, or inactivation to living organisms through highdensity local energy delivery. The JAERI AVF cyclotron and electrostatic accelerators in TIARA have been applied to biological studies covering cell surgery technique for plant breeding, high-LET specific mutation induced by ion beam, and the repair of DNA damage on radiation resistant bact...
1098-4402= The problems of spin-polarized free-electron beam interaction with electromagnetic wave at electronspin resonance conditions in a magnetic field and of superradiant spin-flip radiative emission are analyzed in the framework of a comprehensive classical model. The spontaneous emission of spin-flip radiation from electron beams is very weak. We show that the detectivity of electron spi...
Conventional physics cannot explain bioeffects caused by ELF fields [1]. A (double) resonance interaction of ELF radiation with the highly sub-thermal coherent motion of spiral waves in living matter (LM) is suggested. The (geo)magnetic cyclotron resonance (CR) absorption by the constituent ions can drastically change their non-thermal degrees of freedom in the spiral state, destroying their pa...
The Mobile Radiation Exposure Control System's (Liulin-4 type) main purpose is to monitor simultaneously the doses and fluxes at 4 independent places. It can also be used for personnel dosimetry. The system consists of 4 battery-operated 256-channel dosimeters-spectrometers. We describe results obtained during the calibrations of the spectrometers at the Cyclotron facilities of the University o...
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