نتایج جستجو برای: cyclotron frequency

تعداد نتایج: 489327  

Journal: :Physical review letters 2015
D M Asner R F Bradley L de Viveiros P J Doe J L Fernandes M Fertl E C Finn J A Formaggio D Furse A M Jones J N Kofron B H LaRoque M Leber E L McBride M L Miller P Mohanmurthy B Monreal N S Oblath R G H Robertson L J Rosenberg G Rybka D Rysewyk M G Sternberg J R Tedeschi T Thümmler B A VanDevender N L Woods

It has been understood since 1897 that accelerating charges must emit electromagnetic radiation. Although first derived in 1904, cyclotron radiation from a single electron orbiting in a magnetic field has never been observed directly. We demonstrate single-electron detection in a novel radio-frequency spectrometer. The relativistic shift in the cyclotron frequency permits a precise electron ene...

2006
T. Saito

We consider a system that both ends of a charged open string are attached on the Dpbrane with constant electromagnetic fields. Contrary to neutral strings, the quantization of charged strings has not been so far considered well. For this system we construct the spectrum-generating algebra (SGA), which involves the cyclotron frequency. When the cyclotron frequency is set to be zero, the SGA is r...

2012
M. Ichimura R. Ikezoe M. Hirata T. Iwai T. Yokoyama Y. Ugajin T. Sato T. Iimura Y. Saito M. Yoshikawa J. Kohagura Y. Shima T. Imai

Plasmas with high ion-temperature of several keV and strong temperature anisotropy of more than 10 have been produced by using ion-cyclotron range of frequency (ICRF) heating in the GAMMA 10 tandem mirror. In such high performance plasmas with strong anisotropy, high-frequency fluctuations, so-called Alfvén-Ion-Cyclotron (AIC) waves, are spontaneously excited. The AIC waves have several discret...

2007
D. L. Carpenter T. F. Bell D. Chen D. Ng C. Baran B. W. Reinisch I. Galkin

[1] At various altitudes in the plasmasphere, sounder pulses from the Radio Plasma Imager (RPI) instrument on the IMAGE satellite can couple strongly to protons, a process revealed in echo time delay versus frequency forms that arrive at multiples of the local proton cyclotron period tp. Lower-altitude (<4000 km) versions of two of these proton cyclotron (PC) forms were previously observed in t...

1998
Bao-Hua Wei Chang Sub Kim

Taking into account the interaction of an electron with interface optical phonons as well as bulk longitudinal optical phonons, we study the cyclotron resonance of magnetopolarons at the interfaces of polar crystals. We consider both the absorption and emission processes in our calculation using the Green’s function method at finite temperatures. Consequently, different temperature characterist...

2017
S. Danani M. E. Austin M. W. Brookman H. K. B. Pandya Vinay Kumar

The Electron Cyclotron Emission (ECE) diagnostic system in ITER provides essential information for plasma control and for evaluating the plasma performance. It measures the electron temperature profile (edge/core), electron temperature fluctuations and radiated power in the electron cyclotron frequency range from the plasma. Virginia Diodes Inc. (VDI) has designed and developed a stateof-the-ar...

Journal: :International Journal of Infrared and Millimeter Waves 1992

Journal: :Journal of the American Society for Mass Spectrometry 1993

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