Zobrazeno 1 - 10
of 14
pro vyhledávání: '"I S Falconer"'
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 28:765-772
The relative magnitudes of laser-induced fluorescence at Halpha , and Hbeta when a hydrogen plasma is pumped at the Halpha transition have been measured as a function of electron density in a small tokamak plasma. The measurements differ, by a small
Publikováno v:
Nuclear Fusion. 21:1028-1031
A sub-miliimeter-wave heterodyne receiver designed for a D2O laser Thomson scattering ion temperature diagnostic has been used to measure the synchrotron emission from the Alcator A tokamak at 762 ? 11 GHz down to levels of 10?20 W?Hz?1. A comparison
Publikováno v:
Journal of Physics E: Scientific Instruments. 19:960-963
A simple far-infrared interferometer which uses the 394 mu m laser line from optically-pumped formic acid vapour to measure tokamak electron density is described. This interferometer is unusual in requiring only one detector and a single probing beam
Publikováno v:
Journal of Physics E: Scientific Instruments. 12:39-42
A vibration-insensitive 633 nm He-Ne laser interferometer for the measurement of plasma electron densities is described. This instrument is a Michelson interferometer with the reference arm located parallel to the test arm so that spurious fringes re
Publikováno v:
Journal of Physics E: Scientific Instruments. 20:1249-1255
A far-infrared interferometer, illuminated with an optically pumped formic acid vapour laser, which uses a rotating mirror assembly spinning at high speed to scan the probing beam radially across a tokamak plasma, is described. This interferometer ha
Publikováno v:
Journal of Applied Physics. 52:7099-7106
Electron cyclotron emission (ECE) from thermal plasmas in the Alcator A tokamak for harmonics from 2nd through 5th and up to the 7th harmonic for nonthermal plasmas have been observed in the frequency range of 400–800 GHz using a sensitive, low‐n
Publikováno v:
Journal of Physics E: Scientific Instruments. 5:910-914
The electron density distribution in an axisymmetric plasma may be determined by measuring the deviation of a gas laser beam on passing through the plasma. If the beam is inclined at a small angle to the axis of the plasma the bending is closely prop
Publikováno v:
Journal of Physics E: Scientific Instruments. 8:216-218
Calculations of the change of the reflectance of the beam splitter of a laser beam monitor resulting from small changes in direction of incidence, polarization, and divergence of the incident beam, are summarized. It is concluded that for angles of i
Publikováno v:
Applied Physics Letters. 39:548-550
A sensitive submillimeter heterodyne receiver has been used to measure electron cyclotron emission at the 2nd through the 5th harmonics from thermal plasmas in Alcator A. A sensitive diagnostic of the electron energy distribution function is obtained
Autor:
E. Peklo, I. S. Falconer
Publikováno v:
Review of Scientific Instruments. 42:151-151