scholarly journals Comparison of axial and radial electron-beam-breakup transit-time oscillators

1995 ◽  
Author(s):  
Thomas J. T. Kwan ◽  
Michael A. Mostrom
Keyword(s):  
Electron Beam ◽  
Transit Time

Transit-time magnetic pumping of an electron beam in the Proto-Cleo stellarator

1976 ◽  
Vol 19 (12) ◽  
pp. 2029 ◽  
Author(s):  
S. N. Golovato ◽  
J. L. Shohet
Keyword(s):  
Electron Beam ◽  
Transit Time

Electron-beam-breakup transit-time oscillator

1991 ◽  
Vol 66 (24) ◽  
pp. 3221-3224 ◽  
Author(s):  
Thomas J. T. Kwan ◽  
Michael A. Mostrom ◽  
Brendan B. Godfrey
Keyword(s):  
Electron Beam ◽  
Transit Time

Eliminating the transit-time instability in large-area electron-beam diodes

2003 ◽  
Vol 83 (8) ◽  
pp. 1539-1541 ◽  
Author(s):  
M. Friedman ◽  
Y. Chan ◽  
S. Obenschain ◽  
J. D. Sethian ◽  
S. B. Swanekamp
Keyword(s):  
Electron Beam ◽  
Transit Time ◽  
Large Area

scholarly journals Radial Electron-Beam-Breakup Transit-Time Oscillator

1995 ◽  
Vol 75 (7) ◽  
pp. 1411-1414 ◽  
Author(s):  
Michael A. Mostrom ◽  
Thomas J. T. Kwan
Keyword(s):  
Electron Beam ◽  
Transit Time

scholarly journals Radial electron-beam-breakup transit-time oscillator

1995 ◽  
Author(s):  
M.A. Mostrom ◽  
T.J.T. Kwan
Keyword(s):  
Electron Beam ◽  
Transit Time

scholarly journals Position, Energy, and Transit Time Distributions in a Hemispherical Deflector Analyzer with Position Sensitive Detector

2015 ◽  
Vol 2015 ◽  
pp. 1-20 ◽  
Author(s):  
Omer Sise ◽  
Theo J. M. Zouros
Keyword(s):  
Electron Beam ◽  
Transit Time ◽  
Relative Energy ◽  
Position Sensitive Detector ◽  
Sensitive Detector ◽  
Wide Range ◽  
Fringing Field ◽  
Position Sensitive ◽  
Time Spread ◽  
The Ideal

Practical analytic equations, for the ideal field, and numerical results from SIMION simulations, for the fringing field, are presented for the exit radiusrπand transit timetπof electrons in a hemispherical deflector analyzer (HDA) over a wide range of analyzer parameters. Results are presented for a typically dimensioned HDA with mean radiusR-=101.6 mm and interradial separationΔR=R2-R1=58.4 mm able to accommodate a 40 mm diameter position sensitive detector (PSD). Results for three different entry positionsR0are compared:R0=R-(the conventional central entry) and two displaced (paracentric) entries:R0=82.55 mm andR0=116 mm. Exit spreadsΔrπ,Δtπand base energy resolutionΔEBare computed for HDA pass energiesE0=10, 100, 500, and 1000 eV, entry aperture sizesΔr0≤1.5 mm, entry angular spreads|αmax|≤5°, and an electron beam with relative energy spreadδE/E0≤0.4%. Overall, under realistic conditions,bothparacentric entries demonstratenear idealfield behavior and clear superiority over the conventional entry atR0=R-. TheR0=82.55 mm entry has betterabsoluteenergy and time spread resolutions, while theR0=116 mm has betterrelativeenergy resolutions, both offering attractive alternatives for time-of-flight and coincidence applications where both energy and timing resolutions are important.

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