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Showing 1 to 20 of 73 for “"electron beams"”.
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Analysis of Bunched Electron Beams
Made available in DSpace on 2014-12-04T21:02:45Z (GMT). No. of bitstreams: 1 0013462.pdf: 4814432 bytes, checksum: f2f64885453610d5818900dbdba53349 (MD5) Previous issue date: 1955
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Debunching in High Density Electron Beams
Made available in DSpace on 2014-12-04T21:02:45Z (GMT). No. of bitstreams: 1 0011549.pdf: 4459138 bytes, checksum: 3c76a8b9e1cd14a198fd645538c95d99 (MD5) Previous issue date: 1955
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Cold Intense Electron Beams from Gallium Arsenide Photocathodes
Für die Anwendung von Gallium Arsenid mit negativer Elektronenaffinität als Quelle kalter intensiver Elektronenstrahlen wurde die Elektronentransmission des Halbleiter-Vakuum Übergangs mittels der Messung von Energieverteilungen der photoemittierten Elektronen untersucht. Es konnte durch eine …
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Radiation from relativistic electron beams in periodic structures
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
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Interaction of Modulated Electron Beams With Open Periodic Structures
Made available in DSpace on 2014-12-08T22:24:07Z (GMT). No. of bitstreams: 1 6706688.pdf: 4476343 bytes, checksum: 2b46b3138ee16f0118b653cb9da9ab46 (MD5) Previous issue date: 1966
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Production of cold electron beams for collision experiments with stored ions
A new electron target section (ETS) as a dedicated electron target for the storage ring TSR has been mounted and tested. With the help of this device electron collision experiments on a stored ion beam can be performed independently of the phase space cooling (electron cooling) of this beam. …
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Generation of coherent high-power microwave radiation with relativisitic electron beams
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1994.
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On the Excitation of Dielectric Resonators by Means of Pulsed Electron Beams
Made available in DSpace on 2014-12-04T21:02:36Z (GMT). No. of bitstreams: 1 0007859.pdf: 5541101 bytes, checksum: 7e272bfbf7321452385321fcd18c1881 (MD5) Previous issue date: 1951
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High-brightness electron beams from a DC, high-voltage, GaAs photoemission gun
… spread of the highly-charged, short-duration electron bunches it generates. We report these measurements as functions of microbunch charge for different beam radii, pulse lengths, and voltages/field gradients at the cathode, and compare them with the theoretical predictions of the computer …
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Quadrupole Strong Focusing for Space-Charge Dominated Electron Beams in Traveling-Wave Tubes
… of the applicability of PMQ focusing in vacuum electronic devices.'
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Investigation of the interaction of high current relativistic electron beams with electromagnetic fields
… the investigation of high current relativistic electron beams produced by explosive electron eMission from the flare cathode plasma of a high voltage, cold-cathode, field-emission diode are reported. In addition, the production of high power ( ~100kW) microwave radiation through the interaction …
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Differential energy analysis of electron beams : a study of photoemission from NEA-GaAs
Die mittlere transversale Energie von Photoelektronen aus gekühltem (90K) GaAs mit negativer Elektronenaffinität wurde mittels adiabatischer transversaler Strahlkompression in einem longitudinalen magnetischen Führungsfeld systematisch untersucht. Darüberhinaus wurde eine neue differentielle …
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Development of a Hybrid Alanine-calorimetry Absorbed-dose Standard for Linac Electron Beams
… dose to water in cobalt-60, linac photon beams and high-energy linac electron beams. However, for lower-energy electron beams, given the short range of electrons and the physical dimensions of the calorimeter, it is impossible to perform measurements at the reference depths in water. …
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An Experimental and Theoretical Investigation of Electron Beams Generated by a Dense Plasma Focus
(DIAGRAM, TABLE OR GRAPHIC OMITTED...PLEASE SEE DAI)
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generation and transport of high-current relativistic electron beams in high intensity laser-solid interactions
… ultra-high intensity laser-driven relativistic electron beams in overdense plasma is investigated experimentally and numerically. The fast electron beam is experimentally diagnosed by means of a 2D Cu Kα imager and the TNSA-generated proton beam. Analytical models together with a 3D hybrid-PIC …
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Validation of Monte Carlo-based calculations for small irregularly shaped intra-operative radiotherapy electron beams
The objective was to implement a Monte Carlo-based Intra-operative radiation therapy programme at the institution of the author.
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Rapid Solidification of Alloy Substrates by Lasers and Electron Beams: Heat Flow Modelling and Solidification Morphology
A combined theoretical and experimental study is described for the rapid melting and solidification of pure aluminum and aluminum copper alloy substrates subjected to a high intensity heat flux. The problems addressed are for stationary or moving heat fluxes absorbed through a circular region on …
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Modeling of a compact terahertz source based on the two-stream instability.
… environmental monitoring. Conventional vacuum electronic sources of THz radiation (e.g., fast- and slow-wave devices) either require very small structures or are bulky and expensive to operate. Optical sources necessitate cryogenic cooling and are presently capable of producing milliwatt levels …
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Coherence Effects and Spin Polarisation of Electrons in Electromagnetic Fields
The collision of relativistic electrons with a counter propagating laser pulse can potentially generate short pulses of harmonics in the X-ray range, capable of tracking molecular, atomic and sub-atomic dynamics. Also, the creation of relativistic spin polarised electron beams is essential for …
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