Advances in Imaging and Electron Physics, Volume 193 by Peter W. Hawkes

By Peter W. Hawkes

The 2 chapters that fill this quantity describe instruments for learning the brightness of electron beams and for analysing the homes of mass spectrometers.

First, L.D. Duffy and A.J. Dragt introduce the idea that of eigen-emittance. 3 kinematic invariants are linked to charged-particle beams, in linear shipping mode. those invariants are often called eigen-emittances and a learn in their homes makes it attainable to tailor the beam to slot the appliance in query. the speculation relies at the thought of sym-plectic beam shipping, an issue on which A.J. Dragt has already contributed to those Advances (Advances in Electronics & Electron Physics, sixty seven, 1986, 65—120, with E. Forest). The authors first recapitulate the elemental concept earlier than explaining how the emittance should be tailored as required. the rest of the bankruptcy, which shape a quick treatise at the topic, provides quite a few applications.

In the second one bankruptcy, I. Spivak-Lavrov describes at size methods of analysing the homes of either static and time-of-flight mass spectrometers and of devising new designs. The optics of those tools is determined out intimately, in an try to make the thing self-contained. a lot Russian paintings is brought up, usually from journals that aren't on hand in English translation and on occasion, will not be broadly to be had outdoor their nations of beginning.

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Extra info for Advances in Imaging and Electron Physics, Volume 193

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All the motion and trajectory equations obtained in section 2 can be used most effectively when there are analytical expressions for the potentials describing COS electric and magnetic fields. In section 3, COS, whose electric and magnetic fields are found analytically via considering methods of the theory of functions of a complex variable (TFCV), and trajectories of charged particles in them are calculated numerically by integrating motion and trajectory equations. Here, we will especially note the method of calculation of potentials of a transaxial COS and a system with axial symmetry that we developed in harmonic approximation.

3 Newton's Equations in Dimensionless Variables 3. 3 Influence of the Fringe Field on the Motion of the Charged Particles in Flat and Cylindrical Capacitors 4. 3 TOF Mass Analyzers on the Basis of a Wedge-Shaped Mirror with a 2D Field 5. 001 # 2016 Elsevier Inc. All rights reserved. 46 50 50 58 67 68 70 75 87 97 97 106 114 124 125 125 45 46 Igor Spivak-Lavrov 1. INTRODUCTION Charged particle optics, or corpuscular optics (CO), was derived from the analogy between the distribution of light in transparent environments and the movement of charged particles in electric and magnetic fields.

These correlations can be removed from the beam, via optics consisting of three skew-quadrupoles. After passing through the optics to remove the correlations, the beam is no longer rotating and is flat, in that one of the transverse dimensions of the beam is much smaller than the other. As no correlations are present in the final beam, the emittance values coincide with the eigen-emittances. Burov et al. (2002) considered transforming a flat beam to a round one as an alternative to providing continuous solenoid focusing for a relativistic electron beam used in electron cooling.

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