Suppressing Electron Cloud in Future Linear Colliders

In this paper, we will give a brief review of some important beam physics in circular and linear electron–positron collider designs, covering beam–beam tune limits, longitudinal and transverse single bunch collective effects, electron cloud and space charge effects, dynamic aperture estimations, etc. The main feature of this review is that the corresponding beam physics treatments are coming from author's previous research works which are scattered in different scientific publications both for circular and linear colliders. With the progresses of future linear colliders, such as ILC, and future circular electron–positron colliders, such as CEPC, it is high time to review the key beam physics issues in the optimization designs of these two kinds of machines.

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To What Extent are Inelastically Scattered Electrons Useful in the Stem?

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100071879 ◽

1973 ◽

Vol 31 ◽

pp. 286-287 ◽

Cited By ~ 2

Author(s):

H. Rose

Keyword(s):

Electron Microscope ◽

High Resolution ◽

Electron Correlation ◽

Quantum Noise ◽

Collection Efficiency ◽

Scanning Transmission Electron Microscope ◽

Electron Cloud ◽

Scanning Time ◽

Transmission Electron ◽

Scanning Transmission

The scanning transmission electron microscope offers the possibility of utilizing inelastically scattered electrons. Use of these electrons in addition to the elastically scattered electrons should reduce the scanning time (dose) Which is necessary to keep the quantum noise below a certain level. Hence it should lower the radiation damage. For high resolution, Where the collection efficiency of elastically scattered electrons is small, the use of Inelastically scattered electrons should become more and more favorable because they can all be detected by means of a spectrometer. Unfortunately, the Inelastic scattering Is a non-localized interaction due to the electron-electron correlation, occurring predominantly at the circumference of the atomic electron cloud.

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Effect of temperature during the synthesis process of CdSe nanoparticles using the colloidal technique

MRS Advances ◽

10.1557/adv.2020.441 ◽

2020 ◽

Vol 5 (63) ◽

pp. 3389-3395

Author(s):

R. González-Díaz ◽

D. Fernández-Sánchez ◽

P. Rosendo-Francisco ◽

G. Sánchez-Legorreta

Keyword(s):

Scanning Tunneling Microscope ◽

Electron Cloud ◽

Cdse Nanoparticles ◽

Effect Of Temperature ◽

Synthesis Process ◽

Scanning Tunneling ◽

Tunneling Microscope ◽

First Results ◽

Effects Of Temperature ◽

Scanning Electron

AbstractIn this work, the first results of the effects of temperature during the production of Se2- ions and the effect during the interaction of Cd2+ and Se2- ions in the synthesis process of CdSe nanoparticles are presented. The synthesis of CdSe was carried out by the colloidal technique, in the first one we used a temperature of 63 °C to produce Se2- ions and in the second one an interaction temperature of 49 °C. The samples were characterized using a Scanning Electron Microscope (SEM) and a Scanning Tunneling Microscope (STM). From the SEM micrographs it was possible to identify the thorns formation and irregular islands. STM micrographs reveal elliptical shapes with a regular electron cloud profile.

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Progress in preparation and characterization of silylene iron, cobalt and nickel complexes

Dalton Transactions ◽

10.1039/d1dt00523e ◽

2021 ◽

Author(s):

Wenjing Yang ◽

Yanhong Dong ◽

Hongjian Sun ◽

Xiaoyan Li

Keyword(s):

Nickel Complexes ◽

Electron Cloud ◽

Synthesis And Characterization ◽

Iron Cobalt ◽

Cloud Density ◽

Cobalt And Nickel

The synthesis and characterization of Fe, Co and Ni complexes supported by silylene ligands in recent ten years are summarized. Due to the decrease of electron cloud density on Si...

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