Negative-mass mitigation of Coulomb repulsion for terahertz undulator radiation of electron bunches

N. Balal, I. V. Bandurkin, V. L. Bratman, E. Magory, A. V. Savilov

פרסום מחקרי: פרסום בכתב עתמאמרביקורת עמיתים

51 ציטוטים ‏(Scopus)

תקציר

It is proposed to utilize the effect of negative mass for stabilization of the effective axial size of very dense and short electron bunches produced by photo-injector guns by using combined undulator and strong uniform magnetic fields. It has been shown that in the "abnormal" regime, an increase in the electron energy leads to a decrease in the axial velocity of the electron; due to the negative-mass effect, the Coulomb repulsion of electrons leads to their attraction and formation of a fairly stable and compact bunch "nucleus." An undulator with a strong uniform magnetic field providing the negative-mass effect is designed for an experimental source of terahertz radiation. The use of the negative-mass regime in this experiment should result in a long-pulse coherent spontaneous undulator emission from a short dense moderately relativistic (5.5 MeV) photo-injector electron bunch with a high (up to 20%) efficiency and a narrow frequency spectrum.

שפה מקוריתאנגלית
מספר המאמר163505
כתב עתApplied Physics Letters
כרך107
מספר גיליון16
מזהי עצם דיגיטלי (DOIs)
סטטוס פרסוםפורסם - 19 אוק׳ 2015

טביעת אצבע

להלן מוצגים תחומי המחקר של הפרסום 'Negative-mass mitigation of Coulomb repulsion for terahertz undulator radiation of electron bunches'. יחד הם יוצרים טביעת אצבע ייחודית.

פורמט ציטוט ביבליוגרפי