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RIS citation export for MOP24: Compensation of Ultimate Space Charge with Electron Lenses

AU  - Stern, E.G.
AU  - Alexahin, Y.I.
AU  - Burov, A.V.
AU  - Shiltsev, V.D.
ED  - Gianfelice, Eliana
ED  - Nagaitsev, Sergei
ED  - Kim, Dong Eon
ED  - Marx, Michaela
ED  - Schaa, Volker R. W.
TI  - Compensation of Ultimate Space Charge  with Electron Lenses
J2  - Proc. of HB2021, Batavia, IL, USA, 04-08 October 2021
CY  - Batavia, IL, USA
T2  - ICFA ABDW on High-Intensity and High-Brightness Hadron Beams
T3  - 64
LA  - english
AB  - Space-charge effects set stringent limits on the performance of frontier high power proton accelerators. They manifest themselves in beam losses and emittance growth. Compensation of the space-charge effects in positively charged proton beams is possible by propagating the beam through negatively charged electron lenses which employ high brightness magnetized and externally controlled electron beams. While the method was previously assessed theoretically and in simplified tracking simulations, it has never been modeled by PIC codes to get reliable quantitative estimates of the efficiency of the compensation. Here we report on the first evidence using the Synergia particle-in-cell simulation code that a suitable number of electron lens type elements can protect the machine from emittance growth caused by space-charge forces in a model beam optics lattice with imperfections. For effective electron lens space-charge compensation, the compensating elements must be placed within not too large betatron phase advance from each other. Electron lens elements could become the basis of new generation of high power proton and ion rapid cycling synchrotrons.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
ER  -