Driver-witness electron beam acceleration in dielectric mm-scale capillaries

Driver-witness electron beam acceleration in dielectric mm-scale capillaries

Бібліографічні деталі
Parent link:Physical Review Accelerators and Beams
Vol. 21, iss. 5.— 2018.— [051301, 8 p.]
Співавтор: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Кафедра прикладной физики (№ 12) (ПФ) Международная научно-образовательная лаборатория "Рентгеновская оптика" (МНОЛ РО)
Інші автори: Lekomtsev K. V. Konstantin, Aryshev A. S. Aleksandr Sergeevich, Tishchenko A. A. Aleksey Aleksandrovich, Shevelev M. V. Mihail Viktorovich, Lyapin A. Alexey, Boogert S. T. Stewart Takashi, Karataev P. V. Pavel Vladimirovich, Terunuma N. Nobihiro, Urakawa J. Junji
Резюме:Title screen
We investigated a corrugated mm-scale capillary as a compact accelerating structure in the driver-witness acceleration scheme, and suggested a methodology to measure the acceleration of the witness bunch. The accelerating fields produced by the driver bunch and the energy spread of the witness bunch in a corrugated capillary and in a capillary with a constant inner radius were measured and simulated for both on-axis and off-axis beam propagation. Our simulations predicted a change in the accelerating field structure for the corrugated capillary. Also, an approximately twofold increase of the witness bunch energy gain on the first accelerating cycle was expected for both capillaries for the off-axis beam propagation. These results were confirmed in the experiment, and the maximum measured acceleration of 170  keV/m at 20 pC driver beam charge was achieved for off-axis beam propagation. The driver bunch showed an increase in energy spread of up to 11%, depending on the capillary geometry and beam propagation, with a suppression of the longitudinal energy spread in the witness bunch of up to 15%.
Мова:Англійська
Опубліковано: 2018
Предмети:
электронный ресурс
труды учёных ТПУ
ускоряющие поля
капилляры
энергия
Онлайн доступ:https://doi.org/10.1103/PhysRevAccelBeams.21.051301
Формат: Електронний ресурс Частина з книги
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659079

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