Acceleration of electrons in THz driven structures for AXSIS

• DOI: 10.1016/j.nima.2018.01.074
• Publication Date: 2018-02-03T03:56:30Z
• Authors: N.H. Matlis; F. Ahr; A.-L. Calendron; H. Cankaya; G. Cirmi; T. Eichner; A. Fallahi; M. Fakhari; A. Hartin; M. Hemmer; W.R. Huang; H. Ishizuki; S.W. Jolly; V. Leroux; A.R. Maier; J. Meier; W. Qiao; K. Ravi; D.N. Schimpf; T. Taira; X. Wu; L. Zapata; C. Zapata; D. Zhang; C. Zhou; F.X. Kärtner
• Keywords: 0301 basic medicine; 0303 health sciences; 03 medical and health sciences; Optique; Optique non linéaire; info:eu-repo/classification/ddc/530; 530; 7. Clean energy

We describe initial steps in the development of the technology for a THz-driven accelerator that will drive a compact attosecond X-ray light source. THz- driven structures represent a promising emerging technology for compact acceleration of sub-femtosecond electron bunches. The millimeter scale of the driving field offers a favorable compromise between conventional accelerators which are proven and reliable but large and costly, and other advanced accelerators like plasma-based or laser-driven devices where the microscopic accelerator structuresmake device control difficult and limit the charge payload. By contrast the THz-driven structures are large enough to be fabricated by conventional means leading to a high degree of repeatability and control, can support field gradients that are significantly higher than in conventional accelerators, promising capabilities to produce sub-femtosecond electron bunches. In addition, the strong fields in THz based devices offer potential for compact, strong-field manipulation and diagnosis of electron bunches. Our results pave the way for development of a THz-based light source for sub-femtosecond investigation of material structure.<br/>Nuclear instruments & methods in physics research / A 909, 27 - 32 (2018). doi:10.1016/j.nima.2018.01.074<br/>Published by Elsevier, Amsterdam<br/>