Affiliation:
1. Osaka University
2. Budker Institute of Nuclear Physics
Abstract
Ultrafast electron microbunch trains have broad applications in which the individual bunch length and the bunch-to-bunch interval are critical parameters that need to be precisely diagnosed. However, directly measuring these parameters remains challenging. This paper presents an all-optical method that simultaneously measures the individual bunch length and the bunch-to-bunch spacing through an orthogonal THz-driven streak camera. For a 3 MeV electron bunch train, the simulation indicates that the temporal resolution of individual bunch length and the bunch-to-bunch spacing is 2.5 fs and 1 fs, respectively. Through this method, we expect to open a new chapter in the temporal diagnostic of electron bunch trains.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Science and Technology Project of State Grid
Subject
Atomic and Molecular Physics, and Optics