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Design of Bunch Length Measurement System at the IRFEL Using a Martin-Puplett Interferometer
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhou, Tianyu Liu, Xiaoyang Lu, Ping Sun, Bao-Gen Tang, Leilei Wu, Fangfang Yang, Yongliang Zhou, Zeran |
| Copyright Year | 2016 |
| Abstract | Electron bunch length measurement is of great significance for optimizing IRFEL performance. An optical autocorrelation system using coherent transition radiation (CTR) would be set up to measure the electron bunch length at the IRFEL. CTR can be occurred when short electron bunches traverse a vacuum-metal interface. A Martin-Puplett interferometer allowed measurement of the autocorrelation of the CTR signal. The basic principle and the main components of Martin-Puplett interferometer are elaborated in this paper. INTRODUCTION With the development of the high pulse intensity and ultrashort pulse duration of the Infrared Free Electron Laser (IRFEL), which overcomes the shortages of traditional infrared spectroscopy, such as low sensitivity, low spacial and low time resolution. This project will significantly promote the progress in energy chemistry, and establish a fundamental scientific research to reach the international advanced level. A schematic view is shown in Fig. 1, with the design parameters listed in Table 1. The measurements of bunch length can fall to two categories: time domain measurements and frequency domain measurements [1]. In the time domain techniques, streak camera is usually used. But the resolution limit of streak camera is 200 fs and streak camera is too expensive. Instead of time domain techniques, frequency domain measurements using Coherent Transition Radiation (CTR) is employed. Figure 1: Schematic view of NSRL IRFEL. Table 1: Parameters of the IRFEL |
| Starting Page | 178 |
| Ending Page | 180 |
| Page Count | 3 |
| File Format | PDF HTM / HTML |
| DOI | 10.18429/JACoW-IPAC2016-MOPMB039 |
| Alternate Webpage(s) | http://accelconf.web.cern.ch/AccelConf/ipac2016/papers/mopmb039.pdf |
| Alternate Webpage(s) | https://doi.org/10.18429/JACoW-IPAC2016-MOPMB039 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
