High-intensity far-infrared light source using the coherent transition radiation from a short electron bunch

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 528; no. 1; pp. 130 - 133
• Main Authors: Okuda, Shuichi, Kojima, Takao, Taniguchi, Ryoichi, Nam, Soon-Kwon
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-08-2004
• Subjects: Bunch form factor; Coherent radiation; Electron linear accelerator; Submillimeter to millimeter wave light source; Transition radiation; 29.17.+w; Coherent radiation; Bunch form factor; Electron linear accelerator; Transition radiation; 42.72.Ai; Submillimeter to millimeter wave light source; 41.60.−m; 42.25.Kb
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2004.04.033

The characteristics of the far-infrared coherent transition radiation light source used for absorption spectroscopy have been investigated. A single-bunch electron beam of an L-band linear accelerator has been used in the experiments. The energy and the electron charge in a bunch of the beam have been 27
MeV and 13.5
nC/bunch, respectively. The accelerator has been operated to obtain high-intensity radiation. The spectrum of the coherent transition radiation from the beam has been measured at wavelengths of 0.4–2
mm and the electron bunch form factor has been given from the spectrum. For the typical geometrical configurations of the light source the light spectrum has been obtained by using the bunch form factor. The characteristics of the light source have been compared with those of the coherent synchrotron radiation.