S H Shin and M Yoon 2006 J. Phys. D: Appl. Phys. 39 1584 doi:10.1088/0022-3727/39/8/017
Femto-second electron pulses from an rf linear accelerator as a far-infrared radiation source
S H Shin and M Yoon1
Show affiliationsFemto-second radiation pulses are becoming an important tool for studying the dynamics of materials at an atomic level. Various methods of generating femto-second electron pulses have been developed, including a thermionic rf gun combined with an alpha magnet. In this paper, we focus on the utilization of a photo-cathode rf gun and an rf linear accelerator to generate far-infrared (FIR) radiation. We demonstrate that with a magnetic chicane the electron beam pulse can be compressed to less than rms 20 fs at an energy between 30 and 50 MeV. Geometrical wake fields due to the rf linear accelerator and the coherent synchrotron radiation effects in the magnetic chicane are included in the study. We suggest a possible improvement of the existing 80 MeV rf linear accelerator at the Pohang Accelerator Laboratory to employ it as a coherent FIR radiation source. We focus on extending the radiation wave number 
to greater than 1500 cm−1 with a micro-pulse energy of more than 100 µJ, which are the conditions required for femto-dynamics studies.
- PACS
-
29.27.Eg Beam handling; beam transport
07.57.Hm Infrared, submillimeter wave, microwave, and radiowave sources
- Subjects
-
Accelerators, beams and electromagnetism
- Dates
-
Issue 8 (21 April 2006)
Received 16 September 2005
Published 30 March 2006
-
Femto-second electron pulses from an rf linear accelerator as a far-infrared radiation source
S H Shin and M Yoon 2006 J. Phys. D: Appl. Phys. 39 1584
-
Dynamical spin-blockade in a quantum dot with paramagnetic leads
A. Cottet and W. Belzig 2004 Europhys. Lett. 66 405
-
General relativity and conformal invariance. I. A new look at some old field equations
G J Suggett 1979 J. Phys. A: Math. Gen. 12 367
-
Fermion-field theory and configuration averaging. III. Off-diagonal disorder and bond CPA
A Mookerjee 1975 J. Phys. C: Solid State Phys. 8 2943
-
Electronic transport in insulating AlPdRe quasicrystals
Ralph Rosenbaum et al 2004 J. Phys.: Condens. Matter 16 821
-
A new form of the rotating C-metric
Kenneth Hong and Edward Teo 2005 Class. Quantum Grav. 22 109
-
Orders of magnitude
1998 Phys. Educ. 33
-
Universality of the Einstein equations for Ricci squared Lagrangians
Andrzej Borowiec et al 1998 Class. Quantum Grav. 15 43
-
A study of the gravitational wave form from pulsars
S R Valluri et al 2002 Class. Quantum Grav. 19 1327
-
Biological functions of soliton and extra electron motion in DNA structure
Guo-Ping Zhou 1989 Phys. Scr. 40 698
Related review articles
What's this?- MUSE, the goddess of muons, and her future
- From single photons to milliwatt radiant power—electron storage rings as radiation sources with a high dynamic range
- Extreme states of matter on Earth and in space