Abstract
| Original language | English |
|---|---|
| Title of host publication | Proceedings of DIPAC 2007 |
| Editors | Ivan Andrian, Volker R. W. Schaa |
| Publisher | DIPAC |
| Pages | 221-223 |
| Number of pages | 3 |
| State | Published - 31 Oct 2008 |
| Event | 8th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators - Venice, Italy |
Workshop
| Workshop | 8th European Workshop on Beam Diagnostics and Instrumentation for Particle Accelerators |
|---|---|
| Abbreviated title | DIPAC 2007 |
| Country | Italy |
| City | Venice |
| Period | 20/05/07 → 23/05/07 |
| Internet address |
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Single shot longitudinal bunch profile measurements by temporally resolved electro-optical detection. / Phillips, P. J.; Gillespie, W. Allan; Steffen, B.; Knabbe, E. A.; Schmidt, B.; Schmüser, P.; Jamison, S. P.; Berden, G.; van der Meer, A. F. G.; MacLeod, Allan M.
Proceedings of DIPAC 2007. ed. / Ivan Andrian; Volker R. W. Schaa. DIPAC, 2008. p. 221-223.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - CHAP
T1 - Single shot longitudinal bunch profile measurements by temporally resolved electro-optical detection
AU - Phillips,P. J.
AU - Gillespie,W. Allan
AU - Steffen,B.
AU - Knabbe,E. A.
AU - Schmidt,B.
AU - Schmüser,P.
AU - Jamison,S. P.
AU - Berden,G.
AU - van der Meer,A. F. G.
AU - MacLeod,Allan M.
PY - 2008/10/31
Y1 - 2008/10/31
N2 - For the high gain operation of a SASE FEL, extremely short electron bunches are essential to generate sufficiently high peak currents. At the superconducting linac of FLASH at DESY, we have installed an electro- optic measurement system to probe the time structure of the electric field of single ~100 fs electron bunches. In this technique, the field induced birefringence in an electro-optic crystal is encoded on a chirped picosecond laser pulse. The longitudinal electric field profile of the electron bunch is then obtained from the encoded optical pulse by a single shot cross correlation with a 35 fs laser pulse using a second harmonic crystal (temporal decoding). An electro-optical signal exhibiting a feature with 118 fs FWHM was observed, and this is close to the limit of resolution due to the material properties of the particular electro-optic crystal used. The measured electro-optic signals are compared to bunch shapes simultaneously measured with a transverse deflecting cavity.
AB - For the high gain operation of a SASE FEL, extremely short electron bunches are essential to generate sufficiently high peak currents. At the superconducting linac of FLASH at DESY, we have installed an electro- optic measurement system to probe the time structure of the electric field of single ~100 fs electron bunches. In this technique, the field induced birefringence in an electro-optic crystal is encoded on a chirped picosecond laser pulse. The longitudinal electric field profile of the electron bunch is then obtained from the encoded optical pulse by a single shot cross correlation with a 35 fs laser pulse using a second harmonic crystal (temporal decoding). An electro-optical signal exhibiting a feature with 118 fs FWHM was observed, and this is close to the limit of resolution due to the material properties of the particular electro-optic crystal used. The measured electro-optic signals are compared to bunch shapes simultaneously measured with a transverse deflecting cavity.
M3 - Conference contribution
SP - 221
EP - 223
BT - Proceedings of DIPAC 2007
PB - DIPAC
ER -