Abstract
The DUVFEL electron linac is designed to produce sub-picosecond, high brightness electron bunches for driving a short wavelength FEL. Four experiments have been commissioned to address the challenge of accurately measuring bunch lengths on this timescale. In the frequency domain, a short 12 period undulator is used to produce both off-axis coherent emission and on-axis incoherent single-shot spectra. The total coherent infrared power scales inversely with bunch length and the spectral cutoff is an indication of bunch length. The density of power spikes in the single-shot visible spectrum may also be used to estimate bunch length. In the time domain, the linac accelerating sections and a bending magnet are used to implement the RF-zero phasing method, and a sub-picosecond streak camera is also installed. Beam measurements and comparisons of these methods are reported.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of the IEEE Particle Accelerator Conference |
| Editors | P Lucas, S Webber |
| Pages | 2224-2226 |
| Number of pages | 3 |
| Volume | 3 |
| State | Published - 2001 |
| Externally published | Yes |
| Event | 2001 Particle Accelerator Conference - Chicago, IL, United States Duration: Jun 18 2001 → Jun 22 2001 |
Other
| Other | 2001 Particle Accelerator Conference |
|---|---|
| Country | United States |
| City | Chicago, IL |
| Period | 6/18/01 → 6/22/01 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Ultrashort electron bunch length measurements at DUVFEL. / Graves, William; Carr, G. L.; DiMauro, L. F.; Doyuran, A.; Heese, R.; Johnson, E. D.; Neuman, C.; Rakowsky, G.; Rose, J.; Rudati, J.; Shaftan, T.; Sheehy, B.; Skaritka, J.; Yu, L. H.; Dowell, D. H.
Proceedings of the IEEE Particle Accelerator Conference. ed. / P Lucas; S Webber. Vol. 3 2001. p. 2224-2226.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Ultrashort electron bunch length measurements at DUVFEL
AU - Graves, William
AU - Carr, G. L.
AU - DiMauro, L. F.
AU - Doyuran, A.
AU - Heese, R.
AU - Johnson, E. D.
AU - Neuman, C.
AU - Rakowsky, G.
AU - Rose, J.
AU - Rudati, J.
AU - Shaftan, T.
AU - Sheehy, B.
AU - Skaritka, J.
AU - Yu, L. H.
AU - Dowell, D. H.
PY - 2001
Y1 - 2001
N2 - The DUVFEL electron linac is designed to produce sub-picosecond, high brightness electron bunches for driving a short wavelength FEL. Four experiments have been commissioned to address the challenge of accurately measuring bunch lengths on this timescale. In the frequency domain, a short 12 period undulator is used to produce both off-axis coherent emission and on-axis incoherent single-shot spectra. The total coherent infrared power scales inversely with bunch length and the spectral cutoff is an indication of bunch length. The density of power spikes in the single-shot visible spectrum may also be used to estimate bunch length. In the time domain, the linac accelerating sections and a bending magnet are used to implement the RF-zero phasing method, and a sub-picosecond streak camera is also installed. Beam measurements and comparisons of these methods are reported.
AB - The DUVFEL electron linac is designed to produce sub-picosecond, high brightness electron bunches for driving a short wavelength FEL. Four experiments have been commissioned to address the challenge of accurately measuring bunch lengths on this timescale. In the frequency domain, a short 12 period undulator is used to produce both off-axis coherent emission and on-axis incoherent single-shot spectra. The total coherent infrared power scales inversely with bunch length and the spectral cutoff is an indication of bunch length. The density of power spikes in the single-shot visible spectrum may also be used to estimate bunch length. In the time domain, the linac accelerating sections and a bending magnet are used to implement the RF-zero phasing method, and a sub-picosecond streak camera is also installed. Beam measurements and comparisons of these methods are reported.
UR - http://www.scopus.com/inward/record.url?scp=0035570459&partnerID=8YFLogxK
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M3 - Conference contribution
VL - 3
SP - 2224
EP - 2226
BT - Proceedings of the IEEE Particle Accelerator Conference
A2 - Lucas, P
A2 - Webber, S
ER -