Ultrashort electron bunch length measurements at DUVFEL

William Graves; G. L. Carr; L. F. DiMauro; A. Doyuran; R. Heese; E. D. Johnson; C. Neuman; G. Rakowsky; J. Rose; J. Rudati; T. Shaftan; B. Sheehy; J. Skaritka; L. H. Yu; D. H. Dowell

Ultrashort electron bunch length measurements at DUVFEL

William Graves, G. L. Carr, L. F. DiMauro, A. Doyuran, R. Heese, E. D. Johnson, C. Neuman, G. Rakowsky, J. Rose, J. Rudati, T. Shaftan, B. Sheehy, J. Skaritka, L. H. Yu, D. H. Dowell

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Scopus citations

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

ASJC Scopus subject areas

Engineering(all)

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Graves, W., 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. (2001). Ultrashort electron bunch length measurements at DUVFEL. In P. Lucas, & S. Webber (Eds.), Proceedings of the IEEE Particle Accelerator Conference (Vol. 3, pp. 2224-2226)

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

Graves, W, Carr, GL, DiMauro, LF, Doyuran, A, Heese, R, Johnson, ED, Neuman, C, Rakowsky, G, Rose, J, Rudati, J, Shaftan, T, Sheehy, B, Skaritka, J, Yu, LH & Dowell, DH 2001, Ultrashort electron bunch length measurements at DUVFEL. in P Lucas & S Webber (eds), Proceedings of the IEEE Particle Accelerator Conference. vol. 3, pp. 2224-2226, 2001 Particle Accelerator Conference, Chicago, IL, United States, 6/18/01.

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. / Ultrashort electron bunch length measurements at DUVFEL. Proceedings of the IEEE Particle Accelerator Conference. editor / P Lucas ; S Webber. Vol. 3 2001. pp. 2224-2226

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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.",

author = "William Graves and Carr, {G. L.} and DiMauro, {L. F.} and A. Doyuran and R. Heese and Johnson, {E. D.} and C. Neuman and G. Rakowsky and J. Rose and J. Rudati and T. Shaftan and B. Sheehy and J. Skaritka and Yu, {L. H.} and Dowell, {D. H.}",

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AU - Johnson, E. D.

AU - Neuman, C.

AU - Rakowsky, G.

AU - Rose, J.

AU - Rudati, J.

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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.

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