Microbunching and beam break-up in DUV-FEL accelerator

T. Shaftan; H. Loos; B. Sheehy; L. Carr; Z. Huang; C. Limborg; William Graves

Microbunching and beam break-up in DUV-FEL accelerator

T. Shaftan, H. Loos, B. Sheehy, L. Carr, Z. Huang, C. Limborg, William Graves

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

Abstract

We present the results of electron beam longitudinal modulation studies in the DUV-FEL accelerator. For bunch length determination we used the "zero-phasing" method, based on a measurement of the chirped electron bunch energy spectra. The measurements revealed a spiky structure in the longitudinal phase space [1]. A model based on space charge effect is considered [2] to explain of the obtained phenomena. The analysis of the energy spectra has shown a sensitivity of the structure to the electron beam peak current, energy and longitudinal non-uniformity of the RF gun drive laser. Analytical calculations have demonstrated a qualitative agreement with experimental observations. Several experiments have been made to compare with theory; measured results are reviewed in this paper. The obtained effect is briefly discussed in relation to high brightness accelerators.

Original language	English (US)
Title of host publication	Proceedings of the IEEE Particle Accelerator Conference
Editors	J. Chew, P. Lucas, S. Webber
Pages	329-331
Number of pages	3
Volume	1
State	Published - 2003
Externally published	Yes
Event	PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference - Portland, OR, United States Duration: May 12 2003 → May 16 2003

Other

Other	PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference
Country/Territory	United States
City	Portland, OR
Period	5/12/03 → 5/16/03

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Microbunching and beam break-up in DUV-FEL accelerator",

abstract = "We present the results of electron beam longitudinal modulation studies in the DUV-FEL accelerator. For bunch length determination we used the {"}zero-phasing{"} method, based on a measurement of the chirped electron bunch energy spectra. The measurements revealed a spiky structure in the longitudinal phase space [1]. A model based on space charge effect is considered [2] to explain of the obtained phenomena. The analysis of the energy spectra has shown a sensitivity of the structure to the electron beam peak current, energy and longitudinal non-uniformity of the RF gun drive laser. Analytical calculations have demonstrated a qualitative agreement with experimental observations. Several experiments have been made to compare with theory; measured results are reviewed in this paper. The obtained effect is briefly discussed in relation to high brightness accelerators.",

author = "T. Shaftan and H. Loos and B. Sheehy and L. Carr and Z. Huang and C. Limborg and William Graves",

year = "2003",

language = "English (US)",

volume = "1",

pages = "329--331",

editor = "J. Chew and P. Lucas and S. Webber",

booktitle = "Proceedings of the IEEE Particle Accelerator Conference",

note = "PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference ; Conference date: 12-05-2003 Through 16-05-2003",

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TY - GEN

T1 - Microbunching and beam break-up in DUV-FEL accelerator

AU - Shaftan, T.

AU - Loos, H.

AU - Sheehy, B.

AU - Carr, L.

AU - Huang, Z.

AU - Limborg, C.

AU - Graves, William

PY - 2003

Y1 - 2003

N2 - We present the results of electron beam longitudinal modulation studies in the DUV-FEL accelerator. For bunch length determination we used the "zero-phasing" method, based on a measurement of the chirped electron bunch energy spectra. The measurements revealed a spiky structure in the longitudinal phase space [1]. A model based on space charge effect is considered [2] to explain of the obtained phenomena. The analysis of the energy spectra has shown a sensitivity of the structure to the electron beam peak current, energy and longitudinal non-uniformity of the RF gun drive laser. Analytical calculations have demonstrated a qualitative agreement with experimental observations. Several experiments have been made to compare with theory; measured results are reviewed in this paper. The obtained effect is briefly discussed in relation to high brightness accelerators.

AB - We present the results of electron beam longitudinal modulation studies in the DUV-FEL accelerator. For bunch length determination we used the "zero-phasing" method, based on a measurement of the chirped electron bunch energy spectra. The measurements revealed a spiky structure in the longitudinal phase space [1]. A model based on space charge effect is considered [2] to explain of the obtained phenomena. The analysis of the energy spectra has shown a sensitivity of the structure to the electron beam peak current, energy and longitudinal non-uniformity of the RF gun drive laser. Analytical calculations have demonstrated a qualitative agreement with experimental observations. Several experiments have been made to compare with theory; measured results are reviewed in this paper. The obtained effect is briefly discussed in relation to high brightness accelerators.

UR - http://www.scopus.com/inward/record.url?scp=4143101563&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4143101563&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:4143101563

VL - 1

SP - 329

EP - 331

BT - Proceedings of the IEEE Particle Accelerator Conference

A2 - Chew, J.

A2 - Lucas, P.

A2 - Webber, S.

T2 - PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference

Y2 - 12 May 2003 through 16 May 2003

ER -

Microbunching and beam break-up in DUV-FEL accelerator

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