Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments

SPD Mangles; AGR Thomas; AGR Thomas; MC Kaluza; MC Kaluza; Olle Lundh; Filip Lindau; Anders Persson; Z Najmudin; Z Najmudin; Claes-Göran Wahlström; CD Murphy; CD Murphy; C Kamperidis; C Kamperidis; KL Lancaster; KL Lancaster; E Divall; K Krushelnick; E Divall; K Krushelnick

doi:10.1088/0741-3335/48/12B/S08

Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments

SPD Mangles, AGR Thomas, AGR Thomas, MC Kaluza, MC Kaluza, Olle Lundh, Filip Lindau, Anders Persson, Z Najmudin, Z Najmudin, Claes-Göran Wahlström, CD Murphy, CD Murphy, C Kamperidis, C Kamperidis, KL Lancaster, KL Lancaster, E Divall, K Krushelnick, E DivallK Krushelnick

Atomic Physics

Research output: Contribution to journal › Article › peer-review

Abstract

Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large
pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%).

Original language	English
Pages (from-to)	B83-B90
Journal	Plasma Physics and Controlled Fusion
Volume	48
Issue number	12B
DOIs	https://doi.org/10.1088/0741-3335/48/12B/S08
Publication status	Published - 2006

Subject classification (UKÄ)

Atom and Molecular Physics and Optics

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10.1088/0741-3335/48/12B/S08

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Mangles, SPD., Thomas, AGR., Thomas, AGR., Kaluza, MC., Kaluza, MC., Lundh, O., Lindau, F., Persson, A., Najmudin, Z., Najmudin, Z., Wahlström, C.-G., Murphy, CD., Murphy, CD., Kamperidis, C., Kamperidis, C., Lancaster, KL., Lancaster, KL., Divall, E., Krushelnick, K., ... Krushelnick, K. (2006). Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments. Plasma Physics and Controlled Fusion, 48(12B), B83-B90. https://doi.org/10.1088/0741-3335/48/12B/S08

@article{4ebca32e1e554901bdab273da5b1bbea,

title = "Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments",

abstract = "Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%).",

author = "SPD Mangles and AGR Thomas and AGR Thomas and MC Kaluza and MC Kaluza and Olle Lundh and Filip Lindau and Anders Persson and Z Najmudin and Z Najmudin and Claes-G{\"o}ran Wahlstr{\"o}m and CD Murphy and CD Murphy and C Kamperidis and C Kamperidis and KL Lancaster and KL Lancaster and E Divall and K Krushelnick and E Divall and K Krushelnick",

year = "2006",

doi = "10.1088/0741-3335/48/12B/S08",

language = "English",

volume = "48",

pages = "B83--B90",

journal = "Plasma Physics and Controlled Fusion",

issn = "0741-3335",

publisher = "IOP Publishing",

number = "12B",

}

Mangles, SPD, Thomas, AGR, Thomas, AGR, Kaluza, MC, Kaluza, MC, Lundh, O, Lindau, F, Persson, A, Najmudin, Z, Najmudin, Z, Wahlström, C-G, Murphy, CD, Murphy, CD, Kamperidis, C, Kamperidis, C, Lancaster, KL, Lancaster, KL, Divall, E, Krushelnick, K, Divall, E & Krushelnick, K 2006, 'Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments', Plasma Physics and Controlled Fusion, vol. 48, no. 12B, pp. B83-B90. https://doi.org/10.1088/0741-3335/48/12B/S08

TY - JOUR

T1 - Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments

AU - Mangles, SPD

AU - Thomas, AGR

AU - Kaluza, MC

AU - Lundh, Olle

AU - Lindau, Filip

AU - Persson, Anders

AU - Najmudin, Z

AU - Wahlström, Claes-Göran

AU - Murphy, CD

AU - Kamperidis, C

AU - Lancaster, KL

AU - Divall, E

AU - Krushelnick, K

AU - Divall, E

AU - Krushelnick, K

PY - 2006

Y1 - 2006

N2 - Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%).

AB - Laser wakefield accelerators offer the possibility of compact electron acceleration. However one of the key outstanding issues with the results reported to date is the electron beam stability. Experiments on two laser systems reveal that the contrast ratio between the ASE pedestal and main pulse is an important factor in determining the quality of the electron beam. With a high contrast ratio (10^8) the electron beam profile is a well collimated single beam having a low pointing instability (<10 mrad rms). With a lower contrast (10^6) the beam profile contains multiple beamlets which exhibit a large pointing instability (~50 mrad rms). Ahigh contrast ratio not only improves the beam pointing stability (~6 mrad) but also stabilizes the electron beam energy reproducibility (5%).

U2 - 10.1088/0741-3335/48/12B/S08

DO - 10.1088/0741-3335/48/12B/S08

M3 - Article

SN - 0741-3335

VL - 48

SP - B83-B90

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

IS - 12B

ER -

Effect of contrast ratio on electron beam stability in laser wakefield acceleration experiments

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