Standard

Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror. / Nayuki, Takuya; Fujii, Takashi; Oishi, Yuji; Takano, Kei; Wang, Xiaofang; Andreev, Alexander A.; Nemoto, Koshichi; Ueda, Ken Ichi.

в: Proceedings of SPIE - The International Society for Optical Engineering, Том 6018, 60180F, 2005.

Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование

Harvard

Nayuki, T, Fujii, T, Oishi, Y, Takano, K, Wang, X, Andreev, AA, Nemoto, K & Ueda, KI 2005, 'Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror', Proceedings of SPIE - The International Society for Optical Engineering, Том. 6018, 60180F. https://doi.org/10.1117/12.669278

APA

Nayuki, T., Fujii, T., Oishi, Y., Takano, K., Wang, X., Andreev, A. A., Nemoto, K., & Ueda, K. I. (2005). Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror. Proceedings of SPIE - The International Society for Optical Engineering, 6018, [60180F]. https://doi.org/10.1117/12.669278

Vancouver

Nayuki T, Fujii T, Oishi Y, Takano K, Wang X, Andreev AA и пр. Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror. Proceedings of SPIE - The International Society for Optical Engineering. 2005;6018. 60180F. https://doi.org/10.1117/12.669278

Author

Nayuki, Takuya ; Fujii, Takashi ; Oishi, Yuji ; Takano, Kei ; Wang, Xiaofang ; Andreev, Alexander A. ; Nemoto, Koshichi ; Ueda, Ken Ichi. / Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror. в: Proceedings of SPIE - The International Society for Optical Engineering. 2005 ; Том 6018.

BibTeX

@article{3e04cca7639949dbacafa96c5f47068a,
title = "Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror",
abstract = "The generation of energetic protons using a polyimide tape of 7.5 μm thickness was carried out with laser pulses of 30 mJ energy and 80 fs duration. A deformable mirror system with a genetic algorithm (GA) was developed to optimize the laser-focusing spot. The fitness values used in the GA were measured from the focusing intensities under the low-gain condition of the power amplifier, or from x-ray in situ signals emitted from the target. Although we obtained a diffraction-limited size of 2 μm (full width at half maximum) using the former value, a precise optimization using the latter value was essential to accelerate protons whose flux was 106/MeV/shot to a maximum energy of 1.1 ± 0.3 MeV with laser pulses of only 30 mJ energy since a laser spot that is too tight may be sensitive to wave-front distortion caused by residual thermal lenses of the power amplifier.",
keywords = "Deformable mirror, Genetic algorithm, Polyimide, Proton acceleration",
author = "Takuya Nayuki and Takashi Fujii and Yuji Oishi and Kei Takano and Xiaofang Wang and Andreev, {Alexander A.} and Koshichi Nemoto and Ueda, {Ken Ichi}",
year = "2005",
doi = "10.1117/12.669278",
language = "English",
volume = "6018",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",
note = "5th International Workshop on Adaptive Optics for Industry and Medicine ; Conference date: 29-08-2005 Through 01-09-2005",

}

RIS

TY - JOUR

T1 - Generation of MeV proton with 30 mJ laser energy by optimizing focusing spot using deformable mirror

AU - Nayuki, Takuya

AU - Fujii, Takashi

AU - Oishi, Yuji

AU - Takano, Kei

AU - Wang, Xiaofang

AU - Andreev, Alexander A.

AU - Nemoto, Koshichi

AU - Ueda, Ken Ichi

PY - 2005

Y1 - 2005

N2 - The generation of energetic protons using a polyimide tape of 7.5 μm thickness was carried out with laser pulses of 30 mJ energy and 80 fs duration. A deformable mirror system with a genetic algorithm (GA) was developed to optimize the laser-focusing spot. The fitness values used in the GA were measured from the focusing intensities under the low-gain condition of the power amplifier, or from x-ray in situ signals emitted from the target. Although we obtained a diffraction-limited size of 2 μm (full width at half maximum) using the former value, a precise optimization using the latter value was essential to accelerate protons whose flux was 106/MeV/shot to a maximum energy of 1.1 ± 0.3 MeV with laser pulses of only 30 mJ energy since a laser spot that is too tight may be sensitive to wave-front distortion caused by residual thermal lenses of the power amplifier.

AB - The generation of energetic protons using a polyimide tape of 7.5 μm thickness was carried out with laser pulses of 30 mJ energy and 80 fs duration. A deformable mirror system with a genetic algorithm (GA) was developed to optimize the laser-focusing spot. The fitness values used in the GA were measured from the focusing intensities under the low-gain condition of the power amplifier, or from x-ray in situ signals emitted from the target. Although we obtained a diffraction-limited size of 2 μm (full width at half maximum) using the former value, a precise optimization using the latter value was essential to accelerate protons whose flux was 106/MeV/shot to a maximum energy of 1.1 ± 0.3 MeV with laser pulses of only 30 mJ energy since a laser spot that is too tight may be sensitive to wave-front distortion caused by residual thermal lenses of the power amplifier.

KW - Deformable mirror

KW - Genetic algorithm

KW - Polyimide

KW - Proton acceleration

UR - http://www.scopus.com/inward/record.url?scp=33644810599&partnerID=8YFLogxK

U2 - 10.1117/12.669278

DO - 10.1117/12.669278

M3 - Conference article

AN - SCOPUS:33644810599

VL - 6018

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 60180F

T2 - 5th International Workshop on Adaptive Optics for Industry and Medicine

Y2 - 29 August 2005 through 1 September 2005

ER -

ID: 85669669