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Lasers as particle accelerators in medicine: from laser‐driven protons to imaging with Thomson sources

Pogorelsky, Igor and Babzien, Marcus and Polyanskiy, Mikhail N. and Yakimenko, Vitaly and Dover, Nicholas P. and Palmer, Charlotte A. J. and Najmudin, Zulfikar and Shkolnikov, Peter and Williams, Oliver and Rosenzweig, James and Oliva, Piernicola and Carpinelli, Massimo and Golosio, Bruno and Delogu, Pasquale and Stefanini, Arnaldo and Endrizzi, Marco (2011) Lasers as particle accelerators in medicine: from laser‐driven protons to imaging with Thomson sources. AIP Conference Proceedings, Vol. 1336 , p. 386-390. eISSN 1551-7616. Article.

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DOI: 10.1063/1.3586126

Abstract

We report our recent progress using a high‐power, picosecond CO2 laser for Thomson scattering and ion acceleration experiments. These experiments capitalize on certain advantages of long‐wavelength CO2 lasers, such as their high number of photons per energy unit and beneficial wavelength‐ scaling of the electrons’ ponderomotive energy and critical plasma frequency. High X‐ray fluxes produced in the interactions of the counter‐propagating laser‐ and electron‐beams for obtaining single‐shot, high‐contrast images of biological objects. The laser, focused on a hydrogen jet, generated a monoenergetic proton beam via the radiation‐pressure mechanism. The energy of protons produced by this method scales linearly with the laser’s intensity. We present a plan for scaling the process into the range of 100‐MeV proton energy via upgrading the CO2 laser. This development will enable an advance to the laser‐driven proton cancer therapy.

Item Type:Article
ID Code:6984
Status:Published
Refereed:Yes
Uncontrolled Keywords:Electron beams, radiation therapy, cancer, solid lasers
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze botaniche, ecologiche e geologiche
Publisher:American Institute of Physics
eISSN:1551-7616
Additional Information:Presented at the Twenty-First International Conference: Application of accelerators in Research and Industry, 8–13 August 2010, Fort Worth, Texas, (USA). - ISBN 978-0-7354-0891-3.
Deposited On:18 Jan 2012 12:32

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