Lasers As Particle Accelerators In Medicine: From Laser-Driven Protons To Imaging With Thomson Sources
- Brookhaven National Laboratory, Accelerator Test Facility, Upton NY 11973 (United States)
- Blackett Laboratory, Imperial College London, SW7 2BW (United Kingdom)
- State University of New York, Stony Brook, NY 11794 (United States)
- University of California, Los Angeles, Department of Physics and Astronomy, Los Angeles, CA 90095 (United States)
- Struttura Dipartimentale di Matematica e Fisica, Univ. di Sassari and INFN, Sezione di Cagliari 07100 (Italy)
- Dipartimento di Fisica 'E. Fermi', Universita di Pisa, Largo B. Pontecorvo 3, 56127 Pisa (Italy) and INFN, Sezione di Pisa 56127 (Italy)
We report our recent progress using a high-power, picosecond CO{sub 2} laser for Thomson scattering and ion acceleration experiments. These experiments capitalize on certain advantages of long-wavelength CO{sub 2} 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 CO{sub 2} laser. This development will enable an advance to the laser-driven proton cancer therapy.
- OSTI ID:
- 21513383
- Journal Information:
- AIP Conference Proceedings, Vol. 1336, Issue 1; Conference: CAARI 2010: 21. International Conference on the Application of Accelerators in Research and Industry, Fort Worth, TX (United States), 8-13 Aug 2010; Other Information: DOI: 10.1063/1.3586126; (c) 2011 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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PONDEROMOTIVE FORCE
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