Laser Plasma Accelerators for Medical and Nuclear Uses
- Nuclear Professional School, School of Engineering, University of Tokyo, 2-22 Shirakata Shirane, Tokai, Naka, Ibaraki, 319-1188 (Japan)
Starting from the cases of the current clinical facilities as a source of reference to compare with, final performance of lasers and accelerators and even cost target were discussed. We assume maximum flexibility to enable treatment of small as well as large in-depth tumor volumes requiring the maximum energy of 250 MeV for protons and 400 MeV/u for carbon. We adopt their reference numbers for the required total number of protons / carbon ions per fraction (5 min) as well as peak numbers (per second). Other parameters (like energy spread and total number of voxels) are adjusted to the particularities of laser acceleration, which include a much higher production energy spread than in the synchrotron case and a laser pulse rate currently suggested by technology. As far as cost, it is assumed that a single laser driver unit is foreseen for one treatment room. It is suggested that the target for 10-20 years of development could be a cost of the laser driver unit not exceeding 1/4 of the conventional synchrotron facility cost, which is 40 MEuro. Further, design study, proposal and preliminary experimental results for all optical Compton scattering X-ray source for nuclear material detection at University of Tokyo is introduced. By using the Ti:Sapphire laser at about 7 TW and our original gas-jet and magnetic plasma channel, we succeeded in generating more than 100 MeV electrons with a reasonable emittance. Compton scattering with beam-spread Ti:Sapphire laser pulse can yield quasi-monochromatic X-rays around 110 keV near the K-edges of U, Np, Pu. Subtraction imaging across the K-edge realizes clear recognition and distingushment of those compounds in liquid.
- OSTI ID:
- 21428858
- Journal Information:
- AIP Conference Proceedings, Vol. 1299, Issue 1; Conference: 14. advanced accelerator concepts workshop, Annapolis, MD (United States), 13-19 Jun 2010; Other Information: DOI: 10.1063/1.3520413; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ACCELERATION
BEAM PRODUCTION
CARBON IONS
COMPARATIVE EVALUATIONS
COMPTON EFFECT
DESIGN
ELECTRON BEAMS
ION BEAMS
KEV RANGE
LASERS
MEV RANGE
MONOCHROMATIC RADIATION
NEOPLASMS
PLASMA BEAM INJECTION
PLASMA GUNS
PROTON BEAMS
SYNCHROTRONS
X RADIATION
ACCELERATORS
BASIC INTERACTIONS
BEAM INJECTION
BEAMS
CHARGED PARTICLES
CYCLIC ACCELERATORS
DISEASES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
EVALUATION
INTERACTIONS
IONIZING RADIATIONS
IONS
LEPTON BEAMS
NUCLEON BEAMS
PARTICLE BEAMS
RADIATIONS
SCATTERING