1. High-Resolutionγ-Ray Radiography Produced by a Laser-Plasma Driven Electron Source
- Author
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Frédéric Burgy, Jean-Philippe Rousseau, L. Le Dain, Brigitte Mercier, Y. Glinec, S. Darbon, Joao Santos, Erik Lefebvre, Victor Malka, Takuya Hosokai, Jérôme Faure, Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Département de Physique Théorique et Appliquée (DPTA), DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Nuclear Engineering Research Laboratory, and The University of Tokyo (UTokyo)
- Subjects
Physics ,[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] ,Astrophysics::High Energy Astrophysical Phenomena ,Resolution (electron density) ,Monte Carlo method ,Bremsstrahlung ,General Physics and Astronomy ,Plasma ,Plasma acceleration ,Laser ,01 natural sciences ,010305 fluids & plasmas ,law.invention ,law ,0103 physical sciences ,Cathode ray ,Physics::Accelerator Physics ,Atomic physics ,010306 general physics ,PACS 52.38.Kd ,41.85.Ja ,87.59.Bh ,Beam (structure) - Abstract
An electron beam from a laser-plasma accelerator is converted into a $\ensuremath{\gamma}$-ray source using bremsstrahlung radiation in a dense material. The $\ensuremath{\gamma}$-ray beam has a pointlike source size because it is generated by a high quality electron beam with a small source size and a low divergence. Using this $\ensuremath{\gamma}$-ray source, the radiography of complex and dense objects with submillimeter resolution is performed. It is the first evidence of a $\ensuremath{\gamma}$-ray source size of a few hundreds micrometers produced with laser-driven accelerators. This size is consistent with results from Monte Carlo simulations.
- Published
- 2005
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