Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 61 / Number 1T
M. M. Günther, J. Schütrumpf, A. Britz, K. Vogt, K. Sonnabend, M. Roth
Fusion Science and Technology
Volume 61 / Number 1T / January 2012 / Pages 231-236
Format:electronic copy (download)
We present a novel nuclear activation-based method for the investigation of high-energy photons and electron dynamics within the laser-plasma interaction zone. This method is based on high density activation targets which are a pseudoalloy of several selected isotopes with different photo-neutron disintegration reaction thresholds. The gamma decay spectrum emitted by the activated target is used for the reconstruction of the bremsstrahlung spectrum generated by the electrons. This allows for the reconstruction of the spectrum of bremsstrahlung photons without any anticipated fit procedures. Furthermore, the characterization of the electrons in the interaction zone is accessible immediately.The consolidated findings about the interaction mechanisms could be used to realize, control and characterize laser driven particle generation, such as a pulsed neutron source for nuclear and material sciences using special target designs and materials in a pseudoalloic compound of isotopes. An additional application is the laser assisted nuclear transmutation to produce short-lived isotopes with activities suitable for medical diagnostics and therapy.
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