Measurement of source profile of proton beams generated by ultraintense laser pulses using a Thomson mass spectrometer

Oishi, Y.; Nayuki, T.; Fujii, T.; Takizawa, Y.; Wang, X.; Yamazaki, T.; Nemoto, K.; Sekiya, T.; Horioka, K.; Andreev, A. A.
May 2005
Journal of Applied Physics;5/15/2005, Vol. 97 Issue 10, p10N301
Academic Journal
For measuring the source profile of proton beams, a method using a Thomson mass spectrometer, which has precise energy resolution and enables the discrimination of ion species, was proposed and applied in an experiment with irradiation of 55-fs, 6.6×1018-W/cm2-laser pulses on a 5-μm-thick copper tape target. The typical measured source size was 150 μm at E=400 keV and 44 μm at E=980 keV in full width at half maximum.


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