T Nandi and B P Mohanty 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225402 doi:10.1088/0953-4075/42/22/225402
Measurement of wakefield intensity
T Nandi1 and B P Mohanty2
Show affiliationsWe report on the measurement of the wakefield of an ion moving through a beam–foil plasma using an indirect experimental method. The standard beam–foil time-of-flight technique is used to measure the lifetime of the perturbed H-like V 2s2S1/2 state due to its passage through the wakefield. This measured lifetime along with the theoretical lifetimes of pure H-like V 2s2S1/2 and 2p2P1/2 states has been used to determine the Stark mixing parameter of H-like 2s2S1/2 and 2p2P1/2 states, which is further exploited to determine the wakefield at the surface of the exit foil. The wakefield intensity during the passage of 160 MeV 5123V ion through thin C-foil as well as Au-foil is found to be as high as 3.2 ± 0.07 × 107 V cm−1.
- PACS
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32.60.+i Zeeman and Stark effects
52.20.Hv Atomic, molecular, ion, and heavy-particle collisions
32.70.Cs Oscillator strengths, lifetimes, transition moments
- Subjects
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Accelerators, beams and electromagnetism
- Dates
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Issue 22 (28 November 2009)
Received 1 September 2009
Published 30 October 2009
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Measurement of wakefield intensity
T Nandi and B P Mohanty 2009 J. Phys. B: At. Mol. Opt. Phys. 42 225402
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