A platform for highly charged ions: surface–foil–gas–plasma interaction at the IMP

Cheng, Rui; Zhou, Xianming; Sun, Youbin; Lei, Yu; Wang, Xing; Xu, Genhui

doi:10.1088/0031-8949/2011/t144/014015

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…e experiment was performed at the 320 kV high-voltage experimental platform at the Institute of Modern Physics, Chinese Academy of Sciences (IMP, CAS), Lanzhou [36,37]. Proton beams were extracted from the electron cyclotron resonance (ECR) ion source and selected by two 90°bending magnets.…”

Section: Methodsmentioning

confidence: 99%

The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma

et al. 2021

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Energy loss of protons with 90 and 100 keV energies penetrating through a hydrogen plasma target has been measured, where the electron density of the plasma is about 1016 cm−3 and the electron temperature is about 1-2 eV. It is found that the energy loss of protons in the plasma is obviously larger than that in cold gas and the experimental results based on the Bethe model calculations can be demonstrated by the variation of effective charge of protons in the hydrogen plasma. The effective charge remains 1 for 100 keV protons, while the value for 90 keV protons decreases to be about 0.92. Moreover, two empirical formulae are employed to extract the effective charge.

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Section: Methodsmentioning

confidence: 99%

The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma

et al. 2021

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Multiple ionization effects in M X-ray emission induced by heavy ions

et al. 2012

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Energy loss of protons in hydrogen plasma

et al. 2018

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This paper reports the measurement of the energy loss of protons at the energy of 100 keV penetrating a partially ionized hydrogen plasma. The plasma of ne ≈ 1015–16 cm−3; Te ≈ 1–2 eV and lifetime of about 8 µs is created by the hydrogen gas discharge. The experimental results show an increase of a factor of 2.8 in the energy loss, which are in good agreement with the Bethe, Standard Stopping Model, Li–Petrasso and Vlasov models’ predictions within the error limit. The Bethe–Bloch Coulomb logarithm term is found to increase by a factor of 4.0 for free electrons as compared with the situation where bound electrons prevail. The potential application of protons energy loss for diagnosing the electron density in plasma is proposed too.

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A platform for highly charged ions: surface–foil–gas–plasma interaction at the IMP

Cited by 5 publications

References 30 publications

The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma

The Charge State of Protons with 90 and 100 keV Energies Decelerated in Hydrogen Plasma

Multiple ionization effects in M X-ray emission induced by heavy ions

Energy loss of protons in hydrogen plasma

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