For the microwave cavity resonance spectroscopy based non-destructive beam monitor for ionizing radiation, an addition - which adapts the approach to conditions where only little ionization takes place due to, e.g., small ionization cross sections, low gas pressures, and low photon fluxes - is presented and demonstrated. In this experiment, a magnetic field with a strength of 57 ± 1 mT was used to extend the lifetime of the afterglow of an extreme ultraviolet-induced plasma by a factor of ~5. Magnetic trapping is expected to be most successful in preventing the decay of ephemeral free electrons created by low-energy photons. Good agreement has been found between the experimental results and the decay rates calculated based on the ambipolar and classical collision diffusion models.
Magnetic field-enhanced beam monitor for ionizing radiation
Zangrando M;
2020
Abstract
For the microwave cavity resonance spectroscopy based non-destructive beam monitor for ionizing radiation, an addition - which adapts the approach to conditions where only little ionization takes place due to, e.g., small ionization cross sections, low gas pressures, and low photon fluxes - is presented and demonstrated. In this experiment, a magnetic field with a strength of 57 ± 1 mT was used to extend the lifetime of the afterglow of an extreme ultraviolet-induced plasma by a factor of ~5. Magnetic trapping is expected to be most successful in preventing the decay of ephemeral free electrons created by low-energy photons. Good agreement has been found between the experimental results and the decay rates calculated based on the ambipolar and classical collision diffusion models.| File | Dimensione | Formato | |
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2020_RSI20-AR-00381-2-11.pdf
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Descrizione: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in B. Platier, R. Limpens, A. C. Lassise, T. T. J. Oosterholt, M. A. W. van Ninhuijs, K. A. Daamen, T. J. A. Staps, M. Zangrando, O. J. Luiten, W. L. IJzerman, J. Beckers; Magnetic field-enhanced beam monitor for ionizing radiation. Rev. Sci. Instrum. 1 June 2020; 91 (6): 063503. and may be found at https://doi.org/10.1063/5.0007092
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platier2020.pdf
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Descrizione: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in B. Platier, R. Limpens, A. C. Lassise, T. T. J. Oosterholt, M. A. W. van Ninhuijs, K. A. Daamen, T. J. A. Staps, M. Zangrando, O. J. Luiten, W. L. IJzerman, J. Beckers; Magnetic field-enhanced beam monitor for ionizing radiation. Rev. Sci. Instrum. 1 June 2020; 91 (6): 063503. and may be found at https://doi.org/10.1063/5.0007092
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