Modified Thomson parabola ion spectrometer of wide dynamic range

Shimizu, Shuji; Mochizuki, Takayasu; Yamanaka, T.; Yamanaka, C.

doi:10.1063/1.1136073

Cited by 27 publications

(5 citation statements)

References 4 publications

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“…A schematic of the device is shown in Fig.10 a). Ions are deflected by parallel E and B fields (with E ∼ 10 4 V/m (Sakabe et al, 1980)) resulting in a characteristic deflection pattern in which species with different charge/mass ratio form separated parabolic traces in the detector plane, as shown in the typical image of Fig.10 b). Modified magnetic and Thomson spectrometers, having imaging and angular resolution capability, have been also developed (Chen et al, 2010;Jung et al, 2011a;Ter-Avetisyan et al, 2009).…”

Section: E Ion Diagnosticsmentioning

confidence: 99%

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Ion acceleration by superintense laser-plasma interaction

2013

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Ion acceleration driven by superintense laser pulses is attracting an impressive and steadily increasing\ud effort. Motivations can be found in the applicative potential and in the perspective to investigate novel regimes as available laser intensitieswill be increasing. Experiments have demonstrated, over a wide range\ud of laser and target parameters, the generation of multi-MeV proton and ion beams with unique properties\ud suchas ultrashort duration, high brilliance, and low emittance. An overview is given of the state of the art of\ud ion acceleration by laser pulses aswell as an outlook on its future development and perspectives.The main\ud features observed in the experiments, the observed scaling with laser and plasma parameters, and the main\ud models used both to interpret experimental data and to suggest new research directions are described

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Section: E Ion Diagnosticsmentioning

confidence: 99%

“…10 a). Ions are deflected by parallel E and B fields (with E ∼ 10 4 V/m (Sakabe et al, 1980)) resulting in a characteristic deflection pattern in which species with different charge/mass ratio form separated parabolic traces in the detector plane, as shown in the typical image of Fig. 10 b).…”

Section: E Ion Diagnosticsmentioning

confidence: 99%

Ion acceleration by superintense laser-plasma interaction

2013

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“…Charge-energy spectra can be obtained by employing, e.g. retarding-field Faraday cups (RFA) [181][182][183][184], electrostatic analyzers (ESA) [32,115,185], or Thomson parabola (TP) [98,186,187]. Each detector type has been used in the past to diagnose tin LPPs [32,98,183,185].…”

Section: Plasma Expansion: Ion Kinetic Energy Distributionsmentioning

confidence: 99%

Physics of laser-driven tin plasma sources of EUV radiation for nanolithography

Versolato

2019

Plasma Sources Sci. Technol.

132

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Laser-produced transient tin plasmas are the sources of extreme ultraviolet (EUV) light at 13.5 nm wavelength for next-generation nanolithography, enabling the continued miniaturization of the features on chips. Generating the required EUV light at sufficient power, reliability, and stability presents a formidable multi-faceted task, combining industrial innovations with attractive scientific questions. This topical review presents a contemporary overview of the status of the field, discussing the key processes that govern the dynamics in each step in the process of generating EUV light. Relevant physical processes span over a challenging six orders of magnitude in time scale, ranging from the (sub-)ps and ns time scales of laser-driven atomic plasma processes to the several μs required for the fluid dynamic tin target deformation that is set in motion by them.

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“…To characterize the accelerated ions, several diagnosis techniques have been developed such as the Thomson parabola (TP) system (Sakabe et al 1980, Harres et al 2008, the wide angle spectrometer (Jung et al 2011), the streak deflectometry (Sokollik et al 2008), and the multi-pinhole spectrometer (Ter-Avetisyan et al 2009). Among them, the TP systems have been widely used to characterize accelerated ions, because the TP can obtain the energy spectrum for each charge-to-mass ratio of the ions with a single laser shot with a combination of an online ion detector such as a micro-channel plate and a fluorescent screen.…”

Section: Introductionmentioning

confidence: 99%

The precise energy spectra measurement of laser-accelerated MeV/n-class high-Z ions and protons using CR-39 detectors

Kanasaki

Jinno

Sakaki

et al. 2016

Plasma Phys. Control. Fusion

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The diagnosis method, using a combination of a permanent magnet and CR-39 track detectors, has been developed to separately measure the energy spectrum of the laser-accelerated MeV/n-class high-Z ions and that of MeV protons. The main role of magnet is separating between high-Z ions and protons, not for the usual energy spectrometer, while ion energy was precisely determined from careful analysis of the etch pit shapes and the etch pit growth behaviors in the CR-39. The method was applied to laser-driven ion acceleration experiments using CO 2 clusters embedded in a background H 2 gas. Ion energy spectra with uncertainty ΔE = 0.1 MeV n −1 for protons and carbon/ oxygen ions were simultaneously obtained separately. The maximum energies of carbon/oxygen ions and protons were determined as 1.1 ± 0.1 MeV and 1.6 ± 0.1 MeV n −1 , respectively. The sharp decrease around 1 MeV n −1 observed in the energy spectrum of carbon/oxygen ions could be due to a trace of the ambipolar hydrodynamic expansion of CO 2 clusters. Thanks to the combination of the magnet and the CR-39, the method is robust against electromagnetic pulse (EMP).

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Modified Thomson parabola ion spectrometer of wide dynamic range

Abstract: A modified Thomson parabola ion spectrometer of a wide dynamic range for studies of flash ions emitted from laser produced plasmas was developed. The exact velocity distributions of different ion species were obtained separately with sufficient velocity resolution.

Cited by 27 publications

References 4 publications

Ion acceleration by superintense laser-plasma interaction

Ion acceleration by superintense laser-plasma interaction

Physics of laser-driven tin plasma sources of EUV radiation for nanolithography

The precise energy spectra measurement of laser-accelerated MeV/n-class high-Z ions and protons using CR-39 detectors

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