Recent developments in the Thomson Parabola Spectrometer diagnostic for laser-driven multi-species ion sources

Alejo, A.; Gwynne, D.; Doria, D.; Ahmed, H.; Carroll, D. C.; Clarke, R. J.; Neely, D.; Scott, Graeme; Borghesi, M.; Kar, S.

doi:10.1088/1748-0221/11/10/c10005

Cited by 16 publications

(22 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strength of the TP's magnetic field was increased up to 0.12 T. A potential difference of 2.9 kV was applied across the 21.5 mm wide gap between the spectrometer electrical plates in order to reach a separation of the ion tracks on the spectrometer's detection system. The parabolic tracks on the image plane (within Cartesian coordinate system (x, y) and under nonrelativistic approximation) are described by the following equation [9]:…”

Section: Experimental Arrangement and Measurementmentioning

confidence: 99%

“…In such a way, one can read the intensity of pixels associated with the parabolic curve, and plot this intensity as a function of the horizontal position x with respect to the origin of the parabola (i.e., to the zero-deflection point). Then, the velocity of ions v was derived for every point of the parabola (i.e., for each pixel) from the general equation for magnetic deflection [9]:…”

Section: Processing Antenna Signals and Tp Snapshotsmentioning

confidence: 99%

See 1 more Smart Citation

Distortion of Thomson Parabolic-Like Proton Patterns Due to Electromagnetic Interference

et al. 2021

View full text Add to dashboard Cite

Intense electromagnetic pulses (EMPs) accompany the production of plasma when a high-intensity laser irradiates a solid target. The EMP occurs both during and long after the end of the laser pulse (up to hundreds of nanoseconds) within and outside the interaction chamber, and interferes with nearby electronics, which may lead to the disruption or malfunction of plasma diagnostic devices. This contribution reports a correlation between the frequency spectrum of the EMP and the distortion of Thomson parabola tracks of protons observed at the kJ-class PALS laser facility in Prague. EMP emission was recorded using a simple flat antenna. Ions accelerated from the front side of the target were simultaneously detected by a Thomson parabola ion spectrometer. The comparison of the two signals suggests that the EMP may be considered to be the source of parabolic track distortion.

show abstract

Section: Experimental Arrangement and Measurementmentioning

confidence: 99%

Section: Processing Antenna Signals and Tp Snapshotsmentioning

confidence: 99%

Distortion of Thomson Parabolic-Like Proton Patterns Due to Electromagnetic Interference

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Another diagnostic, based on collection of the escaping particles, employing both magnetic and electric fields to induce a deflection on their propagation, is called the Thompson parabola [43][44][45][46][47] . As schematically shown in Figure 9, this diagnostic consists of an entrance pinhole, parallel electric (E) and magnetic (B) fields and a detector.…”

Section: Thompson Parabolamentioning

confidence: 99%

Review on TNSA diagnostics and recent developments at SPARC_LAB

Bisesto

Galletti

Anania

et al. 2019

High Pow Laser Sci Eng

View full text Add to dashboard Cite

Interaction between high-intensity lasers with solid targets is the key process in a wide range of novel laser-based particle accelerator schemes, as well as electromagnetic radiation sources. Common to all the processes is the generation of femtosecond pulses of relativistic electrons emitted from the targets as forerunners of the later-time principal products of the interaction scheme. In this paper, some diagnostics employed in laser–solid matter interaction experiments related to electrons, protons, ions, electromagnetic pulses (EMPs) and X-rays are reviewed. Then, we present our experimental study regarding fast electrons and EMPs utilizing a femtosecond-resolution detector previously adopted only in accelerator facilities.

show abstract

“…There are many direct methods for registering ions, such as time-of-flight measurements with a microchannel plate detector (MPD), radiochromic film (RCF) 56 , CR-39 track detector 57 , and Thomson parabola 58 . However, those conventional methods fail for characterization of ion enery spectrum in cluster plasma, as they utilize measurements outsize of the interaction volume.…”

Section: Introductionmentioning

confidence: 99%

Ion energy spectra directly measured in the interaction volume of intense laser pulses with clustered plasma

Bochkarev

Faenov

Pikuz

et al. 2018

Sci Rep

View full text Add to dashboard Cite

The use of gas cluster media as a target for an intense femtosecond laser pulses is considered to be uniquely convenient approach for the development of a compact versatile pulsed source of ionizing radiation. Also, one may consider cluster media as a nanolab to investigate fundamental issues of intense optical fields interaction with sub-wavelength scale structures. However, conventional diagnostic methods fail to register highly charged ion states from a cluster plasma because of strong recombination in the ambient gas. In the paper we introduce high-resolution X-ray spectroscopy method allowing to study energy spectra of highly charged ions created in the area of most intense laser radiation. The emission of CO2 clusters were analyzed in experiments with 60 fs 780 nm laser pulses of 1018 W/cm2 intensity. Theory and according X-ray spectra modeling allows to reveal the energy spectra and yield of highly charged oxygen ions. It was found that while the laser of fundamental frequency creates commonly expected monotonic ion energy spectrum, frequency doubled laser radiation initiates energy spectra featuring of distinctive quasi-monoenergetic peaks. The later would provide definite advantage in further development of laser-plasma based compact ion accelerators.

show abstract

Recent developments in the Thomson Parabola Spectrometer diagnostic for laser-driven multi-species ion sources

Cited by 16 publications

References 54 publications

Distortion of Thomson Parabolic-Like Proton Patterns Due to Electromagnetic Interference

Distortion of Thomson Parabolic-Like Proton Patterns Due to Electromagnetic Interference

Review on TNSA diagnostics and recent developments at SPARC_LAB

Ion energy spectra directly measured in the interaction volume of intense laser pulses with clustered plasma

Contact Info

Product

Resources

About