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Laser Acceleration Technology and Applications
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Laser Acceleration Technology and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (30 September 2019) | Viewed by 7434

Special Issue Editor

Dr. Gianluca Sarri

E-Mail Website
Guest Editor
Room 01.045, Physics Block 3, Main Site, Queen’s University Belfast, Belfast, UK
Interests: high-intensity laser plasma interactions with particular interest in acceleration of particles and generation of secondary photon sources; Particular attention devoted to applying these sources in healthcare and industry; alongside their use for fundamental physics studies; especially in high-field quantum electrodynamics and laboratory astrophysics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Laser-driven particle accelerators have experienced tremendous development over the last few years, with clear potential to soon become a compact alternative to more conventional radio-frequency based accelerators. The ability to sustain extremely high accelerating fields (easily exceeding the GV/m) allows for the acceleration of electrons up to GeV-like energies over only a few cm of plasma. Moreover, laser-driven accelerators have the unique capability of generating femtosecond-scale electron beams with source sizes in the micron range and divergences of the order of a mrad. These appealing characteristics are unveiling a whole new range of applications in healthcare, manufacturing, and fundamental science that would not be possible otherwise.

The present Special Issue will include articles reporting both concise reviews of recently obtained results and new findings produced in the area of laser-driven particle accelerators and their applications, either from an experimental or theoretical point of view. The topics are not limited strictly to laser-driven wakefield acceleration of electrons, but we will also consider other kinds of laser-driven particle accelerators, such as those from laser–solid interactions.

Dr. Gianluca Sarri
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wakefield
  • high-intensity lasers
  • electron beams
  • plasma physics
  • optics
  • particle acceleration

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Published Papers (2 papers)

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Research

17 pages, 6051 KiB  
Article
Displacement Measurement Method Based on the Rotating Paraboloid Array
by Zekui Lv, Zhikun Su, Dong Zhang, Zhiming Yang, Xiaohuan Yang, Xuan Wei, Jue Li, Fengzhou Fang, Haitao Zhang and Xinghua Li
Appl. Sci. 2019, 9(16), 3315; https://doi.org/10.3390/app9163315 - 13 Aug 2019
Cited by 2 | Viewed by 2654
Abstract
Using an optical freeform surface to realize the precision measurement of displacement has become a research focus in the present day. However, the measurement range of this method is limited by the size of the freeform surface processed. In order to overcome this [...] Read more.
Using an optical freeform surface to realize the precision measurement of displacement has become a research focus in the present day. However, the measurement range of this method is limited by the size of the freeform surface processed. In order to overcome this difficulty, this paper presents a two-dimensional displacement measurement system with a large range, which is composed of a slope sensor and a rotating paraboloid array. The slope sensor utilizes the optical structure of an autocollimator with minor optimization, and the rotating paraboloid array expands the measurement range of the system in a discrete manner. The experimental results showed that the optimized optical system enhanced the measurement accuracy to ±0.4 μm within the range of 1500 μm and the overall measurement error was approximately ±2 μm when measured within the range of 450 mm. The developed measurement system has potential applicability for detection of errors, such as the position error and straightness error of multi-axis systems. Full article
(This article belongs to the Special Issue Laser Acceleration Technology and Applications)
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17 pages, 5996 KiB  
Article
Advances in Spectral Distribution Assessment of Laser Accelerated Protons using Multilayer CR-39 Detectors
by Andreea Groza, Mihai Serbanescu, Bogdan Butoi, Elena Stancu, Mihai Straticiuc, Ion Burducea, Adriana Balan, Alecsandru Chirosca, Bogdan Mihalcea and Mihai Ganciu
Appl. Sci. 2019, 9(10), 2052; https://doi.org/10.3390/app9102052 - 18 May 2019
Cited by 8 | Viewed by 4488
Abstract
We show that a spectral distribution of laser-accelerated protons can be extracted by analyzing the proton track diameters observed on the front side of a second CR-39 detector arranged in a stack. The correspondence between the proton track diameter and the incident energy [...] Read more.
We show that a spectral distribution of laser-accelerated protons can be extracted by analyzing the proton track diameters observed on the front side of a second CR-39 detector arranged in a stack. The correspondence between the proton track diameter and the incident energy on the second detector is established by knowing that protons with energies only higher than 10.5 MeV can fully deposit their energy in the second CR-39 detector. The correlation between the laser-accelerated proton track diameters observed on the front side of the second CR-39 detector and the proton incident energy on the detector stack is also presented. By calculating the proton number stopped in the CR-39 stack, we find out that its dependence on the proton energy in the 1–15 MeV range presents some discontinuities at energies higher than 9 MeV. Thus, we build a calibration curve of the track diameter as a function of the proton incident energy within the 1–9 MeV range, and we infer the associated analytical function as the calculations performed indicate best results for proton spectra within the 1–9 MeV range. The calibration curve is used as a tool to ascertain the pits identified on the surfaces of both CR-39 detectors to proton tracks. The proton tracks spatial distribution analyzed by optical and atomic force microscopy is correlated with the peculiarity of the used targets. Full article
(This article belongs to the Special Issue Laser Acceleration Technology and Applications)
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