Magnetic quadrupoles lens for hot spot proton imaging in inertial confinement fusion

Jiang, Teng; Gu, Yuqiu; Chen, Jie; Zhu, Bin; Zhang, B.; Zhang, T.K.; Tan, Fuli; Wang, Hong; Zhang, B.H.; Wang, X.Q.

doi:10.1016/j.nima.2016.03.114

Cited by 4 publications

(5 citation statements)

References 20 publications

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“…The energy spectrum of laser-driven proton beams, however, is typically very broad in spectrum (tens of MeV), and divergent in transverse profile 2 , 3 . For this reason, many applications require processing of the proton beam 18 – 21 to either modify the spatial profile (collimation and focusing) or their energy spectrum (narrow energy selection). In Ref.…”

Section: Introductionmentioning

confidence: 99%

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A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2021

Sci Rep

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We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate. The protons are generated with an ultrashort-pulse laser interacting with a solid target and converted to a pencil-like narrow-band beam using a compact magnet-based energy selector. We experimentally demonstrate the production of a proton beam with an energy of 500 keV and energy spread well below 10$$\% $$ % , and a pulse duration of 260 ps. The energy loss of this beam is measured in a 2 $$\upmu $$ μ m thick solid Mylar target and found to be in good agreement with the theoretical predictions. The short time duration of the proton pulse makes it particularly well suited for applications involving the probing of highly transient plasma states produced in laser-matter interaction experiments. This proton source is particularly relevant for measurements of the proton stopping power in high energy density plasmas and warm dense matter.

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Section: Introductionmentioning

confidence: 99%

“…In Ref. 18 they propose the use of quadrupole lens to focus the proton beam for imaging purposes while in Ref. 19 pulsed solenoids are used to perform effective focusing.…”

Section: Introductionmentioning

confidence: 99%

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2021

Sci Rep

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show abstract

“…In these cases the generation of proton beams via laser-matter interaction needs to be complemented with a secondary system for the energy selection and beam transport of such proton sources. Several methods have been developed to select specific ion energies and to transport the beam [18][19][20][21][22] . Here we report a novel design for such a proton energy selector and its experimental characterization performed at the Centro de Laseres Pulsados (CLPU) VEGA 2 laser facility 23 .…”

Section: Introductionmentioning

confidence: 99%

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

Apiñaniz

Malko

Fedosejevs

et al. 2020

Preprint

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We report on the development of a highly directional, narrow energy band, short time duration proton beam operating at high repetition rate, suitable for measurements of stopping power in high energy density plasmas as well as other applications. The protons are generated with an ultrashort-pulse laser interacting with a solid target and converted to a pencil-like narrow-band beam using a compact magnet-based energy selector. We experimentally demonstrate the production of a proton beam with an energy of 500 keV and energy spread well below 10%, and a pulse duration of 260 ps. The energy loss of this beam is measured in a 2 µm thick solid Mylar target and found to be in within 1% of theoretical predictions. The short time duration of the proton pulse makes it particularly well suited for applications involving the probing of highly transient plasma states produced in laser-matter interaction experiments, in particular measurements of proton stopping power.

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“…After a proper collection and focusing system, muons are boosted by another laser wakefield, the 'Booster'. produced in the Generator could be collected and focused to adapt the bubble's size before injecting into the Booster by the plasma lens [24,25] or magnetic quadrupoles lens [26] . The time synchronization between Generator and Booster is also guaranteed in such an all-optical system.…”

Section: Introductionmentioning

confidence: 99%

“…In the scheme, the Generator would produce a muon bunch with short pulse duration, small source emittance and continuous energy distribution [14] . In principle, muons produced in the Generator could be collected and focused to adapt the bubble’s size before injecting into the Booster by the plasma lens [24, 25] or magnetic quadrupoles lens [26] . The time synchronization between Generator and Booster is also guaranteed in such an all-optical system.…”

Section: Introductionmentioning

confidence: 99%

All-optical acceleration in the laser wakefield

Zhang

Deng

Shan

et al. 2018

High Pow Laser Sci Eng

Self Cite

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Muons produced by the Bethe–Heitler process from laser wakefield accelerated electrons interacting with high $Z$ materials have velocities close to the laser wakefield. It is possible to accelerate those muons with laser wakefield directly. Therefore for the first time we propose an all-optical ‘Generator and Booster’ scheme to accelerate the produced muons by another laser wakefield to supply a prompt, compact, low cost and controllable muon source in laser laboratories. The trapping and acceleration of muons are analyzed by one-dimensional analytic model and verified by two-dimensional particle-in-cell (PIC) simulation. It is shown that muons can be trapped in a broad energy range and accelerated to higher energy than that of electrons for longer dephasing length. We further extrapolate the dependence of the maximum acceleration energy of muons with the laser wakefield relativistic factor $\unicode[STIX]{x1D6FE}$ and the relevant initial energy $E_{0}$. It is shown that a maximum energy up to 15.2 GeV is promising with $\unicode[STIX]{x1D6FE}=46$ and $E_{0}=1.45~\text{GeV}$ on the existing short pulse laser facilities.

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Magnetic quadrupoles lens for hot spot proton imaging in inertial confinement fusion

Cited by 4 publications

References 20 publications

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

A quasi-monoenergetic short time duration compact proton source for probing high energy density states of matter

All-optical acceleration in the laser wakefield

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