Bremsstrahlung hard x-ray source driven by an electron beam from a self-modulated laser wakefield accelerator

Lemos, N.; Albert, F.; Shaw, Jessica; Papp, D.; Polanek, R.; King, Paul M.; Milder, A. L.; Marsh, K. A.; Pak, A.; Pollock, B.; Hegelich, B. M.; Moody, J D; Park, J; Tommasini, R.; Williams, G. J.; Chen, Hui; Joshi, C.

doi:10.1088/1361-6587/aab3b5

Cited by 42 publications

(40 citation statements)

References 44 publications

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“…If the electron comes to a total stop, it transfers all its energy into the photon, therefore the maximum energy of the Gamma-ray beam matches the maximum energy of the electron beam. This configuration has been shown to work operating in the blowout LWFA regime [17] and in the self-modulated LWFA regime where it benefits from the almost one order of magnitude increased electron beam charge generating a larger number gamma photons [51]. It was found experimentally on the Vulcan facility, operating at 5 × 10 19 W/cm 2 , that the interaction of the laser pulse with a gas jet in front of a tantalum foil enhances the on-axis dose by a factor 5 with respect to interaction on a solid target and produces a gamma-ray lobe directed on-axis with a reduced angular spread [52].…”

Section: Alternative Plasma-based Gamma Ray Sourcesmentioning

confidence: 99%

Snowmass 2021 Accelerator Frontier White Paper: Near Term Applications driven by Advanced Accelerator Concepts

Emma¹,

Tilborg²,

Albert³

et al. 2022

Preprint

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While the long-term vision of the advanced accelerator community is aimed at addressing the challenges of future collider technology, it is critical that the community takes advantage of the opportunity to make large societal impact through its near-term applications. In turn, enabling robust applications strengthens the quality, control, and reliability of the underlying accelerator infrastructure. The white paper contributions that are solicited here will summarize the near-term applications ideas presented by the advanced accelerator community, assessing their potential impact, discussing scientific and technical readiness of concepts, and providing a timeline for implementation.

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Section: Alternative Plasma-based Gamma Ray Sourcesmentioning

confidence: 99%

Snowmass 2021 Accelerator Frontier White Paper: Near Term Applications driven by Advanced Accelerator Concepts

Emma¹,

Tilborg²,

Albert³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…There are also some efforts in improving beam charge by increasing laser energy and using high-Z gas [23][24][25][26], but they still do not break through the limitation of beam loading effect. While self-modulated laser wakefield acceleration (SM-LWFA) [27][28][29][30] that long laser pulse overlaps with several tens of plasma waves, large number of electrons can be trapped and accelerated in every wakefield and the beam charge can be increased tremendously to tens of nC [31,32], but it requires a hundred joule class picosecond (ps) laser facility. Moreover, directional electron beams with tens of nC charge have also been produced via vacuum laser acceleration with a plasma mirror injector [33,34].…”

Section: Introductionmentioning

confidence: 99%

Laser plasma accelerated ultra-intense electron beam for efficiently exciting nuclear isomers

Feng¹,

Li²,

Tan³

et al. 2022

Preprint

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Utilizing laser plasma wakefield to accelerate ultra-high charge electron beam is critical for many pioneering applications, for example to efficiently produce nuclear isomers with short lifetimes which may be widely used. However, because of the beam loading effect, electron charge in a single plasma bubble is limited in level of hundreds picocoulomb. Here, we experimentally present that a hundred kilo-ampere, twenty nanocoulomb, tens of MeV collimated electron beam is produced from a chain of wakefield acceleration, via a tightly focused intense laser pulse transversely matched in dense plasma. This ultra-intense electron beam ascribes to a novel efficient injection that the nitrogen atom inner shell electrons are ionized and continuously injected into multiple plasma bubbles. This intense electron beam has been utilized to exciting nuclear isomers with an ultra-high peak efficiency of 1.76 × 10 15 particles/s via photonuclear reactions. This efficient production method of isomers can be widely used for pumping isotopes with excited state lifetimes down to picosecond, which is benefit for deep understanding nuclear transition mechanisms and stimulating gamma-ray lasers.

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“…Today however, bright electron beams with GeV energies can be produced over a few centimetres by laser wakefield acceleration (LWFA) [5,6]. These electron beams can be used to produce brilliant γ ray beams by bremsstrahlung [7,8,9,10] and inverse Compton scattering [11,12,13]. Colliding such brilliant γ ray photons with a suitable x-ray photon field could be a viable route to study two-photon physics in the laboratory for the first time [14,15].…”

Section: Introductionmentioning

confidence: 99%

A laser-plasma platform for photon-photon physics

Kettle,

Hollatz,

Gerstmayr

et al. 2021

Preprint

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We describe a laser-plasma platform for photon-photon collision experiments to measure fundamental quantum electrodynamic processes such as the linear Breit-Wheeler process with real photons. The platform has been developed using the Gemini laser facility at the Rutherford Appleton Laboratory. A laser wakefield accelerator and a bremsstrahlung convertor are used to generate a collimated beam of photons with energies of hundreds of MeV, that collide with keV x-ray photons generated by a laser heated plasma target. To detect the pairs generated by the photonphoton collisions, a magnetic transport system has been developed which directs the pairs onto scintillation-based and hybrid silicon pixel single particle detectors.

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Bremsstrahlung hard x-ray source driven by an electron beam from a self-modulated laser wakefield accelerator

Cited by 42 publications

References 44 publications

Snowmass 2021 Accelerator Frontier White Paper: Near Term Applications driven by Advanced Accelerator Concepts

Snowmass 2021 Accelerator Frontier White Paper: Near Term Applications driven by Advanced Accelerator Concepts

Laser plasma accelerated ultra-intense electron beam for efficiently exciting nuclear isomers

A laser-plasma platform for photon-photon physics

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