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Title: Intense gamma-ray source based on focused electron beams from a laser wakefield accelerator

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/5.0095576· OSTI ID:1979100

Laser wakefield accelerators generate ultrashort electron bunches with the capability to produce γ-rays. Here, we produce focused laser wakefield acceleration electron beams using three quadrupole magnets. Electron beams are then focused into a 3 mm lead converter to generate intense, focused bremsstrahlung γ beams. Experimental results demonstrate the generation and propagation of focused γ beams to a best focus spot size of 2.3 ± 0.1 × 2.7 ± 0.2 mm2 using a copper stack calorimeter. Monte Carlo simulations conducted using GEANT4 are in good agreement with experimental results and enable detailed examination of γ-ray generation. Simulations indicate that the focused γ beams contained 2.6 × 109 photons in the range of 100 keV to 33 MeV with an average energy of 6.4 MeV. A γ-ray intensity of 7 × 1010 W/cm2 was estimated from simulations. In conclusion, the generation of focused bremsstrahlung γ-ray sources can have important applications in medical imaging applications and laboratory astrophysics experiments.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC); Natural Sciences and Engineering Research Council of Canada (NSERC); National Science Foundation (NSF); Engineering and Physical Sciences Research Council (EPSRC)
Grant/Contract Number:
SC0022109; RGPIN-2021-04373; 2108075; EP/N027175/1; EP/N022696/1; DESC0022109
OSTI ID:
1979100
Alternate ID(s):
OSTI ID: 1874517
Journal Information:
Applied Physics Letters, Vol. 120, Issue 26; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (64)

Highly efficient laser-driven Compton gamma-ray source journal January 2019
A bremsstrahlung gamma-ray source based on stable ionization injection of electrons into a laser wakefield accelerator
  • Döpp, A.; Guillaume, E.; Thaury, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 830 https://doi.org/10.1016/j.nima.2016.01.086
journal September 2016
High-Resolution γ -Ray Radiography Produced by a Laser-Plasma Driven Electron Source journal January 2005
Parametric study of high-energy ring-shaped electron beams from a laser wakefield accelerator journal January 2022
Low Emittance, High Brilliance Relativistic Electron Beams from a Laser-Plasma Accelerator journal November 2010
The Compton backscattering process and radiotherapy journal March 1997
High-Flux Femtosecond X-Ray Emission from Controlled Generation of Annular Electron Beams in a Laser Wakefield Accelerator journal August 2016
Response functions of imaging plates to photons, electrons and 4 He particles journal October 2013
Active Plasma Lensing for Relativistic Laser-Plasma-Accelerated Electron Beams journal October 2015
Intense γ -Ray Source in the Giant-Dipole-Resonance Range Driven by 10-TW Laser Pulses journal September 2008
A laser–plasma accelerator producing monoenergetic electron beams journal September 2004
An ultrashort pulse ultra-violet radiation undulator source driven by a laser plasma wakefield accelerator journal June 2014
Study of photo-proton reactions driven by bremsstrahlung radiation of high-intensity laser generated electrons journal April 2008
Laser-Wakefield Electron Beams as Drivers of High-Quality Positron Beams and Inverse-Compton-Scattered Photon Beams journal April 2019
Petawatt Laser Guiding and Electron Beam Acceleration to 8 GeV in a Laser-Heated Capillary Discharge Waveguide journal February 2019
Analytic representation of bremsstrahlung spectra from thick radiators as a function of photon energy and angle journal April 1989
On the problems of relativistic laboratory astrophysics and fundamental physics with super powerful lasers journal January 2015
Laser-driven soft-X-ray undulator source journal September 2009
Numerical evaluation of nuclide analysis of I129, Sr90, and Cs137 using bremsstrahlung high energy x ray generated by ultrashort pulse laser journal September 2006
Generation of neutral and high-density electron–positron pair plasmas in the laboratory journal April 2015
Enhanced Multi-MeV Photon Emission by a Laser-Driven Electron Beam in a Self-Generated Magnetic Field journal May 2016
Laue lens development for hard X-rays (>60 keV) journal February 2006
Production of medical radioisotopes with high specific activity in photonuclear reactions with γ-beams of high intensity and large brilliance journal October 2010
Laser Electron Accelerator journal July 1979
Development of control mechanisms for a laser wakefield accelerator-driven bremsstrahlung x-ray source for advanced radiographic imaging journal October 2020
Applications of laser wakefield accelerator-based light sources journal September 2016
Imaging laser-wakefield-accelerated electrons using miniature magnetic quadrupole lenses journal May 2011
Permanent Magnet-Based Quadrupoles for Plasma Acceleration Sources journal April 2019
Emittance Preservation in an Aberration-Free Active Plasma Lens journal November 2018
Monoenergetic beams of relativistic electrons from intense laser–plasma interactions journal September 2004
High quality electron beams from a laser wakefield accelerator journal November 2010
Extremely short relativistic-electron-bunch generation in the laser wakefield via novel bunch injection scheme journal December 2004
Ultrahigh Brilliance Multi-MeV γ -Ray Beams from Nonlinear Relativistic Thomson Scattering journal November 2014
Refractive Index of Silicon at γ Ray Energies journal May 2012
Positron and gamma-photon production and nuclear reactions in cascade processes initiated by a sub-terawatt femtosecond laser journal December 1997
Few femtosecond, few kiloampere electron bunch produced by a laser–plasma accelerator journal January 2011
Adjustable, short focal length permanent-magnet quadrupole based electron beam final focus system journal July 2005
Ultra-high intensity- 300-TW laser at 0.1 Hz repetition rate journal January 2008
Measurements of electron beam ring structures from laser wakefield accelerators journal May 2019
Ultrafast multi-MeV gamma-ray beam produced by laser-accelerated electrons journal September 2017
On an iterative method for the unfolding of spectra
  • Mülthei, H. N.; Schorr, B.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 257, Issue 2 https://doi.org/10.1016/0168-9002(87)90759-5
journal June 1987
Designing of active plasma lens for focusing laser-plasma-accelerated pulsed proton beams journal March 2021
Scaling the Yield of Laser-Driven Electron-Positron Jets to Laboratory Astrophysical Applications journal May 2015
Compact spectroscopy of keV to MeV X-rays from a laser wakefield accelerator journal July 2021
Production of a keV X-Ray Beam from Synchrotron Radiation in Relativistic Laser-Plasma Interaction journal September 2004
MeV-Energy X Rays from Inverse Compton Scattering with Laser-Wakefield Accelerated Electrons journal April 2013
Gamma-Ray Burst Phenomenology, Shock Dynamo, and the First Magnetic Fields journal December 2001
Gamma-ray beam produced by a plasma lens focused electron bunch journal February 2020
Photonuclear Fission from High Energy Electrons from Ultraintense Laser-Solid Interactions journal January 2000
Experimental Observation of a Current-Driven Instability in a Neutral Electron-Positron Beam journal November 2017
High-quality electron beams from a laser wakefield accelerator using plasma-channel guiding journal September 2004
Characterization of laser-driven single and double electron bunches with a permanent magnet quadrupole triplet and pepper-pot mask journal October 2014
Physics of laser-driven plasma-based electron accelerators journal August 2009
A tuneable ultra-compact high-power, ultra-short pulsed, bright gamma-ray source based on bremsstrahlung radiation from laser-plasma accelerated electrons journal March 2012
Geant4—a simulation toolkit
  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8
journal July 2003
Real-time observation of laser-driven electron acceleration journal March 2011
Bright spatially coherent synchrotron X-rays from a table-top source journal October 2010
Testing helicity-dependent γγγγ scattering in the region of MeV journal January 2016
Long‐Term Evolution of Magnetic Turbulence in Relativistic Collisionless Shocks: Electron‐Positron Plasmas journal February 2008
Laser-wakefield accelerators for high-resolution X-ray imaging of complex microstructures journal March 2019
Measurements of high-energy radiation generation from laser-wakefield accelerated electron beams journal May 2014
Bremsstrahlung hard x-ray source driven by an electron beam from a self-modulated laser wakefield accelerator journal March 2018
High-resolution μCT of a mouse embryo using a compact laser-driven X-ray betatron source journal June 2018
Electron acceleration from the breaking of relativistic plasma waves journal October 1995

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