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Title: Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/5.0124539· OSTI ID:1962481
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  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  2. Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
  3. Florida A & M University, Tallahassee, FL (United States)
  4. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Georgia Institute of Technology, Atlanta, GA (United States)
  5. General Atomics, San Diego, CA (United States)
  6. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Material Physics Group, AWE Plc, Reading (United Kingdom)

Compound parabolic concentrator (CPC) targets are utilized at the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser to enhance the acceleration of electrons and production of high energy photons, for laser durations of 10 ps and energies up to 2.4 kJ. A large enhancement of mean electron energy (>2 ×) and photon brightness (>10×) is found with CPC targets compared to flat targets. Using multiple diagnostic techniques at different spatial locations and scaling by gold activation spatial data, photon spectra are characterized for Ephoton = 0.5-30 MeV. Beam width and pointing variations are given. The efficient production of MeV photons at Ilaser ≈ 2 x 1018 W/cm2 with CPCs is observed, with doses of >10 rad in air at 1 m for Ephoton > 0.5 MeV; these exceed those previously reported with laser-driven sources. Using this source, sub-mm resolution radiographs are generated through large areal density radiograph objects. Hence these results are promising for the development of bright MeV x-ray and particle sources on Petawatt class laser systems.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC52-07NA27344; NA0001808; 19-SI-002
OSTI ID:
1962481
Alternate ID(s):
OSTI ID: 1907715
Report Number(s):
LLNL-JRNL-839566; 1059651; TRN: US2313080
Journal Information:
Physics of Plasmas, Vol. 30, Issue 1; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (46)

High-Resolution γ -Ray Radiography Produced by a Laser-Plasma Driven Electron Source journal January 2005
High energy electrons, nuclear phenomena and heating in petawatt laser-solid experiments journal October 1999
Radiological characterisation of photon radiation from ultra-high-intensity laser–plasma and nuclear interactions journal August 2006
Order-of-magnitude increase in laser-target coupling at near-relativistic intensities using compound parabolic concentrators journal March 2021
Plasma expansion and relativistic filamentation in intense laser-irradiated cone targets journal November 2021
Bremsstrahlung spectrum and photon dose from short-pulse high-intensity laser interaction on various metal targets journal November 2019
High-current laser-driven beams of relativistic electrons for high energy density research journal October 2020
Particle acceleration in relativistic laser channels journal July 1999
Increased efficiency of short-pulse laser-generated proton beams from novel flat-top cone targets journal May 2008
Production of relativistic electrons at subrelativistic laser intensities journal March 2020
Molière's Theory of Multiple Scattering journal March 1953
Photon dose produced by a high-intensity laser on a solid target journal July 2014
Hard x-ray production from high intensity laser solid interactions (invited) journal January 1999
Review of progress in Fast Ignition journal May 2005
Energetic proton generation in ultra-intense laser–solid interactions journal February 2001
High performance compact magnetic spectrometers for energetic ion and electron measurement in ultraintense short pulse laser solid interactions journal October 2008
Scaling the Yield of Laser-Driven Electron-Positron Jets to Laboratory Astrophysical Applications journal May 2015
High-resolution multi-MeV x-ray radiography using relativistic laser-solid interaction journal February 2011
Characterisation of a MeV Bremsstrahlung x-ray source produced from a high intensity laser for high areal density object radiography journal August 2013
Fast heating of ultrahigh-density plasma as a step towards laser fusion ignition journal August 2001
Beyond the ponderomotive limit: Direct laser acceleration of relativistic electrons in sub-critical plasmas journal April 2016
High-energy differential-filtering photon spectrometer for ultraintense laser-matter interactions journal October 2018
Increased laser-accelerated proton energies via direct laser-light-pressure acceleration of electrons in microcone targets journal May 2011
MeV bremsstrahlung X rays from intense laser interaction with solid foils journal December 2018
Development of x-ray radiography for high energy density physics journal October 2014
Multi-pulse time resolved gamma ray spectroscopy of the advanced radiographic capability using gas Cherenkov diagnostics journal March 2021
Direct electron acceleration in multi-kilojoule, multi-picosecond laser pulses journal October 2020
Dilation x-ray imager a new/faster gated x-ray imager for the NIF journal October 2012
Theoretical Understanding of Enhanced Proton Energies from Laser-Cone Interactions conference January 2010
Limitation on Prepulse Level for Cone-Guided Fast-Ignition Inertial Confinement Fusion journal February 2010
Inhibition of fast electron energy deposition due to preplasma filling of cone-attached targets journal January 2008
Surface-Magnetic-Field and Fast-Electron Current-Layer Formation by Ultraintense Laser Irradiation journal December 2004
Laser light and hot electron micro focusing using a conical target journal June 2004
Absorption of ultra-intense laser pulses journal August 1992
Scaling of laser-driven electron and proton acceleration as a function of laser pulse duration, energy, and intensity in the multi-picosecond regime journal January 2021
Characterization of 7Li(p,n)7Be neutron yields from laser produced ion beams for fast neutron radiography journal July 2004
The commissioning of the advanced radiographic capability laser system: experimental and modeling results at the main laser output conference February 2015
Enhancements in laser-generated hot-electron production via focusing cone targets at short pulse and high contrast journal May 2021
Effect of plasma density scale length on the properties of bremsstrahlung x-ray sources created by picosecond laser pulses journal January 2009
Enhancement of high energy X-ray radiography using compound parabolic concentrator targets journal March 2022
Injection laser system for Advanced Radiographic Capability using chirped pulse amplification on the National Ignition Facility journal January 2019
Spatio-temporal focal spot characterization and modeling of the NIF ARC kilojoule picosecond laser journal January 2021
Beam and target alignment at the National Ignition Facility using the Target Alignment Sensor (TAS) conference October 2012
Enhanced laser–plasma interactions using non-imaging optical concentrator targets journal January 2020
Effect of plasma hydrodynamics on laser-produced bremsstrahlung MeV photon dose journal November 2020
Nuclear diagnostics for petawatt experiments (invited) journal January 2001