Zobrazeno 1 - 10
of 22
pro vyhledávání: '"B. M. Hegelich"'
Autor:
N. Lemos, P. M. King, D. Rusby, I. Pagano, M. Sinclair, K. A. Marsh, J. L. Shaw, A. L. Milder, A. Pak, B. B. Pollock, M. Aufderheide, F. V. Hartemann, S. Q. Wu, Y. Hwang, B. M. Hegelich, J. Moody, P. Michel, C. Joshi, F. Albert
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p L032022 (2024)
An ultrabroad-band x-ray source, with photon energies from 10 keV to >1 MeV, based on a picosecond laser-driven plasma accelerator, is characterized and used to radiograph high-energy-density-science relevant targets. The measured yield of 10^{12} ph
Externí odkaz:
https://doaj.org/article/71ecc14130d94e7088bd8b34b41663a9
Autor:
X. Jiao, C. B. Curry, M. Gauthier, H.-G. J. Chou, F. Fiuza, J. B. Kim, D. D. Phan, E. McCary, E. C. Galtier, G. M. Dyer, B. K. Ofori-Okai, L. Labun, O. Z. Labun, C. Schoenwaelder, R. Roycroft, G. Tiwari, G. D. Glenn, F. Treffert, S. H. Glenzer, B. M. Hegelich
Publikováno v:
Frontiers in Physics, Vol 10 (2023)
A compact high-flux, short-pulse neutron source would have applications from nuclear astrophysics to cancer therapy. Laser-driven neutron sources can achieve fluxes much higher than spallation and reactor neutron sources by reducing the volume and ti
Externí odkaz:
https://doaj.org/article/be53a335c80e45299d8b1ed4606873ad
Autor:
R. Roycroft, P. A. Bradley, E. McCary, B. Bowers, H. Smith, G. M. Dyer, B. J. Albright, S. Blouin, P. Hakel, H. J. Quevedo, E. L. Vold, L. Yin, B. M. Hegelich
Publikováno v:
Matter and Radiation at Extremes, Vol 6, Iss 1, Pp 014403-014403-10 (2021)
An experimental and simulation study of warm dense carbon foams at ambient density (ne ∼ 1021 cm−3) is presented. This study of isochorically heated foams is motivated by their potential application in carbon-atmosphere white-dwarf envelopes, whe
Externí odkaz:
https://doaj.org/article/aa613d8d5aff4366b2634599e71c2320
Streaked optical pyrometer for proton-driven isochoric heating experiments of solid and foam targets
Autor:
R. Roycroft, B. Bowers, H. Smith, E. McCary, F. Aymond, G. M. Dyer, H. J. Quevedo, P. A. Bradley, E. L. Vold, L. Yin, B. M. Hegelich
Publikováno v:
AIP Advances, Vol 10, Iss 4, Pp 045220-045220-10 (2020)
We have designed, built, and calibrated an ultrafast streaked optical pyrometer (SOP) with ∼5 ps resolution for measuring the time-resolved surface blackbody temperature of an isochorically heated plasma. The pyrometer is calibrated to measure temp
Externí odkaz:
https://doaj.org/article/37aebc3f08494202aacf9d2c18568c30
Autor:
P. M. King, K. Miller, N. Lemos, J. L. Shaw, B. F. Kraus, M. Thibodeau, B. M. Hegelich, J. Hinojosa, P. Michel, C. Joshi, K. A. Marsh, W. Mori, A. Pak, A. G. R. Thomas, F. Albert
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 1, p 011302 (2021)
The two-temperature relativistic electron spectrum from a low-density (3×10^{17} cm^{-3}) self-modulated laser wakefield accelerator (SM-LWFA) is observed to transition between temperatures of 19±0.65 and 46±2.45 MeV at an electron energy of about
Externí odkaz:
https://doaj.org/article/a07e62479e844a52b4d14455cd78edc8
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 7, p 070702 (2011)
A new way to generate intense attosecond x-ray pulses is discussed. It relies on coherent Thomson scattering (CTS) from relativistic electron sheets. A double layer technique is used to generate planar solid-density sheets of monochromatic high-γ el
Externí odkaz:
https://doaj.org/article/3ab8f894c9ec48fcbd2a91fe570b7ac8
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 14, Iss 3, p 031301 (2011)
Mid-Z ion driven fast ignition inertial fusion requires ion beams of hundreds of MeV energy and
Externí odkaz:
https://doaj.org/article/7b27bf3ee5034407a36545702bc71cc4
Publikováno v:
Laser and Particle Beams.
Short-pulse, ultra high-intensity lasers have opened new regimes for studying fusion plasmas and creating novel ultra-short ion beams and neutron sources. Diagnosing the plasma in these experiments is important for optimizing the fusion yield but dif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbd4e91dd1ca2e7295c02f772b35dd49
Publikováno v:
Physical Review
A model detector undergoing constant, infinite-duration acceleration converges to an equilibrium state described by the Hawking-Unruh temperature $T_a=(a/2\pi)(\hbar/c)$. To relate this prediction to experimental observables, a point-like charged par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67746c81b1610bda9be688fc2fea4e7a
Autor:
T M, Ostermayr, C, Kreuzer, F S, Englbrecht, J, Gebhard, J, Hartmann, A, Huebl, D, Haffa, P, Hilz, K, Parodi, J, Wenz, M E, Donovan, G, Dyer, E, Gaul, J, Gordon, M, Martinez, E, Mccary, M, Spinks, G, Tiwari, B M, Hegelich, J, Schreiber
Publikováno v:
Nat Commun
Radiographic imaging with x-rays and protons is an omnipresent tool in basic research and applications in industry, material science and medical diagnostics. The information contained in both modalities can often be valuable in principle, but difficu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c69857c6f9f03d4acfa6d4ff51b97ba0
https://pubmed.ncbi.nlm.nih.gov/33268784
https://pubmed.ncbi.nlm.nih.gov/33268784