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Preliminary results on nuclear isomer production via laser-driven bremsstrahlung irradiation at ELI-NP-1PW

Giubega, G. ; Nakamiya, Y. ; D'Souza, F. LU ; Phung, V. L.J. ; Slabu, I. ; Iancu, V. ; Neagu, L. ; Ong, J. F. ; Dobre, M. and Balaceanu, A. , et al. (2025) In Nuclear Physics A 1062.
Abstract

In this contribution we present the preliminary results regarding laser-driven nuclear isomer-production obtained during the commissioning of 1 PW-E7 experimental area at ELI-NP. The study of nuclear isomers production and their photoreactions has been a subject of lasting interest in the nuclear physics community. Nuclear isomers play a crucial role in the creation of the elements in the Universe and in controlled nuclear energy release. The high-intensity and ultra-short pulsed lasers, available at ELI-NP facility, have a great advantage for studying isomeric states with life-times that are impractical to investigate by using conventional accelerator or nuclear reactor experiments. The 1 PW high-power laser was focused on 1 mm... (More)

In this contribution we present the preliminary results regarding laser-driven nuclear isomer-production obtained during the commissioning of 1 PW-E7 experimental area at ELI-NP. The study of nuclear isomers production and their photoreactions has been a subject of lasting interest in the nuclear physics community. Nuclear isomers play a crucial role in the creation of the elements in the Universe and in controlled nuclear energy release. The high-intensity and ultra-short pulsed lasers, available at ELI-NP facility, have a great advantage for studying isomeric states with life-times that are impractical to investigate by using conventional accelerator or nuclear reactor experiments. The 1 PW high-power laser was focused on 1 mm supersonic gas jet (mixture of 98% He-2% N2) at laser pulse energy on target of ELonT≈20 J in order to generate electron bunches via the Laser Wakefield Acceleration. Electrons with energies up to 500 MeV were obtained at laser intensity on target of 2-2.5x1020 W/cm2 and 10 bar backing pressure of 98% He-2% N2 gas jets. Intense bremsstrahlung radiation was further generated by impinging the laser-accelerated-electrons on a 10-mm-thick 181Ta photo-converter placed before the natural In target. Several indium isomers were produced using the laser-driven bremsstrahlung irradiation, e.g. 113mIn, 115mIn and 116mIn.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Laser wakefield acceleration, Laser-driven bremsstrahlung, Laser-driven nuclear isomer production
in
Nuclear Physics A
volume
1062
article number
123157
publisher
Elsevier
external identifiers
  • scopus:105004928790
ISSN
0375-9474
DOI
10.1016/j.nuclphysa.2025.123157
language
English
LU publication?
yes
id
f8f988d7-5f8d-4ce2-a8dd-3b26651037dc
date added to LUP
2025-07-18 10:12:09
date last changed
2025-07-18 10:13:07
@article{f8f988d7-5f8d-4ce2-a8dd-3b26651037dc,
  abstract     = {{<p>In this contribution we present the preliminary results regarding laser-driven nuclear isomer-production obtained during the commissioning of 1 PW-E7 experimental area at ELI-NP. The study of nuclear isomers production and their photoreactions has been a subject of lasting interest in the nuclear physics community. Nuclear isomers play a crucial role in the creation of the elements in the Universe and in controlled nuclear energy release. The high-intensity and ultra-short pulsed lasers, available at ELI-NP facility, have a great advantage for studying isomeric states with life-times that are impractical to investigate by using conventional accelerator or nuclear reactor experiments. The 1 PW high-power laser was focused on 1 mm supersonic gas jet (mixture of 98% He-2% N<sub>2</sub>) at laser pulse energy on target of E<sub>LonT</sub>≈20 J in order to generate electron bunches via the Laser Wakefield Acceleration. Electrons with energies up to 500 MeV were obtained at laser intensity on target of 2-2.5x10<sup>20</sup> W/cm<sup>2</sup> and 10 bar backing pressure of 98% He-2% N<sub>2</sub> gas jets. Intense bremsstrahlung radiation was further generated by impinging the laser-accelerated-electrons on a 10-mm-thick <sup>181</sup>Ta photo-converter placed before the natural In target. Several indium isomers were produced using the laser-driven bremsstrahlung irradiation, e.g. <sup>113m</sup>In, <sup>115m</sup>In and <sup>116m</sup>In.</p>}},
  author       = {{Giubega, G. and Nakamiya, Y. and D'Souza, F. and Phung, V. L.J. and Slabu, I. and Iancu, V. and Neagu, L. and Ong, J. F. and Dobre, M. and Balaceanu, A. and Vancea, C. and Tudor, L. and Cojocaru, G. and Norbaev, S. and Naziru, A. and Vasescu, L. and Toma, A. and Dumitru, A. and Berceanu, A. and Rosu, M. and Iancu, Violeta and Turturica, G. and Matei, C. and Baruta, S. and Tozar, T. and Marin, C. and Cucoanes, A. and Florea, N. and Dancus, I. and Tesileanu, O.}},
  issn         = {{0375-9474}},
  keywords     = {{Laser wakefield acceleration; Laser-driven bremsstrahlung; Laser-driven nuclear isomer production}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Nuclear Physics A}},
  title        = {{Preliminary results on nuclear isomer production via laser-driven bremsstrahlung irradiation at ELI-NP-1PW}},
  url          = {{http://dx.doi.org/10.1016/j.nuclphysa.2025.123157}},
  doi          = {{10.1016/j.nuclphysa.2025.123157}},
  volume       = {{1062}},
  year         = {{2025}},
}