Resonant photonuclear isotope detection using medium-energy photon beam

Ejiri, H.; Shima, T.

doi:10.1103/physrevstab.15.024701

Cited by 8 publications

(8 citation statements)

References 10 publications

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“…They are complementary to RI productions by photon and neutron capture reactions. The production rate per one µ is as high as 0.5 − 0.1, which is 2 orders of magnitude larger than those for photon capture reactions [1,21].…”

Section: Remarksmentioning

confidence: 78%

“…The intensity of the RIs amount to the order of 100 GBq level if one uses muons of the order of 10 10 per second. MuCIP is very promising future for applications in pure and applied science as part of muon capture isotope detection(MuCID) [21]. Since one may use rather thin targets in the order of a few 10 mg/cm 2 to stop low-momentum muons, the RI density with 10 9 muons per sec per 10 cm 2 will be around 10 GBq/gr.…”

Section: Remarksmentioning

confidence: 99%

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Nuclear isotope production by ordinary muon capture reaction

Hashim

Ejiri

Othman

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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Muon capture isotope production (MuCIP) using negative ordinary muon (µ) capture reactions (OMC) is used to efficiently produce various kinds of nuclear isotopes for both fundamental and applied science studies. The large capture probability of µ into a nucleus, together with the high intensity µ beam, make it possible to produce nuclear isotopes in the order of 10 9−10 per second depending on the muon beam intensity. Radioactive isotopes (RIs) produced by MuCIP are complementary to those produced by photon and neutron capture reactions and are used for various science and technology applications. MuCIP on Nat Mo by using the RCNP MuSIC µ beam is presented to demonstrate the feasibility of MuCIP. Nuclear isotopes produced by MuCIP are evaluated by using a pre-equilibrium (PEQ) and equilibrium (EQ) proton neutron emission model. Radioactive 99 Mo isotopes and the metastable 99m Tc isotopes, which are used extensively in medical science, are produced by MuCIP on Nat Mo and $

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Section: Remarksmentioning

confidence: 78%

Section: Remarksmentioning

confidence: 99%

Nuclear isotope production by ordinary muon capture reaction

Hashim

Ejiri

Othman

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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“…Normally, photo-transmutation can take advantage of the resonant cross-section integrated over the whole region of GDR, which can be approximated as 0.25A fm 2 with A being the mass number. 30 Furthermore, the GDR has a relatively board width (~ 5 MeV) for each individual isotope. As a result it is not needed to narrow the generated bremsstrahlung spectra.…”

Section: Introductionmentioning

confidence: 99%

Transmutation prospect of long-lived nuclear waste induced by high-charge electron beam from laser plasma accelerator

Wang

Luo

et al. 2017

Physics of Plasmas

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Photo-transmutation of long-lived nuclear waste induced by high-charge relativistic electron beam (e-beam) from laser plasma accelerator is demonstrated. Collimated relativistic e-beam with a high charge of approximately 100 nC is produced from high-intensity laser interaction with near-critical-density (NCD) plasma. Such e-beam impinges on a high-Z convertor and then radiates energetic bremsstrahlung photons with flux approaching 10 11 per laser shot. Taking long-lived radionuclide 126 Sn as an example, the resulting transmutation reaction yield is the order of 10 9 per laser shot, which is two orders of magnitude higher than obtained from previous studies.It is found that at lower densities, tightly focused laser irradiating relatively longer NCD plasmas can effectively enhance the transmutation efficiency. Furthermore, the photo-transmutation is generalized by considering mixed-nuclide waste samples, which suggests that the laser-accelerated high-charge e-beam could be an efficient tool to transmute long-lived nuclear waste.

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“…We then propose a self-synchronized and all-optical setup to generate multiple gamma-ray sources by invoking the RR in a single laser pulse. This provides an impact to the photonuclear experiments which required a bright and collimated gamma-ray source with energies in the range between 10 -30 MeV [17][18][19].…”

mentioning

confidence: 99%

“…In future work, we plan to study the generation of gamma-rays by using this setup. The efficient gamma source is of great interest for photonuclear isotope transmutation, nondestructive high-sensitivity detection of nuclear isotopes as well as the experiment of Production and Photoexcitation (PPEx) of isomers at Extreme Light Infrastructure (ELI-NP) [17][18][19].…”

mentioning

confidence: 99%

The suppression of radiation reaction and laser field depletion in laser-electron beam interaction

2018

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The laser field depletion in laser-electron beam collision is generally small. However, a properly chosen parameter of the laser and electron, the laser field depletion can be optimized. To access the laser energy evolution, simulations of laser-electron beam collision by Particle-in-Cell (PIC) simulation is performed. In this paper, the laser and electron parameters are chosen such that the ponderomotive force is compensated by the radiation reaction force in the head-on collision configuration. Then, the relativistic electron beam can quiver in the laser pulse for a longer time to increase the energies conversion. The optimum of laser field energy depletion is observed at γ0 = a0 ∼ 400 and limited beyond this point due to the impenetrability threshold. The total energy conversion from laser and electron beam into radiation emission is optimum at γ0 = a0 ∼ 250. This conversion efficiency can be up to several percent for an electron bunch with charges of a few nC. This efficient gamma-ray sources may provide some useful application in photonuclear experiments.

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Resonant photonuclear isotope detection using medium-energy photon beam

Cited by 8 publications

References 10 publications

Nuclear isotope production by ordinary muon capture reaction

Nuclear isotope production by ordinary muon capture reaction

Transmutation prospect of long-lived nuclear waste induced by high-charge electron beam from laser plasma accelerator

The suppression of radiation reaction and laser field depletion in laser-electron beam interaction

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