Cross section measurements of 155,157Gd(n,$\gamma$γ) induced by thermal and epithermal neutrons

Mastromarco, M.; Manna, A.; Aberle, O.; Andrzejewski, J.; Audouin, L.; Bacak, M.; Balibrea, J.; Barbagallo, M.; Bečvář, F.; Berthoumieux, E.; Billowes, J.; Bosnar, D.; Brown, A.; Caamaño, M.; Calviño, F.; Calviani, M.; Cano‐Ott, D.; Cardella, R.; Casanovas, A.; Castelluccio, Donato Maurizio; Cerutti, F.; Chen, Y. H.; Chiaveri, E.; Clai, G.; Colonna, N.; Cortés, G.; Cortés‐Giraldo, M. A.; Coséntino, L.; Damone, L. A.; Diakaki, Μ.; Domingo‐Pardo, C.; Dressler, R.; Dupont, E.; Durán, I.; Fernández–Domínguez, B.; Ferrari, A.; Ferreira, Paulo Ricardo Araújo; Finocchiaro, P.; Furman, V.; Göbel, K.; García, A. R.; Gawlik, A.; Gilardoni, S.; Glodariu, T.; Gonçalves, I. F.; González‐Romero, E.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Guglielmelli, Antonio; Harada, Hideo; Heinitz, S.; Heyse, J.; Jenkins, D. G.; Jericha, E.; Käppeler, F.; Kadi, Y.; Kalamara, A.; Kavrigin, P.; Kimura, Akira; Kivel, N.; Knapová, I.; Kokkoris, M.; Krtička, M.; Kurtulgil, D.; Leal-Cidoncha, E.; Lederer, C.; Leeb, H.; Lerendegui-Marco, J.; Lonsdale, S. J.; Macina, D.; Marganiec, J.; Martínez, T.; Masi, A.; Massimi, C.; Mastinu, P.; Maugeri, E. A.; Mazzone, A.; Mendoza, E.; Mengoni, A.; Milazzo, Paolo; Mingrone, F.; Musumarra, A.; Negreţ, A.; Nolte, R.; Oprea, A.; Patronis, N.; Pavlik, A.; Perkowski, J.; Porras, I.; Praena, J.; Quesada, J.; Radeck, D.; Rauscher, T.; Reifarth, R.; Rocchi, Federico; Rubbia, C.; Ryan, J. A.; Sabaté-Gilarte, M.; Saxena, A.; Schillebeeckx, P.; Schumann, D.; Sedyshev, P.; Smith, A. G.; Sosnin, N. V.; Stamatopoulos, A.; Tagliente, G.; Taín, J. L.; Tarifeño-Saldivia, A.; Tassan‐Got, L.; Valenta, S.; Vannini, G.; Variale, V.; Vaz, P.; Ventura, A.; Vlachoudis, V.; Vlastou, R.; Wallner, A.; Warren, S.; Weiß, C.; Winants, R.; Woods, P. J.; Wright, T.; Žugec, P.

doi:10.1140/epja/i2019-12692-7

Cited by 24 publications

(6 citation statements)

References 42 publications

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“…However, if the desired high level of enrichment cannot be produced or found, a viable option is to measure and analyse simultaneously the capture cross section of several (in principle all) stable isotopes of a given element, possibly using enriched samples. This is the case of 154 Gd(n,γ) cross Section [65] recently measured at n_TOF together with 155 Gd(n,γ) and 157 Gd(n,γ) [69]. The enrichment of the available sample was only 66.78% in 154 Gd, and the main contaminant was 155 Gd and 157 Gd to a minor extent.…”

Section: S-only Nucleimentioning

confidence: 87%

n_TOF: Measurements of Key Reactions of Interest to AGB Stars

et al. 2022

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In the last 20 years, the neutron time-of-flight facility n_TOF at CERN has been providing relevant data for the astrophysical slow neutron capture process (s process). At n_TOF, neutron-induced radiative capture (n,γ) as well as (n,p) and (n,α) reaction cross sections are measured as a function of energy, using the time-of-flight method. Improved detection systems, innovative ideas and collaborations with other neutron facilities have lead to a considerable contribution of the n_TOF collaboration to studying the s process in asymptotic giant branch stars. Results have been reported for stable and radioactive samples, i.e., 24,25,26Mg,26Al, 33S, 54,57Fe, 58,59,62,63Ni, 70,72,73Ge, 90,91,92,93,94,96Zr, 139La, 140Ce, 147Pm, 151Sm, 154,155,157Gd, 171Tm, 186,187,188Os, 197Au, 203,204Tl, 204,206,207Pb and 209Bi isotopes, while others are being studied or planned to be studied in the near future. In this contribution, we present an overview of the most successful achievements, and an outlook of future challenging measurements, including ongoing detection system developments.

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Section: S-only Nucleimentioning

confidence: 87%

n_TOF: Measurements of Key Reactions of Interest to AGB Stars

et al. 2022

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“…It is based on a lattice of normal-conducting magnets designed to deliver antiproton beams in the momentum range from 1.5 to 15 GeV/c. An important feature of this new facility is the high-bandwidth stochastic cooling [43] capable to provide phase-space cooled antiproton beams with which the PANDA internal targets (proton or nuclear targets) opens outstanding capabilities for high precision experiments in QCD [44]. Two operation modes are foreseen: a) the high luminosity mode with peak luminosities of up to 2 × 10 32 cm -2 s -1 and b) high resolution mode with a relative momentum spread of the order of a few ×10 −5 .…”

Section: Antiprotons At Fairmentioning

confidence: 99%

FAIR status and the PANDA experiment

Belias¹

2020

J. Inst.

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The international accelerator Facility for Antiproton and Ion Research in Europe (FAIR) is the next generation accelerator complex for fundamental and applied research with antiproton and ion beams. FAIR will provide worldwide unique facilities enabling a wide spectrum of unprecedented forefront research in hadron and nuclear physics, in atomic physics and nuclear astrophysics as well as in applied sciences like materials research, plasma physics and radiation biophysics. Key features of FAIR are intense beams of antiprotons and ions up to the heaviest and even exotic nuclei covering an energy range from rest up to 30 GeV/u. We present a brief overview on the current construction status of the FAIR accelerator facilities and the associated research pillars with emphasis on PANDA . PANDA (antiProton Annihilation in Darmstadt), is the central experiment to fully exploit the physics research potential of the High Energy Storage Ring (HESR) with intense, phase-space cooled, antiprotons up to 15 GeV/c impinging on a variety of fixed targets. The PANDA detector features two spectrometers, the Target Spectrometer with a SC solenoid magnet of 2 T and the Forward Spectrometer with a 2 Tm dipole magnet. In both spectrometers the PANDA collaboration employs a multitude of modern detector technologies to provide tracking, particle identification, calorimetry and muon identification, arranged hermetically close to 4π around the interaction region with additional detectors for coverage of the forward boosted particles. Focusing on the various PANDA detector systems we present an overview of recent developments, the detector construction progress and conclude with an outline for a phased deployment of PANDA at FAIR.

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“…This is a non-destructive technique in which the neutrons interact with the nuclei of the sample, in contrast to x-rays which transfer energy to the electrons [32]. Thus, the element-specificity differs greatly between the methods, a fact that is appreciable when considering the neutron absorption cross section of Gd σ Gd = 46, 700 barn for thermal neutrons [33], providing unrivalled contrast and excellent properties for the mapping of concentration evolution [6,34]. Gd also happens to have a large magnetic moment 7 µ B , courtesy of the unpaired electrons in its half filled 4f shell.…”

Section: Introductionmentioning

confidence: 99%

Neutron Imaging of Paramagnetic Ions: Electrosorption by Carbon Aerogels and Macroscopic Magnetic Forces

Butcher,

Prendeville,

Rafferty

et al. 2021

Preprint

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The electrosorption of Gd 3+ ions from aqueous 70 mM Gd(NO3)3 solution in monolithic carbon aerogel electrodes was recorded by dynamic neutron imaging. The aerogels have a bimodal pore size distribution consisting of macropores centred at 115 nm and mesopores centred at 15 nm. After the uptake of Gd 3+ ions by the negatively charged surface of the porous structure, an inhomogeneous magnetic field was applied to the system of discharging electrodes. This led to a convective flow and confinement of Gd(NO3)3 solution in the magnetic field gradient. Thus, a way to desalt and capture paramagnetic ions from an initially homogeneous solution is established.

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Cross section measurements of 155,157Gd(n,$\gamma$γ) induced by thermal and epithermal neutrons

Cited by 24 publications

References 42 publications

n_TOF: Measurements of Key Reactions of Interest to AGB Stars

n_TOF: Measurements of Key Reactions of Interest to AGB Stars

FAIR status and the PANDA experiment

Neutron Imaging of Paramagnetic Ions: Electrosorption by Carbon Aerogels and Macroscopic Magnetic Forces

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