A TPC Detector for Studying Photo-nuclear Reactions at Astrophysical Energies with Gamma-ray Beams at ELI--NP

Ćwiok, M.; Bieda, Michael R.; Bihałowicz, Jan Stefan; Dominik, W.; Janas, Z.; Janiak, Ł.; Mańczak, J.; Matulewicz, T.; Mazzocchi, C.; Pfützner, M.; Podlaski, P.; Sharma, S.P.; Zaremba, Marcin; Balabanski, D. L.; Bey, A.; Ghiţă, D.; Tešileanu, O.; Gai, M.

doi:10.5506/aphyspolb.49.509

Cited by 15 publications

(7 citation statements)

References 16 publications

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“…The current results were obtained with an optical readout TPC (O-TPC). A considerably better electronic readout TPC [10,11] was constructed at the University of Warsaw (the ELITPC) with considerably better performance characteristics. We intend to repeat the measurement reported here with the O-TPC at the HIγS using the ELITPC, and continue to lower energies approaching ∼1.…”

Section: Resultsmentioning

confidence: 99%

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Gai

2022

EPJ Web Conf.

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The carbon/oxygen (C/O) ratio at the end of stellar helium burning is not known with sufficient accuracy due to the large uncertainty in the cross-section of the 12C(α, γ)16O reaction. We developed a new method to measure this reaction that is significantly different from the experimental efforts of the past four decades. Data were measured with vanishingly small background, inside one detector, that also serves as an active target (AT-TPC). Angular distributions of the 12C(α, γ)16O reaction were obtained by measuring the inverse 16O(γ, α)12C reaction with gamma-beams (from the HIγS facility) and an optical readout time projection chamber (O-TPC) detector. We agree with current world data on the measured total reaction cross-section. We further evidence the strength of our method with angular distributions measured over the 1–resonance at Ecm ~ 2.4 MeV. We extract the E1-E2 mixing phase angle (ϕ12) over this resonance and obtained values that follow the trend of prediction based on unitarity of the scattering amplitude. Our technique promises to yield results that will surpass the quality of the currently available data. We continue these measurements to lower energies at the HIγS facility of TUNL at Duke University, and anticipate measurements down to Ecm = 1.1 MeV at the ELI-NP, the EU facility in Romania..

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Section: Resultsmentioning

confidence: 99%

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Gai

2022

EPJ Web Conf.

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“…Techniques allowing the direct measurement of photon-induced reactions have also been developed (e.g. [272]). As already mentioned above, photodisintegration rates can also be obtained through the application of the reciprocity theorem to the corresponding inverse radiative capture reaction.…”

Section: Charged-particle Induced Reaction: a Brief Overview Of Expermentioning

confidence: 99%

Astronuclear Physics: A tale of the atomic nuclei in the skies

Arnould

Goriely

2020

Progress in Particle and Nuclear Physics

102

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A century ago, nuclear physics entered astrophysics, giving birth to a new field of science referred to as "Nuclear Astrophysics". With time, it developed at an impressive pace into a vastly inter-and multidisciplinary discipline bringing into its wake not only astronomy and cosmology, but also many other sub-fields of physics, especially particle, solid-state and computational physics, as well as chemistry, geology and even biology. The present Astronuclear Physics review focusses primarily on the facets of nuclear physics that are of relevance to astronomy and astrophysics, the theoretical aspects being of special concern here. The observational aspects of astronomy and astrophysics that may have some connection to nuclear physics are only broadly reviewed, mainly through the provision of recent relevant references. Multi-messenger astronomy has developed most remarkably during the last decades, with often direct implications for nuclear astrophysics. The electromagnetic view of the components of the Universe has improved dramatically at all wavelengths, from the γ-ray to the radio domains, providing important new information on the Big Bang and the properties of stars. Neutrino astronomy has made giant steps forward. In particular, the famed "solar neutrino problem" is now behind us. The long-sought gravitational waves have at last been detected, with direct relevance namely to the merger of compact stars. The composition of Galactic Cosmic Rays and stellar/solar energetic particles is better known than ever, providing constrains on the GCR physics.On the stellar modeling side, we broadly brush the progress that has been made based on new observations, and even more so on the spectacular increase in computer capabilities. We briefly outline recent advances regarding the quiescent evolution of stars, as well as the eventual catastrophic supernova explosion of certain classes of them. In spite of significant improvements in the simulations, many long-standing problems still await solid solutions, particularly regarding the details and robustness of explosion simulations. In fact, new questions are continuously emerging, and new facts may endanger old ideas.The lion's share of this review concerns the nuclear physics phenomena that may be at work in astrophysical conditions, with a strong focus on theory. Exceptionally large varieties of nuclei have to be dealt with, ranging from the lightest to the heaviest ones, from the valley of nuclear stability all the way to the proton and neutron drip lines. An additional serious difficulty comes from the fact that the nuclei are immersed in highly unusual environments which may have a significant impact on their static properties, the diversity of their transmutation modes, some of which not being observable in the laboratory, and on the probabilities of these modes. The description of nuclei as individual entities has even to be replaced by the construction of an Equation of State at high enough temperatures and/or densities prevailing in the cores of exploding stars an...

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“…Gamma-Beams. Gamma-beams (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) MeV) proved to be enormously useful for low energy nuclear physics studies in the pioneering work at the High Intensity Gamma-ray Source (HIγS) facility at the Triangle Nuclear Physics Laboratories (TUNL) located at Duke University in the USA [1]. Further improvement of the energy resolution (by a factor 5) and intensity (by a factor of 10) anticipated for the Extreme Light Infrastructure -Nuclear Physics (ELI-NP) facility under construction at Magurele near Bucharest in Romania [2], promises to allow some of the most crucial measurements in nuclear astrophysics.…”

Section: Introductionmentioning

confidence: 99%

“…In order to fully utilize the high intensity anticipated for the ELI-NP gamma beam an electronic readout (eTPC) concept has been developed [5]. A mini-TPC [10] prototype of the full detector planned to be used at the ELI-NP facility (ELITPC) was constructed at the University of Warsaw and delivered to the ELI-NP facility.…”

Section: Introductionmentioning

confidence: 99%

Time Projection Chamber (TPC) detectors for nuclear astrophysics studies with gamma beams

Gai

Schweitzer

Stern

et al. 2020

Nuclear Instruments and Methods in Physics Research Section A:

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Gamma-Beams at the HIγS facility in the USA and anticipated at the ELI-NP facility, now constructed in Romania, present unique new opportunities to advance research in nuclear astrophysics; not the least of which is resolving open questions in oxygen formation during stellar helium burning via a precise measurement of the 12 C(α, γ) reaction. Time projection chamber (TPC) detectors operating with low pressure gas (as an active target) are ideally suited for such studies. We review the progress of the current research program and plans for the future at the HIγS facility with the optical readout TPC (O-TPC) and the development of an electronic readout TPC for the ELI-NP facility (ELITPC).

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A TPC Detector for Studying Photo-nuclear Reactions at Astrophysical Energies with Gamma-ray Beams at ELI--NP

Cited by 15 publications

References 16 publications

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Astronuclear Physics: A tale of the atomic nuclei in the skies

Time Projection Chamber (TPC) detectors for nuclear astrophysics studies with gamma beams

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A TPC Detector for Studying Photo-nuclear Reactions at Astrophysical Energies with Gamma-ray Beams at ELI--NP

Cited by 15 publications

References 16 publications

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the 12C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the 12C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Astronuclear Physics: A tale of the atomic nuclei in the skies

Time Projection Chamber (TPC) detectors for nuclear astrophysics studies with gamma beams

Contact Info

Product

Resources

About

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]

Oxygen Formation in the Light of Gamma-Beams: [Precision Measurements of the ¹²C(α, γ) Reaction with Gamma-Beams and a Time Projection Chamber]