Nuclear Physics
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2022 ◽  
Vol 2155 (1) ◽  
pp. 011001

(word. doc) should be separate from the PDFs and include information about their virtual format if this is relevant. This information should include: • The reason(s) why the meeting will take/took place virtually (covid- 19/travel restrictions, etc). • The Forum was held both online and offline. All participants who took part offline provided vaccination certificates. The online forum was held for participants who did not have the opportunity to participate in the forum directly or to submit a report in person. Including, in order to be able for the majority of participants to participate in the Forum in a format convenient for them. • Location where the organisers will be/were. • The Forum was held on the premises of the Institute of Nuclear Physics in Almaty, Kazakhstan • The Model, for example, the plenary, the contributions, the time spent to deliver the talks by each speaker. • • The version of the poster or oral presentation was adopted as a model of reports, both online and offline. Plenary lectures were conducted both online and offline, through the presentation and oral presentation of the speaker. In each section, the time for a report was different, on average it ranged from 20 to 30 minutes. • The discussions, the feasibility, room for Q&A? • All questions and discussions were held in conference halls of 5 sections. Including online. Everyone could ask a question and get an answer, upon completion of the report, 10-15 minutes were allotted for this procedure. • The participants: location and the overall attendance number expected. • The participants took part in the forum on the territory of the Institute of Nuclear Physics. Within 5 days, more than 90% of the participants took part offline. There were more than 90 offline participants in total. In general, about 300 applications were accepted for participation in the forum. • The technology needed to deliver the meeting successfully. • The Forum was provided with the most modern technical equipment. Each section contained several projectors, computers and microphone sets for the participants. To ensure high parallelization of communication, high-speed Internet access was used for each 4G section. • Mention any technical difficulties. • • Technical difficulties during the forum were minor and were resolved as they arose. All forum participants appreciated the high level of technical equipment of the forum. • Mention any drawbacks in the delivery of the conference virtually, e.g. impact on the community. • No shortcomings were identified during the forum. The forum had an extremely positive impact on the public, which was mentioned in his speech for the journalists of the national channel, the chairman of the forum and the general director of the INP Batyrzhan Karakozov. Please make sure that the following information is included in the preface: l. The full list of committees names and affiliations which shall be published as part of the preface. Editors of proceedings, ORGANISING COMMITTEE, INTERNATIONAL ADVISORY BOARD, and ORGANIZED BY are available in the pdf.

Symmetry ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 47
Paul Nicolae Borza ◽  
Sorin Vlase

The ELI-NP (Extreme Light Intensity—Nuclear Physics) project, developed at the Horia Hulubei National Institute for RD in Physics and Nuclear Engineering (IFIN-HH), has included one component dedicated to the study of interactions between brilliant gamma-ray and matter, with applications in nuclear physics and the science of materials. The paper is focused on the interaction chamber, an important part of the facility which hosts the experiment’s samples. The interaction chamber is endowed with a mobile sample support (holder), which automatically tracks the γ-ray beam. The γ-ray radiation source presents a slight variation of the direction of the emitted radiation in time. The built system ensures the permanent collimation between the γ-ray beam and the sample that is being investigated. This is done with two electric motors, which have a symmetrical movement with respect to the center of a rectangle. The specific measures taken by the design and implementation that permit to reach performances of tracking system are emphasized in the paper. The methodology considers the relative displacement between the detectors with which the laboratory is equipped and the absolute position in space of the sample boundary. The control of this motion is designed to respect the symmetry of the system. Both facets of the project (hardware and software) are detailed, emphasizing the way in which the designers ensured compliance with the system of real-time operation conditions of the tracking and monitoring system.

2021 ◽  
Vol 104 (6) ◽  
M. Cadeddu ◽  
N. Cargioli ◽  
F. Dordei ◽  
C. Giunti ◽  
Y. F. Li ◽  

Wu Wang ◽  
Hanxu Zhang ◽  
Xu Wang

Abstract We show how two apparently unrelated research areas, namely, strong-field atomic physics and $^{229}$Th nuclear physics, are connected. The connection is possible due to the existence of a very low-lying excited state of the $^{229}$Th nucleus, which is only about 8 eV above the nuclear ground state. The connection is physically achieved through an electron recollision process, which is the core process of strong-field atomic physics. The laser-driven recolliding electron is able to excite the nucleus, and a simple model is presented to explain this recollision-induced nuclear excitation (RINE) process. The connection of these two research areas provides novel opportunities for each area and intriguing possibilities from the direct three-partite interplay between atomic physics, nuclear physics, and laser physics.

2021 ◽  
Ibrahima Sakho

Physics ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 1226-1236
Alexandra Gade

One ambitious goal of nuclear physics is a predictive model of all nuclei, including the ones at the fringes of the nuclear chart which may remain out of experimental reach. Certain regions of the chart are providing formidable testing grounds for nuclear models in this quest as they display rapid structural evolution from one nucleus to another or phenomena such as shape coexistence. Observables measured for such nuclei can confirm or refute our understanding of the driving forces of the evolution of nuclear structure away from stability where textbook nuclear physics has been proven to not apply anymore. This paper briefly reviews the emerging picture for the very neutron-rich Fe, Cr, and Ti isotopes within the so-called N=40 island of inversion as obtained with nucleon knockout reactions. These have provided some of the most detailed nuclear spectroscopy in very neutron-rich nuclei produced at rare-isotope facilities. The results indicate that our current understanding, as encoded in large-scale shell-model calculations, appears correct with exciting predictions for the N=40 island of inversion left to be proven in the experiment. A bright future emerges with predictions of continued shell evolution and shape coexistence out to neutron number N=50, below 78Ni on the chart of nuclei.

2021 ◽  
Vol 16 (12) ◽  
pp. T12001
L. Capponi ◽  
A. Kuşoğlu ◽  
P.-A. Söderström ◽  
D.L. Balabanski ◽  
G.V. Turturică ◽  

Abstract The new facility, Extreme Light Infrastructure – Nuclear Physics (ELI-NP), is a combined laser-gamma nuclear physics research facility currently undergoing its final implementation stages in Măgurele near Bucharest, Romania. It already hosts two fully-operational 10 PW laser arms and, by 2023, it will also house a γ-beam system based on laser Compton backscattering, capable of delivering a high-brilliance, low-energy beam at E γ ≲ 19.5 MeV. Owing to this unique laser-gamma instrumentation combination, several types of experiments will be possible at ELI-NP, including high precision nuclear resonance fluorescence (NRF) experiments. In this case, the main γ-beam detection system for performing NRF studies at ELI-NP is represented by the ELI Array of DEtectors (ELIADE), featuring eight high-purity germanium (HPGe) segmented clover detectors. The current work presents the characteristics of two of the ELIADE detectors, including their photopeak detection efficiency, energy resolution, and peak-to-total ratio measured using γ-ray sources, as well as the timing performance obtained via in-beam measurements. For these latter detector tests, 130La was populated via the fusion evaporation reaction 121Sb(12C,3n)130La using a beam energy of 53 MeV at the Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), also located in Măgurele. Herein, we report on the results of the ^130La linear polarization measurements taken using the ELIADE detectors as Compton polarimeters. The results obtained from the in-beam experiment were compared to several already published works and we present new information on the transition multipolarity in 130La.

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