Results 61 to 70 of about 1,650,237 (289)

Nuclear astrophysics in the laboratory and in the universe

AIP Advances, 2014
Nuclear processes drive stellar evolution and so nuclear physics, stellar models and observations together allow us to describe the inner workings of stars and their life stories.
A. E. Champagne, C. Iliadis, R. Longland
doaj   +1 more source

Nuclear astrophysics studies with ultra-peripheral heavy-ion collisions

, 2009
I describe in very simple terms the theoretical tools needed to investigate ultra-peripheral nuclear reactions for nuclear astrophysics purposes. For a more detailed account, see arXiv:0908.4307.Comment: 12 pages, 8 figures, Lecture notes presented at ...
Bertulani, C. A.
core   +1 more source

Nuclear astrophysics research based on HI-13 tandem accelerator

He jishu, 2023
The first radioactive ion beam line, GIRAFFE, has been built at the CIAE HI-13 tandem accelerator in China. A total of eleven types of radioactive ion beam, including 6He, 7Be, and 8Li, have been generated.
LI Jiayinghao, LI Yunju, LI Zhihong, WANG Youbao, SHEN Yangping, GUO Bing, LIU Weiping   +6 more
doaj   +1 more source

Recent Astrophysics Results from ORELA and Possible Future Experiments at ORELA and SNS

, 2002
I present some recent results from experiments at the Oak Ridge Electron Linear Accelerator (ORELA) and discuss their impact in nuclear astrophysics. I then describe some possible future nuclear astrophysics experiments at ORELA and at the Spallation ...
Koehler, P. E.
core   +1 more source

Underground nuclear astrophysics: Why and how [PDF]

European Physical Journal A, 2016
The goal of nuclear astrophysics is to measure cross-sections of nuclear physics reactions of interest in astrophysics. At stars temperatures, these cross-sections are very low due to the suppression of the Coulomb barrier.
A. Best, A. Caciolli, Z. Fülöp, G. Gyürky, M. Laubenstein, Enrico Napolitani, V. Rigato, V. Roca, T. Szücs   +8 more
semanticscholar   +1 more source

Detectors and Shieldings: Past and Future at LUNA

Universe
Nuclear reactions are responsible for the chemical evolution of stars, galaxies and the Universe. Unfortunately, at temperatures of interest for nuclear astrophysics, the cross-sections of the thermonuclear reactions are in the pico- femto-barn range and
Chemseddine Ananna, Lucia Barbieri, Axel Boeltzig, Matteo Campostrini, Fausto Casaburo, Alessandro Compagnucci, Laszlo Csedreki, Riccardo Maria Gesue, Jordan Marsh, Daniela Mercogliano, Denise Piatti, Duncan Robb, Ragandeep Singh Sidhu, Jakub Skowronski   +13 more
doaj   +1 more source

Nuclear Physics Experiments with Ion Storage Rings [PDF]

, 2013
In the last two decades a number of nuclear structure and astrophysics experiments were performed at heavy-ion storage rings employing unique experimental conditions offered by such machines.
Bishop, S., Blaum, K., Bosch, F., Brandau, C., Chen, L. X., Dillmann, I., Egelhof, P., Geissel, H., Grisenti, R. E., Hagmann, S., Heil, M., Heinz, A., Kalantar-Nayestanaki, N., Knöbel, R., Kozhuharov, C., Lestinsky, M., Litvinov, Yu. A., Ma, X. W., Nilsson, T., Nolden, F., Ozawa, A., Raabe, R., Reed, M. W., Reifarth, R., Sanjari, M. S., Schneider, D., Simon, H., Steck, M., Stöhlker, T., Sun, B. H., Tu, X. L., Uesaka, T., Wakasugi, M., Walker, P. M., Weick, H., Winckler, N., Woods, P. J., Xu, H. S., Yamaguchi, T., Yamaguchi, Y., Zhang, Y. H.   +40 more
core   +3 more sources

Artificial Intelligence‐Assisted Target Design for High‐Intensity Laser‐Driven Neutron Sources

Advanced Intelligent Systems, EarlyView.
This study presents an artificial intelligence (AI)‐assisted target design that combines particle‐in‐cell simulations with gradient ascent algorithm to optimize laser‐driven neutron sources. By enhancing the sheath electric field, the optimized structure increases neutron yield by a factor of 4,000.
Youjing Wang, Kai Zhao, Yixin Li, Zhiguo Ma, Yi Yang, Yumiao Wang, Changbo Fu, Yu‐Gang Ma   +7 more
wiley   +1 more source

Opportunities for Nuclear Astrophysics at FRANZ [PDF]

Publications of the Astronomical Society of Australia, 2009
AbstractThe ‘Frankfurter Neutronenquelle am Stern–Gerlach–Zentrum’ (FRANZ), which is currently under development, will be the strongest neutron source in the astrophysically interesting energy region in the world. It will be about three orders of magnitude more intense than the well-established neutron source at the Research Center Karlsruhe (FZK).
Reifarth, R., Chau, L. P., Heil, M., Käppeler, F., Meusel, O., Plag, R., Ratzinger, U., Schempp, A., Volk, K.   +8 more
openaire   +4 more sources

Quantifying Imperfect Cognition Via Achieved Information Gain

Annalen der Physik, EarlyView.
Cognition, the processing of information in the form of inference, communication, and memorization, is the central activity of any intelligence. To quantify imperfect cognition, the concept of achieved information gain (AIG) is introduced. AIG can be derived axiomatically, allows cognitive fidelity and efficiency to be defined mathematically, and ...
Torsten Enßlin
wiley   +1 more source