Results 61 to 70 of about 1,007,282 (142)

The evaluated nuclear data library for ADS in China

EPJ Web of Conferences, 2017
The neutron and proton reaction data up to 200 MeV are calculated and evaluated using both nuclear model calculations and experimental data for Accelerator Driven System (ADS).
Han Yinlu, Guo Hairui, Xu Yongli, Zhang Zhengjun, Liang Haiying, Wu Zhendong, Su Xinwu, Zhang Yue, Cai Chonghai, Shen Qingbiao   +9 more
doaj   +1 more source

The impact of atomic data selection on nebular abundance determinations

, 2017
Atomic data are an important source of systematic uncertainty in our determinations of nebular chemical abundances. However, we do not have good estimates of these uncertainties since it is very difficult to assess the accuracy of the atomic data ...
de Dios, Leticia Juan, Rodríguez, Mónica   +1 more
core   +1 more source

Measuring nebular temperatures: the effect of new collision strengths with equilibrium and kappa-distributed electron energies

, 2013
In this paper we develop tools for observers to use when analysing nebular spectra for temperatures and metallicities, with two goals: to present a new, simple method to calculate equilibrium electron temperatures for collisionally excited line flux ...
Dopita, Michael A., Kewley, Lisa J., Nicholls, David C., Palay, Ethan, Sutherland, Ralph S.   +4 more
core   +1 more source

Search for transient ultralight dark matter signatures with networks of precision measurement devices using a Bayesian statistics method

, 2018
We analyze the prospects of employing a distributed global network of precision measurement devices as a dark matter and exotic physics observatory. In particular, we consider the atomic clocks of the Global Positioning System (GPS), consisting of a ...
Blewitt, G., Dailey, C., Derevianko, A., Roberts, B. M.   +3 more
core   +1 more source

New 56Fe Evaluation for the CIELO project

EPJ Web of Conferences, 2016
The Collaborative International Evaluated Library Organisation (CIELO) aims to provide revised and updated evaluations for 239Pu, 238,235U, 56Fe, 16O, and 1H through international collaboration. This work, which is part of the CIELO project, presents the
Nobre G. P. A., Herman M., Brown D., Capote R., Trkov A., Leal L., Plompen A., Danon Y., Qian Jing, Ge Zhigang, Liu Tingjin, Lu Hnalin, Ruan Xichao   +12 more
doaj   +1 more source

Critical Benchmark Validation of the Core Physics Multigroup Cross-Section Library TPEX

Energies
Core physics multigroup cross-section libraries provide essential cross-section and burnup data for reactor neutron physics calculations, serving as a fundamental prerequisite for reactor physics analysis.
Ying Chen, Haicheng Wu, Lili Wen, Yue Xiao, Jinchao Zhang, Qian Zhang, Xiaofei Wu, Huanyu Zhang   +7 more
doaj   +1 more source

Notes on Critical Assessment of Theoretical Calculations of Atomic Structure and Transition Probabilities

Atoms, 2013
Atomic structure and transition probabilities are fundamental physical data required in many fields of science and technology. Atomic physics codes are freely available to other community users to generate atomic data for their interest, but the quality ...
Hyun-Kyung Chung, Per Jönsson, Alexander Kramida   +2 more
doaj   +1 more source

Accurate abundance analysis of late-type stars: advances in atomic physics

, 2016
The measurement of stellar properties such as chemical compositions, masses and ages, through stellar spectra, is a fundamental problem in astrophysics.
Barklem, Paul S.
core   +1 more source

Accurate pulse time distribution determination using MLEM algorithm in integral experiments

Nuclear Engineering and Technology
Integral experiments play a crucial role in advancing nuclear science and technology by providing critical data that validate theoretical models and enhance reactor designs.
S.Y. Zhang, Y.B. Nie, Y.Y. Ding, Q. Zhao, K.Z. Xu, X.Y. Pan, H.T. Chen, Q. Sun, Z. Wei   +8 more
doaj   +1 more source

ATOMIC and Molecular Data [PDF]

Symposium - International Astronomical Union, 1978
Excitation, ionization and recombination processes are discussed elsewhere in this volume by Seaton (1977). I will restrict my attention to those processes involving heavy particles that may modify the ionization structure of planetary nebulae and that may affect the molecular composition of condensations and of the transition regions between the ...
openaire   +1 more source