Results 81 to 90 of about 33,962 (221)

Model Calculations for Cosmogenic Nuclides in Meteorites and the Lunar Surface. 1. Long‐lived Radionuclides

Meteoritics &Planetary Science, EarlyView.
Abstract Production rates for the cosmogenic radionuclides 10Be, 14C, 26Al, 36Cl, 41Ca, 53Mn, and 60Fe in a large variety of meteorites, that is, ordinary chondrites (H, L, LL), carbonaceous chondrites, HED meteorites, ureilites, Martian meteorites, and iron meteorites and in the uppermost ~2 m of the lunar surface are modeled.
Ingo Leya
wiley   +1 more source

Production of the p-Process Nuclei in the Carbon-Deflagration Model for Type Ia Supernovae

, 2010
We calculate nucleosynthesis of proton-rich isotopes in the carbon-deflagration model for Type Ia supernovae (SNe Ia). The seed abundances are obtained by calculating the s-process nucleosynthesis that is expected to occur in the repeating helium shell ...
Aoki, Costa, Dillmann, Fröhlich, Fujimoto, Fujimoto, Gallino, Hayakawa, Hayakawa, Howard, Karakas, Ken'ichi Nomoto, Motohiko Kusakabe, Nishimura, Nobuyuki Iwamoto, Prantzos, Pruet, Pruet, Rapp, Rauscher, Rayet, Rayet, Straniero, Sugimoto, Tsujimoto, Wanajo   +25 more
core   +1 more source

Terrestrial ages of meteorites from the Atacama Desert (Chile) and insights into the past meteorite flux to Earth

Meteoritics &Planetary Science, EarlyView.
Abstract The Atacama Desert in Chile is characterized by its high meteorite density and old meteorite terrestrial ages. In this work, we present new terrestrial ages derived from measurements of the concentration of cosmogenic 36Cl in the metal fraction of 51 ordinary chondrites collected over a 6.8 km2 area located in the Catalina Dense Collection ...
Carine Sadaka, Jérôme Gattacceca, Florian Dumas, Régis Braucher, ASTER Team, Ingo Leya, Mohammad Tauseef, Pierre‐Henri Blard, David Bekaert, Evelyn Füri, Laurent Zimmermann, Anthony Lagain, Hadrien A. R. Devillepoix, Matthieu Gounelle   +13 more
wiley   +1 more source

Identification of low-count, low-resolution gamma spectral radionuclide using 2DCNN-BiLSTM neural network

Nuclear Engineering and Technology
To address the challenges of feature extraction and low classification accuracy in low-count, low-resolution gamma spectra with emerging nuclide identification methods, we proposed a novel approach using a two-dimensional convolutional bidirectional long
Shu-Xin Zeng, Rui Shi, Guang Yang, Xian-Guo Tuo, Xiong Zeng, Ya-Nan Shang, Zhou Wang, Heng Zhang   +7 more
doaj   +1 more source

Unconventional Nuclides for Radiopharmaceuticals

Molecular Imaging, 2010
Rapid and widespread growth in the use of nuclear medicine for both diagnosis and therapy of disease has been the driving force behind burgeoning research interests in the design of novel radiopharmaceuticals. Until recently, the majority of clinical and basic science research has focused on the development of 11C-, 13N-, 15O-, and 18F ...
Jason P. Holland, Matthew J. Williamson, Jason S. Lewis   +2 more
openaire   +3 more sources

Microbial Endolithic Community at Meteor Crater

Meteoritics &Planetary Science, EarlyView.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source

Calculation of Excitation Function and Thick Target Yield for α+209 Bi Reaction

Yuanzineng kexue jishu
The excitation function of the charged particle-induced reaction plays an important role in basic nuclear physics research, nuclear engineering design and nuclear technology applications, and which is also essential input information required in areas ...
LIU Yangyang, HUANG Xiaolong, WANG Jimin, LIU Lile, JIN Yongli, WANG Xianghan, WANG Wenye
doaj   +1 more source

A Step-by-Step Guide for the Novel Radiometal Production for Medical Applications: Case Studies with ⁶⁸Ga, ⁴⁴Sc, ¹⁷⁷Lu and ¹⁶¹Tb

Molecules, 2020
The production of novel radionuclides is the first step towards the development of new effective radiopharmaceuticals, and the quality thereof directly affects the preclinical and clinical phases.
Zeynep Talip, Chiara Favaretto, Susanne Geistlich, Nicholas P. van der Meulen   +3 more
doaj   +1 more source

Crossover from a fission-evaporation scenario towards multifragmentation in spallation reactions [PDF]

, 2006
Mostly for the purpose of applications for the energy and the environment and for the design of sources of neutrons or exotic nuclides, intense research has been dedicated to spallation, induced by protons or light projectiles at incident energies of ...
Napolitani, P.
core   +2 more sources

Model-independent assessment of current direct searches for spin-dependent dark matter

, 2004
I evaluate the current results of spin-dependent weakly interacting massive particle (WIMP) searches within a model-independent framework, showing the most restrictive limits to date derive from the combination of xenon and sodium iodide experiments. The
E. Browne, F. Giuliani, J. Engel, W. Seidel   +3 more
core   +1 more source