Results 331 to 340 of about 1,250,492 (368)

Neutrons for rafts, rafts for neutrons

The European Physical Journal E, 2013
The determination of the structure of membrane rafts is a challenging issue in biology. The selection of membrane components both in the longitudinal and transverse directions plays a major role as it determines the creation of stable or tunable platforms that host interactions with components of the outer environment.
V. Rondelli, E. Del Favero, S. Motta, L. Cantù, G. Fragneto, P. Brocca   +5 more
openaire   +3 more sources

Neutron Production, Neutron Facilities and Neutron Instrumentation

Reviews in Mineralogy and Geochemistry, 2006
The main natural source of free neutrons is secondary radiation from cosmic radiation (creation of particles by interactions of cosmic radiation particles with atoms of the earth’s atmosphere). The main sources of neutrons generated artificially are nuclear reactors. Free neutrons have an average lifetime of about 888 seconds (e.g., Mampe et al.
Sven C. Vogel, Hans-Georg Priesmeyer
openaire   +2 more sources

Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event

Nature, 2017
The cosmic origin of elements heavier than iron has long been uncertain. Theoretical modelling shows that the matter that is expelled in the violent merger of two neutron stars can assemble into heavy elements such as gold and platinum in a process known
D. Kasen, B. Metzger, J. Barnes, E. Quataert, E. Ramirez-Ruiz   +4 more
semanticscholar   +1 more source

Neutron-Proton and Neutron-Neutron Scattering at High Energies

Physical Review, 1949
The phase method and the Born approximation is used to calculate the cross sections of high energy neutrons scattered by protons and neutrons. Various exchange theories are considered for both, central and tensor forces of rectangular and Yukawa well shape.
Julian Eisenstein, F. Rohrlich
openaire   +2 more sources

Calculations of neutron spectra after neutron–neutron scattering

Journal of Physics G: Nuclear and Particle Physics, 2004
A direct neutron–neutron scattering length, ann, measurement with the goal of 3% accuracy (0.5 fm) is under preparation at the aperiodic pulsed reactor YAGUAR. A direct measurement of ann will not only help resolve conflicting results of ann by indirect means, but also in comparison to the proton–proton scattering length, app, shed light on the charge ...
E. I. Sharapov, G. V. Nekhaev, C. R. Howell, A. Yu. Muzichka, W.I. Furman, Werner Tornow, Valery Shvetsov, A. V. Strelkov, Sharon L. Stephenson, E. V. Lychagin, G. E. Mitchell, G. E. Mitchell, Bret E. Crawford   +12 more
openaire   +2 more sources

Imaging with Neutrons

Elements, 2021
By exploiting the penetration, attenuation, and scattering properties of neutrons, images of matter in two or three dimensions reveal information unobtainable using other probes. Despite the limitation in brilliance of neutron sources, several neutron-based imaging techniques are essential to different aspects of modern geoscience.
Artioli G., Hussey D. S.
openaire   +2 more sources

Formation of α clusters in dilute neutron-rich matter

Science, 2021
α particles in stable nuclei α Decay is a common mode of radioactivity in heavy elements such as uranium that entails the loss of particles comprising two protons and two neutrons.
J. Tanaka, Zaihong Yang, S. Typel, S. Adachi, S. Bai, P. van Beek, D. Beaumel, Y. Fujikawa, Jiaxing Han, S. Heil, Siwei Huang, A. Inoue, Yingda Jiang, M. Knösel, N. Kobayashi, Y. Kubota, Wei Liu, J. Lou, Y. Maeda, Y. Matsuda, K. Miki, S. Nakamura, K. Ogata, V. Panin, H. Scheit, F. Schindler, P. Schrock, D. Symochko, A. Tamii, T. Uesaka, V. Wagner, Kazuki Yoshida, J. Zenihiro, T. Aumann   +33 more
semanticscholar   +1 more source

Neutron detection and neutron dosimetry

Radiation Protection Dosimetry, 2004
A review is presented on the research and development of inorganic scintillators for position-sensitive thermal neutron detectors to be used at new spallation neutron sources. Furthermore some recent developments in the field of fast-neutron dosimetry will be discussed.
openaire   +3 more sources