Results 41 to 50 of about 773,148 (338)

Atomic Parity Non-Conservation, Neutron Radii, and Effective Field Theories of Nuclei [PDF]

, 2005
Accurately calibrated effective field theories are used to compute atomic parity non-conserving (APNC) observables. Although accurately calibrated, these effective field theories predict a large spread in the neutron skin of heavy nuclei.
B. D. Serot, D. Budker, J. Piekarewicz, M. Centelles, M. Centelles, P. Ring, Tapas Sil, V. A. Dzuba, X. Viñas, X. Xiong   +9 more
core   +2 more sources

Synthesized effective atomic numbers for commercially available dual-energy CT [PDF]

Reports of Practical Oncology & Radiotherapy, 2020
The objective of this study was to assess synthesized effective atomic number (Zeff) values with a new developed tissue characteristic phantom and contrast material of varying iodine concentrations using single-source fast kilovoltage switching dual-energy CT (DECT) scanner.A newly developed multi energy tissue characterisation CT phantom and an ...
Kawahara, Daisuke, Ozawa, Shuichi, Yokomachi, Kazushi, Fujioka, Chikako, Kimura, Tomoki, Awai, Kazuo, Nagata, Yasushi   +6 more
openaire   +5 more sources

Effective Atomic Number Determination of Rare Earth Oxides with Scattering Intensity Ratio

Science and Technology of Nuclear Installations, 2013
Effective atomic numbers () of scientific samples (rare earth) were determined experimentally by scattering of 59.54 keV gamma photons from 5 Ci 241Am annular radioactive source.
A. Turşucu, D. Demir, P. Önder
doaj   +1 more source

Polaritonic modes in a dense cloud of atoms

, 2015
We analyze resonant light scattering by an atomic cloud in a regime where near-field interactions between scatterers cannot be neglected. We first use a microscopic approach and calculate numerically the eigenmodes of the cloud for many different ...
Browaeys, Antoine, Greffet, Jean-Jacques, Hugonin, Jean-Paul, Jennewein, Stephan, Sauvan, Christophe, Schilder, Nick, Sortais, Yvan   +6 more
core   +1 more source

A benign, low Z electron capture agent for negative ion TPCs [PDF]

, 2009
We have identified nitromethane (CH$_3$NO$_2$) as an effective electron capture agent for negative ion TPCs (NITPCs). We present drift velocity and longitudinal diffusion measurements for negative ion gas mixtures using nitromethane as the capture ...
Barton, D., Black, J. K., Dion, M. P., Hosack, M., Martoff, C. J.   +4 more
core   +3 more sources

DETERMINATION OF RADIATION SHIELDING PARAMETERS OF COCRFENITIALX ALLOYS BY USING RECENTLY DEVELOPED PHY-X/PSD AND EPIXS SOFTWARES

Journal of Amasya University the Institute of Sciences and Technology, 2022
We calculate the radiation shielding parameters of CoCrFeNiTiAlx alloys which consist of mass attenuation coefficient, linear attenuation coefficient, mean free path, half-value layer, total atomic cross section, effective atomic number and effective ...
Nurettin Arpac, Murat Aygun
doaj   +1 more source

Effective grain surface area in the formation of molecular hydrogen in interstellar clouds

, 2006
In the interstellar clouds, molecular hydrogens are formed from atomic hydrogen on grain surfaces. An atomic hydrogen hops around till it finds another one with which it combines.
A. Das, Acharyya, Acharyya, Biham, Cazaux, Cazaux, Hollenbach, K. Acharyya, Katz, Pirronello, Rae, S. Chakrabarti, S. K. Chakrabarti, Takahashi, Toniazzo   +14 more
core   +1 more source

Resonance fluorescence in a band gap material: Direct numerical simulation of non-Markovian evolution [PDF]

, 2000
A numerical method of calculating the non-Markovian evolution of a driven atom radiating into a structured continuum is developed. The formal solution for the atomic reduced density matrix is written as a Markovian algorithm by introducing a set of ...
A. Imamoḡlu, B. M. Garraway, B. M. Garraway, B. R. Mollow, C. W. Gardiner, E. Ozbay, E. Yablonovich, E. Yablonovitch, G. M. Moy, G. M. Moy, H. Carmichael, H. Carmichael, H. Carmichael, H. P. Breuer, J. D. Cresser, J. D. Joannopoulos, J. J. Hope, J. J. Hope, J. J. Hope, J. J. Hope, K. M. Ho, K. Mølmer, L. Diòsi, M. W. Jack, M. W. Jack, M. W. Jack, N. Vats, R. P. Feynman, S. John, S. John, S. John, S. John, S. John, S. M. Barnett, S. M. Tan, T. Quang, U. Gruning, U. Gruning, W. H. Press, W. Louisell, W. T. Strunz   +40 more
core   +2 more sources

The diagnostic value of quantitative parameters on dual-layer detector-based spectral CT in identifying ischaemic stroke

Frontiers in Neurology, 2023
ObjectiveTo investigate the diagnostic value of quantitative parameters of spectral computed tomography (CT) in ischaemic stroke areas.MethodsThe medical records of 57 patients with acute ischaemic stroke (AIS) who underwent plain computed tomography (CT)
Jian Huang, Jian Huang, Jinghua Chen, Jinghua Chen, Ximing Wang, Ling Hao, Jinfeng Zhang, Xiaohui Zhang, Zhihong Sheng, Kefu Liu   +9 more
doaj   +1 more source

Effective atomic numbers of some composite mixtures including borax

Annals of Nuclear Energy, 2010
Abstract Effective atomic numbers for (PbO and Na 2 B 4 O 7 10H 2 O) and (UO 2 (NO 3 ) 2 , and Na 2 B 4 O 7 10H 2 O) mixtures against changing contents of PbO, Na 2 B 4 O 7 10H 2 O, and UO 2 (NO 3 ) 2 were measured in the X-ray energy range from 25.0 to 58.0 keV.
Baştuǧ, Arif, İÇELLİ, Orhan, GÜROL, Ali, Şahin, Yusuf   +3 more
openaire   +5 more sources