نتایج جستجو برای: neutron yield

تعداد نتایج: 239350  

K. KAMALI MOGHADAM, M. AYUBIAN, T. TAHERI,

 ABSTRACT Background: With respect to the difference in the interaction of thermal neutron and X rays with matter, using two radiography systems of thermal neutron and X rays will yield highly valuable information for studying the inner structure of biologic samples. Methods: The high sensitivity of thermal neutron to hydrogen, in particular, has led to recognizing this system as a useful tool ...

2008
F. Boehm J. Busenitz B. Cook G. Gratta H. Henrikson J. Kornis D. Lawrence K. B. Lee K. McKinny L. Miller V. Novikov A. Piepke B. Ritchie D. Tracy P. Vogel Y - F. Wang J. Wolf

The yield of neutrons produced by cosmic ray muons at a shallow depth of 32 meters of water equivalent has been measured. The Palo Verde neutrino detector, containing 11.3 tons of Gd loaded liquid scintillator and 3.5 tons of acrylic served as a target. The rate of one and two neutron captures was determined. Modeling the neutron capture efficiency allowed us to deduce the total yield of neutro...

2013
Y. C. Hsu R. J. Sheu

This study intends to predict the scope of neutron production and induced radioactivity for two therapy accelerators in Taiwan: 235 MeV proton and 400 MeV/A carbon ion accelerators. For radiation safety concern, much effort has been put into associated benchmark calculations to ensure the quality of predictions. Two Monte Carlo codes FLUKA and MCNPX were applied to calculate the neutron yield f...

Journal: :medical journal of islamic republic of iran 0
m. ayubian iran university of medical sciences.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) k. kamali moghadam atomic energy organizationسازمان اصلی تایید شده: سازمان انرژی اتمی (atomic energy organization) t. taheri atomic energy organizationسازمان اصلی تایید شده: سازمان انرژی اتمی (atomic energy organization)

abstract background: with respect to the difference in the interaction of thermal neutron and x rays with matter, using two radiography systems of thermal neutron and x rays will yield highly valuable information for studying the inner structure of biologic samples. methods: the high sensitivity of thermal neutron to hydrogen, in particular, has led to recognizing this system as a useful tool i...

Journal: :Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2007

2008
V. Dexheimer S. Schramm H. Stoecker

Neutron star matter is investigated in a hadronic chiral model approach using the lowest flavor-SU(3) multiplets for baryons and mesons. The parameters are determined to yield consistent results for saturated nuclear matter as well as for finite nuclei. The influence of baryonic resonances is discussed. The global properties of a neutron star such as its mass and radius are determined. Proto-ne...

2010
Adriana Bungau Robert Cywinski

The European Spallation Source (ESS) is one of Europe’s biggest and most prestigious science projects. ESS will be the world’s most powerful next generation neutron spallation source for research with neutrons, providing a unique tool for studies of the atomic structure and dynamics of matter. In this paper we use GEANT4 simulations to investigate the effects of spallation target material and i...

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