Neutron Shielding Properties of Concrete and Ferro-Boron

Production of a novel high strength heavy concrete using tourmaline and galena for neutron and photon radiation shielding

Background: High density concrete is extensively used for efficient radiation attenuation in radiotherapy rooms and nuclear reactors. Over the past eight years, some efficient galena-based concrete samples for shielding X or gamma rays was produced. The goal of this study was to produce a novel high density concrete against neutron and photon radiations using tourmaline and galena. Materials an...

Neutron Spectra and Dosimetric Quantities Outside Typical Concrete Shielding of Synchrotron Facilities

Neutron energy spectra at high energy electron accelerators outside concrete shielding of various thicknesses (30 to 240 cm at 65-95 degrees) have been calculated at three electron energies (100 MeV, 1 and 10 GeV) and an optimum Cu target of 30.48 cm long and 5.08 cm in radius with the FLUKA Monte Carlo code. Dose quantities such as the protection quantity of Effective dose E and the operationa...

some properties of fuzzy hilbert spaces and norm of operators

in this thesis, at first we investigate the bounded inverse theorem on fuzzy normed linear spaces and study the set of all compact operators on these spaces. then we introduce the notions of fuzzy boundedness and investigate a new norm operators and the relationship between continuity and boundedness. and, we show that the space of all fuzzy bounded operators is complete. finally, we define...

Measurement of Neutron Flux in a Medical Compact cyclotron room with Boron-Containing water Self-Shielding

a) Department of Radiological Sciences, School of Health Sciences, Ibaraki Prefectural University of Health Sciences, Ami 4669-2, Ami-machi, Inashiki-gun, Ibaraki 300-0394, Japan b) MI clinic, Syouji 1-12-13, Toyonaka City, Osaka 560-0004, Japan c) National Institute of Public Health, Minami 2-3-6, Wako City, Saitama 351-0197, Japan d) Yokohama Rousai Hospital, Kodzukue-cho 3211, Kofuku-ku, Yok...

Testing of a New High-density Concrete as Neutron Shielding Material