Optimization of reactive powder concrete by means of barite aggregate for both neutrons and gamma rays

Chemical corrosion on gamma-ray attenuation properties of barite concrete

osting by E Abstract The variation of photon attenuation coefficient on the chemical media has been investigated. For this purposes the linear attenuations of barite concrete have been measured at 662, 1773 and 1332 keV before leaving the chemical media and following a 6 month period. The linear attenuation coefficients have been measured using gamma spectrometer that contains a NaI(Tl) detecto...

study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Trabecular bone changes induced by fast neutrons versus gamma rays in mice

Background: The trabecular bone changes in the tibia of C3H/HeN mice were measured 12 weeks after whole body irradiation with various doses of fast neutrons (0-2.4 Gy) or 137Cs-generated gamma-rays (0-6 Gy). Materials and Methods: Serum calcium, phosphorus, estradiol concentration and alkaline phosphatase activity were measured. Tibiae were anal...

- . - , Measurement of Absorbed Dose of Neutrons , and of Mixtures of Neutrons and Gamma Rays

Observation of thundercloud-related gamma rays and neutrons in Tibet

H. Tsuchiya,* K. Hibino, K. Kawata, N. Hotta, N. Tateyama, M. Ohnishi, M. Takita, D. Chen, J. Huang, M. Miyasaka, I. Kondo, E. Takahashi, S. Shimoda, Y. Yamada, H. Lu, J. L. Zhang, X. X. Yu, Y.H. Tan, S.M. Nie, K. Munakata, T. Enoto, and K. Makishima High-Energy Astrophysics Laboratory, Riken, 2-1, Hirosawa, Wako, Saitama 351-0198, Japan Faculty of Engineering, Kanagawa University, Yokohama 221...