نتایج جستجو برای: γ radiation

تعداد نتایج: 309140  

2003
Khalil Arshak Olga Korostynska Farah Fahim

Thick films of Nickel oxide (NiO) in the form of pn-junctions and planar structures with interdigitated electrodes were investigated for γ-radiation dosimetry purposes. Samples were fabricated using the thick film screen-printing technique. All devices were exposed to a disc-type Cs source with an activity of 370 kBq. They showed an increase in the values of current with the increase in radiati...

Journal: :Thermochimica Acta 2023

Decomposition temperatures of δ-MoN and ε-Fe2N synthesized with flowing NH3 gas under concentrated solar radiation heating were evaluated by Differential Scanning Calorimetry (DSC) in Argon (Ar) environment. The measured decomposition temperature dependent on the synthesis conditions, particularly either or N2 flow rate at temperature. Sample containing showed two exothermic peaks around 680 90...

2015
Shinya Masuda Tsubasa Hisamatsu Daiki Seko Yoshishige Urata Shinji Goto Tao-Sheng Li Yusuke Ono

Exposure to high levels of genotoxic stress, such as high-dose ionizing radiation, increases both cancer and noncancer risks. However, it remains debatable whether low-dose ionizing radiation reduces cellular function, or rather induces hormetic health benefits. Here, we investigated the effects of total-body γ-ray radiation on muscle stem cells, called satellite cells. Adult C57BL/6 mice were ...

Journal: :Symposium - International Astronomical Union 1970

1994
M. Sakuda Y. Kurihara

If the neutrino has a finite mass and a magnetic moment it would produce transition radiation when crossing the interface between two media of which plasma frequencies are ω 1 and ω 2 (ω 1 ≫ ω 2). We found that the probability of transition radiation is larger by an order of magnitude using the quantum theory than that recently reported by one of us using classical electrodynam-ics, and that th...

2005
K. Noguchi E. Liang K. Nishimura

— We study the radiation damping effect on the relativistic acceleration of electron-positron plasmas with two-and-half–dimensional particle-incell(PIC) simulation. Particles are accelerated by Poynting flux via the diamagnetic relativistic pulse accelerator(DRPA), and decelerated by the self-consistently solved radiation damping force. With Ωce/ωpe ≥ 10, the Lorentz factor of the highest energ...

2016
Junsheng Wang Zhiqiang Fan Yile Zhao Younan Song Hui Chu Wendong Song Yongxin Song Xinxiang Pan Yeqing Sun Dongqing Li

Space radiation brings uneven damages to cells. The detection of the distribution of cell damage plays a very important role in radiation medicine and the related research. In this paper, a new hand-held microfluidic flow cytometer was developed to evaluate the degree of radiation damage of cells. The device we propose overcomes the shortcomings (e.g., large volume and high cost) of commercial ...

2016
Laura A. Bannister Rebecca R. Mantha Yvonne Devantier Eugenia S. Petoukhov Chantal L. A. Brideau Mandy L. Serran Dmitry Y. Klokov

Enhanced cellular DNA repair efficiency and suppression of genomic instability have been proposed as mechanisms underlying radio-adaptive responses following low-dose radiation exposures. We previously showed that low-dose γ irradiation does not generate radio-adaptation by lowering radiation-induced cytogenetic damage in mouse spleen. Since radiation may exert tissue-specific effects, we exten...

2017
Farideh Koohian Ahmad Shanei Daryoush Shahbazi-Gahrouei Seyed Hossein Hejazi Mohammad-Taghi Moradi

In this study, we evaluated whether the protective potential of resveratrol (RSV; 3,5,4'-trihydroxy-trans-stilbene) against γ-radiation caused damages in peripheral blood lymphocyte of mice. Resveratrol as a polyphenolic compound scavenges free radicals. Various doses of RSV were administered intraperitoneally 2 hours to adult male mice before a single dose of whole-body γ-irradiation (2 Gy). T...

2001
William H. Lee

We show the results of dynamical simulations of the coalescence of black hole– neutron star binaries. We use a Newtonian Smooth Particle Hydrodynamics code, and include the effects of gravitational radiation back reaction with the quadrupole approximation for point masses, and compute the gravitational radiation waveforms. We assume a polytropic equation of state determines the structure of the...

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