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Evaluation of the microscopic dose enhancement for nanoparticle-enhanced Auger therapy
Physics in Medicine and Biology, 2016The aim of this study is to investigate the dosimetric characteristics of nanoparticle-enhanced Auger therapy. Monte Carlo (MC) simulations were performed to assess electron energy spectra and dose enhancement distributions around a nanoparticle. In the simulations, two types of nanoparticle structures were considered: nanoshell and nanosphere, both of
Wonmo, Sung +2 more
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High opioid doses inhibit whereas low doses enhance neuritogenesis in PC12 cells
Developmental Brain Research, 1996Exposure to opiates affects brain development, cell growth as well as in vitro cell differentiation [33,34]. Perinatal treatment with morphine has been reported to impair neuronal plasticity after neonatal lesion with 5,7-dihydroxytryptamine (5,7-DHT) [8]. This study has investigated the use of mu, delta and kappa opioid receptor ligands to examine the
B. Tenconi +3 more
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Electron collision dose enhancement
IEEE Transactions on Nuclear Science, 2000High-Z layers in IC packages and on IC die slow and reflect incident electron fluxes much more effectively than low-Z layers. In typical nuclear and space environments, high-Z solder bonds can enhance the electron collision dose by up to 85%, and Au-plated lids can enhance it by up to 50%.
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IEEE Transactions on Nuclear Science, 1978
A very simple model for the estimation of the x-ray dose enhancement at material interfaces is developed. The model is verified through comparison of estimates with Monte Carlo calculations. Additional Monte Carlo calculations are presented for dose enhancement for several conductor/polyethylene interfaces, for a gold/silicon interface with continuous ...
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A very simple model for the estimation of the x-ray dose enhancement at material interfaces is developed. The model is verified through comparison of estimates with Monte Carlo calculations. Additional Monte Carlo calculations are presented for dose enhancement for several conductor/polyethylene interfaces, for a gold/silicon interface with continuous ...
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Dose Enhancement Effects in Semiconductor Devices
IEEE Transactions on Nuclear Science, 1982This paper presents engineering factors for estimating the effects of dose enhancement on semiconductor devices. Included are a variety of photon spectra, device structures and radiation responses mechanisms. These data can be used to predict transient and permanent effects caused by various radiation environments and to interpret measurements obtained
D. M. Long, D. G. Millward, J. Wallace
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Neutron-Induced Dose Enhancement in Tantalum
IEEE Transactions on Nuclear Science, 1975Local dose enhancement caused by neutron capture in tantalum devices has been predicted but not previously measured. An experiment is reported in which the dose due to conversion electrons and sub-MeV photons resulting from neutron capture in Ta is compared to the dose from high-energy photons. For measurements on a thin Ta foil using a silicon surface
N. A. Lurie +5 more
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Enhanced Low Dose Rate Sensitivity Analysis
2014 IEEE Radiation Effects Data Workshop (REDW), 2014During a series of experiments, different components manufactured on bipolar technology have been irradiated at two different dose rates (36 rd(Si)/h and 360rd(Si)/h) and on two biasing conditions (ON/OFF). With the aim of identifying different factors of degradation, a set of different functions included on almost every space system has been ...
David Nunez +4 more
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High-Dose Atorvastatin Enhances Impaired Cerebral Vasomotor Reactivity
Journal of Stroke and Cerebrovascular Diseases, 2012The influence of statin therapy on cerebral vasomotor function has not been fully characterized. We report the effects of high-dose atorvastatin therapy on cerebral vasomotor reactivity (VMR) in patients with controlled hypertension and dyslipidemia. We prospectively enrolled 36 patients with controlled hypertension and a low-density lipoprotein (LDL ...
Alejandro, Forteza +6 more
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Dose optimization of contrast-enhanced carotid MR angiography
European Radiology, 2005The purpose of this work was to compare the diagnostic performance of a single-contrast or a double-contrast dose of carotid contrast-enhanced MR angiography (MRA). One-hundred nineteen patients (mean age 65+/-14.4 years) underwent carotid contrast-enhanced MRA with a standardized protocol (repetition time/echo 3.73 ms/1.38 ms, flip-angle 25 degrees ...
Unterweger, M +6 more
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Dose enhancement by various nanoparticles in prostate brachytherapy
Australasian Physical & Engineering Sciences in Medicine, 2013The aim of this Monte Carlo study is to calculate dose enhancement in tumours by various nanoparticles in prostate brachytherapy using (125)I interstitial implants. ProstaSeed (125)I brachytherapy source was simulated using MCNPX Monte Carlo code. Dose rate constant, radial dose function and anisotropy function values were calculated and compared with ...
Mahdi, Ghorbani +3 more
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