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Turkoglu Danyal Downing R. Gregory Chen Wangchun Şahin Dağıstan Cook Jeremy 《Journal of Radioanalytical and Nuclear Chemistry》2017,311(2):1243-1249
Journal of Radioanalytical and Nuclear Chemistry - Prompt gamma-ray activation analysis facilities with high neutron currents (≥109 s−1) generate triton-induced fast neutrons from... 相似文献
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Abdolmajid Bayandori Moghaddam Ali Mohammadi Somaye Mohammadi Danyal Rayeji Rassoul Dinarvand Mansoureh Baghi Roderick B. Walker 《Mikrochimica acta》2010,171(3-4):377-384
The oxidation of acetaminophen was studied at a glassy carbon electrode modified with multi-walled carbon nanotubes and a graphite paste. Cyclic voltammety, differential pulse voltammetry and square wave voltammetry at various pH values, scan rates, and the effect of the ratio of nanotubes to graphite were investigated in order to optimize the parameters for the determination of acetaminophen. Square wave voltammetry is the most appropriate technique in giving a characteristic peak at 0.52 V at pH 5. The porous nanostructure of the electrode improves the surface area which results in an increase in the peak current. The voltammetric response is linear in the range between 75 and 2000 ng.mL?1, with standard deviations between 0.25 and 7.8%, and a limit of detection of 25 ng.mL?1. The method has been successfully applied to the analysis of acetaminophen in tablets and biological fluids. 相似文献
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Hanbing Wang Weiqiang Wen Zhongkui Huang Dacheng Zhang Dongyang Chen Dongmei Zhao Xiaolong Zhu Danyal Winters Michael Bussmann Xinwen Ma 《X射线光谱测定》2020,49(1):138-142
Laser cooling and precision laser spectroscopy experiments of relativistic highly charged ions are being prepared at the heavy-ion experimental cooler storage ring (CSRe). Optical detection of fluorescence photons, emitted from the laser-excited ions, is extremely important for both powerful methods. In this paper, we briefly report on the current status of the existing optical detectors and also on their performance during laser cooling of relativistic Li-like 16O5+ ion beams at the CSRe. In addition, we introduce the designs for our new optical detection systems, which have much higher photon detection efficiencies and can cover a much broader wavelength range. These detector systems will be used for the upcoming laser spectroscopy experiment of Li-like 16O5+ ions, as well as for future laser spectroscopy experiments with other highly charged ions. 相似文献
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Danyal Turkoglu Joshua Burke Radoslaw Lewandowski Lei R. Cao 《Journal of Radioanalytical and Nuclear Chemistry》2012,291(2):321-327
A thermal neutron beam facility has been designed and implemented at the Ohio State University Research Reactor. A project
is underway to construct a large vacuum chamber such that the facility could have neutron depth profiling and neutron radiography
capabilities as intended. The neutron beam is extracted from the reactor through a neutron collimator emplaced in Beam Port
#2. The neutron spectrum entering the neutron collimator was unfolded from foil activation analysis results and also simulated
with a full reactor core model in the MCNP Monte Carlo code. The neutron collimator uses polycrystalline bismuth as a gamma
ray filter and single-crystal sapphire as a fast neutron filter. The beam is defined by multiple 3.0 cm diameter apertures
made of borated aluminum. Characterization of the beam was performed using foil activation to find the flux and a low-budget
neutron imaging apparatus to see the beam profile. The modulation transfer function was calculated to offer insight into the
resolution of the imaging system and the collimation of the beam. The neutron collimator delivers the filtered thermal neutron
beam with a ~4 cm diameter and a thermal equivalent flux of (1.27 ± 0.03) × 107 n/(cm2s) at 450 kW power at the end of the collimator. 相似文献
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