Results 61 to 70 of about 75,506 (290)

Organic and inorganic carbon-14 in discharges of JSC Institute of Nuclear Materials

Nuclear Engineering and Technology, 2023
The aim of the study is the activity concentration measurements of organic and inorganic 14C in the discharges of JSC “Institute of Nuclear Materials” (INM). In INM the research water-water reactor “IVV-2M” is operating.
E.I. Nazarov, A.A. Ekidin, A.V. Kruzhalov, M.E. Vasyanovich, A.I. Lysikov, P.N. Kalinkin, I.M. Russkikh   +6 more
doaj  

Characterization of radioactive aerosols in Tehran research reactor containment [PDF]

Nuclear Technology and Radiation Protection, 2015
The objectives of this research were to determine the levels of radioactivity in the Tehran research reactor containment and to investigate the mass-size distribution, composition, and concentration of radionuclides during operation of the ...
Moradi Gholamreza, Sadighzadeh Asghar, Yarahmadi Rasoul, Omidi Leila, Farshad Ali Asghar, Rezaei Fard Behzad   +5 more
doaj   +1 more source

Bio‐Based Thermoplastic Room Temperature Phosphorescent Materials with Closed‐Loop Recyclability

Advanced Science, EarlyView.
Using the intermolecular hydrogen bonding interactions between thioctic acid and cellulose, the RTP material Poly(TA)/Cell, is developed through thermal polymerization. Attributed to the thermoplastic properties, the as‐obtained Poly(TA)/Cell can be thermally molded into flexible shapes with uncompromised RTP performance.
Yuanyuan Qian, Yingxiang Zhai, Meng Li, Yinping Qin, Liang Lv, Tony D. James, Lidong Wang, Zhijun Chen   +7 more
wiley   +1 more source

Mass spectrometry in ocular drug research

Mass Spectrometry Reviews, EarlyView., 2023
Abstract Mass spectrometry (MS) has been proven as an excellent tool in ocular drug research allowing analyzes from small samples and low concentrations. This review begins with a short introduction to eye physiology and ocular pharmacokinetics and the relevance of advancing ophthalmic treatments.
Eva M. del Amo, Kati‐Sisko Vellonen, Arto Urtti, Tetsuya Terasaki, Anam Hammid, Paavo Honkakoski, Seppo Auriola   +6 more
wiley   +1 more source

Study of Micro Pixel Photon Counters for a high granularity scintillator-based hadron calorimeter [PDF]

arXiv, 2007
A new Geiger mode avalanche photodiode, the Micro Pixel Photon Counter (MPPC), was recently released by Hamamatsu. It has a high photo-detection efficiency in the 420 nm spectral region. This product can represent an elegant candidate for the design of a high granularity scintillator based hadron calorimeter for the International Linear Collider.
arxiv  

A Model for the Secondary Scintillation Pulse Shape from a Gas Proportional Scintillation Counter [PDF]

, 2015
Proportional scintillation counters (PSCs), both single- and dual-phase, can measure the scintillation (S1) and ionization (S2) channels from particle interactions within the detector volume. The signal obtained from these detectors depends first on the physics of the medium (the initial scintillation and ionization), and second how the physics of the ...
arxiv   +1 more source

Development of Carbon‐11 Labeled Pyrimidine Derivatives as Novel Positron Emission Tomography (PET) Agents Enabling Brain Sigma‐1 Receptor Imaging

Advanced Science, EarlyView.
Novel carbon‐11 labeled pyrimidine derivatives are developed as PET imaging probes for visualizing sigma‐1 receptors in the brain. [11C]CNY‐01 demonstrates superior brain uptake and binding specificity in both rodents and non‐human primates. The study reveals decreased sigma‐1 receptor expression in Alzheimer's disease, offering a promising tool for ...
Ping Bai, Ashley Gomm, Chi‐Hyeon Yoo, Prasenjit Mondal, Fleur Marie Lobo, Hui Meng, Yanting Zhou, Weiyao Xie, Hsiao‐Ying Wey, Rudolph E. Tanzi, Can Zhang, Changning Wang, Yu Lan   +12 more
wiley   +1 more source

Tritium radioactivity estimation in cement mortar by heat-extraction and liquid scintillation counting

Nuclear Engineering and Technology, 2021
Tritium extraction from radioactively contaminated cement mortar samples was performed using heating and liquid scintillation counting methods. Tritiated water molecules (HTO) can be present in contaminated water along with water molecules (H2O).
Ki Joon Kang, Jun Woo Bae, Hee Reyoung Kim   +2 more
doaj  

Measuring Auxin Transport Capacity in Seedling Roots of Medicago truncatula

Bio-Protocol, 2016
Measurement of auxin transport capacity provides quantitative data on the physiological machinery involved in auxin transport within plants. This technique is easy to perform and gives quick results. Radiolabelled auxin (indole-3-acetic-acid) is fed into
Jason Ng, Ulrike Mathesius
doaj   +1 more source

Development of High Pressure Xe Scintillation Proportional Counter for Experiments in "Low-Background" Physics [PDF]

arXiv, 1997
Characteristics of a scintillation proportional counter with WLS fiber optics readout is described. The possibility of detection of the proportional scintillation signal produced by the single electron of primary ionization is shown. The counter can be applied for the experiments in "low--background" physics which require a low energy threshold.
arxiv