Results 21 to 30 of about 56,964 (161)

Activity measurement of 55Fe using the liquid scintillation TDCR method

He jishu, 2023
Background55Fe is a low-energy radionuclide that is difficult to measure and decays to a ground state of 55Mn through pure electron capture (EC), accompanied by the emission of Auger electrons and low-energy X-ray.
LIU Haoran, ZHOU Qianqian, LIANG Juncheng, YUAN Daqing   +3 more
doaj   +1 more source

Optimization of Measurement Condition for Determination of Tritium in Air by Liquid Scintillation Counting

Yuanzineng kexue jishu, 2023
During the operation of the reactor, a large amount of tritium is released into the surrounding air through the waste gas treatment system and the plant ventilation system.
DONG Chuanjiang;GOU Jiayuan;PU Xianen;TANG Mengqi;WU Yao;WANG Yajie;WANG Lufeng;CHEN Lingzhu;LI Wanhao;LI Junjie;GAO Jing
doaj  

Universal calibration of a scintillation spectrometer with a NaI(Tl) detector when measuring 137Cs activity in counting samples of arbitrary density and volume

Радиационная гигиена, 2021
The article proposes an empirical method for constructing a universal calibration for a scintillation gamma spectrometer, which allows determining the activity and specific activity of 137Cs with an accuracy of no more than 15% in counting samples of ...
K. A. Sednev, V. A. Nekrasov, V. S. Repin   +2 more
doaj   +1 more source

222Rn Determination in Water and Brine Samples Us-ing Liquid Scintillation Spectrometry

Brazilian Journal of Radiation Sciences, 2019
Liquid scintillation spectrometry (LSC) is the most common technique used for 222Rn determination in environmental aqueous sample. In this study, the performance of water-miscible (Ultima Gold AB) and immiscible (Optiscint) liquid scintillation cocktails
Thiago César Oliveira, Roberto Pellacani Guedes Monteiro, Rubens Martins Moreira, Arno Heeren de Oliveira   +3 more
doaj   +1 more source

Basic Performance Evaluation of a Radiation Survey Meter That Uses a Plastic-Scintillation Sensor

Sensors
After the Fukushima nuclear power plant accident in 2011, many types of survey meters were used, including Geiger–Müller (GM) survey meters, which have long been used to measure β-rays.
Keisuke Yamamoto, Ryota Shindo, Saya Ohno, Satoe Konta, Rio Isobe, Yohei Inaba, Masatoshi Suzuki, Yoshio Hosoi, Koichi Chida   +8 more
doaj   +1 more source

Multiwell 14CO2-Capture Assay for Evaluation of Substrate Oxidation Rates of Cells in Culture

BioTechniques, 1998
14CO2 capture is commonly used to evaluate the cellular oxidation rate of respiratory substrates. A modification of the established 14CO2-capture method was developed that enables the use of cells in adherent culture and easy analysis of multiple samples
Cynthia L. Collins, Barrie P. Bode, Wiley W. Souba, Steve F. Abcouwer   +3 more
doaj   +1 more source

Assessment of Uptake and Biodistribution of Radiolabeled Cholesterol in Mice Using Gavaged Recombinant Triglyceride-rich Lipoprotein Particles (rTRL)

Bio-Protocol, 2018
The here described method can be used to estimate the uptake of orally provided cholesterol in mice. Briefly, mice are gavaged with radiolabeled cholesterol and 4 h later, organ distribution of the radiolabel is determined by liquid scintillation ...
Anna Worthmann, Clara John, Joerg Heeren
doaj   +1 more source

An Advanced Optimization Method to Minimize the Detection Limit of Liquid Scintillation Counter to Measure Low-Level Tritium Activity in Groundwater

Radiation, 2023
In arid regions, the tritium concentration in groundwater is typically very low and often falls below the minimum detectable activity (MDA) of the conventional liquid scintillation counter (LSC).
Al Mamun
doaj   +1 more source

Die Anwendung radiochemischer Analysenmethoden zur Bestimmung von Zink- und Calciumspuren in Gallium

CHIMIA, 1961
The method ot thermal neutron activation analysis has been utilized for the determination of calcium and zinc traces in metallic gallium. This method allows to measure amounts of calcium as low as one p.p.m.
Pierre Lerch, Leo Kreienbühl
doaj   +1 more source

From Sintering to Particle Discrimination: New Opportunities in Metal–Organic Frameworks Scintillators

Advanced Photonics Research, 2022
The characterization of a scintillating metal organic framework (MOF) is not straightforward, mainly due to the small size and low density of the material. In this context, we present herein a generic method to give an easy access to the determination of
Vincent Villemot, Nicolas Dufour, Sharvanee Mauree, Benoît Sabot, Guillaume H. V. Bertrand, Matthieu Hamel   +5 more
doaj   +1 more source