Results 1 to 10 of about 195,193 (266)

Depleted uranium in the air during the cleanup operation at Cape Arza [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
Cape Arza was contaminated with depleted uranium (DU) in the air strikes of NATO aeroplanes on May 30, 1999. The cleanup and decontamination of the site started in 2001. Here the results of air monitoring performed during the cleanup operations in Spring
Radenković Mirjana B.   +3 more
doaj   +1 more source

The Application of HPLC-FLD and NMR in the Monitoring of Therapy Efficacy in Alpha-Mannosidosis

open access: yesFrontiers in Bioscience-Landmark, 2023
Background: Alpha-mannosidosis is a rare lysosomal storage disorder, caused by decreased activity of α-D-mannosidase. This enzyme is involved in the hydrolysis of mannosidic linkages in N-linked oligosaccharides. Due to the mannosidase defect, undigested
Maroš Krchňák   +11 more
doaj   +1 more source

Assessment of 235U and 234U concentration in confiscated uranium samples by alpha- and gamma-ray spectrometry techniques

open access: yesRadiation Protection and Environment, 2020
Identification and assessment of the isotopic composition of confiscated uranium are of very much concern when it enters the public domain. This paper describes the methodology used for the estimation of 235U and 234U concentration in five uranium ...
Amar Dutt Pant   +3 more
doaj   +1 more source

Measurement of the insensitive surface layer thickness of a PIN photodiode based on alpha-particle spectrometry

open access: yesBrazilian Journal of Radiation Sciences, 2022
In this work, the insensitive layer thickness of a PIN photodiode (SFH206K - Osram) has been measured by varying the incident angle of a collimated monoenergetic alpha particle beam.
Josemary A. C. Gonçalves   +3 more
doaj   +1 more source

Alpha spectrometry applications with mass separated samples [PDF]

open access: yesApplied Radiation and Isotopes, 2016
(241)Am has been deposited using a novel technique that employs a commercial inductively coupled plasma mass spectrometer. This work presents results of high-resolution alpha spectrometry on the (241)Am samples using a small area passivated implanted planar silicon detector. We have also investigated the mass-based separation capability by developing a
M P, Dion   +4 more
openaire   +2 more sources

Radioassay facilities at the STFC Boulby Underground Laboratory

open access: yesFrontiers in Physics, 2023
For future low-background particle physics experiments, it will be essential to assay candidate detector materials using an array of assay techniques.
Paul R. Scovell   +5 more
doaj   +1 more source

Determination of Natural Radionuclides (Ra-226, Po-210, Ra-228 and K-40) and Cs-137 in Fish Consumed in the City of São Paulo

open access: yesBrazilian Journal of Radiation Sciences, 2022
The aim of the study was to determine the activity concentration of the natural radionuclides (226Ra, 210Po, 228Ra and 40K) and artificial radionuclide 137Cs in the muscle of the marine fish species most consumed in the city of São Paulo and to evaluate ...
Andressa Nery   +3 more
doaj   +1 more source

Identification of bile alcohols in urine from healthy humans.

open access: yesJournal of Lipid Research, 1984
Bile alcohols present in urine from healthy adults were studied. Urine was extracted with octadecylsilane-bonded silica gel, and a neutral fraction and a glucuronide fraction were isolated by ion exchange chromatography on piperidinohydroxypropyl ...
M Kuwabara   +4 more
doaj   +1 more source

Design by numerical simulation of an in situ alpha spectrometer operating at ambient air pressure [PDF]

open access: yesEPJ Web of Conferences, 2020
Alpha emitters are usually identified and quantified by alpha spectrometry measurements in a vacuum chamber performed in laboratory environments. This study shows that transuranic elements can be distinguished under ambient conditions using a grid ...
Degrelle D.   +5 more
doaj   +1 more source

Structure of the side chain of the C29 dicarboxylic bile acid occurring in infants with coprostanic acidemia.

open access: yesJournal of Lipid Research, 1982
The structure of the side chain of the 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-C29 dicarboxylic bile acid occurring in body fluids of infants with coprostanic acidemia was investigated by means of mass spectrometry and nuclear magnetic resonance ...
G Janssen, S Toppet, G Parmentier
doaj   +1 more source

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