Results 11 to 20 of about 1,946 (206)

Determination of 55Fe and 63Ni in Pb–Bi by Radiochemical Separation Method

open access: yesScience and Technology of Nuclear Installations
This paper introduces a simple and rapid separation method for the determination of 55Fe and 63Ni in lead–bismuth alloys. This method is based on chemical precipitation and solid-phase extraction chromatography techniques, which can separate and purify ...
Yaqing Ren   +6 more
doaj   +3 more sources

Effect of Scintillation Cocktail and Quenching Calibration Method on Measurement of 55Fe by LSC

open access: yesHe huaxue yu fangshe huaxue
In order to optimize the measurement conditions of 55Fe by liquid scintillation counting, the effect of three kinds of commercial scintillation cocktail and two efficiency correction methods on LSC measurements of 55Fe was tested.
MA Li-na   +4 more
doaj   +2 more sources

Gallium arsenide 55Fe X-ray-photovoltaic battery [PDF]

open access: yesJournal of Applied Physics, 2016
The effects of temperature on the key parameters of a prototype GaAs 55Fe radioisotope X-ray microbattery were studied over the temperature range of −20 °C to 70 °C. A p-i-n GaAs structure was used to collect the photons from a 254 Bq 55Fe radioisotope X-ray source. Experimental results showed that the open circuit voltage and the short circuit current
Butera, S, Lioliou, G, Barnett, A M
core   +3 more sources

The 55Fe half-life measured with a pressurised proportional counter

open access: yesApplied Radiation and Isotopes, 2019
The half-life of 55Fe has been measured accurately by following the decay curve of three sources with a large pressurised proportional counter. An argon(90%)-methane(10%) mixture was used as counter gas, at atmospheric pressure (∼1 × 105 Pa) and at enhanced pressures of 5 × 105 Pa and 8 × 105 Pa (for 1 source), respectively. The first measurements were
S, Pommé, H, Stroh, R, Van Ammel
openaire   +3 more sources

Temperature effects on an InGaP (GaInP) 55Fe X-ray photovoltaic cell

open access: yesScientific Reports, 2017
This paper investigates the effects of temperature on an InGaP (GaInP) 55Fe X-ray photovoltaic cell prototype for a radioisotope microbattery (also called a nuclear microbattery).
S. Butera   +3 more
doaj   +2 more sources

Measurement of 55Fe in reactor samples by an intrinsic Germanium detector [PDF]

open access: yesInternational Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1988
Determination of “Fe in reactor samples requires some care because of the low-energy x-rays emitted following decay by electron capture and the presence of “Fe and other possible y-ray emitting contaminants in radiochemical separations. This problem was dealt with by radiochemical separation of Fe followed by use of an intrinsic germanium detector ...
Martin, James E.   +2 more
openaire   +3 more sources

Identification of New Key Players for Ferrous Iron Export in the Asymmetric Inner Gate of Human Ferroportin 1. [PDF]

open access: yesFASEB J
Ferroportin 1 is an iron exporter belonging to the Major Facilitator Superfamily. Its unusual intracellular gate is formed by asymmetric networks of non‐covalent bonds. We analyzed these networks using Molecular Dynamics simulations and experimental tests and identified novel amino acids as key players in inter‐lobe connections.
Le Tertre M   +8 more
europepmc   +2 more sources

The cytochrome oxidase defect in ISC-depleted yeast is caused by impaired iron-sulfur cluster maturation of the mitoribosome assembly factor Rsm22. [PDF]

open access: yesFEBS Lett
The yeast mitoribosome assembly factor Rsm22 contains a [4Fe‐4S] cluster that is matured by the mitochondrial iron–sulfur cluster assembly (ISC) machinery. Defects in ISC components result in impaired mitochondrial protein synthesis due to a mitoribosome assembly defect.
Mühlenhoff U   +4 more
europepmc   +2 more sources

Activity measurement of 55Fe using the liquid scintillation TDCR method

open access: yesHe 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   +3 more
doaj   +1 more source

Development of 3H, 14C, 41Ca, 55Fe, 63Ni radiochemical analysis methods in activated concrete samples [PDF]

open access: yes, 2022
Development of 3H, 14C, 41Ca, 55Fe and 63Ni radiochemical analysis methods were carried out independently by two laboratories using both inactivate and activated concrete samples.
Salminen-Paatero, Susanna   +1 more
core   +1 more source

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