Results 251 to 260 of about 205,238 (307)

Unveiling Earthquakes: Thermoluminescence Signal Resetting of Laboratory-Produced Fault Gouge

open access: yes
Heydari M   +7 more
europepmc   +1 more source

Traceability in gamma-ray spectrometry

Applied Radiation and Isotopes, 2010
The new edition of the International vocabulary of metrology-basic and general concepts and associated terms (VIM) defines metrological traceability in a different way than was defined in the previous edition. The reference to an "unbroken chain of comparisons" is replaced by a "chain of calibrations." Calibrations, unlike comparisons, render possible ...
D, Glavic-Cindro, M, Korun
openaire   +2 more sources

Low level gamma spectrometry by beta–gamma coincidence

Applied Radiation and Isotopes, 2000
A beta-gamma coincidence system consisting of a 2pi plastic beta detector and a Ge(Li) detector, is described. Such a system allows for a drastic reduction of background (approximately 70 times) as well as of Minimum Detectable Activity (approximately 7 times). An integral background (50-1500 keV) of less than 0.1 cps is obtained. The difficulty of the
, Luca, , De Felice P, , Tanase
openaire   +2 more sources

Gamma-Ray Spectrometry

2004
The basic equipment for detection of prompt gamma rays is the gamma-ray spectrometer. The main component is the detector which converts the energy of the gamma ray to an electronic signal. This signal is amplified, shaped, digitized and stored in a histogram that makes up a spectrum of gamma peaks.
Tamás Belgya, Zsolt Révay
openaire   +1 more source

Gamma-Ray Spectrometry

1975
Gamma-ray spectrometry by the method of pulse-height analysis makes possible the direct determination of individual radionuclides in a gamma-emitting sample. Such determinations are possible because the method provides a basis for the identification of specific nuclear transitions, and these, in turn, are characteristic of specific radionuclides.
openaire   +1 more source

Underwater gamma-ray spectrometry

2008
Publisher Summary This chapter discusses underwater gamma-ray (γ) spectrometry. As underwater γ-ray spectrometry is recently reviewed, the chapter presents several results obtained by the International Atomic Energy Agency's Marine Environmental Laboratory (IAEA-MEL).
Pavel P. Povinec   +2 more
openaire   +1 more source

Principles of UV–gamma coincidence spectrometry

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2012
Abstract With conventional methods, samples containing alpha-particle-emitting nuclides are difficult to detect and characterize from distances greater than a few centimetres. One promising technique is to observe alpha particles indirectly by utilizing alpha-induced ultraviolet (UV) photons.
Sakari Ihantola   +4 more
openaire   +1 more source

Ge(Li) gamma-ray spectrometry as a pilot for NaI(Tl) gamma-ray spectrometry

Talanta, 1968
Lithium-drifted germanium semiconductor detectors give much better resolution than do thallium-activated sodium iodide detectors, but much lower sensitivity. They can often advantageously be used in conjunction with NaI(Tl) detectors, to show whether corrections must be applied for activities other than the one to be measured and to provide the ...
V P, Guinn, F M, Graber, D M, Fleishman
openaire   +2 more sources

Gamma absorptiometric technique employing high resolution gamma spectrometry

The International Journal of Applied Radiation and Isotopes, 1985
Abstract Gamma absorptiometric method was used to determined uranium and thorium concentration in both aqueous and organic solutions. The complete computer-based γ-spectroscopy system includes a coaxial Ge(Li) detector used to measure the absorption of γ-rays from 241 Am through the solutions.
A. Tugsavul   +5 more
openaire   +1 more source

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