Results 31 to 40 of about 203,893 (206)

Insights into Gamma-Ray Spectrometry of Building Stones in the North Temple of the Great Ball Court, Archaeological Zone of Chichen Itza, Mexico

Buildings
Non-destructive tests are especially useful for the assessment of building stones and their deterioration in built cultural heritage. Gamma-ray spectrometry is a non-destructive test that has not been applied extensively in these types of constructions ...
Alejandro Méndez-Gaona, Vsevolod Yutsis, Rubén Alfonso López-Doncel, Claudia Araceli García-Solís, Alfredo Aguillón-Robles   +4 more
doaj   +1 more source

Pile-up correction for coincidence counting using a CAEN 1724 digitizer

Brazilian Journal of Radiation Sciences, 2019
In conventional gamma-ray spectrometry, the probability of pile-up effects is considered to be proportional to the dead-time, and is usually neglected for low dead-times (below 4-5%).
Guilherme Soares Zahn, Iberê Souza Ribeiro Jr, Frederico Antonio Genezini   +2 more
doaj   +1 more source

The resonance triplet at E_alpha = 4.5 MeV in the 40Ca(alpha,gamma)44Ti reaction

, 2013
The 40Ca(alpha,gamma)44Ti reaction is believed to be the main production channel for the radioactive nuclide 44Ti in core-collapse supernovae. Radiation from decaying 44Ti has been observed so far for two supernova remnants, and a precise knowledge of ...
Akhmadaliev, Shavkat, Anders, Michael, Bemmerer, Daniel, Boretzky, Konstanze, Caciolli, Antonio, Degering, Detlev, Dietz, Mirco, Dressler, Rugard, Elekes, Zoltán, Fülöp, Zsolt, Gyürky, György, Hannaske, Roland, Junghans, Arnd R., Marta, Michele, Menzel, Marie-Luise, Munnik, Frans, Schmidt, Konrad, Schumann, Dorothea, Schwengner, Ronald, Szücs, Tamás, Wagner, Andreas, Yakorev, Dmitry, Zuber, Kai   +22 more
core   +1 more source

New shield for gamma-ray spectrometry [PDF]

, 1969
Gamma-ray shield that can be evacuated, refilled with a clean gas, and pressurized for exclusion of airborne radioactive contaminants effectively lowers background noise.
Brar, S. S., Gustafson, P. F., Nelson, D. M.   +2 more
core   +1 more source

Counting efficiency in gamma-ray spectrometry with different sample volumes for the same geometry

Brazilian Journal of Radiation Sciences, 2022
The aim of this study is to determine an easy and fast method to calculate efficiencies in different volumes, in the same counting geometry, for gamma-ray spectrometry technique.
Marcelo Bessa Nisti, Marcelo Francis Máduar, Sandra Regina Damatto, Marcos Medrado de Alencar   +3 more
doaj   +1 more source

Review of Past Nuclear Accidents: Source Terms and Recorded Gamma-Ray Spectra [PDF]

, 1997
Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents.
Allyson, J.D., Cresswell, A., Department of the Environment: Radioactive Substances Division, McConville, P., Sanderson, D.C.W.   +4 more
core  

Gamma-ray line measurements from supernova explosions

, 2017
Gamma ray lines are expected to be emitted as part of the afterglow of supernova explosions, because radioactive decay of freshly synthesised nuclei occurs.
Diehl, Roland
core   +1 more source

Determination of gamma-hydroxybutyric acid in dried blood spots using a simple GC-MS method with direct 'on spot' derivatization [PDF]

, 2010
The objective of this study was the development of an accurate and sensitive method for the determination of gamma-hydroxybutyric acid (GHB) in dried whole blood samples using a GC-MS method.
Ingels, Ann-Sofie, Lambert, Willy, Stove, Christophe   +2 more
core   +1 more source

Advances in Materials Science and Engineering Assessment of Gamma Radiation Hazards Related to Geologic Materials: Comparison of Results by Field Gamma Spectrometry and Laboratory Methods

Advances in Materials Science and Engineering, 2018
Geologic materials are a potential source of external gamma radiation in buildings due to the presence of radioisotopes (40K and isotopes from U and Th decay families).
Miguel Couto, Jorge Sanjurjo-Sánchez, Carlos Alves   +2 more
doaj   +1 more source

Concentrations of natural radionuclides in imported zirconium minerals [PDF]

Nuclear Technology and Radiation Protection, 2011
The natural radioactivity in imported zircon samples used as glaze for ceramic tiles in the ceramics industry has been presented in this paper. The measurements were made by gamma spectrometry with a high purity germanium detector.
Janković Marija M., Todorović Dragana J.   +1 more
doaj   +1 more source