Results 41 to 50 of about 205,732 (305)

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

Identification of Activation Isotopes in a CS-30 Cyclotron Vault

Sensors, 2022
A CS-30 cyclotron has been in operation at King Faisal Specialist Hospital and Research Center (KFSHRC) since 1982. The CS-30 cyclotron has been used to produce medical radioisotopes for positron emission tomography (PET) and single-photon emission ...
Alhussain A. Abuhoza, Hamoud A. Kassim, Ahmed A. Alghamdi, Faisal M. Alrumayan, Mehenna Arib, Ibrahim J. Aljammaz, Meshari ALQahtani   +6 more
doaj   +1 more source

The effect of flight line spacing on radioactivity inventory and spatial feature characteristics of airborne gamma-ray spectrometry data [PDF]

, 2008
Airborne Gamma Spectrometry (AGS) is well suited to the mapping of radioactivity in the environment. Flight parameters (e.g. speed and line spacing) directly affect the rate of area coverage, cost, and data quality of any survey.
A. J. Cresswell, Cresswell A. J., D. C. W. Sanderson, D. C. White, Darwin S. A., Dickson B. L., Dickson B. L., Dickson B. L., Flor W. J., Gray J., Green A. A., Honkamaa T., Hovgaard J., Hovgaard J., IAEA, IAEA, ICRU, Lyons L., Sanderson D. C. W, Sanderson D. C. W., Sanderson D. C. W., Sanderson D. C. W., Tyler A. N.   +22 more
core   +1 more source

Gamma spectrometry analysis and health risk assessment of edible liquids [PDF]

Kragujevac Journal of Science, 2023
Examination of radioactivity in edible liquids is very important because large amounts are taken into the body during the day. This scientific paper presents a comprehensive study on the gamma spectrometry analysis and health risk assessment of edible ...
Cimbaljević Željko M., Živković Milena P., Milošević Marko M., Krstić Dragana Ž., Miladinović Tatjana B., Marković Vladimir M., Stevanović Nenad D.   +6 more
doaj  

Radiation protection considerations on radon and building materials radioactivity in Near Zero Energy Buildings [PDF]

, 2017
Recent updates of the E.U. Basic Safety Standards, stated in the Council Directive 2013/59/EURATOM, are focusing on risks related to radon gas concentration inside dwellings and working places, as well as radioactivity of building materials.
Franci, Daniele, Gandolfo, Giada, Lepore, Luigi, Pepperosa, Andrea, Remetti, Romolo   +4 more
core   +1 more source

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns, Jaclyn S. Long, Sergio Lilla, Kelly Hodge, Marcus J. G. W. Ladds, Colin Nixon, Paula Fernández‐Palanca, Sara Zanivan, Pilar Acedo, Stephen P. Pereira, Kevin M. Ryan   +10 more
wiley   +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

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

EMERGENCY PREPAREDNESS OF GAMMA SPECTROMETRY LABORATORIES

Radiation Protection Dosimetry, 2019
Abstract Currently, the territorial Radiation Monitoring Network (RMN) of the Czech Republic consists of seven laboratories equipped with gamma spectrometry High Purity Germanium (HPGe) detectors. From 2007 to 2018, five emergency exercises were carried out to test the sample throughput of these facilities and their staff.
Michal, Sloboda, Helena, Malá, Petr, Rulík, Věra, Bečková   +3 more
openaire   +2 more sources

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
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