Results 31 to 40 of about 74,608 (308)

Non-destructive technique to verify clearance of pipes [PDF]

Nuclear Technology and Radiation Protection, 2010
A semi-empirical, non-destructive technique to evaluate the activity of gamma ray emitters in contaminated pipes is discussed. The technique is based on in-situ measurements by a portable NaI gamma ray spectrometer.
Savidou Anastasia, Stamatelatos Ion E.
doaj   +1 more source

Radioisotopic purity and imaging properties of cyclotron-produced 99mTc using direct 100Mo(p,2n) reaction [PDF]

, 2018
Evaluation of the radioisotopic purity of technetium-99m (99mTc) produced in GBq amounts by proton bombardment of enriched molibdenum-100 (100Mo) metallic targets at low proton energies (i.e. within 15\u201320 MeV) is conducted.
Bello, M., Boschi, A., Cicoria, G., De Nardo, L., Di Domenico, G., Duatti, A., Esposito, J., Groppi, F., Loriggiola, M., Manenti, S., Marengo, M., Martini, P., Melendez-Alafort, L., Mou, L., Pasquali, M., Pupillo, G., Rosato, A., Rossi-Alvarez, C., Salvini, A., Selva, A., Strada, L., Taibi, A., Uccelli, L., Uzunov, N. M., Zagni, F.   +24 more
core   +2 more sources

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

Material screening and selection for XENON100 [PDF]

, 2011
Results of the extensive radioactivity screening campaign to identify materials for the construction of XENON100 are reported. This Dark Matter search experiment is operated underground at Laboratori Nazionali del Gran Sasso (LNGS), Italy.
A. Askin, A. Behrens, A. Kish, A. Teymourian, A.C.C. Ribeiro, A.D. Ferella, A.J. Melgarejo Fernandez, Agostinelli, Angle, Aprile, Aprile, Aprile, Arpesella, B. Choi, Baudis, Birkedal-Hansen, Bolozdynya, Bottino, C. Weinheimer, C.W. Lam, Cheng, Clowe, D. Cline, D. Thers, E. Aprile, E. Brown, E. Pantic, E. Tziaferi, Ellis, F. Arneodo, Freedman, G. Plante, Gaitskell, H. Wang, Haffke, Heisel, Heusser, Heusser, Hurtgen, J. Lamblin, J.A.M. Lopes, J.M.F. dos Santos, J.M.R. Cardoso, K. Arisaka, K. Bokeloh, K. Ni, K.E. Lim, K.L. Giboni, Knoll, L. Baudis, M. Laubenstein, M. Schumann, Maneschg, Nisi, Norman, P. Shagin, R. Santorelli, R.F. Lang, S. Fattori, S. Nisi, S.E.A. Orrigo, T. Marrodán Undagoitia, U. Oberlack, Y. Mei, Yamashita   +64 more
core   +3 more sources

Source and LVis based coincidence summing correction in HPGe gamma-ray spectrometry

Nuclear Engineering and Technology, 2022
The activity of gamma-ray emitting nuclides is calculated assuming that each gamma-ray is detected individually; thus, the magnitude of the coincidence summing signal must be considered during activity calculations.
Jieun Lee, HyoJin Kim, Yong Uk Kye, Dong Yeon Lee, Jeung Kee Kim, Wol Soon Jo, Yeong-Rok Kang   +6 more
doaj   +1 more source

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

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

Online spectral unmixing in gamma-ray spectrometry

Applied Radiation and Isotopes, 2023
We introduced in a previous paper a time-dependent full-spectrum analysis algorithm speeding up the estimation of the activity of the radionuclides present in a sample. In this paper, we present a new version of the algorithm allowing online estimation.
Malfrait, Paul, Bobin, Jérôme, de Vismes Ott, Anne   +2 more
openaire   +3 more sources

A novel barium oxide-based Iraqi sand glass to attenuate the low gamma-ray energies: Fabrication, mechanical, and radiation protection capacity evaluation

Nuclear Engineering and Technology, 2022
In the present work, untreated Iraqi sand with grain sizes varied between 100 and 200 μm was used to produce a colored glass sample that has shielding features against the low gamma-ray energy.
F.H.F. Al-Saeedi, M.I. Sayyed, F.L. Kapustin, Hanan Al-Ghamdi, E.V. Kolobkova, O.L. Tashlykov, Aljawhara H. Almuqrin, K.A. Mahmoud   +7 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