Results 61 to 70 of about 449 (175)

Nature, origin and significance of a clayey cave deposit: Relationship between karst and Oligocene/Miocene tephra (NW Dinarides)

The Depositional Record, Volume 11, Issue 3, Page 954-974, June 2025.
A limestone cave in the NW Dinarides exhibits an anomalous presence of montmorillonite clay, not commonly found in surrounding caves, posing questions about its origin and age. Analysis reveals a composition similar to weathered tephra from the Smrekovec Volcanic Complex, suggesting transport by north‐east winds.
Nadja Zupan Hajna, Pavel Bosák, Andrej Mihevc, Michał Banaś, Jiří Filip, Lukáš Krmíček, Lenka Lisá, Šárka Matoušková, Jan Rohovec, Roman Skála, Jiří Sláma, Martin Šťastný, Jaromír Ulrych   +12 more
wiley   +1 more source

Early Cretaceous to Miocene Tectonic Evolution of the NW Cyclades Based on 40Ar/39Ar Multiple Single Crystal Dating of White Mica From Andros

Tectonics, Volume 44, Issue 6, June 2025.
Abstract The Aegean region marks the convergent boundary between the African and Eurasian plates, reflecting complex tectonic processes, including the closure of the Pindos ocean. The Pelagonian unit (PU) forms the core of mainland Greece and was part of the Eurasian continental margin, while the Pindos oceanic crust subducted beneath it.
Shijie Shang, Bertram A. Uunk, Klaudia F. Kuiper, Fraukje M. Brouwer, Jan R. Wijbrans   +4 more
wiley   +1 more source

Temperature-induced corrosion of the TRIGA 2000 research reactor tank liner in long-term normal operation

Results in Engineering
Aluminum alloy AA-6061-T6 is widely used as the tank liner in nuclear reactors due to its corrosion resistance and low neutron absorption. However, prolonged exposure induces degradation, threatening structural integrity and operational safety.
Veri Trisnawan, Prasetyo Basuki, Hakimul Wafda, Yayat Supriyatna, Djoko Hadi Prajitno, Maykel Manawan, Roziq Himawan, Deddy Kurniadi   +7 more
doaj   +1 more source

The Hydroclimate and Environmental Response to Middle Miocene Warming in the Southwestern USA: Stable Isotope Evidence

Paleoceanography and Paleoclimatology, Volume 40, Issue 5, May 2025.
Abstract Predictions for the southwestern US with warming often suggest increased aridity. We investigate the sedimentary record of the Miocene Climate Optimum and Transition (MCO and MCT; ∼17–14 Ma) in northern New Mexico to understand the impact of warmer global temperatures and higher pCO2 on southwestern US hydroclimate. The MCO and MCT comprised a
Siânin Spaur, Daniel J. Koning, Matthew Heizler, Scott Aby, Garrett Williamson, Jeffrey R. Knott, R. Paul Acosta, Jeremy K. C. Rugenstein   +7 more
wiley   +1 more source

Design and testing of a fiber-coupled fast neutron scintillation detector for low-power research reactors [PDF]

EPJ Web of Conferences
We present a new fiber-coupled organic scintillator fast neutron detector. Plastic scintillators are used in many applications to detect fast neutrons and gamma rays.
Bembinoff Alexis Dupont, Pakari Oskari, Clément Daniel, Ligonnet Thomas, Hursin Mathieu, Pautz Andreas, Lamirand Vincent   +6 more
doaj   +1 more source

A STUDY OF THE SHIELD OF THE UNIVERSITY OF ILLINOIS TRIGA MARK II RESEARCH REACTOR [PDF]

, 1962
Detailed measurements were made of the fast-neutron and gamma dose rates and the thermal-neutron fluxes existing at the surfaces of the biological shield of the University of Illinois TRIGA Mark II Research Reactor. Dose rates and fluxes were found to be extremely low. A comparison was made by means of threshold foil techniques between the fast-neutron
Blosser, T.V., Freestone, R.M. Jr., Miller, J.M.   +2 more
openaire   +2 more sources

The ENEA TRIGA RC-1 facility inside the SECURE project: Production of medical isotopes by neutron activation [PDF]

EPJ Web of Conferences
TRIGA (Training, Research, and Isotope production General Atomics) facilities are research reactors extensively used for neutron activation analyses and various neutron-related experiments and applications.
Spagnuolo Lucrezia, Lepore Luigi, Cozzella Letizia, Guarcini Tiziana, Limosani Francesca, Pagano Angela, Placidi Simone, Falconi Luca, Fabrizio Valentina, Formenton Davide, Roberti Andrea, Capogni Marco   +11 more
doaj   +1 more source

Production of ¹¹ C and ⁷ Be by TRIGA-II Research Reactor

Journal of Nuclear Science and Technology, 1969
11C has been produced by irradiating for 30 min in the pneumatic tube of a TRIGA-III research reactor about 700 mg of metaboric acid (HBO2), using the 11B (p,n) 11C reaction initiated by neutron-hydrogen recoil. The fast neutron flux (>lMeV) was 9×1011n/cm2·sec. The 11C produced was separated from the irradiated target by distillation of CO2. The yield
MARUYAMA, Yoshiaki, MANRI, Teruo, KOMIYA, Kazuhide   +2 more
openaire   +1 more source

FILTERING THE FUNDAMENTAL FREQUENCY EFFECT RELATED TO ELECTRIC POWER NETWORK FOR ITU-TRIGA MARK-II NUCLEAR REACTOR BY WAVELET ANALYSIS APPROACH

Electrica, 2019
In this research, data acquisition studies for signals from the neutron detectors and fuel thermo -couples of ITU TRIGA MARK-II nuclear reactor was implemented.
Burak BARUTÇU, Serhat EKER
doaj   +2 more sources

RSV TAPIRO and TRIGA RC-1 research reactors activities

Annals of Nuclear Energy
Neutrons produced by research reactors have an important role in the development of nuclear science and technology and also in education and training on these applications. These facilities, originally constructed during the ‘60 s and ‘70 s decades, were initially used for the national nuclear program, then their original mission was converted to host ...
Falconi L., Fabrizio V., Santagata A.
openaire   +2 more sources