Results 11 to 20 of about 1,592 (184)

Study of prompt gamma and neutron emission for real-time range verification in proton and carbon-ion therapy. [PDF]

Med Phys
Abstract Background Accurate range verification is crucial in hadrontherapy to fully exploit the ballistic advantages of charged particles and prevent damage to healthy tissues. Among the proposed approaches, prompt gamma imaging (PGI) has emerged as an effective technique for real‐time monitoring, but its performance is limited by the intense neutron ...
Bellotti ES, Mazzucconi D, Bortot D, Pola A, Fiorini C, Urban K, Agosteo S.   +6 more
europepmc   +2 more sources

Geology mineralogy, structure and texture of Agh-Otagh base- precious metal mineralization (North Takab) [PDF]

پترولوژی, 2017
The Agh-Otagh mineralization area in the north of Takab, was formed within the andesistic tuffaceous rocks of the Oligo- Miocene age. Mineralization include polymetallic (Cu-Pb-Zn-Au-Ag) quartz veins and silicified zones, which occurred as breccia and ...
Nahid Rahmati, Mir Ali Asghar Mokhtari, Mohamad Ebrahimi, Ghasem Nabatian   +3 more
doaj   +1 more source

Lithological and Hydrothermal Alteration Mapping of Epithermal, Porphyry and Tourmaline Breccia Districts in the Argentine Andes Using ASTER Imagery

Remote Sensing, 2018
The area of interest is located on the eastern flank of the Andean Cordillera, San Juan province, Argentina. The 3600 km2 area is characterized by Siluro-Devonian to Neogene sedimentary and igneous rocks and unconsolidated Quaternary sediments ...
Francisco J. Testa, Cecilia Villanueva, David R. Cooke, Lejun Zhang   +3 more
doaj   +1 more source

In-situ trace element and S isotope systematics in pyrite from three porphyry-epithermal prospects, Limnos Island, Greece

Frontiers in Earth Science, 2022
Porphyry-epithermal systems associated with high-K calc-alkaline to alkaline igneous host rocks may be prospective for the recovery of Te among related elements like Cu, Ag, and Au. Limnos Island, as part of the Tethyan magmatic belt, is such an example,
Frederik Börner, Manuel Keith, Jonas L. Bücker, Panagiotis Voudouris, Reiner Klemd, Karsten Haase, Martin Kutzschbach, Ferry Schiperski   +7 more
doaj   +1 more source

Low sulfidation epithermal gold mineralization at Tambang Sawah, Lebong, Bengkulu Province, Indonesia [PDF]

E3S Web of Conferences, 2023
The Tambang Sawah area, Lebong, Bengkulu Province, is geologically located in the Barisan mountain range and the Sumatran fault zone and is composed of igneous rocks of the Sunda – Banda magmatic arc. This study is aimed to elucidate geological framework
Al Hakim Muhammad Muhsin, Idrus Arifudin, Suryanto Wiwit   +2 more
doaj   +1 more source

Fluid inclusion, zircon U-Pb geochronology, and O-S isotopic constraints on the origin and evolution of ore-forming fluids of the tashvir and varmazyar epithermal base metal deposits, NW Iran

Frontiers in Earth Science, 2022
Tashvir and Varmazyar deposits are part of the epithermal ore system in the Tarom–Hashtjin Metallogenic Belt (THMB), NW Iran. In both deposits, epithermal veins are hosted by Eocene volcanic-volcaniclastic rocks of the Karaj Formation and are spatially ...
Hossein Kouhestani, Mir Ali Asghar Mokhtari, Zhaoshan Chang, Zhaoshan Chang, Kezhang Qin, Kezhang Qin, Soheila Aghajani Marsa   +6 more
doaj   +1 more source

Beam Shaping Assembly Optimization for Boron Neutron Capture Therapy Facility based on Cyclotron 30 MeV as Neutron Source

ASEAN Journal on Science and Technology for Development, 2018
A design of beam shaping assembly (BSA) installed on cyclotron 30 MeV model neutron source for boron neutron capture therapy (BNCT) has been optimized using simulator software of Monte Carlo N-Particle Extended (MCNPX).
Arief Fauzi, Afifah Hana Tsurayya, Ahmad Faisal Harish, Gede Sutresna Wijaya   +3 more
doaj   +1 more source

Hydrothermal alteration, mineralization and fluid inclusions in the Pista and Fofão prospects: implications for the genetic model of the Coringa polymetallic deposit, SE Tapajós Mineral Province, Amazonian Craton, Brazil

Journal of the Geological Survey of Brazil, 2020
Pista and Fofão are a prospect located near the main orebodies of the Coringa polymetallic deposit, in southeastern Tapajós Mineral Province of the Amazonian Craton. In both prospects, the mineralization is hosted in an Orosirian alkali feldspar granite,
Rafael Guimarães Corrêa Lima, Evandro Luiz Klein   +1 more
doaj   +1 more source

Characteristics in Water Phantom of Epithermal Neutron Beam Produced by Double Layer Beam Shaping Assembly

ASEAN Journal on Science and Technology for Development, 2019
A Double Layer Beam Shaping Assembly (DLBSA) was designed to produce epithermal neutrons for BNCT purposes. The Monte Carlo N-Particle eXtended program was used as the software to design the DLBSA and phantom. Distribution of epithermal neutron and gamma
Bilalodin Bilalodin, Gede Bayu Suparta, Arief Hermanto, Dwi Satya Palupi, Yohannes Sardjono   +4 more
doaj   +1 more source

Geochemical characteristics of the main ore components in the Goshgarchay porphyry-epithermal system (Lesser Caucasus, Azerbaijan)

Вісник Київського національного університету імені Тараса Шевченка. Серія Геологія, 2023
The article deals with the determining characteristics of ore elements in the Goshgarchay porphyry-epithermal system. The genetic and geochemical characteristics of the main ore components were studied, and close positive and negative relationships ...
Mamoy Mansurov
doaj   +1 more source