Results 41 to 50 of about 15,561,549 (138)

Comparison of Imaging Characteristics of 124I PET for Determination of Optimal Energy Window on the Siemens Inveon PET

BioMed Research International, Volume 2016, Issue 1, 2016., 2016
Purpose.124I has a half‐life of 4.2 days, which makes it suitable for imaging over several days over its uptake and washout phases. However, it has a low positron branching ratio (23%), because of prompt gamma coincidence due to high‐energy γ‐photons (602 to 1,691 keV), which are emitted in cascade with positrons. Methods.
A Ram Yu, Hee-Joung Kim, Sang Moo Lim, Jin Su Kim, Guang Jia   +4 more
wiley   +1 more source

Influence of the Generator in‐Growth Time on the Final Radiochemical Purity and Stability of  99mTc Radiopharmaceuticals

Science and Technology of Nuclear Installations, Volume 2013, Issue 1, 2013., 2013
At Legnaro laboratories of the Italian National Institute for Nuclear Physics (INFN), a feasibility study has started since 2011 related to accelerated‐based direct production of 99mTc by the 100Mo(p,2n) 99mTc reaction. Both theoretical investigations and some recent preliminary irradiation tests on 100Mo‐enriched samples have pointed out that both the
L. Uccelli, A. Boschi, M. Pasquali, A. Duatti, G. Di Domenico, G. Pupillo, J. Esposito, M. Giganti, A. Taibi, M. Gambaccini, Mushtaq Ahmad   +10 more
wiley   +1 more source

Performance Measurements of a Theoretical Positron Emission Tomography Scanner Model “T2PET-NSBD” Dedicated to Plant Imaging using Monte Carlo Simulations [PDF]

E3S Web of Conferences
This work focuses on the performance measurement of a theoretical scanner with an extended Axial FOV for plant Imaging, which is based on the block detector of Naviscan PEM Flex Solo II scanners using the Geant4 Application for Tomographic Emission (GATE)
Youbi Issam, Saaidi Rahal, El Bardouni Tarek, El Hajjaji Otman   +3 more
doaj   +1 more source

NEMA NU 1-2018 performance characterization and Monte Carlo model validation of the Cubresa Spark SiPM-based preclinical SPECT scanner

, 2023
Background The Cubresa Spark is a novel benchtop silicon-photomultiplier (SiPM)-based preclinical SPECT system. SiPMs in SPECT significantly improve resolution and reduce detector size compared to preclinical cameras with photomultiplier tubes requiring ...
Kimberly D. Brewer, Steven D. Beyea, Drew R. DeBay, Matthew E. Strugari   +3 more
core   +1 more source

Seasonal Snow Cycles and Their Possible Influence on Seismic Velocity Changes and Eruptive Activity at Ruapehu Volcano, New Zealand

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 12, December 2024.
Abstract Understanding volcanic eruption triggers is critical toward anticipating future activity. While internal magma dynamics typically receive more attention, the influence of external processes remains less understood. In this context, we explore the relationship between seasonal snow cycles and eruptive activity at Ruapehu, New Zealand.
Alexander S. Yates, Corentin Caudron, Aurélien Mordret, Philippe Lesage, Virginie Pinel, Thomas Lecocq, Craig A. Miller, Oliver D. Lamb, Nicolas Fournier   +8 more
wiley   +1 more source

Small‐scale measurement of fracture toughness of muddy marine sediments via bubble injection

Limnology and Oceanography: Methods, Volume 22, Issue 8, Page 527-535, August 2024.
Abstract Muddy marine sediments are elastic materials in which bubbles grow and worms extend their burrows by fracture. Bubble growth and burrowing behavior are dependent on the stiffness and fracture toughness (KIc) of these muds. This article describes a custom laboratory apparatus to measure the fracture toughness of muddy, cohesive sediments using ...
Anika S. Cho, Kelly M. Dorgan, Grant Lockridge   +2 more
wiley   +1 more source

A finely segmented semi‐monolithic detector tailored for high‐resolution PET

Medical Physics, Volume 51, Issue 5, Page 3421-3436, May 2024.
Abstract Background Preclinical research and organ‐dedicated applications use and require high (spatial‐)resolution positron emission tomography (PET) detectors to visualize small structures (early) and understand biological processes at a finer level of detail.
Yannick Kuhl, Florian Mueller, Stephan Naunheim, Matthias Bovelett, Janko Lambertus, David Schug, Bjoern Weissler, Eike Gegenmantel, Pierre Gebhardt, Volkmar Schulz   +9 more
wiley   +1 more source

Co Curator / Selector for 'NOISEfestival', 2008

, 2008
Billingham was a co - curator for NOISEfestival 2008. NOISEfestival.com was launched in Liverpool on 23rd February 2006 during the 2006 Liverpool Biennial. It was the UK’s first independent online arts showcase, presenting the best people under-25 in
Billingham, Richard, NOISEfestival 2008, Liverpool Biennial   +2 more
core   +3 more sources

Plural nu: uma visão indefinida [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Linguística, Florianópolis, 2011O objetivo do presente trabalho é investigar a distribuição e interpretação do plural nu no ...
Braga, João Vinicius de Almeida
core  

NEMA NU-04-based performance characteristics of the LabPET-8 (TM) small animal PET scanner

, 2011
The objective of this study is to characterize the performance of the preclinical avalanche photodiode (APD)-based LabPET-8 (TM) subsystem of the fully integrated trimodality PET/SPECT/CT Triumph (TM) scanner using the National Electrical Manufacturers ...
Rameshwar Prasad, Ratib, Osman, Zaidi, Habib, Osman Ratib, Prasad, Rameshwar, Habib Zaidi   +5 more
core   +1 more source