Results 61 to 70 of about 77,914 (244)

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, EarlyView.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244Cm$$ {}^{244}\mathrm{Cm} $$ sources, and come with severe concerns on radiation safety and ...
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Special Issue ”Instruments and Methods for Cyclotron Produced Radioisotopes”

Instruments, 2019
The 17th Workshop on Targets and Target Chemistry (WTTC17) was held in Coimbra (Portugal) on 27−31 August 2018. A few months before, the 13th Workshop of the European Cyclotron Network (CYCLEUR) took place in Lisbon (Portugal) on 23−24 ...
Saverio Braccini, Francisco Alves
doaj   +1 more source

Sub-millimeter nuclear medical imaging with high sensitivity in positron emission tomography using beta-gamma coincidences

, 2014
We present a nuclear medical imaging technique, employing triple-gamma trajectory intersections from beta^+ - gamma coincidences, able to reach sub-millimeter spatial resolution in 3 dimensions with a reduced requirement of reconstructed intersections ...
Habs, D., Lang, C., Parodi, K., Thirolf, P. G.   +3 more
core   +1 more source

Quantitative Dual‐Energy CT Perfusion Versus SPECT/CT V/Q Scintigraphy for Preoperative Lung Function Assessment: A Prospective Cohort Study

Journal of Medical Imaging and Radiation Oncology, EarlyView.
ABSTRACT Introduction Accurate preoperative physiological assessment is critical for high‐risk patients undergoing lung resection to predict postoperative lung function. This study compared quantitative dual‐energy CT (DECT) perfusion with SPECT/CT for lobar perfusion mapping in an at‐risk oncological cohort.
Jack Edward Liu, Kane Nicholls, Audree So, Siddharth M. Kulkarni, Anthony Tu Tran, Stephen A. Barnett, Amy Baker   +6 more
wiley   +1 more source

Near-Earth Supernova Explosions: Evidence, Implications, and Opportunities [PDF]

, 2019
There is now solid experimental evidence of at least one supernova explosion within 100 pc of Earth within the last few million years, from measurements of the short-lived isotope ⁶⁰Fe in widespread deep-ocean samples, as well as in the lunar regolith ...
Fields, Brian D., Mewaldt, Richard A.
core  

Development of the HTRF assay to evaluate the auxin‐induced binding between TIR1 and IAA7

New Phytologist, EarlyView.
Summary Auxin plays diverse roles in plant growth and development, including sensing environmental changes. Quantifying the interaction between auxin coreceptors provides the molecular basis for cells to sense and adapt to environmental cues. Although several assays are available, a more high‐throughput method is necessary to efficiently evaluate the ...
Jekson Robertlee, Shinya Hagihara
wiley   +1 more source

Generation of radioisotopes for medical applications using high-repetition, high-intensity lasers

High Power Laser Science and Engineering
We used the PW high-repetition laser facility VEGA-3 at Centro de Láseres Pulsados in Salamanca, with the goal of studying the generation of radioisotopes using laser-driven proton beams.
Katarzyna Liliana Batani, Marcia R. D. Rodrigues, Aldo Bonasera, Mattia Cipriani, Fabrizio Consoli, Francesco Filippi, Massimiliano M. Scisciò, Lorenzo Giuffrida, Vasiliki Kantarelou, Stanislav Stancek, Roberto Lera, Jose Antonio Pérez-Hernández, Luca Volpe, I. C. Edmond Turcu, Matteo Passoni, Davide Vavassori, David Dellasega, Alessandro Maffini, Marine Huault, Howel Larreur, Louis Sayo, Thomas Carriere, Philippe Nicolai, Didier Raffestin, Diluka Singappuli, Dimitri Batani   +25 more
doaj   +1 more source

Activation cross-sections of longer lived products of proton induced nuclear reactions on manganese up to 70 MeV

, 2013
In the frame of a systematic study of the activation cross-sections of the proton induced nuclear reactions, excitation functions of the 55Mn(p,x)154,152gMn,51Cr and 48V were measured up to 70 MeV.
Baba, M., Ditrói, F., Hermanne, A., Mohammadi, A., Takács, S., Tárkányi, F., Yamazaki, H.   +6 more
core   +1 more source

Physiology and Transcriptomics Reveal Divergent Strategies of Mycorrhiza‐Mediated Drought Adaptation in Poplar

Plant, Cell &Environment, EarlyView.
ABSTRACT Mycorrhizal symbiosis shapes plant growth and stress resilience. Here, we compared physiological and molecular responses of poplars (P. x canescens) colonised by Paxillus involutus (Pi) or Cenococcum geophilum (Cg) under control conditions, drought stress and recovery.
Huili Shi, Zhuchou Lu, Andrea Polle
wiley   +1 more source

Study of heat sensitive radioisotopes for temperature measurement application Final report [PDF]

Heat sensitive radioisotopes for temperature measurements in rocket nose ...
Hutchinson, H. D.
core   +1 more source