Results 51 to 60 of about 6,347 (227)
Delayed X- and Gamma-Ray Line Emission from Solar Flare Radioactivity [PDF]
We have studied the radioactive line emission expected from solar active regions after large flares, following the production of long-lived radioisotopes by nuclear interactions of flare-accelerated ions. This delayed X- and gamma-ray line emission can provide unique information on the accelerated particle composition and energy spectrum, as well as on
arxiv +1 more source
Abstract Management of phosphorus (P) inputs to agroecosystems is often evaluated by phosphorus use efficiency (PUE), but different calculation approaches may yield discrepancies in estimated PUE values. We evaluated PUE (i) indirectly calculated by difference in crop P uptake between a P‐fertilized versus a P‐unfertilized control (PUEdiff) and (ii ...
Andrew J. Margenot+2 more
wiley +1 more source
Recovery of radioisotopes from nuclear waste for radio-scintillator-luminescence energy applications [PDF]
Extraction of the light weight radioisotopes (LWR) 89Sr/90Sr, from the expended nuclear bars in the Fukushima reactor, should have decreased the extent of contamination during the course of the accident. 89Sr applications could pay for the extraction of 89Sr/90Sr from nuclear residues.
arxiv
Abstract The Kerguelen large igneous province (LIP), situated dominantly in the southern Indian Ocean, has several exceptional characteristics. These include an episodic and protracted formation over a ∼130 Myr period, sustaining the longest, continuous high‐magma‐flux emplacement interval of any LIP (>38 Myr), and the preservation of multiple ...
Jeremy L. Asimus+7 more
wiley +1 more source
Trace Analysis of Marine Organisms: A Comparison of Activation Analysis and Conventional Methods [PDF]
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/109766/1/lno1959440398 ...
Fukai, Rinnosuke, Meinke, W. W.
core +1 more source
Abstract The EFSA Panel on Food Contact Materials (FCM) was requested by the European Commission to re‐evaluate the potential genotoxicity of styrene after oral exposure and its safety for use in plastic FCM with a specific migration limit (SML) of 40 μg/kg food.
EFSA Panel on Food Contact Materials (FCM)+18 more
wiley +1 more source
The Third complex multidisciplinary expedition of the Russian Geographic Society for monitoring of the radiation situation in the Kuril-Kamchatka area of the Pacific Oceantook place in September – October 2014.
A. M. Biblin+3 more
doaj
Future Supply of Medical Radioisotopes for the UK Report 2014 [PDF]
The UK has no research nuclear reactors and relies on the importation of 99Mo and other medical radioisotopes (e.g. Iodine-131) from overseas (excluding PET radioisotopes). The UK is therefore vulnerable not only to global shortages, but to problems with shipping and importation of the products.
arxiv
Event-based Signal Processing for Radioisotope Identification [PDF]
This paper identifies the problem of unnecessary high power overhead of the conventional frame-based radioisotope identification process and proposes an event-based signal processing process to address the problem established. It also presents the design flow of the neuromorphic processor.
arxiv
Abstract Purpose Cardiac motion may degrade dose distribution during stereotactic arrhythmia radioablation using the CyberKnife system, a robotic radiosurgery system. This study evaluated the dose distribution changes using a self‐made cardiac dynamic platform that mimics cardiac motion. Methods The cardiac dynamic platform was operated with amplitudes
Takayuki Miyachi+6 more
wiley +1 more source