Results 31 to 40 of about 235,461 (293)

An applicable count rate saturation correction approach on gamma camera for I-131 labeled radiopharmaceuticals

Results in Physics, 2019
Background: Gamma camera count rate saturation and high-rate dead time are the most important problems of quantitative measurement in dosimetric studies.
Mahdi Haghighatafshar, Elham Piruzan, Seyed Mohammad Entezarmahdi, Fatemeh Shekoohi-Shooli, Mohammad Reza Parishan   +4 more
doaj   +1 more source

Remote search for gamma sources at the dry storage unit 3A in Andreeva bay and the determination of their dose rates during activities for improvement to the radiological environment [PDF]

Nuclear Technology and Radiation Protection, 2012
The remotely controlled replacement of the concrete covering of the spent fuel dry storage unit 3A with a new iron horizontal biological shielding was carried out during works aimed at the improvement of the radiological environment at the NWC “SevRAO”
Ivanov Kirill E., Varnavin Anatoly P., Korolev Andrey V., Stepennov Boris S., Sukhoruchkin Andrey K., Teterin Yury A., Teterin Anton Yu., Kharitonov Vladimir V., Selishev Valery A., Fedoseenkov Alexander N., Krasnoshekov Alexander N., Kosnikov Alexander S., Kostikov Dmitry A.   +12 more
doaj   +1 more source

Remote Assessment of Ataxia Severity in SCA3 Across Multiple Centers and Time Points

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinocerebellar ataxia type 3 (SCA3) is a genetically defined ataxia. The Scale for Assessment and Rating of Ataxia (SARA) is a clinician‐reported outcome that measures ataxia severity at a single time point. In its standard application, SARA fails to capture short‐term fluctuations, limiting its sensitivity in trials.
Marcus Grobe‐Einsler, Vivian Maas, Arian Taheri Amin, Jennifer Faber, Tamara Schaprian, Katharina Hill, Matthis Synofzik, Lisa H. Graf, Heike Jacobi, Manuela Lima, Ana F. Ferreira, Bart P. van de Warrenburg, Ilse H. J. Willemse, Dagmar Timmann, Andreas Thieme, Paola Giunti, Hector Garcia‐Moreno, Magda M. Santana, Jeannette Hübener‐Schmid, Elin H. Davies, Thomas Klockgether   +20 more
wiley   +1 more source

Coded-aperture based stereo gamma-ray imager for near field 3-D localization

Nuclear Engineering and Technology
Since the Fukushima nuclear disaster, the use of gamma-ray imagers to explore contaminated areas has increased substantially. Contaminated area identification and radionuclide determination techniques are essential for creating detailed radioactive ...
Seungho Lee, Minseo Song, Dukwoo Kim, Joonhyuk Lee, Changyu Ko, Manhee Jeong   +5 more
doaj   +1 more source

Augmenting camera images with gamma detector data

EJNMMI Physics, 2019
Background Squamous cell carcinoma in the head and neck region is one of the most widespread cancers with high morbidity. Classic treatment comprises the complete removal of the lymphatics together with the cancerous tissue.
Peter A. von Niederhäusern, Simon Pezold, Uri Nahum, Carlo Seppi, Guillaume Nicolas, Michael Rissi, Stephan K. Haerle, Philippe C. Cattin   +7 more
doaj   +1 more source

Distribution of Electrical Resistivity in Single Carbon Fiber Filaments and Its Correlation With Tensile Modulus

Advanced Engineering Materials, EarlyView.
A statistical framework is applied to quantify the distribution of electrical resistivity among individual filaments of two commercially available carbon fiber types. Correlations between filament resistivity, tensile modulus, and diameter are examined and complemented by TEM analysis to provide new insight into filament‐level variability relevant for ...
Nils Wieja, Daniel Sebastian Wolz, Philip Johannes Steinbild, Markus Löffler, Darius Pohl, Jan Wolf, Anja Winkler, Thomas Behnisch, Bernd Rellinghaus, Maik Gude   +9 more
wiley   +1 more source

Use of a Si/CdTe Compton Camera for In vivo Real-Time Monitoring of Annihilation Gamma Rays Generated by Carbon Ion Beam Irradiation

Frontiers in Oncology, 2020
The application of annihilation gamma-ray monitoring to the adaptive therapy of carbon ion radiotherapy (C-ion RT) requires identification of the peak intensity position and confirmation of activated elements with annihilation gamma-rays generated at the
Shintaro Shiba, Shintaro Shiba, Raj Kumar Parajuli, Raj Kumar Parajuli, Makoto Sakai, Takahiro Oike, Tatsuya Ohno, Takashi Nakano, Takashi Nakano   +8 more
doaj   +1 more source

Measuring radiation in the environment following the Fukushima nuclear disaster, Japan [PDF]

, 2012
A group of scientists and technical staff from Toshiba Company, including Dr Hirokazu Kanai, undertook field trials at the station using a newly-developed, portable, two-dimensional gamma-ray visualization system known as a “Gamma Camera”
Lowe, David J.
core   +1 more source

A Pointing Solution for the Medium Size Telescopes for the Cherenkov Telescope Array

, 2016
An important aspect of the calibration of the Cherenkov Telescope Array is the pointing, which enables an exact alignment of each telescope and therefore allows to transform a position in the sky to a point in the plane of the Cherenkov camera and vice ...
Garczarczyk, M., Oakes, L., Schwanke, U., Tiziani, D., van Eldik, C.   +4 more
core   +2 more sources

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source