Results 1 to 10 of about 235,312 (146)

A Wide Energy Range and 4π-View Gamma Camera with Interspaced Position-Sensitive Scintillator Array and Embedded Heavy Metal Bars [PDF]

open access: yesSensors, 2023
(1) Background: Gamma cameras have wide applications in industry, including nuclear power plant monitoring, emergency response, and homeland security. The desirable properties of a gamma camera include small weight, good resolution, large field of view ...
Yifan Hu   +6 more
doaj   +2 more sources

Gamma Camera Imaging with Rotating Multi-Pinhole Collimator. A Monte Carlo Feasibility Study [PDF]

open access: yesSensors, 2021
In this work, we propose and analyze a new concept of gamma ray imaging that corresponds to a gamma camera with a mobile collimator, which can be used in vivo, during surgical interventions for oncological patients for localizing regions of interest such
Victor Ilisie   +4 more
doaj   +2 more sources

A Simulation Study for Optimal Pinhole Collimator Design in Gamma Camera Systems [PDF]

open access: yesJournal of Medical Physics
Background: The usage of a semiconductor detector with a pinhole collimator can provide high spatial resolution due to its high intrinsic resolution. However, the collimator system has low sensitivity due to the hole’s small diameter.
M. A. Ghoneim
doaj   +2 more sources

Intraoperative Gamma Cameras: A Review of Development in the Last Decade and Future Outlook

open access: yesJournal of Imaging, 2023
Portable gamma cameras suitable for intraoperative imaging are in active development and testing. These cameras utilise a range of collimation, detection, and readout architectures, each of which can have significant and interacting impacts on the ...
Andrew L. Farnworth, Sarah L. Bugby
doaj   +1 more source

Comparison of three methods used for measurement of radioiodine fixation in thyroid gland of mice [PDF]

open access: yesNuclear Technology and Radiation Protection, 2013
The aim of this work is to compare the results of estimation of radioiodine uptake using three methods in a study on mice, and to test reliability of the radioiodine uptake estimation by gamma camera.
Jeremić Marija Ž.   +6 more
doaj   +1 more source

Spatial resolution and natural image quality assessment evaluation of gamma camera image using pinhole collimator in lutetium-yttrium oxyorthosilicate scintillation detector

open access: yesNuclear Engineering and Technology, 2023
Scintillator materials are widely used in the medical and industrial fields for imaging systems using gamma cameras. In this study, image evaluation is performed by modeling a gamma camera system based on a lutetium-yttrium oxyorthosilicate (LYSO ...
Kyuseok Kim, Youngjin Lee
doaj   +1 more source

Optimizing the Minimum Detectable Difference of Gamma Camera SPECT Images via the Taguchi Analysis: A Feasibility Study with a V-Shaped Slit Gauge

open access: yesApplied Sciences, 2022
This study tried to propose an innovated idea of solidifying the resolution of gamma camera in routine quality control and recommended a quantified index as minimum detectable difference (MDD) of gamma camera SPECT images using the Taguchi analysis and ...
Ching-Hsiu Ke   +4 more
doaj   +1 more source

Development of a strategy for calibrating the novel SiPM camera of the SST-1M telescope proposed for the Cherenkov Telescope Array [PDF]

open access: yes, 2017
CTA will comprise a sub-array of up to 70 small size telescopes (SSTs) at the southern array. The SST-1M project, a 4 m-diameter Davies Cotton telescope with 9 degrees FoV and a 1296 pixels SiPM camera, is designed to meet the requirements of the next ...
Alispach, C.   +39 more
core   +2 more sources

Multi-slit prompt-gamma camera for locating of distal dose falloff in proton therapy

open access: yesNuclear Engineering and Technology, 2019
In this research, a multi-slit prompt-gamma camera was developed to locate the distal dose falloff of the proton beam spots in spot scanning proton therapy.
Jong Hoon Park   +7 more
doaj   +1 more source

Monte-Carlo simulations of the background of the coded-mask camera for X- and Gamma-rays on-board the Chinese-French GRB mission SVOM [PDF]

open access: yes, 2009
For several decades now, wide-field coded mask cameras have been used with success to localise Gamma-ray bursts (GRBs). In these instruments, the event count rate is dominated by the photon background due to their large field of view and large effective ...
Barret, D.   +6 more
core   +2 more sources

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