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Beyond treatment volume: when pelvic radiotherapy may still matter in high-risk localised prostate cancer. [PDF]
Front OncolHenríquez I +3 more
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LDR Lite Benchmark: Description of the Core Model
International Conference on Physics of Reactors (PHYSOR 2024)We alleviate the lack of detailed, design-specific SMR-benchmarks by providing the first specifications of the LDR lite benchmark.This benchmark is based on the public version of the LDR-50 reactor design, developed at VTT since 2020 for low temperature heat production applications.The main characteristics of this 50 MWth integrated pressure water ...
Tuominen, Riku, Valtavirta, Ville
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Response of an LDR to Light's Spatial Structure
Frontiers in Optics + Laser Science 2023 (FiO, LS), 2023An LDR's response is known to be dependent on light intensity and wavelength. In this work, we show via simulations and experiment that its behavior is also affected by the spatial structure of incoming light.
Niña Zambale Simon +2 more
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In-phantom calibration of Selectron-LDR sources
Radiotherapy and Oncology, 1990Source strength measurements were performed for cesium-137 spherical sources of nine Selectron-LDR remote afterloading systems in The Netherlands. The mean reference air kerma rate of a set of sources was obtained from air kerma rate measurements in a phantom at a distance of about 5.5 cm from a large number (24 to 30) of sources.
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HDR Versus LDR Gynecological Brachytherapy Revisited
Medical Dosimetry, 1993Despite the obvious breakthrough of high dose-rate (HDR) afterloading systems on the gynecological brachytherapy market, questions still remain regarding the transfer of available expertise gained throughout the last 80 years with low dose-rate (LDR) radium and cesium, especially regarding the conversion of LDR total dose into equivalent HDR dose per ...
P, Scalliet, A, Gerbaulet, B, Dubray
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SU‐FF‐T‐11: Dosimetry Comparison of LDR 137Cs and LDR 252Cf Brachytherapy Sources
Medical Physics, 2005Purpose: Hundreds of patients have received gynecological brachytherapy treatments in the US using applicator tube‐type (AT) low dose rate (LDR) 252Cf sources. However, its mixed‐field radiation dose distributions have not been characterized using the AAPM Task Group 43 dosimetry formalism, nor quantitatively compared to conventional photon‐emitting ...
C Melhus, H Zinkin, M Rivard
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CNN-based LDR-to-HDR conversion system
2018 IEEE International Conference on Consumer Electronics (ICCE), 2018We propose a system to convert low-dynamic-range images to high-dynamic-range (HDR) images. The system is based on a convolutional neural network (CNN). We use the CNN to distinguish light sources from non-light sources, and use that information to identify regions that should be brightened.
Seung-Jun Shin +2 more
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Recover image details from LDR photographs
2013 IEEE International Symposium on Circuits and Systems (ISCAS2013), 2013In this paper, a novel self-adaptive curve, based on human visual model (HVM), is proposed for recovering details from low dynamic range (LDR) digital photographs, which are under-exposed or over-exposed or both. In order to improve the perceptual visibility, we utilize HVM to construct our method, which is able to take advantage of entire dynamic ...
Kui Fan +3 more
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Intervening to Promote Early Initiation of Breastfeeding in the LDR
MCN: The American Journal of Maternal/Child Nursing, 2007To evaluate the effectiveness of an interventional protocol for the early initiation of breastfeeding that would remove barriers in the labor, delivery, recovery (LDR) unit.Descriptive design using 100 postpartum mothers who were interviewed before discharge at a large university hospital in the south-central United States.
Carol, Komara +5 more
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2018
Low-dose-rate (LDR) intracavitary brachytherapy for the uterine cervix was a standard treatment modality in the first half of the twentieth century. High-dose-rate (HDR) intracavitary brachytherapy was developed to overcome some drawbacks of LDR brachytherapy (e.g., exposure of the medical staff and long treatment time).
Takashi Nakano, Masaru Wakatsuki
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Low-dose-rate (LDR) intracavitary brachytherapy for the uterine cervix was a standard treatment modality in the first half of the twentieth century. High-dose-rate (HDR) intracavitary brachytherapy was developed to overcome some drawbacks of LDR brachytherapy (e.g., exposure of the medical staff and long treatment time).
Takashi Nakano, Masaru Wakatsuki
openaire +1 more source