Results 201 to 210 of about 1,013,680 (237)
Design and validation of a novel dosimetry phantom for motion management audits
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background We present a novel phantom design for conducting end‐to‐end dosimetry audits for respiratory motion management of two anatomical treatment sites. The design enables radiochromic film measurements of the dose administered to the target throughout the respiratory cycle (motion‐included) and the dose delivered to the time‐averaged ...
Alex Burton +5 more
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Facile design of an ultra-thin broadband metamaterial absorber for C-band applications.
Sci Rep, 2019 Hoa NTQ, Tuan TS, Hieu LT, Giang BL.
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Machine stability and dosimetry for ultra‐high dose rate FLASH radiotherapy human clinical protocol
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Background The FLASH effect, induced by ultra‐high dose rate (UHDR) irradiations, offers the potential to spare normal tissue while effectively treating tumors. It is important to achieve precise and accurate dose delivery and to establish reliable detector systems, particularly for clinical trials needed to help the clinical transfer of FLASH‐
Patrik Gonçalves Jorge +9 more
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Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose Sparing pharyngeal constrictor muscles (PCMs) during radiotherapy improves patient‐reported swallowing function. This study aimed to explore the feasibility of integrating knowledge‐based planning (KBP) with multicriteria optimization (MCO) in Eclipse v18.0 to selectively spare PCM, quantify the required trade‐off in prophylactic ...
Laura K. Howard +3 more
wiley +1 more source
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C-Banding of Plant Chromosomes
2023C-banding visualizes regions of chromosomes containing constitutive heterochromatin. It creates distinct patterns along the chromosome length and allows precise chromosome identification if C-bands are present in sufficient numbers. It is performed on chromosome spreads generated from fixed material, usually root tips or anthers.
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1980 International Electron Devices Meeting, 1980
The operating characteristics of a gyrotron travellng wave tube (gyro-TWT) operating at C-band are reported. Detailed testing showed that at higher beam voltage and current and with a magnetic field profile increasing in magnitude toward the rf output window, the output power could be increased from 50 kW at 16.6% efficiency to 128 kW at 24% efficiency.
P.E. Ferguson, R. Symons
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The operating characteristics of a gyrotron travellng wave tube (gyro-TWT) operating at C-band are reported. Detailed testing showed that at higher beam voltage and current and with a magnetic field profile increasing in magnitude toward the rf output window, the output power could be increased from 50 kW at 16.6% efficiency to 128 kW at 24% efficiency.
P.E. Ferguson, R. Symons
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Scanning Electron Microscopy of C-Banding [PDF]
Zoological Science, 1996 The mechanism of C-banding was analyzed on the basis of the structural changes of the 30 nm chromatin fibre using scanning electron microscopy (SEM). SEM of non-banded metaphase spreads of L-cells revealed chromosomes consisting of 30 nm chromatin fibre loops along the entire length.
Koji Bunno +2 more
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The reaction to c-banding of c-banded constituents during mitotic cycle ofCrepis capillaris [PDF]
The Botanical Magazine Tokyo, 1989 The reaction to C-banding was investigated throughout the mitotic cycle ofCrepis capillaris (2n=6): (1) 18–22 C-bodies or C-bands were found during mid telophase and interphase to prophase and metaphase, and also 12–14 at late anaphase to early telophase in the mitotic cycle.
Junko Noguchi, Toshihide Ohno
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10th International Conference on Digital Satellite Communications (ICDSC-10), 1995 The provision of a portable C-band terminal communicating with large hub stations through an 18 MHz band of INTELSAT V transponders is investigated. The considered multiple hub network with distributed control can support up to 18 2.4 kbit/s simultaneously active users equipped with 0.8 m antennas at remote sites.
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