Results 41 to 50 of about 4,563 (171)

Conformal Dose Modulator for Proton Beam Therapy Part 1: A Simulation Study

Frontiers in Oncology, 2022
PurposeConformal dose deliveries in proton therapy utilize either a passive scattering system with a modulator or a pencil beam scanning (PBS) system. Efforts have been made to achieve conformal dose delivery by scanning a single energy layer of pencil ...
Zhexuan Zhang, Weizhao Zhao, Michael Butkus, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu, Xiaodong Wu   +7 more
doaj   +1 more source

Simultaneous Multiple Liver Metastasis Treated with Pencil Beam Proton Stereotactic Body Radiotherapy (SBRT) [PDF]

International Journal of Particle Therapy, 2021
Compared with photon stereotactic body radiotherapy (SBRT) plans that may have to use many more penetrating x-ray beams for each isocenter, proton SBRT with ultrahypofractionated doses use fewer beam angles and offer significantly reduced low-dose ...
Neil K. Taunk, MD, MSCTS, Brendan Burgdorf, MMP, Lei Dong, PhD, Edgar Ben-Josef, MD   +3 more
doaj   +1 more source

ESTRO-EPTN radiation dosimetry guidelines for the acquisition of proton pencil beam modelling data

Physics and Imaging in Radiation Oncology
Proton therapy (PT) is an advancing radiotherapy modality increasingly integrated into clinical settings, transitioning from research facilities to hospital environments.
Carles Gomà, Katrin Henkner, Oliver Jäkel, Stefano Lorentini, Giuseppe Magro, Alfredo Mirandola, Lorenzo Placidi, Michele Togno, Marie Vidal, Gloria Vilches-Freixas, Jörg Wulff, Sairos Safai   +11 more
doaj   +1 more source

Dual-Layer Beamscanning Reflectarray Antenna Operating at Ku-Band

Journal of High-Frequency Communication Technologies, 2023
This paper presents a beam scanning electronically reconfigurable reflectarray configuration for Ku-band applications using a single varactor diode.  A 15×15 center-fed reconfigurable reflectarray antenna is designed consisting of 225 octagonal shaped ...
Vidhyashree Suresh, Aishika Bhattacharjee, Kirubaveni Savarimuthu   +2 more
doaj   +1 more source

Comparison of dosimetries of carbon-ion pencil beam scanning, proton pencil beam scanning and volumetric modulated arc therapy for locally recurrent rectal cancer

Journal of Radiation Research, 2022
Abstract We compared the dose distributions of carbon-ion pencil beam scanning (C-PBS), proton pencil beam scanning (P-PBS) and Volumetric Modulated Arc Therapy (VMAT) for locally recurrent rectal cancer. The C-PBS treatment planning computed tomography (CT) data sets of 10 locally recurrent rectal cancer cases were ...
Mori, Shinichiro, Bhattacharyya, Tapesh, Furuichi, Wataru, Tohyama, Naoki, Nomoto, Akihiro, Shinoto, Makoto, Takiyama, Hirotoshi, Yamada, Shigeru   +7 more
openaire   +2 more sources

Drop‐Location‐Insensitive Droplet‐Based Electricity Generator Using Polydimethylsiloxane Slippery Covalently Attached Liquid Coatings

Advanced Science, EarlyView.
Drop‐location sensitivity remains a key barrier to practical droplet‐based electricity generators (DEGs). Here, a polydimethylsiloxane slippery covalently attached liquid (PDMS‐SCAL)‐coated interface promotes droplet sliding instead of splitting or bouncing, allowing stable electricity generation from randomly falling raindrops. The resulting PDMS‐SCAL‐
Jung Bin Yang, Donghyeon Yoo, Hideaki Teshima, Donghan Lee, Dongwhi Choi, Dong Rip Kim, Nenad Miljkovic   +6 more
wiley   +1 more source

Beam-shape loss for multiple-beam digital array radars

The Journal of Engineering, 2019
This study considers beam-shape loss (BSL) for pencil-beam digital array radars (DARs), when multiple simultaneous receive beams are formed to cover the volume illuminated by each transmit beam.
Yuan Yao, Guangxin Wu
doaj   +1 more source

A systematic study of independently-tuned room-specific PBS beam model in a beam-matched multiroom proton therapy system

Radiation Oncology, 2021
Background In the existing application of beam-matched multiroom proton therapy system, the model based on the commissioning data from the leading treatment room was used as the shared model.
Yu-Hua Huang, Chunfeng Fang, Tao Yang, Lin Cao, Gaolong Zhang, Baolin Qu, Yihang Zhang, Zishen Wang, Shouping Xu   +8 more
doaj   +1 more source

Water‐Soluble POSS Promotes Concurrent Coalescence and Crosslinking for Multiscale‐Reinforced, Coalescent‐Free Waterborne Coatings

Advanced Science, EarlyView.
Water‐soluble amine‐functionalized polyhedral oligomeric silsesquioxane promotes concurrent latex coalescence and crosslinking, allowing epoxy‐functional particles to form continuous films without added volatile coalescing agents. The resulting multiscale‐reinforced waterborne coatings combine high strength, toughness, optical transparency, scratch ...
Chao Wang, Bin Wu, Lin Li, Yibo Ru, Xiaohe Zhang, Minlong Wang, Ruoyan Yang, Jie An   +7 more
wiley   +1 more source

Dual-Mode Sea Ice Extent Retrieval for the Rotating Fan Beam Scatterometer

Remote Sensing
Scatterometers are highlighted in polar applications, such as sea ice extent retrieval. There are currently three types of spaceborne scatterometer in operation, among which the rotating pencil beam scatterometer and the rotating fan beam scatterometer ...
Liling Liu, Xiaolong Dong, Wenming Lin, Shuyan Lang   +3 more
doaj   +1 more source