Results 11 to 20 of about 1,335,683 (287)

Effects of scanning speed and scanning times on surface quality of line spot laser polishing of nickel-based superalloys

open access: yesJournal of Materials Research and Technology, 2023
Nickel-based superalloy (DZ411) is widely used in aerospace and other fields due to its excellent physical properties, and the improvement of surface roughness is necessary in practical applications.
Chengnuo Yi   +4 more
doaj   +2 more sources

SPOT: Scanning plant IoT facility for high-throughput plant phenotyping [PDF]

open access: yesHardwareX, 2023
Many plant phenotyping platforms have been kept out of the reach of smaller labs and institutions due to high cost and proprietary software. The Scanning Plant IoT (SPOT) Facility, located at the University of Florida, is a mobile, laboratory-based ...
Stephen Lantin   +9 more
doaj   +2 more sources

High NA diffractive array illuminators and application in a multi-spot scanning microscope [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2012
Array illuminators generating spots with high NA at high efficiency are presented. They are designed via application of high-NA scalar optics methods, and implemented as periodic binary phase structures.
Hulsken B., Vossen D., Stallinga S.
doaj   +6 more sources

Clinical Viability of an Active Spot Scanning Beam Delivery System With a Newly Developed Carbon-Ion Treatment Planning System [PDF]

open access: yesAdvances in Radiation Oncology
Purpose: Although active spot scanning irradiation technique is theoretically superior to passive-scattered broad beam irradiation with respect to normal tissue sparing, corroborations of the clinical benefit of carbon-ion spot scanning have remained ...
Yixiao Guo, MD   +4 more
doaj   +2 more sources

Selective Laser Melting of Maraging Steel Using Synchronized Three-Spot Scanning Strategies. [PDF]

open access: yesMaterials (Basel), 2021
The selective laser melting (SLM) process, a kind of metal additive manufacturing method, can produce parts with complex geometries that cannot be easily manufactured using material removal processes.
Cheng CW, Jhang Jian WY, Makala BPR.
europepmc   +2 more sources

A feasibility study on a machine-learning-based quality assurance tool for spot-scanning proton therapy using delivery log files and treatment plans [PDF]

open access: yesPhysics and Imaging in Radiation Oncology
Background and purpose: Although pencil beam scanning provides superior dose conformity, delivery uncertainties remain in beam monitoring and steering systems. This study evaluates a machine learning model that predicts delivered spot positions from plan
Sang Kyun Yoo   +9 more
doaj   +2 more sources

Electron microscopic measurement of the size of the optical focus in laser scanning microscopy [PDF]

open access: yes, 2012
We describe a method for measuring the lateral focal spot size of a multiphoton laser scanning microscope (LSM) with unprecedented accuracy. A specimen consisting of an aluminum film deposited on a glass coverslip was brought into focus in a LSM and the ...
McConnell, Gail
core   +4 more sources

Layout optimization of the beam spot locations scanned by electromagnets in particle beam therapy

open access: yesMechanical Engineering Journal, 2022
This paper presents a layout optimization method of the spot locations of pencil beam scanning for particle beam cancer therapy. With the pencil beam scanning technique, the particle beam is scanned from spot to spot in the tumor by using scanning ...
Yusuke SAKAMOTO   +4 more
doaj   +1 more source

Design of real-time feedback system of dynamic current for spot scanning in medical heavy-ion facility

open access: yesHe jishu, 2021
BackgroundSpot scanning therapy is an accurate radiotherapy method in medical heavy-ion facilities. The process of spot scanning therapy is that the current of scanning power supply changes rapidly in real-time.
JIANG Haoyu   +4 more
doaj   +1 more source

3D Proton Bragg Peak Visualization and Spot Shape Measurement with Polymer Gel Dosimeters

open access: yesApplied Sciences, 2022
Proton pencil beam scanning is a dynamic beam delivery technique with excellent conformability to the tumor volume. The accuracy of spot size and scanning positions will have a significant effect on the delivered dose distribution.
Libing Zhu   +3 more
doaj   +1 more source

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