Related Experiment Video
Updated: Jun 29, 2026
Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
Published on: August 15, 2014
Motion compensation with a scanned ion beam: a technical feasibility study.
Sven Oliver Grözinger1, Christoph Bert, Thomas Haberer
1Gesellschaft für Schwerionenforschung, Abteilung Biophysik, Darmstadt, Germany. svenoliver.groezinger@siemens.com
Motion compensation in particle therapy using scanned beams is feasible. This technique precisely tracks and adjusts the treatment beam to counteract intrafractional motion, ensuring accurate radiation delivery.
Area of Science:
- Medical Physics
- Radiation Oncology
- Particle Therapy
Background:
- Intrafractional motion during particle therapy with scanned beams causes dose inaccuracies.
- Scanned beam delivery enables real-time motion compensation through beam tracking.
Purpose of the Study:
- To evaluate the feasibility and precision of motion compensation techniques in scanned particle beam therapy.
Main Methods:
- Lateral motion was compensated by adjusting beam positions in real-time.
- Longitudinal motion was managed using a wedge system to alter effective particle energies.
Main Results:
- Lateral motion compensation achieved better than 1% accuracy for homogeneous dose distributions.
- Longitudinal range compensation accuracy was below 1 mm.
Conclusions:
- Motion compensation is technically feasible for scanned particle beams.
- High precision in motion compensation is achievable, improving dose accuracy.
More Related Videos
11:00Hand Controlled Manipulation of Single Molecules via a Scanning Probe Microscope with a 3D Virtual Reality Interface
Published on: October 2, 2016
09:01Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
Published on: April 4, 2017
