Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

A method for achieving variable widths of the spread-out Bragg peak using a ridge filter.

T Nakagawa¹, K Yoda

¹Mitsubishi Electric Corporation, Advanced Technology R&D Center, Amagasaki, Hyogo, Japan.

Medical Physics

|May 8, 2000

Summary

A novel tilting ridge filter design enables continuous adjustment of the spread-out Bragg peak (SOBP) width for radiation therapy. This cost-effective method maintains excellent depth dose uniformity across a range of SOBP widths.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Reproductive characteristics in an understory bamboo and gradual environmental changes after its dieback provide an extended opportunity for overstory tree regeneration in a mixed cool-temperate forest in central Japan.

Plant biology (Stuttgart, Germany)·2023

Same author

Distinct Interaction of TmrB Protein with Membranes in Bacillus subtilis and Escherichia coli.

Bioscience, biotechnology, and biochemistry·2016

Same author

Induction of Two Types of Gene Amplification by a Cloned DNA Fragment and Amplification of a Foreign Gene on the Bacillus subtilis Chromosome by Using the Fragment.

Bioscience, biotechnology, and biochemistry·2016

Same author

Heat-killed Lactobacillus gasseri can enhance immunity in the elderly in a double-blind, placebo-controlled clinical study.

Beneficial microbes·2015

Same author

A planning target volume margin formula for hypofractionated intracranial stereotactic radiotherapy under cone beam CT image guidance with a six-degrees-of-freedom robotic couch and a mouthpiece-assisted mask system: a preliminary study.

The British journal of radiology·2014

Same author

Clonic convulsive movements during and on emergence from sevoflurance anesthesia.

Journal of anesthesia·2013

Area of Science:

Medical Physics
Radiation Oncology
Biomedical Engineering

Background:

Designing spread-out Bragg peak (SOBP) ridge filters is crucial for precise radiation therapy.
Current methods may lack flexibility in adjusting SOBP width.
Optimizing SOBP characteristics is essential for effective dose delivery.

Purpose of the Study:

To propose a novel method for designing a variable spread-out Bragg peak (SOBP) ridge filter.
To enable continuous variation of the SOBP width using a tilting mechanism.
To evaluate the performance and advantages of the proposed design.

Main Methods:

Ridge filter parameters were determined using Monte Carlo calculations.
A fast two-step iterative optimization process was employed.

Related Experiment Videos

The designed ridge filter was tilted to achieve continuous SOBP width variation.

Main Results:

Monte Carlo simulations demonstrated depth dose uniformity ranging from +/- 1.3% to +/- 1.6%.
The method allows for SOBP width variation from 10.3 cm to 14.5 cm.
The proposed tilting ridge filter design offers continuous SOBP adjustment.

Conclusions:

The proposed tilting ridge filter design provides a flexible and continuous method for varying SOBP width.
This approach offers a cost-effective solution for achieving a desired range of SOBP widths.
The method maintains high depth dose uniformity, crucial for clinical applications.