Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Performance evaluation of a diode array for enhanced dynamic wedge dosimetry

T C Zhu1, L Ding, C R Liu

  • 1Department of Radiation Oncology, University of Florida, Gainesville 32610-0385, USA.

Medical Physics
|July 1, 1997
PubMed
Summary
This summary is machine-generated.

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

[Values of ATRX protein expression and ALT activation in differential diagnosis of uterine leiomyosarcoma].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2026
Same author

[Study on the correlation between dust mite component values and allergic rhinitis with or without asthma].

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2026
Same author

[Feasibility of identifying POLE-mutated endometrial carcinoma through a pathological features-based scoring system].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2026
Same author

[Prognostic stratification value of MLH1 promoter methylation in endometrioid endometrial carcinomas with a dMMR molecular phenotype].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2026
Same author

[Comparative analysis of clinicopathological and molecular characteristics between pure ovarian endometrioid carcinoma and synchronous endometrial and ovarian endometrioid carcinoma].

Zhonghua fu chan ke za zhi·2026
Same author

[Characteristics of uterine leiomyosarcoma: a clinicopathological and molecular genetic analysis of twenty-four cases].

Zhonghua bing li xue za zhi = Chinese journal of pathology·2026
Same journal

Correction to "On the shape of the radiation survival curve in tumor spheroids: The role of oxygen heterogeneity".

Medical physics·2026
Same journal

Multi-view constrained semi-supervised vertebra detection for 3D ultrasound spine volume.

Medical physics·2026
Same journal

Accuracy of quantitative <sup>177</sup>Lu SPECT/CT imaging: A systematic review.

Medical physics·2026
Same journal

Physics-constrained dual-domain network for CBCT reconstruction from orthogonal X-rays in gynecologic radiotherapy.

Medical physics·2026
Same journal

Decomposition-based harmonization for quantitative PET imaging across scanners and radiotracers.

Medical physics·2026
Same journal

Development and evaluation of an in vivo dose-based monitoring system for electron FLASH radiation therapy.

Medical physics·2026
See all related articles

The diode array (Profiler) accurately measures enhanced dynamic wedge (EDW) profiles, offering significant time savings for quality assurance and dosimetry in radiation therapy. Its performance closely matches ionization chamber measurements.

Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Radiotherapy Quality Assurance

Background:

  • Enhanced dynamic wedge (EDW) techniques are crucial in radiotherapy for shaping radiation beams.
  • Accurate dosimetry and profile measurement are essential for effective radiation therapy.
  • Diode arrays offer potential for rapid and comprehensive dose distribution assessment.

Purpose of the Study:

  • To evaluate the performance of a diode array (Profiler) for measuring EDW profiles.
  • To compare diode array measurements with ionization chamber point measurements.
  • To assess the utility of the Profiler as a quality assurance tool in radiation therapy.

Main Methods:

  • The Profiler diode array was used to measure EDW profiles at various depths.

Related Experiment Videos

  • Measurements were compared against a 0.03 cm3 ionization chamber on a linear accelerator.
  • A wide-field calibration technique was employed for diode sensitivity.
  • Isodose curves were constructed and compared with treatment planning system (TPS) data.

    • Main Results:

    • Diode array profiles agreed with ionization chamber measurements within 0.4% standard deviation in the field.
    • Penumbra region agreement showed a maximum shift of less than 2 mm.
    • Percentage depth dose agreement was within 2%, with discrepancies in the buildup region.
    • The Profiler demonstrated high accuracy and efficiency for EDW dosimetry.

    Conclusions:

    • The diode array (Profiler) is a valuable tool for quality assurance of EDW.
    • It provides accurate dosimetry measurements with substantial time savings.
    • The device shows excellent agreement with ionization chamber measurements for clinical applications.