NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Dosimetric characterization of a new directional low-dose rate brachytherapy source

Published

Author(s)

Michael G. Mitch, Larry A. DeWerd, Manik Aima, Clifford G. Hammer, Wesley S. Culberson

Abstract

CivaTech Oncology Inc. (Durham, NC) has developed a novel low-dose rate (LDR) brachytherapy source called the CivaSheet. The source is a planar array of discrete elements (“CivaDots") which are directional in nature. This work investigates the repeatability and reproducibility of a primary source strength standard for the CivaDot, and characterizes the CivaDot dose distribution by performing in-phantom measurements and Monte Carlo (MC) simulations. Existing dosimetric formalisms were adapted to accommodate a directional source, and other distinguishing characteristics including the presence of gold shield x-ray fuorescence were addressed in this investigation.
Citation
Medical Physics
Volume
45
Issue
8
Pub Type
Journals

Download Paper

https://doi.org/10.1002/mp.12994

Keywords

Brachytherapy, dosimetry, directional sources, TG-43, EBT3 film
Ionizing radiation metrology and Radiation

Citation

Mitch, M. , DeWerd, L. , Aima, M. , , C. and , W. (2018), Dosimetric characterization of a new directional low-dose rate brachytherapy source, Medical Physics, [online], https://doi.org/10.1002/mp.12994 (Accessed October 20, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created June 21, 2018, Updated November 10, 2018
Was this page helpful?