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Real-time dosimetry with radiochromic films
Pierluigi Casolaro1,2, Luigi Campajola3,4, Giovanni Breglio5
1University of Napoli Federico II, Department of Physics, I-80126, Napoli, Italy. casolaro@na.infn.it.
Scientific Reports
|March 31, 2019
Summary
This study introduces a new real-time method for reading radiochromic films, enhancing accuracy and extending the dynamic range for radiation dosimetry applications.
Area of Science:
- Radiation Physics
- Medical Physics
- Dosimetry
Background:
- Radiochromic film dosimetry is a reliable, accurate, and cost-effective method widely used in radiation physics for over two decades.
- Current methods for reading radiochromic films require post-exposure analysis, limiting real-time dose assessment.
Purpose of the Study:
- To develop an innovative methodology for the real-time reading of radiochromic films.
- To improve the precision and accuracy of radiation dose measurements.
- To extend the dynamic range of radiochromic films, specifically EBT3 Gafchromic films.
Main Methods:
- Implementation of an opto-electronic instrumentation system utilizing an optical fiber probe.
- Real-time determination of optical changes in radiochromic films induced by radiation.
- Application of the methodology to EBT3 Gafchromic films.
Main Results:
- Successful development of a real-time radiochromic film reading methodology.
- Demonstration of high precision and accuracy in dose measurements.
- Extension of the dynamic range of EBT3 Gafchromic films by over one order of magnitude.
Conclusions:
- The proposed opto-electronic method offers significant advantages over traditional reading techniques for radiochromic films.
- This innovation enables real-time dose monitoring, crucial for specific radiation physics and medical physics applications.
- A National Patent was filed in January 2018, highlighting the novelty and potential impact of this technology.
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