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MONDO: a neutron tracker for particle therapy secondary emission characterisation
M Marafini1,2, L Gasparini3, R Mirabelli1,4
1INFN Sezione di Roma, Rome, Italy.
Physics in Medicine and Biology
|March 29, 2017
Summary
This study introduces the MONDO detector for precisely measuring neutrons in particle therapy. Accurate neutron detection improves treatment planning, reducing risks to healthy tissues and the whole body.
Area of Science:
- Medical Physics
- Nuclear Instrumentation
- Radiation Oncology
Background:
- Particle therapy utilizes ions for precise tumour irradiation, sparing healthy tissue.
- Current dose monitoring relies on photons and charged particles, neglecting the significant neutron component.
- Neutrons pose a risk of dose deposition far from the target, necessitating precise characterization.
Purpose of the Study:
- To address the need for precise neutron measurement in particle therapy for improved treatment planning.
- To develop a tracking detector (MONDO) capable of detecting fast and ultrafast neutrons.
- To characterize neutron abundance, emission point, and production energy for enhanced safety.
Main Methods:
- Utilizing Monte Carlo (MC) simulations with FLUKA software for preliminary analysis.
- Implementing digital SiPM (DSiPM) readout and exploring new tailored implementations.
- Reconstructing two consecutive elastic neutron scattering interactions for energy and direction measurement.
Main Results:
- Presents preliminary MC simulation results for the MONDO detector.
- Discusses DSiPM readout implementation and new detector readout strategies.
- Reports on the attainable neutron detection efficiency for the proposed tracking method.
Conclusions:
- Precise neutron characterization is crucial for improving particle therapy treatment planning systems (TPS).
- The MONDO project aims to overcome technical challenges in neutron detection for hadrontherapy.
- The developed tracking strategy shows promise for accurate neutron energy and direction measurement, enhancing patient safety.
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