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Persistent URL http://purl.org/net/epubs/work/58478327
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Record Id 58478327
Title IONIZATION PROFILE MONITOR FOR IN-VIVO DOSIMETRY IN MEDICAL ACCELERATORS
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Abstract In-vivo dosimetry is essential to deliver a precise dose to patients in ion beam therapy. Real-time dose monitor- ing without disturbing the beam improves patient safety and treatment efficiency by increasing the precision of the dose delivery. It is especially critical for emerging treatment modalities like FLASH therapy due to narrow dose toler- ance. Existing real-time dosimetry devices are invasive to the beam, necessitating the development of a non-invasive dosimetry solution. The gas-jet based beam profile moni- tor developed at the Cockcroft Institute (CI), is being stud- ied for application in medical accelerator facilities. Recent measurements at the Dalton Cumbrian Facility, UK yielded promising results for beam monitoring at energies equivalent to that of medical beams. These studies have indicated the need to improve the gas-jet based Ionization Profile Monitor (IPM) to monitor dose in real time. A new IPM detector system is under development at CI to reduce the monitor size and complexity, and increase its sensitivity, resulting in fast acquisition, paving the way for real-time in-vivo dose monitoring. This contribution presents the design of the optimized IPM detector, and its working principle based on electrostatic field and particle trajectory simulations.
Organisation CI , STFC , LhARA
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Language English (EN)
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Paper In Conference Proceedings In 15th International Particle Conference (IPAC24), Nashville, TN, May 2024, (2024). 2024