An Innovative Mobile App and Voice Controlled Wireless Smart Water Phantom for Absolute Dose Measurement In Radiotherapy
Abstract
Purpose
This study presents the development and evaluation of a novel automated 1D water phantom integrating smart water sensing, voice control, temperature monitoring, and wireless connectivity to enhance accuracy, efficiency, and user convenience in a simplified two-switch operation for radiation dose measurements.
Methods
The system consists of a 1D motorized phantom equipped with high-precision water sensors to position the ionization chamber at exact water depths. A voice control module enables hands-free operation, allowing medical physicists to issue movement and adjustment commands. A Bluetooth-enabled mobile application provides remote control, real-time data acquisition, and live display of water temperature. A digital thermometer integrated into the phantom monitors water temperature during dose measurements to ensure calibration accuracy. The controller display provides real-time feedback on chamber position and temperature. The two-switch mechanism streamlines operation: the water sensor automatically aligns the chamber to the correct depth, while activation of the 10 cm switch moves the chamber precisely to the calibration position, minimizing manual intervention.
Results
The system successfully automates water phantom setup, reducing human error and improving workflow efficiency. Manual adjustments are minimized, enhancing measurement accuracy and reproducibility in absolute dose calibration. Integration of smart sensing, voice control, and wireless connectivity enables precise (0.1 mm) chamber positioning and efficient radiation beam calibration. The phantom allows intuitive operation, real-time monitoring, and improved safety for medical physicists.
Conclusion
This innovative 1D water phantom represents a significant advancement in radiotherapy quality assurance. By combining automation, precision, and user-friendly controls, it enhances measurement reproducibility, reduces procedural complexity, and improves operational efficiency. The system demonstrates the potential for next-generation intelligent water phantoms in clinical radiotherapy dose verification.