Dose Accumulator

The Dose Accumulator is a software component used in radiation therapy dose calculation systems. It maintains running totals of radiation dose delivered to specific anatomical regions by integrating incremental dose contributions from each treatment beam or fraction. This enables accurate tracking of total radiation exposure throughout a treatment course, which is essential for adaptive radiotherapy and treatment plan verification. The component operates within a dose calculation algorithm core and receives dose increment inputs from calculation modules. It validates these inputs against predefined constraints, adds them to existing cumulative totals stored in memory, updates dose-volume histograms, and provides real-time cumulative dose feedback to the treatment control system. It typically employs double-precision floating-point arithmetic to maintain accuracy and includes error-checking algorithms to prevent overflow or underflow conditions. The Dose Accumulator is designed for integration into medical devices and systems that require precise dose tracking. It operates within specified environmental and electrical parameters, including an input voltage of 24 V DC ±10%, power consumption of 5–15 W, and an operating temperature range of 0–50 °C. The device supports a dose accumulation range of 0–1000 Gy with an accuracy of ±0.5% and a resolution of 0.01 Gy. It offers data interfaces such as RS-232/485 for integration with treatment systems. The compact module measures 120 x 80 x 40 mm and weighs 0.5–1.0 kg, with ingress protection ratings from IP40 to IP54 depending on enclosure options. All specifications are reference values and must be verified with the legal manufacturer or supplier for the specific model and application.

The accumulator receives dose increment inputs from dose calculation modules, validates the data against predefined constraints, adds the new dose values to existing cumulative totals stored in memory, updates dose-volume histograms, and provides real-time cumulative dose feedback to the treatment control system. It typically employs double-precision floating-point arithmetic to maintain accuracy and includes error-checking algorithms to prevent overflow or underflow conditions.