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This research evaluates the performance of LD-V1 radiochromic film for low-dose measurements in mega-voltage radiotherapy quality assurance.

April 12, 2026Open Access

Assessment of LD‐V1 radiochromic film low‐dose performance for mega‐voltage radiotherapy quality assurance

Key Points

This research evaluates the performance of LD-V1 radiochromic film for low-dose measurements in mega-voltage radiotherapy quality assurance.
Comparison of LD-V1 film with EBT4 for low-dose measurements.
Assessment of low-dose sensitivity under various conditions.
Evaluation of energy and scanning-orientation effects.
LD-V1 exhibits superior low-dose sensitivity compared to EBT4.
Significant variations in performance based on energy levels and scanning orientation are observed.
Consistent calibration and handling are critical for optimal accuracy.

Abstract

LD-V1 demonstrates suitability for low-dose MV measurements and exhibits improved low-dose sensitivity relative to EBT4, indicating its potential value for MLC QA in highly dynamic treatment deliveries. Nonetheless, its pronounced energy and scanning-orientation dependence underscores the need for rigorous and consistent calibration and handling procedures.

Assessment of LD‐V1 radiochromic film low‐dose performance for mega‐voltage radiotherapy quality assurance

Key Points

Abstract

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