Purpose: A known factor affecting the accuracy of radiochromic film dosimetry is the lateral
response artifact (LRA) induced by nonuniform response of a flatbed scanner in the direction …

Background EBT4 was newly released for radiotherapy quality assurance to improve the
signal‐to‐noise ratio in radiochromic film dosimetry. It is important to know its dose …

Purpose: This work describes a new form of the calibration curve for radiochromic dosimetry
that depends on one fit parameter. Some results are reported to show that the new curve …

Radiochromic film for spot-scanning QA provides high spatial resolution and efficiency gains
from one-shot irradiation for multiple depths. However, calibration can be a tedious …

A unique calibration equation for all radiochromic film types is proposed. The determination
of this equation comes from an analogy that the authors made between the radiochromic …

The presence of metallic prostheses during external beam radiotherapy of malignancies in
the pelvic region has the potential to strongly influence the dose distribution to the target and …

Purpose To assess the accuracy of dose calculations in the near-surface region for different
treatment planning systems (TPSs), treatment techniques, and energies to improve clinical …

Purpose: To evaluate a prototype densitometer traceable to primary optical standards and
compare its performance to an EPSON Expression® 10000XL flatbed scanner (the Epson) …

Film dosimeters provide two-dimensional measurement with high spatial resolution over a
large area. There are, in general, two types of films used as dosimeters: radiographic and …

Tokamaks are one of the strongest types of hard x-ray (HXR) sources that always generate
energetic hard x-rays because of the bremsstrahlung radiation, when energetic runaway …