Electronic portal imaging devices (EPIDs) have been the preferred tools for verification of
patient positioning for radiotherapy in recent decades. Since EPID images contain dose …

The dosimetric impact from devices external to the patient is a complex combination of
increased skin dose, reduced tumor dose, and altered dose distribution. Although small …

From background physics and biological models to the latest imaging and treatment
modalities, the Handbook of Radiotherapy Physics: Theory and Practice covers all …

Purpose Electronic portal imaging devices (EPIDs) have been widely utilized for patient‐
specific quality assurance (PSQA) and their use for transit dosimetry applications is …

External beam radiotherapy with photon beams is a highly accurate treatment modality, but
requires extensive quality assurance programs to confirm that radiation therapy will be or …

The goal of radiation therapy is to achieve maximal therapeutic benefit expressed in terms of
a high probability of local control of disease with minimal side effects. Physically this often …

Electronic portal imaging devices (EPIDs) are not only applied for patient setup verification
and detection of organ motion but are also increasingly used for dosimetric verification. The …

Purpose: Radiation treatments are trending toward delivering higher doses per fraction
under stereotactic radiosurgery and hypofractionated treatment regimens. There is a need …

Purpose: Amorphous silicon EPIDs have been used for planar dose verification in IMRT
treatments for many years. The support arm used to attach some types of EPIDs to linear …

Dosimetric properties of an amorphous‐silicon electronic portal imaging device (EPID)
operated in a real‐time acquisition mode were investigated. This mode will be essential for …