What we can provide:

• Shielding Design, Evaluation –Radiation shielding designs for all types of installations, as well as post-installation shielding surveys, performed in accordance with the recommendations of NCRP Report No. 151.
• Linear Accelerator Acceptance Testing –Comprehensive acceptance testing to verify that equipment meets the manufacturer’s specifications and the Customer Acceptance Procedure (CAP).
• Beam Data Acquisition –Complete beam data acquisition for treatment planning system (TPS) commissioning, including annual quality assurance baseline scans. Measurements are performed using state-of-the-art scanning systems and appropriate detectors to ensure the highest level of accuracy.
• Treatment Planning System (TPS) Modeling – Beam modeling performed according to each treatment planning system vendor’s dose calculation algorithms.
• TPS Model Validation – Comprehensive validation performed in accordance with the recommendations of AAPM MPPG 5.a.
• TG-51 Absolute Dose Calibration – Absolute dose calibration performed according to the customer’s specified calibration geometry using AAPM TG-51 and the TG-51 Addendum. Calibration includes TLD/OSLD irradiation through IROC when required.
• Comprehensive Commissioning Report & Data Book – A complete commissioning report and organized data book documenting all measurements, analyses, and results, followed by a detailed review with your clinical team upon completion of the project.

Additional Commissioning Services:

• VMAT Commissioning – Commissioning of RapidArc®, SmartArc®, and other VMAT delivery systems.
• Portal Dosimetry Configuration – Imager calibration and patient-specific measurement acquisition for portal dosimetry model validation.
• SRS Cone & SBRT Small-Field Commissioning – Small-field beam data acquisition, validation, and end-to-end testing for stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT).
• Total Body Irradiation (TBI) Commissioning – Includes central-axis output, beam profiles, spoiler correction factors, and commissioning performed in accordance with AAPM Report No. 17.
• Total Skin Electron Therapy (TSET) Commissioning – Includes relative beam quality, beam profiles, x-ray contamination measurements, and absorbed dose calibration following the recommendations of AAPM Report No. 23.

Annual & Monthly Quality Assurance

Linear accelerators require routine monthly and annual quality assurance testing and calibration by a board-certified medical physicist to satisfy ACR accreditation and state regulatory requirements. LinearPhysics provides these services with expertise, efficiency, and flexibility. Our comprehensive quality assurance program helps ensure optimal machine performance, accurate dose delivery, and continued regulatory compliance. By partnering with LinearPhysics, your in-house physicist can remain focused on clinical responsibilities while we provide dependable, high-quality QA support.