ARVIND KUMAR - Graphic Era University, Dehradun, Uttarakhand, India ۲۴۸۰۰۲ ۲. Department of Radiation Oncology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India ۲۴۹۲۰۳
KIRAN SHARMA - Graphic Era University, Dehradun, Uttarakhand, India ۲۴۸۰۰۲
CHANDI BHATT - Sarvodaya Hospital & Medical Research Centre, Faridabad (Delhi/NCR), India ۱۲۱۰۰۶
Suresh Yadav - Department of Radiation Oncology, Gandhi Medical College , Bhopal-۴۶۲۰۰۱ (M.P.), India
SWATI VERMA - Department of Radiation Oncology, All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India ۲۴۹۲۰۳
SOUGATA BASU - Department of Radiation Oncology, All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India ۲۴۹۲۰۳
POOJA DHAUNDIYAL - Department of Radiation Oncology, All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India ۲۴۹۲۰۳
DEEPAK KAUSHIK - Department of Radiation Oncology, All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India ۲۴۹۲۰۳
DINESH SAROJ - Chirayu Cancer Hospital Radiotherapy Depatment Chirayu Medical College Hospital Bhopal Near Bairagarh
Manoj Gupta - Department of Radiation Oncology, All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand, India ۲۴۹۲۰۳

Introduction: Popularly, teletherapy (telecobalt/LA) equipment is based on a C-arm gantry system. Recently, a fast O-ring gantry system introduced a medical linear accelerator (LA) to smoothen the workflow of treatment of cancer patients because of the increasing trend of the number of cancer cases over the past few years. This study aimed to analyze the commissioning parameters and validation of the O-ring gantry-based LA for improved radiotherapy techniques. Material and Methods: Three-dimensional (۳D) radiation field analyzer (RFA) used to commission HalcyonTM LA. It is used for measuring percent depth dose (PDD), profiles, and output factors. Results: TPS data was validated by comparing it with our measured data. Plans per the TG-۱۱۹ protocol showed good agreement between treatment planning systems (TPS) calculated and measured doses. For patient-specific, QA plans showed good agreement with gamma evaluation criteria. Conclusion: Commissioning and validation of O-ring gantry system HalcyonTM LA was performed successfully.

Linear accelerator O, ring gantry Commissioning Validation Radiotherapy technique