New methods for optical distance indicator and gantry angle quality control tests in medical linear accelerators: image processing by using a 3D phantom
Radiation Oncology Journal. 2015;33(1):42 
SU-FF-I-10: A New Method to Perform CT Gantry Tilt Angle Quality Control Using Commercially Available Phantom
Medical Physics. 2007;34(6Part2):2340-2340
VMAT linear accelerator commissioning and quality assurance: dose control and gantry speed tests
Journal of Applied Clinical Medical Physics. 2016;17(3):246-261
A personal-computer-based method to obtain “star-shots” of mechanical and optical isocenters for gantry rotation of linear accelerators
Medical Physics. 2002;29(12):2753-2755
Considering imperfections using 3D imaging system in angle obtaining, angle signal distance computing and multivariate distance graphing
Computer Methods and Programs in Biomedicine. 1995;47(3):197-204
Technical innovation to calibrate the gantry angle indicators of linear accelerators
Journal of Applied Clinical Medical Physics. 2001;2(1):54-58
An improved method to accurately calibrate the gantry angle indicators of the radiotherapy linear accelerators
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2007;576(2-3):441-445
SU-E-T-262: Comparing Linear Accelerator Gantry Angle Measurements Using An EPID and Spirit Level
Medical Physics. 2013;40(6Part14):264-265
Gantry-angle resolved VMAT pretreatment verification using EPID image prediction
Medical Physics. 2013;40(8):081715
SU-E-T-100: How to Improve the Dose Accuracy for Gantry Angle Dependent Patient Specific IMRT QA Using 2D Ion Chamber Array with Octavius Phantom
Medical Physics. 2012;39(6Part11):3725-3725