Beam focal spot intrafraction motion and gantry angle dependence: A study of Varian linac focal spot alignment.

- Slama, Luke A., Riis, Hans L, Sabet, Mahsheed, Barnes, Michael P., Ebert, Martin A., Chan, Sun, Rowshanfarzad, Pejman

Transit dosimetry in dynamic IMRT with an a-Si EPID

- Sabet, Mahsheed, Rowshanfarzad, Pejman, Menk, Fred W., Greer, Peter B.

Detection and correction for EPID and gantry sag during arc delivery using cine EPID imaging

- Rowshan Farzad, Pejman, Sabet, Mahsheed, O’Connor, Daryl J., McCowan, Peter M., McCurdy, Boyd M. C., Greer, Peter B.

EPID-based verification of the MLC performance for dynamic IMRT and VMAT

- Rowshanfarzad, Pejman, Sabet, Mahsheed, Barnes, Michael P., O'Connor, Daryl J., Greer, Peter B.

Gantry angle determination during arc IMRT: evaluation of a simple EPID-based technique and two commercial inclinometers

- Rowshanfarzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., McCowan, Peter M., McCurdy, Boyd M. C., Greer, Peter B.

Impact of backscattered radiation from the bunker structure on EPID dosimetry

- Rowshanfarzad, Pejan, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.

Improvement of Varian a-Si EPID dosimetry measurements using a lead-shielded support-arm

- Rowshanfarzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.

Investigation of a modified electronic portal imaging device for improving dosimetry in radiotherapy

- Sabet, Mahsheed

Investigation of the sag in linac secondary collimator and MLC carriage during arc deliveries

- Rowshan Farzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.

Transit dosimetry in IMRT with an a-Si EPID in direct detection configuration

- Sabet, Mahsheed, Rowshanfarzad, Pejman, Vial, Philip, Menk, Frederick W., Greer, Peter B.

Isocenter verification for linac-based stereotactic radiation therapy: review of principles and techniques

- Rowshanfarzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.

Verification of the linac isocenter for stereotactic radiosurgery using cine-EPID imaging and arc delivery

- Rowshanfarzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.

Evaluation of an a-Si EPID in direct detection configuration as a water-equivalent dosimeter for transit dosimetry

- Sabet, Mahsheed, Menk, Frederick W., Greer, Peter B.

Measurement and modeling of the effect of support arm backscatter on dosimetry with a Varian EPID

- Rowshanfarzad , Pejman, McCurdy, Boyd M. C., Sabet, Mahsheed, Lee, Christopher, O'Connor, Daryl J., Greer, Peter B.

Reduction of the effect of non-uniform backscatter from an E-type support arm of a Varian a-Si EPID used for dosimetry

- Rowshanfarzad, Pejman, Sabet, Mahsheed, O'Connor, Daryl J., Greer, Peter B.