Results 201 to 210 of about 7,705 (226)

Investigation of the optimal backscatter for an aSi electronic portal imaging device

Physics in Medicine and Biology, 2004
The effects of backscattered radiation on the dosimetric response of the Varian aS500 amorphous silicon electronic portal imaging device (EPID) are studied. Measurements demonstrate that radiation backscattered from the EPID mechanical support structure causes 5% asymmetries in the detected signal. To minimize the effect of backscattered radiation from
Lung, Ko, Jong Oh, Kim, Jeffrey V, Siebers   +2 more
openaire   +2 more sources

The use of an electronic portal imaging device for exit dosimetry

Radiotherapy and Oncology, 1995
Gardone ...
Stucchi P., Conte L., Mordacchini C., Bianchi C., Monciardini M., NOVARIO, RAFFAELE, Cassani E.   +6 more
openaire   +4 more sources

Quality assurance of electron beams using a Varian electronic portal imaging device

Physics in Medicine and Biology, 2013
The feasibility of utilizing an electronic portal imaging device (EPID) for the quality assurance of electron beams was investigated. This work was conducted on a Varian 2100iX machine equipped with an amorphous silicon (aS1000) portal imager. The linearity of the imager pixel response as a function of exposed dose was first confirmed.
Y, Wang, R, Heaton, B, Norrlinger, M, Islam   +3 more
openaire   +2 more sources

Verification of compensator thicknesses using a fluoroscopic electronic portal imaging device

Medical Physics, 1999
A method is presented for verification of compensator thicknesses using a fluoroscopic electronic portal imaging device (EPID). The method is based on the measured transmission through the compensator, defined by the ratio of the portal dose with the compensator in the beam and the portal dose without the compensator in the beam.
Pasma, KL (Kasper), Kroonwijk, M, Dieren, EB, Visser, AG (Andries), Heijmen, Ben   +4 more
openaire   +3 more sources

Electronic portal imaging devices

2022
openaire   +1 more source

Electronic Portal Imaging Devices (EPID)

2013
Anthony E. Dragun, Paul J. Schilling, Tod W. Speer, Feng-Ming Kong, Jingbo Wang, Hedvig Hricak, Oguz Akin, Alberto Vargas, Paula R. Salanitro, Paula R. Salanitro, Paula R. Salanitro, John W. Wong, Erik Limbergen, Christin A. Knowlton, Michelle Kolton Mackay, Filip T. Troicki, Jaganmohan Poli, Filip T. Troicki, Jaganmohan Poli, Filip T. Troicki, Jaganmohan Poli, Claudia E. Rübe, James H. Brashears, Susan M. Varnum, Marianne B. Sowa, William F. Morgan, Tod W. Speer, Rene Rubin, Claudia E. Rübe, Brandon J. Fisher, Larry C. Daugherty, Charlie Ma, Lu Wang, Daniel J. Indelicato, Robert H. Sagerman, Curt Heese, Stephan Mose, James H. Brashears, Lindsay G. Jensen, Brent S. Rose, Arno J. Mundt, Albert S. DeNittis, Filip T. Troicki, Jaganmohan Poli, Carlos A. Perez, Wade L. Thorstad, Filip T. Troicki, Daniel J. Indelicato, Daniel J. Indelicato, Robert H. Sagerman, Christin A. Knowlton, Michelle Kolton Mackay, Christin A. Knowlton, Michelle Kolton Mackay, Albert S. DeNittis, Cheng B. Saw, Theodore E. Yaeger, Jo Ann Chalal, Carlos A. Perez, Wade L. Thorstad, Jorge E. Freire, Carol L. Shields, Jerry A. Shields, Luther W. Brady, Luther W. Brady, Jay E. Reiff   +65 more
openaire   +1 more source

The use of an electronic portal imaging device for exit dosimetry

1997
Salt Lake City, Utah ...
STUCCHI P., CONTE, LEOPOLDO, MORDACCHINI C., BIANCHI C., MONCIARDINI M., NOVARIO, RAFFAELE, CASSANI E., ANTOGNONI P., TORDIGLIONE M.   +8 more
openaire   +3 more sources

Electronic Portal Imaging Device Dosimetry

2017
Boyd McCurdy, Peter Greer, James Bedford
openaire   +1 more source

Quality metrics in electronic portal imaging devices

Physica Medica, 2014
M. Tzomakas, A. Episkopakis, N. Kalyvas, I. Kandarakis, G. Panayiotakis   +4 more
openaire   +1 more source

Electronic portal imaging devices to verify electron beam treatment

International Journal of Radiation Oncology*Biology*Physics, 2002
W.W Baus, P Geyer, B Kober
openaire   +1 more source