Results 161 to 170 of about 244,363 (195)

EPID calibration method for transit in-vivo dosimetry

2009
The mostly used in-vivo dosimetry techniques require efforts for their implementation measurements, workload for the detector positioning and for the data analysis. The transit in-vivo dosimetry, performed by the Electronic Portal Imaging Device (EPID), avoids the problem of the detector positioning on the patient.
A. Fidanzio, S. Cilla, F. Greco, L. Azario, L. Grimaldi, D. Sabatino, A. Piermattei   +6 more
openaire   +1 more source

Lead-polystyrene transition zone dosimetry in high-energy photon beams

Radiotherapy and Oncology, 1988
In order to study the dose enhancement under sheets of lead positioned directly on the skin of patients, parallel-plate ionization chamber measurements in high-energy photon beams (4-15 MV) were performed below a lead-polystyrene interface. The dose in the transition zone can be much higher or lower than in the situation with full buildup of ...
B J, Mijnheer, R K, Rice, L M, Chin
openaire   +2 more sources

Transit-Dose Measurements in Cobalt-60 Rotation Therapy Dosimetry

Radiology, 1958
In recent years there has been a growing interest in all forms of rotational or moving-field therapy, and many different types of therapy machines designed for this kind of treatment have become available. To the medical radiation physicist, the dosimetry of rotation therapy has presented a number of interesting problems, and much useful work has been ...
openaire   +2 more sources

Application of a practical method for the isocenter pointin vivodosimetry by a transit signal

Physics in Medicine and Biology, 2007
This work reports the results of the application of a practical method to determine the in vivo dose at the isocenter point, D(iso), of brain thorax and pelvic treatments using a transit signal S(t). The use of a stable detector for the measurement of the signal S(t) (obtained by the x-ray beam transmitted through the patient) reduces many of the ...
Piermattei A., Fidanzio A., Azario L., Grimaldi L., D'Onofrio G., Cilla S., Stimato G., Gaudino D., Ramella S., D'Angelillo R., Cellini F., Trodella L., Russo A., Iadanza L., Zucca S., Fusco V., Di Napoli N., Gambacorta M. A., Balducci M., Cellini N., Deodato F., Macchia G., Morganti A. G.   +22 more
openaire   +6 more sources

Comparison of in vivo dosimetry with diode and transit EPID dosimetry

Physica Medica, 2012
L. Ricour, P. Dupuis
openaire   +1 more source

Transit dosimetry

Radiotherapy and Oncology, 1995
Vibeke N. Hansen, Phil M. Evans, William Swindell   +2 more
openaire   +1 more source

PO-1765 Transit Dosimetry of SBRT with Electronic Portal Dosimetry Device in Patient with Spinal Implant

Radiotherapy and Oncology, 2023
Y. Yedekci, A. Elmali, G. Demirkiran, G. Ozyigit, G. Yazici   +4 more
openaire   +1 more source

VALIDATION OF A TRANSIT DOSIMETRY SOFTWARE WITH IONIZATION CHAMBER MEASUREMENTS

Physica Medica, 2022
Savannah Pié-Padró, David Sánchez-Artuñedo   +1 more
openaire   +1 more source

«Transit» in vivo dosimetry in external dosimetry: Recommendations from experts mandated by SFPM

Physica Medica, 2015
V. Marchesi, L. Berger, C. Boutry, P. Dupuis, S. Crespin, P. François   +5 more
openaire   +1 more source

Transit dosimetry: The state of the art

Physica Medica, 2014
openaire   +1 more source