Open Access. Powered by Scholars. Published by Universities.®

Science and Technology Studies Commons

Open Access. Powered by Scholars. Published by Universities.®

2015

Anthony A Espinoza Mr

Dosimetry

File Type

Articles 1 - 2 of 2

Full-Text Articles in Science and Technology Studies

Characterization Of An Innovative P-Type Epitaxial Diode For Dosimetry In Modern External Beam Radiotherapy, A Aldosari, A Espinoza, D Robinson, I Fuduli, C Porumb, S Alshaikh, M Carolan, M Lerch, V Perevertaylo, Anatoly Rosenfeld, M Petasecca Jan 2015

Characterization Of An Innovative P-Type Epitaxial Diode For Dosimetry In Modern External Beam Radiotherapy, A Aldosari, A Espinoza, D Robinson, I Fuduli, C Porumb, S Alshaikh, M Carolan, M Lerch, V Perevertaylo, Anatoly Rosenfeld, M Petasecca

Anthony A Espinoza Mr

Due to the ever-increasing complexity of treatment modalities in radiation therapy, there has been a greater need for detectors to perform quality assurance to ensure patients are treated correctly and safely. Modern radiation therapy techniques involve small field sizes, high dose gradients, and varying intensity of energy and rate. The ideal dosimeter for this treatment should display high spatial resolution, high linearity, accuracy, and radiation hardness. Silicon detectors have been widely used for radiotherapy measurements and have many attractive qualities as a dosimeter; weaknesses of silicon detectors are, however, decreases in sensitivity with accumulated dose. The Centre for Medical Radiation …


X-Tream: A Novel Dosimetry System For Synchrotron Microbeam Radiation Therapy, M Petasecca, A Cullen, I Fuduli, A Espinoza, C Porumb, C Stanton, A H. Aldosari, E Brauer-Krisch, H Requardt, A Bravin, V Perevertaylo, Anatoly B. Rosenfeld, M L. F Lerch Jan 2015

X-Tream: A Novel Dosimetry System For Synchrotron Microbeam Radiation Therapy, M Petasecca, A Cullen, I Fuduli, A Espinoza, C Porumb, C Stanton, A H. Aldosari, E Brauer-Krisch, H Requardt, A Bravin, V Perevertaylo, Anatoly B. Rosenfeld, M L. F Lerch

Anthony A Espinoza Mr

Microbeam Radiation Therapy (MRT) is a radiation treatment technique under development for inoperable brain tumors. MRT is based on the use of a synchrotron generated X-ray beam with an extremely high dose rate ( ~ 20 kGy/sec), striated into an array of X-ray micro-blades. In order to advance to clinical trials, a real-time dosimeter with excellent spatial resolution must be developed for absolute dosimetry. The design of a real-time dosimeter for such a radiation scenario represents a significant challenge due to the high photon flux and vertically striated radiation field, leading to very steep lateral dose gradients. This article analyses …