| Autor: |
Challco, R., Roa, D., Arqque, Z., Paucar, O., Guzman, S., Gonzales, A., Montoya, M., Hernandez-Bello, J., Rosado-Mendez, Ivan Miguel, Hernández-Bojórquez, Mariana, Morales-Barcenas, Jose Hector, Galavis, Paulina Esther, Porras-Chaverri, Mariela Adelaida |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2348 Issue 1, p1-6, 6p |
| Abstrakt: |
A three-dimensional electronic detector array consisting of an active matrix readout configuration has been designed. The array comprises 31,560 submillimeter size photodiodes isotropically distributed within a 20 cm diameter semi-spherical volume of water equivalent material. The number of photodiodes in an active matrix varies from 27 to 972, and 80 active matrices with 4200 channels are connected to a data acquisition unit for readout. A low resolution 20 cm diameter semi-spherical electronic detector array was constructed to test the active matrix readout configuration response. The array consists of 135 BPW34S photodiodes distributed in a 12 cm diameter layer and one ionization chamber at the center of the semi-spherical volume. Furthermore, a quality assurance plan for a 6-field 6-MV intracranial treatment was generated to check the array's response. The array was dose calibrated using 20 x 20 cm2 parallel-opposed 6 MV photon beams from a Varian 2100 C/D linear accelerator and the integrated voltage from each photodiode was matched to the calculated dose from a treatment planning software for that photodiode location. Data analysis resulted in a percent dose difference between the measured and calculated dose of ≤5%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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