X-ray dose detector based on color changing of light-emitting polymer–metal complex hybrid material.
| dc.contributor.author | Schimitberger, Thiago | |
| dc.contributor.author | Ferreira, Giovana Ribeiro | |
| dc.contributor.author | Saraiva, Marcelo Frota | |
| dc.contributor.author | Bianchi, Andrea Gomes Campos | |
| dc.contributor.author | Bianchi, Rodrigo Fernando | |
| dc.date.accessioned | 2012-07-10T15:08:06Z | |
| dc.date.available | 2012-07-10T15:08:06Z | |
| dc.date.issued | 2012 | |
| dc.description.abstract | We report on the design, fabrication and performance of a poly (2-methoxy-5(2_-ethylhexyloxy)- p-phenylenevinylene)/tris-(8-hydroxyquinoline)aluminum (MEH-PPV/Alq3) X-ray dose detector for improving safety for cancer patients shortly before radiation therapy. The detector consists of an inexpen-sive (<US$ 1) organic device that is irreversibly color changing from red, to yellow, to green and measures the delivered dose from the radiation beams of a linear accelerator (6 MV) in the range of 0–40 Gy. The effect of radiation on the optical properties of MEH-PPV/Alq3 was described and we observed a strong correlation between the photoemission spectrum of Alq3 and the photoemission and absorption spectra of MEH-PPV degraded by radiation. A series of tests was conducted on the performance of the organic detector in measuring depth-dose distribution of photon beams in a water phantom and demonstrating linearity in the shift of PL and absorption as functions of the dose. These results have enabled the qual-itative and quantitative analysis of how the radiation instability of optical properties of MEH-PPV/Alq3 can be used to develop an innovative organic device for radiation therapy. | pt_BR |
| dc.identifier.citation | SCHIMITBERGER, T. ; et al. X-ray dose detector based on color changing of light-emitting polymer–metal complex hybrid material. Sensors and Actuators B: Chemical, v. 168, n. 20, p. 131-137, jun. 2012. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0925400512003322>. Acesso em: 10 jul. 2012. | pt_BR |
| dc.identifier.issn | 09254005 | |
| dc.identifier.uri | http://www.repositorio.ufop.br/handle/123456789/1044 | |
| dc.language.iso | en_US | pt_BR |
| dc.publisher | Sensors and Actuators B: Chemical | pt_BR |
| dc.rights.license | O periódico Sensors and Actuators B: Chemical concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3460340615308. | |
| dc.subject | Dosimeter | pt_BR |
| dc.subject | Optical sensor | pt_BR |
| dc.subject | Radiotherapy | pt_BR |
| dc.subject | Semiconducting polymer | pt_BR |
| dc.subject | Organic device | pt_BR |
| dc.title | X-ray dose detector based on color changing of light-emitting polymer–metal complex hybrid material. | pt_BR |
| dc.type | Artigo publicado em periodico | pt_BR |