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- PZT FOR MEASURING ENERGY FLUENCE RATE of X-RAY USED IN SUPERFICIAL CANCER THERAPY
- Universidade Estadual Paulista (UNESP)
- Universidade Federal de Mato Grosso do Sul (UFMS)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- A PZT detector is used for measuring the energy fluence rate of X-ray pulses produced by superficial cancer therapy equipment (orthovoltage range). The instrument consists of a pyroelectric sensor, a low-noise high-sensitivity, current-to-voltage converter, a microcontroller and a digital display. The main element of the instrument is a pyroelectric sensor which consists of an iron-doped lead zirconate titanate ceramic disk. The response of the instrument exhibits a nonlinear relationship with the energy fluence rate of the radiation and the precision is better than 3%. The equipment is inexpensive, rugged, simple to construct, and has good long-term stability.
- Instrumentation Science & Technology. Philadelphia: Taylor & Francis Inc, v. 38, n. 3, p. 210-219, 2010.
- Taylor & Francis Inc
- energy fluence rate
- orthovoltage range
- pyroelectric sensor
- superficial cancer
- Acesso restrito
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