Measurement of orthovoltage X-ray intensity with a lithium niobate transducer

A microcontrolled instrument for measuring the energy fluence rate (or intensity) of X-ray pulses in the orthovoltage range of 120 to 300 kV is described. The prototype instrument consists of a pyroelectric sensor, a low-noise highsensitivity current-to-voltage converter, a microcontroller and a digital display. The response of the instrument is nonlinear with the intensity of the radiation. The precision is better than 3%. The equipment is inexpensive, rugged, simple to construct and has good long-term stability. © 2009 Springer-Verlag.

Keywords

Energy fluence rate, Microcontrolled instrument, Orthovoltage range, Pyroelectric sensor, X-ray intensity, Energy fluences, Orthovoltage, Pyroelectric sensors, X ray intensity, Biomedical engineering, Dosimetry, Instruments, Lithium, Niobium compounds, Physics, Radiation shielding, Sensors, X rays, Biological radiation effects