Abstract
Abstract Photo-acoustics, or, in general, particle acoustics (PA) offers new potentials in various fields of radiation dosimetry. As a spectrometric method it can be used to obtain new information on material properties for a wide range of dosimetric materials including opaque and powdered samples, and to measure dose by absorption spectrometry. On the other hand, as a calorimetric method, it can be used as a direct means of measuring the absorbed dose rate of pulsed or chopped radiation beams of any kind of energetic particles. The PA spectroscopy (PAS) response of powdered LiF (TLD-100) that had been exposed to 60Co gamma rays was investigated and it was found that the absorption peaks at 380 and 444 nm provided a means for measuring absorbed dose in the 0.003-1 MGy range. PA signals generated by 4 to 5 MeV electrons from a linac were detected and the energy deposition profiles in Al, Cu and Fe were measured.
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