Experimental study reveals that correlation focusing arrays improve spatial resolution in acoustic brightness thermometry at the expense of sensitivity, indicating key design trade-offs.
Theoretical and experimental studies on the localization of heated objects by the methods of acoustic brightness thermometry are carried out. It is demonstrated that, in the case of using a single focusing array, the spatial localization of heated objects depends on the size of the source. One-and two-dimensional tomography of a real heated source is performed by an acoustic thermal tomograph with a focusing array. The results agree well with the data calculated according to the suggested model. The applicability of correlation focusing acoustic brightness thermometry to the localization of a heated source is investigated both theoretically and experimentally. It is demonstrated that a considerable increase in the spatial resolution of the method leads to a significant loss in sensitivity.
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В. А. Вилков (2005) studied this question.
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