A new type of scintillation-light-transmission ZnS(Ag)/NE102A phoswich detector has been developed, in which scintillation light emitted from the phoswich is transmitted through an optical fiber to a photomultiplier tube. By adjusting wavelength of the scintillation light to transmittance region of the optical fiber, the phoswich detector was capable of successfully performing simultaneous counting of alpha- and beta (including gamma)-rays. In addition, the detector has been applied to a dip-type inline monitor, which directly contacts with actinide solution. The detector will be available especially in a narrow and/or isolated space such as glove box and hot cell.
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Yasuda et al. (2000) studied this question.
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