Resolution improvement using tapered fiber for a high resolution PET block detector

S. Yamamoto*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Tapered fiber optical plate(tapered fiber) is a fiber optical plate which input size and output size is different. Tapered fiber can magnify the light photon image with low light loss. The tapered fiber may be a useful component for a high resolution positron emission tomograph (PET) block detector. Thus, investigations on resolution improvement were performed by using the tapered fiber on a PET block detector. The block detector consists of a scintillator block, a tapered fiber and a position sensitive photomultiplier tube (PSPMT). The light photon image of the scintillator block is magnified by tapered fiber which is optically coupled to the PSPMT. Light loss by using the tapered fiber was 27%. With the taper fiber, scintillator blocks consist of 11 x 11 matrix of 1.67mm x 1.67 mm x 10mm BQOs as well as 8x8 matrix of 2.0mm x 2.0mm x 10mm were resolved in two dimensional distribution. It is concluded that tapered fiber is one solution for high resolution PET block detectors.

Original languageEnglish
Pages (from-to)1074-1077
Number of pages4
JournalIEEE Transactions on Nuclear Science
Issue number3 PART 2
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering


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