Growth of Ternary Eutectic Scintillators for High Resolution Radiation Imaging

Takizawa, Yui; Kamada, Kei; Kutsuzawa, Naoko; Yoshino, Masao; Yamamoto, S.; Kim, Kyoung Jin; Murakami, Rikito; Kochurikhin, Vladimir V.; Yoshikawa, Akira

doi:10.1109/nss/mic44867.2021.9875656

Cited by 1 publication

(2 citation statements)

References 11 publications

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“…In addition, OCS plates are expected to have similar position-resolving performance as optical-guiding-type eutectic scintillators. 22,38) Although it has been difficult to produce large-area plates with uniformity in the case of eutectic scintillators, the mass production of OCS and large OCS plates is possible using a production method similar to that used for optical fibers.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study, a eutectic scintillator was reported as an optical-guiding-type scintillator imaging plate using total reflection. [17][18][19][20][21][22] The resolution is typically reduced when the scintillator thickness is increased to enhance the sensitivity of a normal imaging plate; however, this is no longer the case when the scintillator plate has optical-guiding performance. Hence, the OCS plate has the potential to simultaneously achieve both a high positional resolution and high sensitivity.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Prototype fabrication of optical-guiding Tl:CsI crystal scintillators and investigation of the crystallization process

Yajima¹,

Kamada²,

Murakami³

et al. 2023

Jpn. J. Appl. Phys.

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In this study, optical-guiding crystal scintillator (OCS) fibers and bundled plates were fabricated. Considering the performance and melting point of the halide scintillator and softening point of the glass, Tl:CsI was selected as the core and borosilicate glass as the cladding. The fabricated OCS had a scintillator in the core and glass in the cladding. The scintillator was remelted and unidirectionally solidified to remove the voids in the OCS and to form a single crystal. This makes OCS a scintillator fiber with high sensitivity to γ-rays and X-rays and optical-guiding performance. The OCS plate was also able to realize a structure with bundles of OCSs with diameters of several tens of μm. The OCS plate is expected to be a high-resolution and high-sensitivity imaging plate because of its optical-guiding performance.

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Section: Discussionmentioning

confidence: 99%