著者

Nakamura H. Shirakawa Y. Takahashi S. Shimizu H.

出版者

EDP Science

雑誌

EPL (Europhysics Letters) (ISSN:02955075)

巻号頁・発行日

vol.95, no.2, 2011-07-01

被引用文献数

69

---

産学官連携により、革新的な放射線蛍光プラスチック(商標名「シンチレックス」申請中)の開発に成功~安価で高性能な放射線検出器の製造に大きく前進~. 京都大学プレスリリース. 2011-06-29.Various scintillation devices are used in many countries and wide scientific fields. Key elements that determine the performance of a scintillation device are the number of photons emitted per incident radiation event and the emission of easy-to-measure blue photons. It is generally known that only materials with very complex compositions perform well as scintillators. However, we demonstrated that the scintillation performance of a newly developed plastic such as 100 percent pure polyethylene naphthalate exceeds that of conventional organic scintillators. By measuring the light output spectra and emission spectra of several samples, we revealed that the plastic emits a high number of photons per incident radiation event (~10500 photons/MeV), and, surprisingly, deep-blue photons (425 nm). Even though the plastic has a simple composition, it could replace the expensive organic scintillators that have been used in many applications.