Study of the correlation of scintillation decay and emission wavelength

Takayuki Yanagida, Yutaka Fujimoto, Akihiro Yamaji, Noriaki Kawaguchi, Kei Kamada, Daisuke Totsuka, Kentaro Fukuda, Kohei Yamanoi, Ryosuke Nishi, Shunsuke Kurosawa, Toshihiko Shimizu, Nobuhiko Sarukura

Research output: Contribution to journalArticlepeer-review

76 Citations (Scopus)


In photoluminescence which directly excites the emission center of phosphor material is known to have a correlation between the emission wavelength and the decay time based on quantum mechanics. In scintillation phenomenon, host lattice of the material is first excited by ionizing radiation and then the excitation energy is transferred to emission centers. For the first time, we investigated the correlation between the scintillation decay and the emission wavelength by using pulse X-ray equipped streak camera system which could observe time and wavelength resolved scintillation phenomenon. Investigated materials were Ce3+, Pr3+ and Nd3+ doped oxides and fluorides which all showed 5d-4f transition based emission. As a result, we obtained the relation that τ (scintillation decay time) was proportional to the λ2.15 (emission wavelength).

Original languageEnglish
Pages (from-to)99-102
Number of pages4
JournalRadiation Measurements
Publication statusPublished - 2013 Aug


  • 5d-4f transition
  • Scintillation detector
  • Scintillator
  • Streak camera
  • X-ray


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