@article{oai:repo.qst.go.jp:00047011,
 author = {Nakamura, Hidehito and Shirakawa, Yoshiyuki and Kitamura, Hisashi and Sato, Nobuhiro and Takahashi, Sentaro and 中村 秀仁 and 白川 芳幸 and 北村 尚 and 高橋 千太郎},
 journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
 month = {Mar},
 note = {There has been recent interest in the use of undoped, aromatic-ring polymers as organic scintillation materials for radiation detectors. Here, we characterise the response of poly (ethylene naphthalate) (PEN) to alpha particles. The energy response to 5486 keV alpha particles emitted from 241Am was 554±45 keV electron equivalents (keVee), with an energy resolution of 11.2±0.1%. The energy response to 6118 keV alpha particles emitted from 252Cf was 618±45 keVee, with a resolution of 8.8±0.1%. It is also important to characterise the refractive index because it determines how efficiently light propagates in scintillation materials to the photodetector. By taking into account the PEN emission spectrum, it was revealed that its effective refractive index was 1.70. Overall, the results indicate that PEN has potential as a scintillation material for the detection of alpha particles.},
 pages = {6--9},
 title = {Detection of alpha particles with undoped poly (ethylene naphthalate)},
 volume = {739},
 year = {2014}
}