TY - JOUR
T1 - Detection of alpha particles with undoped poly (ethylene naphthalate)
AU - Nakamura, Hidehito
AU - Shirakawa, Yoshiyuki
AU - Kitamura, Hisashi
AU - Sato, Nobuhiro
AU - Takahashi, Sentaro
N1 - Funding Information:
This research was supported by the Kyoto University and the National Institute of Radiological Sciences . The authors thank the KUR Research Program for the Scientific Basis of Nuclear Safety for partial support at this work. The authors are grateful to Dr. T. Murata, Dr. T. Fukunaga, Dr. H. Yamana, Dr. T. Arima, Dr. S. Kobayashi, Mr. Z. Shidara, Mr. F. Murakawa, Mr. Y. Okamoto and Ms. M. Yasaku for their cooperation.
PY - 2014/3/1
Y1 - 2014/3/1
N2 - 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.
AB - 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.
KW - Alpha response
KW - Aromatic ring polymer
KW - Light yield
KW - Poly (ethylene naphthalate)
KW - Refractive index
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U2 - 10.1016/j.nima.2013.12.021
DO - 10.1016/j.nima.2013.12.021
M3 - Article
AN - SCOPUS:84891676589
SN - 0168-9002
VL - 739
SP - 6
EP - 9
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -