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Proton response of high sensitivity CR-39 copolymer |
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| Authors: | K. Ogura T. Hattori M. Asano M. Yoshida H. Omichi N. Nagaoka H. Kubota R. Katakai H. Hasegawa |
| Affiliation: | * College of Industrial Technology, Nihon University, 1-2-1 Izumi-cho, Narashino, Chiba 275, Japan ** Department of Material Development, Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, 1233 Watanuki, Takasaki, Gunma 370-12, Japan *** Department of Chemistry, Faculty of Engineering, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376, Japan **** Fukuvi Chemical Industry Co., Ltd., Sakai-cho, Sakaigun, Fukui 915-05, Japan |
| Abstract: | We studied the track response for the copolymer of CR-39 monomer with N-isopropylacrylamide (NIPAAm) as well as etching properties. It was found that copoly (CR-39/NIPAAm/Naugard 445) composed in wieght ratio of 99/1/0.01 is highly sensitive to low LET particles in the region below 10 keV/μm of LET and able to record normally incident particles of LET down to 1.5 keV/μm, recording protons up to the energy of 27 MeV. These results were compared with the responses for two types of CR-39 detectors containing a small quantity of antioxidant. The threshold energy proton registration is discussed. |
| Keywords: | Track detector CR-39/NIPAAm copolymer proton response high sensitivity |
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