Characteristics of the copolymerized CR-39/DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays
A new copolymer of CR-39 and DAP resin was developed for the selective detection of ultra heavy nuclei in galactic cosmic rays. The track registration sensitivity for heavy ions with various Z ∗/ β was verified for copolymers mixing CR-39 (BARYOTRAK) with various concentrations of DAP using heavy io...
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| Veröffentlicht in: | Radiation measurements 2009-10, Vol.44 (9), p.775-778 |
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| creator | Kodaira, S. Yasuda, N. Kawashima, H. Kurano, M. Hasebe, N. Doke, T. Ota, S. Tsuruta, T. Hasegawa, H. Sakai, S. Nishi, T. Ogura, K. |
| description | A new copolymer of CR-39 and DAP resin was developed for the selective detection of ultra heavy nuclei in galactic cosmic rays. The track registration sensitivity for heavy ions with various
Z
∗/
β was verified for copolymers mixing CR-39 (BARYOTRAK) with various concentrations of DAP using heavy ion beams at the HIMAC accelerator. In order to realize sufficient polymerization of CR-39/DAP copolymer, the optimum fabricating method was also verified by modifying the concentration of the initiator and temperature–time curing cycle for the copolymerization. CR-39 (BARYOTRAK) used for the base material of copolymerization has many advantages: 1) high uniformity of detector response, 2) extremely clear surface condition after etching, and 3) excellent charge and mass resolutions for heavy ions. The surface condition of the copolymer after etching is remarkably improved by using the BARYOTRAK monomer and its track registration sensitivity is controllable by changing the DAP concentration. However the detection threshold of the CR-39 (BARYOTRAK)/DAP copolymer is not yet satisfactory. |
| doi_str_mv | 10.1016/j.radmeas.2009.10.050 |
| format | Article |
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Z
∗/
β was verified for copolymers mixing CR-39 (BARYOTRAK) with various concentrations of DAP using heavy ion beams at the HIMAC accelerator. In order to realize sufficient polymerization of CR-39/DAP copolymer, the optimum fabricating method was also verified by modifying the concentration of the initiator and temperature–time curing cycle for the copolymerization. CR-39 (BARYOTRAK) used for the base material of copolymerization has many advantages: 1) high uniformity of detector response, 2) extremely clear surface condition after etching, and 3) excellent charge and mass resolutions for heavy ions. The surface condition of the copolymer after etching is remarkably improved by using the BARYOTRAK monomer and its track registration sensitivity is controllable by changing the DAP concentration. However the detection threshold of the CR-39 (BARYOTRAK)/DAP copolymer is not yet satisfactory.</description><identifier>ISSN: 1350-4487</identifier><identifier>EISSN: 1879-0925</identifier><identifier>DOI: 10.1016/j.radmeas.2009.10.050</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>CR-39/DAP (diallyl phthalate) copolymer ; Detection threshold ; Earth sciences ; Earth, ocean, space ; Exact sciences and technology ; Galactic cosmic rays ; Geochronology ; Isotope geochemistry. Geochronology ; Track detector ; Ultra heavy nuclei</subject><ispartof>Radiation measurements, 2009-10, Vol.44 (9), p.775-778</ispartof><rights>2009 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c414t-e5aa18672e2c9779672b1a018b4e8d2633d826841d8782ce7fcd12b47df3f0743</citedby><cites>FETCH-LOGICAL-c414t-e5aa18672e2c9779672b1a018b4e8d2633d826841d8782ce7fcd12b47df3f0743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S1350448709002261$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=22415623$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Kodaira, S.</creatorcontrib><creatorcontrib>Yasuda, N.</creatorcontrib><creatorcontrib>Kawashima, H.</creatorcontrib><creatorcontrib>Kurano, M.</creatorcontrib><creatorcontrib>Hasebe, N.</creatorcontrib><creatorcontrib>Doke, T.</creatorcontrib><creatorcontrib>Ota, S.</creatorcontrib><creatorcontrib>Tsuruta, T.</creatorcontrib><creatorcontrib>Hasegawa, H.</creatorcontrib><creatorcontrib>Sakai, S.</creatorcontrib><creatorcontrib>Nishi, T.</creatorcontrib><creatorcontrib>Ogura, K.</creatorcontrib><title>Characteristics of the copolymerized CR-39/DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays</title><title>Radiation measurements</title><description>A new copolymer of CR-39 and DAP resin was developed for the selective detection of ultra heavy nuclei in galactic cosmic rays. The track registration sensitivity for heavy ions with various
Z
∗/
β was verified for copolymers mixing CR-39 (BARYOTRAK) with various concentrations of DAP using heavy ion beams at the HIMAC accelerator. In order to realize sufficient polymerization of CR-39/DAP copolymer, the optimum fabricating method was also verified by modifying the concentration of the initiator and temperature–time curing cycle for the copolymerization. CR-39 (BARYOTRAK) used for the base material of copolymerization has many advantages: 1) high uniformity of detector response, 2) extremely clear surface condition after etching, and 3) excellent charge and mass resolutions for heavy ions. The surface condition of the copolymer after etching is remarkably improved by using the BARYOTRAK monomer and its track registration sensitivity is controllable by changing the DAP concentration. However the detection threshold of the CR-39 (BARYOTRAK)/DAP copolymer is not yet satisfactory.</description><subject>CR-39/DAP (diallyl phthalate) copolymer</subject><subject>Detection threshold</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Galactic cosmic rays</subject><subject>Geochronology</subject><subject>Isotope geochemistry. Geochronology</subject><subject>Track detector</subject><subject>Ultra heavy nuclei</subject><issn>1350-4487</issn><issn>1879-0925</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkE-L2zAQxU3pQre7_QgFXdqbs5IsW_KpLOlfWOiytGcxkcaNUttKNUogvfSrVyah1x7EDI_fvIdeVb0WfCW46O52qwR-QqCV5Lwv2oq3_Fl1LYzua97L9nnZm5bXShn9onpJtOOcq75rr6s_6y0kcBlToBwcsTiwvEXm4j6Op6nIv9Gz9VPd9Hfv7x9ZLvBP5jGjyzGxobwFjxvCdIQc4rw4HMbCsS3C8cTmgxsxsDCzHzCWpOCKOU1lJDjRbXU1wEj46jJvqu8fP3xbf64fvn76sr5_qJ0SKtfYAgjTaYnS9Vr3ZdsI4MJsFBovu6bxRnZGCW-0kQ714LyQG6X90Axcq-amenv23af464CU7RTI4TjCjPFAVgqptFAL2J5BlyJRwsHuU5ggnazgdqnb7uylbrvUvcil7nL35hIA5GAcEswu0L9jKZVoO9kU7t2Zw_LbY8BkyQWcHfqQSqfWx_CfpL8SQZlV</recordid><startdate>20091001</startdate><enddate>20091001</enddate><creator>Kodaira, S.</creator><creator>Yasuda, N.</creator><creator>Kawashima, H.</creator><creator>Kurano, M.</creator><creator>Hasebe, N.</creator><creator>Doke, T.</creator><creator>Ota, S.</creator><creator>Tsuruta, T.</creator><creator>Hasegawa, H.</creator><creator>Sakai, S.</creator><creator>Nishi, T.</creator><creator>Ogura, K.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope></search><sort><creationdate>20091001</creationdate><title>Characteristics of the copolymerized CR-39/DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays</title><author>Kodaira, S. ; Yasuda, N. ; Kawashima, H. ; Kurano, M. ; Hasebe, N. ; Doke, T. ; Ota, S. ; Tsuruta, T. ; Hasegawa, H. ; Sakai, S. ; Nishi, T. ; Ogura, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c414t-e5aa18672e2c9779672b1a018b4e8d2633d826841d8782ce7fcd12b47df3f0743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>CR-39/DAP (diallyl phthalate) copolymer</topic><topic>Detection threshold</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>Galactic cosmic rays</topic><topic>Geochronology</topic><topic>Isotope geochemistry. 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The track registration sensitivity for heavy ions with various
Z
∗/
β was verified for copolymers mixing CR-39 (BARYOTRAK) with various concentrations of DAP using heavy ion beams at the HIMAC accelerator. In order to realize sufficient polymerization of CR-39/DAP copolymer, the optimum fabricating method was also verified by modifying the concentration of the initiator and temperature–time curing cycle for the copolymerization. CR-39 (BARYOTRAK) used for the base material of copolymerization has many advantages: 1) high uniformity of detector response, 2) extremely clear surface condition after etching, and 3) excellent charge and mass resolutions for heavy ions. The surface condition of the copolymer after etching is remarkably improved by using the BARYOTRAK monomer and its track registration sensitivity is controllable by changing the DAP concentration. However the detection threshold of the CR-39 (BARYOTRAK)/DAP copolymer is not yet satisfactory.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.radmeas.2009.10.050</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
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| ispartof | Radiation measurements, 2009-10, Vol.44 (9), p.775-778 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | CR-39/DAP (diallyl phthalate) copolymer Detection threshold Earth sciences Earth, ocean, space Exact sciences and technology Galactic cosmic rays Geochronology Isotope geochemistry. Geochronology Track detector Ultra heavy nuclei |
| title | Characteristics of the copolymerized CR-39/DAP track detector for the observation of ultra heavy nuclei in galactic cosmic rays |
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