Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC
Modified structure along latent tracks and track formation process have been investigated in poly (allyl diglycol carbonate), PADC, which is well recognized as a sensitive etched track detector. This knowledge is essential to develop novel detectors with improved track registration property. The tra...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/16/2665 |
| _version_ | 1797522326937403392 |
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| author | Tomoya Yamauchi Masato Kanasaki Rémi Barillon |
| author_facet | Tomoya Yamauchi Masato Kanasaki Rémi Barillon |
| author_sort | Tomoya Yamauchi |
| collection | DOAJ |
| description | Modified structure along latent tracks and track formation process have been investigated in poly (allyl diglycol carbonate), PADC, which is well recognized as a sensitive etched track detector. This knowledge is essential to develop novel detectors with improved track registration property. The track structures of protons and heavy ions (He, C, Ne, Ar, Fe, Kr and Xe) have been examined by means of FT-IR spectrometry, covering the stopping power region between 1.2 to 12,000 eV/nm. Through a set of experiments on low-<i>LET</i> radiations—such as gamma ray-, multi-step damage process by electron hits was confirmed in the radiation-sensitive parts of the PADC repeat-unit. From this result, we unveiled for the first-time the layered structure in tracks, in relation with the number of secondary electrons. We also proved that the etch pit was formed when at least two repeat-units were destroyed along the track radial direction. To evaluate the number of secondary electrons around the tracks, a series of numerical simulations were performed with Geant4-DNA. Therefore, we are proposing new physical criterions to describe the detection thresholds. Furthermore, we propose a present issue of the definition of detection threshold for semi-relativistic C ions. Additionally, as a possible chemical criterion, formation density of hydroxyl group is suggested to express the response of PADC. |
| first_indexed | 2024-03-10T08:27:51Z |
| format | Article |
| id | doaj.art-f3f4a04dbc72476ba915e647e97de634 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T08:27:51Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-f3f4a04dbc72476ba915e647e97de6342023-11-22T09:22:28ZengMDPI AGPolymers2073-43602021-08-011316266510.3390/polym13162665Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADCTomoya Yamauchi0Masato Kanasaki1Rémi Barillon2Graduate School of Maritime Sciences, Kobe University, Hyogo 657-8501, JapanGraduate School of Maritime Sciences, Kobe University, Hyogo 657-8501, JapanInstitut Pluridisiplinaire Hubert Curien, UMR 7178, CNRS, The University of Strasbourg, 67081 Strasbourg, FranceModified structure along latent tracks and track formation process have been investigated in poly (allyl diglycol carbonate), PADC, which is well recognized as a sensitive etched track detector. This knowledge is essential to develop novel detectors with improved track registration property. The track structures of protons and heavy ions (He, C, Ne, Ar, Fe, Kr and Xe) have been examined by means of FT-IR spectrometry, covering the stopping power region between 1.2 to 12,000 eV/nm. Through a set of experiments on low-<i>LET</i> radiations—such as gamma ray-, multi-step damage process by electron hits was confirmed in the radiation-sensitive parts of the PADC repeat-unit. From this result, we unveiled for the first-time the layered structure in tracks, in relation with the number of secondary electrons. We also proved that the etch pit was formed when at least two repeat-units were destroyed along the track radial direction. To evaluate the number of secondary electrons around the tracks, a series of numerical simulations were performed with Geant4-DNA. Therefore, we are proposing new physical criterions to describe the detection thresholds. Furthermore, we propose a present issue of the definition of detection threshold for semi-relativistic C ions. Additionally, as a possible chemical criterion, formation density of hydroxyl group is suggested to express the response of PADC.https://www.mdpi.com/2073-4360/13/16/2665PADCpoly (allyl diglycol carbonate)latent tracktrack core radius<i>G</i>–valuelayered structure |
| spellingShingle | Tomoya Yamauchi Masato Kanasaki Rémi Barillon Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC Polymers PADC poly (allyl diglycol carbonate) latent track track core radius <i>G</i>–value layered structure |
| title | Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC |
| title_full | Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC |
| title_fullStr | Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC |
| title_full_unstemmed | Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC |
| title_short | Methodological and Conceptual Progresses in Studies on the Latent Tracks in PADC |
| title_sort | methodological and conceptual progresses in studies on the latent tracks in padc |
| topic | PADC poly (allyl diglycol carbonate) latent track track core radius <i>G</i>–value layered structure |
| url | https://www.mdpi.com/2073-4360/13/16/2665 |
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