Examining features of radiation-induced damage to PADC observed using FT-IR analysis: Radiation tolerance of methine groups at three-way junctions. (September 2021)

• Record Type: Journal Article
• Authors: Kusumoto, Tamon; Kanasaki, Masato; Ishikawa, Ippei; Barillon, Rémi; Honda, Yoshihide; Tojo, Sachiko; Kodaira, Satoshi; Yamauchi, Tomoya
• Is Part Of: Radiation measurements. Volume 147(2021)
• Publication Date: 2021-09
• Subjects: FT-IR -- PADC -- Methine group; Nuclear emulsions -- Periodicals; Particle tracks (Nuclear physics) -- Periodicals; Thermoluminescence -- Periodicals; Cosmic rays -- Periodicals; Radiation -- Measurement -- Periodicals; Radiometry -- Periodicals; Radiation Monitoring -- Periodicals; Émulsions nucléaires -- Périodiques; Particules (Physique nucléaire) -- Traces -- Périodiques; Thermoluminescence -- Périodiques; Rayonnement cosmique -- Périodiques; Radiométrie -- Périodiques; 539.77
• DOI: 10.1016/j.radmeas.2021.106645
• Languages: English
• ISSNs: 1350-4487

Abstract

Abstract: We report chemical damage to the methine (CH) and methylene (CH2 ) groups in poly(allyl diglycol carbonate) (PADC), which is a polymeric nuclear track detector, under gamma rays and heavy ions (C and Kr) using Fourier Transform Infrared (FT-IR) analysis. By comparing the IR spectrum of PADC from 2700 to 3100 cm −1 to that of diethyleneglycol bis allylcarbonate (ADC), which is a monomer of PADC, we found that the peak at 2920 cm −1 was assigned to the methine group at the three-way junction. The methine group was barely damaged by gamma rays and heavy ions. It is necessary that at least two tracks interact with a single PADC unit to damage the methine group. Highlights: The mechanism of damage to methine groups in PADC is investigated by FT-IR. Methine groups in PADC are barely affected even under irradiation from heavy ions. At least two tracks have to interact with a single PADC unit to damage the methine group.