Investigation of proton response of CR-39

Al-Jarallah, M.I.; Abu-Jarad, F.; Hallak, A. B.; Coban, A.; Islam, Meez

doi:10.1016/0969-8078(93)90044-5

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…For proton irradiated polycarbonates, registration sensitivity increases with proton energy, reaching amaximum at about 0.5 -0.8 MeV (Darraud-Taupiac et al 1997). For polycarbonates irradiated to 200 keV proton beam, the refractive index was found to be an increasing function of dose (Al-Jarallah et al, 1993). Proton irradiation can also modify the track registration properties of polycarbonates (Dwivedi et al, 1999).…”

Section: Introductionmentioning

confidence: 92%

Modification Induced in Light Diffusing Polycarbonate due to Proton Irradiation

Nouh

Alghamdi

Alsobhi

et al. 2015

International Polymer Processing

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Light diffusing polycarbonate samples were exposed to protons fluences at levels between 10 11 and 10 16 p/cm 2 .T he variation of the refractive index and color intensity with the proton fluence has been studied. The results show that the polycarbonate samples acquire color changes under proton irradiation. Furthermore, thermogravimetric analysis has been performed. It was found that both the onset temperature and activation energy of thermal decomposition are affected by the proton fluencies owing to the degradation and crosslinking processes. Moreover, structural property studies using X-ray diffraction, intrinsic viscosity and Fourier transform infrared spectroscopy were performed.

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Section: Introductionmentioning

confidence: 92%

Modification Induced in Light Diffusing Polycarbonate due to Proton Irradiation

Nouh

Alghamdi

Alsobhi

et al. 2015

International Polymer Processing

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“…These reactions depend on the proton dose (5). For polycarbonates irradiated with a 200 keV proton beam, the refractive index was found to be an increasing function of the dose (6). Proton irradiation can also modify the track registration properties of polycarbonates (7).…”

Section: Introductionmentioning

confidence: 98%

Thermal, electrical and optical properties of proton-irradiated Makrofol DE 7-2 nuclear track detector

Nouh

Abdelsalam

Radwan

et al. 2011

Radiation Effects and Defects in Solids

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Samples from sheets of the polymeric material Makrofol DE 7-2 have been exposed to 1 MeV protons of fluences in the range 2.5 × 10 13 -5 × 10 15 p/cm 2 . The resultant effect of proton irradiation on the thermal properties of Makrofol has been investigated using thermogravimetric analysis and differential thermal analysis (DTA). The onset temperature of decomposition T o and the activation energy of thermal decomposition E a were calculated, and the results indicated that the Makrofol detector decomposes in one weight loss stage. Also, the proton irradiation in the fluence range 7.5 × 10 13 -5 × 10 15 p/cm 2 led to a more compact structure of Makrofol polymer, which resulted in an improvement in its thermal stability with an increase in the activation energy of thermal decomposition. The variation of transition temperatures with proton fluence has been determined using DTA. The Makrofol thermograms were characterized by the appearance of an endothermic peak due to the melting of the crystalline phase. The melting temperature of the polymer, T m , was investigated to probe the crystalline domains of the polymer. At a fluence range of 7.5 × 10 13 -5 × 10 15 p/cm 2 , the defect generated destroys the crystalline structure, thus reducing the melting temperature. In addition, the V -I characteristics of the polymer samples were investigated. The electrical conductivity was decreased with the increasing proton fluence up to 5 × 10 15 p/cm 2 . Further, the refractive index, transmission of the samples and any color changes were studied. The color intensity E was greatly increased with the increasing proton fluence and was accompanied by a significant increase in the red and yellow color components.

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