Gamma-radiation damage effects on plastic scintillators

Oldham, G.; Ware, A.R.

doi:10.1080/00337577508237425

Cited by 11 publications

(6 citation statements)

References 7 publications

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“…The damage also appears to be correlated with exposure dose following a logarithmic trend, consistent with Oldham and Ware [11] and Buss et al [12]. In other words, most of the damage occurs early in the exposure, for example PET was damaged 65% in the first 1 MRad of exposure, but increased only 23% further after another 9 MRad.…”

Section: Measurement Resultssupporting

confidence: 79%

“…These plots show that while PEN handles a high radiation environment better than PET, PET has a remarkable ability to recover. PET, however, takes a considerable amount of time to recover.The damage also appears to be correlated with exposure dose following a logarithmic trend, consistent with Oldham and Ware[11] and Buss et al[12]. In other words, most of the damage occurs early in the exposure, for example PET was damaged 65% in the first 1 MRad of exposure, but increased only 23% further after another 9 MRad.…”

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confidence: 81%

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Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad

et al. 2016

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Polyethylene naphthalate (PEN) and polyethylene teraphthalate (PET) are cheap and common polyester plastics used throughout the world in the manufacturing of bottled drinks, containers for foodstuffs, and fibers used in clothing. These plastics are also known organic scintillators with very good scintillation properties. As particle physics experiments increase in energy and particle flux density, so does radiation exposure to detector materials. It is therefore important that scintillators be tested for radiation tolerance at these generally unheard of doses. We tested samples of PEN and PET using laser stimulated emission on separate tiles exposed to 1 MRad and 10 MRad gamma rays with a 137 Cs source. PEN exposed to 1 MRad and 10 MRad emit 71.4% and 46.7% of the light of an undamaged tile, respectively, and maximally recover to 85.9% and 79.5% after 5 and 9 days, respectively. PET exposed to 1 MRad and 10 MRad emit 35.0% and 12.2% light, respectively, and maximally recover to 93.5% and 80.0% after 22 and 60 days, respectively.

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Section: Measurement Resultssupporting

confidence: 79%

supporting

confidence: 81%

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad

et al. 2016

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“…For doses below 1 megarad, very little damage is observed. However for doses above 1 megarad, the damage follows an exponential law as observed in a previous experiment [3]. The recovery data in figures l(c) & (d) display a similar form, but the amplitudes are significantly different.…”

Section: Methodssupporting

confidence: 78%

A pilot study of the radiation resistance of selected plastic scintillators

Zorn

Bowen

Majewski

et al. 1989

IEEE Trans. Nucl. Sci.

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A study of selected plastic scintillators has been carried out with the purpose of finding at least one technique of significantly enhancing the radiation resistance of the scintillator. We present here a status report of our current results. In summary, three basic methods can be used: (1) immerse the scintillator in argon gas, (2) an elevated ambient temperature (5OOC) can increase the recovery rate of the scintillator, and (3) the use of a secondary fluor which emits above 500 nm can greatly enhance the radiation resistance of a scintillator.

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“…We carried out the same UV irradiation in vacuum and air for PS nanospheres and found a decrease in the 350 nm PL peak intensity with the generation of several PL peaks in the visible range. That means the decrease of the 350 nm PL peak intensity should be related to the creation of new luminophores, which are formed by photochemical reactions 19 . Correlation between the decrease of the 350 nm PL peak and generation of new luminophores is described by the following equation: where A and B are constants, y is the yield of luminescence, and t is the irradiation time.…”

Section: Resultsmentioning

confidence: 99%

White light emission from polystyrene under pulsed ultra violet laser irradiation

Kim

Kyhm

Kim

et al. 2013

Sci Rep

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This paper reports for the first time the luminescent property of polystyrene (PS), produced by pulsed ultra violet laser irradiation. We have discovered that, in air, ultra-violet (UV) irradiated PS nanospheres emit bright white light with the dominant peak at 510 nm, while in vacuum they emit in the near-blue region. From the comparison of PS nanospheres irradiated in vacuum and air, we suggest that the white luminescence is due to the formation of carbonyl groups on the surface of PS by photochemical oxidation. Our results potentially offer a new route and strategy for white light sources.

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Gamma-radiation damage effects on plastic scintillators

Cited by 11 publications

References 7 publications

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad

A pilot study of the radiation resistance of selected plastic scintillators

White light emission from polystyrene under pulsed ultra violet laser irradiation

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Gamma-radiation damage effects on plastic scintillators

Cited by 11 publications

References 7 publications

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a137Cs gamma ray source up to 1.4 Mrad and 14 Mrad

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a137Cs gamma ray source up to 1.4 Mrad and 14 Mrad

A pilot study of the radiation resistance of selected plastic scintillators

White light emission from polystyrene under pulsed ultra violet laser irradiation

Contact Info

Product

Resources

About

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad

Radiation damage and recovery properties of common plastics PEN (Polyethylene Naphthalate) and PET (Polyethylene Terephthalate) using a¹³⁷Cs gamma ray source up to 1.4 Mrad and 14 Mrad