A New Method for the Measurement of Low Concentrations of OH/O<sub>2</sub><sup>-</sup> Radical Species in Water by High-LET Pulse Radiolysis. A Time-Resolved Chemiluminescence Study

Wasselin-Trupin, Virginie; Baldacchino, Gérard; Bouffard, S.; Balanzat, E.; Gardès-Albert, Monique; Abedinzadeh, Z.; Jore, D.; Deycard, S.; Hickel, B.

doi:10.1021/jp000462z

Cited by 24 publications

(13 citation statements)

References 26 publications

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“…We also expect to compare our results to dedicated radiolysis experiments that will be performed at the Laboratoire de Radiolyse (CEA Saclay, Gif-sur-Yvette, France) in order to measure time-dependent •OH yields by using chemiluminescence technics. 22,23) …”

Section: Discussionmentioning

confidence: 99%

Modeling Radiation Chemistry in the Geant4 Toolkit

Karamitros

Mantero

Incerti

et al. 2011

Progress in Nuclear Science and Technology

101

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Simulation of biological effects of ionizing radiation at the DNA scale requires not only the modeling of direct damages induced on DNA by the incident radiation and by secondary particles but also the modeling of indirect effects of radiolytic products resulting from liquid water radiolysis. They can provoke single, double strand breaks and base damage by reacting with DNA. The Geant4 Monte Carlo toolkit is currently being extended for the simulation of biological damages of ionizing radiation at the DNA scale in the framework of the "Geant4-DNA" project. Physics models for the modeling of direct effects are already available in Geant4. In the present paper, an approach for the modeling of radiation chemistry in pure liquid water within Geant4 is presented. In particular, this modeling includes Brownian motion and chemical reactions between molecules following water radiolysis. First results on time-dependent radiochemical yields from 1 picosecond up to 1 microsecond after irradiation are compared to published data and discussed.

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Section: Discussionmentioning

confidence: 99%

Modeling Radiation Chemistry in the Geant4 Toolkit

Karamitros

Mantero

Incerti

et al. 2011

Progress in Nuclear Science and Technology

101

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“…[6,7] The luminol CL can also be induced by irradiation of an electron pulse, [8,9] γ-ray, [10][11][12][13][14] Ar ion beam [15] or sonic wave [16,17] because reactive oxygen species such as hydroxyl radical (•OH), superoxide ion (O 2…”

Section: Indroductionmentioning

confidence: 99%

Chemiluminescence from luminol solution after illumination of a 355 nm pulse laser

Lü¹,

2009

Luminescence

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Chemiluminescence (CL) on the time scale of microseconds to milliseconds from luminol solution after illumination of a 355 nm pulse laser is reported. It was found that the CL is the emission from 3-aminophthalate ion (AP*). In CL decay after the pulse laser illumination, a peak was observed from about 200 to 30 micros depending on the laser power and the luminol concentration. It seemed that there was a fast and slow decay process; their kinetics were greatly dependent on the laser power and the luminol concentration. Dissolved oxygen was involved in the CL and played the same role on the whole time scale of microseconds to milliseconds. Involvement of reactive oxygen species such as H(2)O(2), (1)O(2), O(2) (*-) and OH in the CL was examined by adding their scavengers. Experimental results suggested that the possibility of involvement of H(2)O(2) and (1)O(2) in the CL was low. The CL in time periods less than 50 micros might be related to *OH. The (*)O(2) (*-)-induced CL increased with time after 50 micros and became dominant on the time scale of milliseconds. The CL was considered to be caused by both the photoionization and type I reaction mechanisms.

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“…Le montage expérimental décrit sur la figure 1 a été utilisé lors d'une expérience de radiolyse pulsée à haut TEL au Grand Accélérateur National d'Ions Lourds à Caen (V. Wasselin-Trupin et al 2000). Des solutions de luminol à pH 12 aérées et désaérées ont été irradiées par un faisceau d'ions 40 Ar 18+ de 95 MeV par nucléon dont l'impulsion variait de 10 µs à 2 ms.…”

Section: Application à Une éTude à Haut Telunclassified

Détection des radicaux OH et O₂ issus de la radiolyse de l'eau par chimiluminescence résolue en temps

Wasselin-Trupin¹,

Baldacchino²,

Hickel³

2001

Can. J. Physiol. Pharmacol.

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A new method for the detection of low concentrations of hydroxyl and superoxide radicals, formed by water radiolysis, is described in this article. The method used is the time resolved chemiluminescence. It has been performed with an electron beam delivered by a Febetron 707 accelerator. This method allows to measure hydroxyl and superoxide radical concentrations in a large range of concentrations, between 10(-5) and 10(-8) M.

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A New Method for the Measurement of Low Concentrations of OH/O₂^- Radical Species in Water by High-LET Pulse Radiolysis. A Time-Resolved Chemiluminescence Study

Cited by 24 publications

References 26 publications

Modeling Radiation Chemistry in the Geant4 Toolkit

Modeling Radiation Chemistry in the Geant4 Toolkit

Chemiluminescence from luminol solution after illumination of a 355 nm pulse laser

Détection des radicaux OH et O₂ issus de la radiolyse de l'eau par chimiluminescence résolue en temps

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A New Method for the Measurement of Low Concentrations of OH/O2- Radical Species in Water by High-LET Pulse Radiolysis. A Time-Resolved Chemiluminescence Study

Cited by 24 publications

References 26 publications

Modeling Radiation Chemistry in the Geant4 Toolkit

Modeling Radiation Chemistry in the Geant4 Toolkit

Chemiluminescence from luminol solution after illumination of a 355 nm pulse laser

Détection des radicaux OH et O2 issus de la radiolyse de l'eau par chimiluminescence résolue en temps

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A New Method for the Measurement of Low Concentrations of OH/O₂^- Radical Species in Water by High-LET Pulse Radiolysis. A Time-Resolved Chemiluminescence Study

Détection des radicaux OH et O₂ issus de la radiolyse de l'eau par chimiluminescence résolue en temps