Quenching of benzene fluorescence in pulsed proton irradiation. Temperature dependence

Journal Article · Thu May 03 04:00:00 EDT 1979 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100472a019· OSTI ID:6294096

West, M L; Miller, J H

Dilute solutions of benzene in cyclohexane were irradiated with subnanosecond pulses of protons and changes in the time-resolved emission are studied as a function of temperature. Measurements were also made for ultraviolet excitation and the activation energy for quenching by solvent perturbations is compared to other values reported in the literature. An analysis of the radioluminescence data based on dynamic quenching of excited states by proton induced free radicals suggests that most of the temperature dependence is from thermally activated solvent perturbations present under both proton and ultraviolet excitation. The experimental measurements are compared to model predictions and the temperature dependence of model parameters is discussed.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA
• OSTI ID: 6294096
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 83:9; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
AROMATICS
BARYONS
BENZENE
CHEMICAL RADIATION EFFECTS
CHEMISTRY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FLUORESCENCE
HADRONS
HEAT TREATMENTS
HYDROCARBONS
IRRADIATION
LUMINESCENCE
NUCLEONS
ORGANIC COMPOUNDS
PROTONS
PULSED IRRADIATION
QUENCHING
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
TEMPERATURE EFFECTS
ULTRAVIOLET RADIATION