Inhomogeneous kinetics in the quenching of prompt radioluminescence: Analysis of alpha particle and proton induced fluorescence decay curves

Journal Article · Thu Jan 01 04:00:00 EST 1981 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.440784· OSTI ID:6748019

Miller, J H; West, M L

Fluorescence decay curves for dilute solutions of benzene in cyclohexane excited by pulsed proton and alpha particle irradiation are analyzed in terms of a spur diffusion model. This model predicts a reduction in the quenching of fluorescence induced by alpha particles relative to that observed with proton irradiation of the same stopping power due to the more diffuse radial distribution of energy deposited by the higher velocity ion. However, to explain the observed reduction in quenching with alpha particle irradiation on the basis of this model requires a mean spur energy significantly smaller than that used to explain related phenomena in the radiation chemistry of aqueous media.

• Research Organization: Battelle Laboratories, Pacific Northwest Laboratory, Richland, Washington 99352
• OSTI ID: 6748019
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 74:1; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ALKANES
ALPHA PARTICLES
AROMATICS
BENZENE
CATIONS
CHARGED PARTICLES
CHEMISTRY
CYCLOALKANES
CYCLOHEXANE
DISPERSIONS
FLUORESCENCE
HYDROCARBONS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IONS
LUMINESCENCE
MIXTURES
ORGANIC COMPOUNDS
RADIATION CHEMISTRY
RADIOLUMINESCENCE
SOLUTIONS
STOPPING POWER