Poly [1,1'-bis(ethynyl)-4,4'-biphenyl(bis-tributylphosphine)Pt(II)] solutions used as low dose ionizing radiation dosimeter

Journal Article · Mon Jun 17 00:00:00 EDT 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4812186· OSTI ID:22163034

Bronze-Uhle, E. S.; Graeff, C. F. O. ^[1]; Batagin-Neto, A.; Fernandes, D. M. ^[2]; Fratoddi, I.; Russo, M. V. ^[3]

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1. Department of Physics, FC-UNESP, Av. Eng. Luiz Edmundo Carrijo Coube 14-01, 17033-360 Bauru (Brazil)
2. UNESP-Univ Estadual Paulista, POSMAT-Programa de Pos-Graduacao em Ciencia e Tecnologia de Materiais, Bauru, Sao Paulo (Brazil)
3. Department of Chemistry, University of Rome 'Sapienza,' P.le A. Moro 5, 00185 Rome (Italy)

In this work, the effect of gamma radiation on the optical properties of polymetallayne poly[1,1'-bis(ethynyl)-4,4'-biphenyl(bis-tributylphosphine)Pt(II)] (Pt-DEBP) in chloroform solution is studied. The samples were irradiated at room temperature with doses from 0.01 Gy to 1 Gy using a {sup 60}Co gamma ray source. A new band at 420 nm is observed in the emission spectra, in superposition to the emission maximum at 398 nm, linearly dependent on dose. We propose to use the ratio of the emission amplitude bands as the dosimetric parameter. This method proved to be robust, accurate, and can be used as a dosimeter in medical applications.

• OSTI ID: 22163034
• Journal Information: Applied Physics Letters, Vol. 102, Issue 24; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMPLITUDES
BIPHENYL
CHLOROFORM
COBALT 60
DOSEMETERS
EMISSION SPECTRA
GAMMA RADIATION
GAMMA SOURCES
IRRADIATION
OPTICAL PROPERTIES
ORGANIC SEMICONDUCTORS
PHOTOLUMINESCENCE
POLYMERS
RADIATION DOSES
SOLUTIONS
TEMPERATURE RANGE 0273-0400 K
ULTRAVIOLET SPECTRA