Evaluation of the X-Ray Absorption by Gold Nanoparticles Solutions. (11th March 2013)

• Record Type: Journal Article
• Authors: Künzel, R.; Okuno, E.; Levenhagen, R. S.; Umisedo, N. K.
• Other Names: Chen D. R. Academic Editor.; Hsu C.-L. Academic Editor.; Sarker D. K. Academic Editor.
• Is Part Of: ISRN nanotechnology. Volume 2013(2013)
• Publication Date: 2013-03-11
• Subjects: Nanotechnology -- Periodicals; Nanotechnology; Nanotechnology; Electronic journals; Periodicals; Electronic journals; 620.5
• DOI: 10.1155/2013/865283
• Languages: English
• ISSNs: 2090-6064

Abstract

Abstract : The increase in the X-ray absorption due to gold nanoparticles was investigated by using aqueous solutions containing gold (Au) nanoparticles. A sample with 15 nm in size nanoparticles and 0.5 mg/mL gold concentration and a distilled water sample were used. Transmitted X-ray beams through the samples were registered with a CdTe detector and with an ionization chamber. Results show an enhancement in the X-ray absorption in the range 20%–6% for beams generated from 20 kV to 120 kV tube voltages, respectively. Results show that the use of gold nanoparticles, even at low concentrations, should result in a significant contrast enhancement for low-energy X-ray beams.