Scintillation of nanoparticles: Case study of rare earth doped fluorides

Author

Jacobsohn, L.G. ; Kucera, C.J. ; Sprinkle, K.B. ; Roberts, S.A. ; Yukihara, E.G. ; DeVol, T.A. ; Ballato, J.

Author_Institution

Center for Opt. Mater. Sci. & Eng. Technol. (COMSET), Clemson Univ., Clemson, SC, USA

fYear

2010

fDate

Oct. 30 2010-Nov. 6 2010

Firstpage

1600

Lastpage

1602

Abstract

An investigation of the scintillation response of rare earth doped fluoride nanoparticles was carried out taking advantage of core/multi-shell structures. A significant enhancement of the scintillation response was observed and attributed to the increase of the volume of the nanoparticles. Larger nanoparticles contain larger fractions of the irradiation cascade, their dimensions approach the electron-hole mean recombination length increasing the probability of radiative recombination, and separates the luminescence centers in the core from quenching defects on the surface of the nanoparticles.

Keywords

electron-hole recombination; nanoparticles; scintillation; electron-hole mean recombination length; irradiation cascade; luminescence center; nanoparticle scintillation; radiative recombination; rare earth doped fluorides; Charge carrier processes; Luminescence; Materials; Nanoparticles; Radiation effects; Radiative recombination; Sea measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2010 IEEE

Conference_Location

Knoxville, TN

ISSN

1095-7863

Print_ISBN

978-1-4244-9106-3

Type

conf

DOI

10.1109/NSSMIC.2010.5874045

Filename

5874045