Cerium-doped single crystal and transparent ceramic lutetium aluminum garnet scintillators

Cherepy, Nerine J.; Kuntz, Joshua D.; Tillotson, Thomas M.; Speaks, Derrick T.; Payne, Stephen A.; Chai, B. H. T.; Porter-Chapman, Yetta D.; Derenzo, Stephen E.

doi:10.1016/j.nima.2007.04.009

Cited by 70 publications

(25 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They showed small differences in their emission spectra, where the emission peak of the ceramic shifted to a longer wavelength. Such a phenomenon is also observed in ceramic Ce:LuAG [15]. Because the intensity of such measurements has no scientific value, we normalized them to 1 at the emission peaks at shorter wavelengths.…”

Section: B Optical Propertiesmentioning

confidence: 96%

See 1 more Smart Citation

Basic Properties of Ceramic Pr:LuAG Scintillators

Yanagida

Yoshikawa

Ikesue³

et al. 2009

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

This paper describes the first report of a Pr 3+ -doped transparent ceramic Lu3Al5O12(Pr:LuAG) scintillator. Transparent ceramic Pr 0.25 mol% doped LuAG was developed by a sintering method, and achieved 70% transparency at wavelengths longer than 310 nm. The emission wavelength of the ceramic Pr:LuAG shifts to longer wavelengths than that of its single crystalline counterpart. The light yield was measured by irradiation of 137 Cs, and was almost half as that of the single crystalline counterpart. The energy resolution at 662 keV was 12% which was about three times as worse as that of the single crystalline one. The decay time showed a big difference with the single crystalline one because its slower component disappeared due to defects.

show abstract

Section: B Optical Propertiesmentioning

confidence: 96%

“…Thus, the present experiment provides a very similar situation to the scintillation processes. In addition, some literature (e.g., [15]) has reported that the emission wavelength showed small differences with differing excitation sources (e.g., UV, X-ray, gamma ray, and charged particles).…”

Section: B Optical Measurementsmentioning

confidence: 99%

Basic Properties of Ceramic Pr:LuAG Scintillators

Yanagida

Yoshikawa

Ikesue³

et al. 2009

IEEE Trans. Nucl. Sci.

View full text Add to dashboard Cite

show abstract

“…Lutetium Aluminum Garnet (LuAG:Ce), Gadolinium Aluminum Garnet (GAG:Ce) and Terbium Aluminum Garnet (TAG:Ce) feature high density, high effective atomic number (e.g. ρ=6.7 g/cm 3 and Z eff =58.9 for LuAG), and good light yields [14][15][16]. Garnet single crystals are typically grown by the Czochralski method, and production of large-sized optics is therefore expensive.…”

Section: Introductionmentioning

confidence: 99%

Scintillators With Potential to Supersede Lanthanum Bromide

Cherepy

Payne

Asztalos

et al. 2009

IEEE Trans. Nucl. Sci.

Self Cite

241

118

View full text Add to dashboard Cite

is the most promising. SrI 2 (Eu) emits into the Eu 2+ band, centered at 435 nm, with a decay time of 1.2 µs and a light yield of up to 115,000 photons/MeV. It offers energy resolution better than 3% FWHM at 662 keV, and exhibits excellent light yield proportionality. Transparent ceramics fabrication allows production of Gadolinium-and Terbium-based garnets which are not growable by melt techniques due to phase instabilities. While scintillation light yields of Cerium-doped ceramic garnets are high, light yield non-proportionality and slow decay components appear to limit their prospects for high energy resolution.We are developing an understanding of the mechanisms underlying energy dependent scintillation light yield non-proportionality and how it affects energy resolution. We have also identified aspects of optical design that can be optimized to enhance energy resolution.

show abstract

“…Spectra shifted for clarity previously demonstrated for scintillation [22,23]. Therefore, the light yield and proportionality of the FIrpic-doped sample is enhanced compared to the DPA-doped material, in which only singlets may be emitted.…”

Section: Radium-226mentioning

confidence: 87%

Performance of europium-doped strontium iodide, transparent ceramics and bismuth-loaded polymer scintillators

Cherepy¹,

Payne

Sturm

et al. 2011

SPIE Proceedings

View full text Add to dashboard Cite

Recently discovered scintillators for gamma ray spectroscopy, single crystal SrI 2 (Eu), GYGAG(Ce) transparent ceramic and Bismuth-loaded plastics, offer resolution and fabrication advantages compared to commercial scintillators, such as NaI(Tl) and standard PVT plastic. Energy resolution at 662 keV of 2.7% is obtained with SrI 2 (Eu), while 4.5% is obtained with GYGAG(Ce). A new transparent ceramic scintillator for radiographic imaging systems, GLO(Eu) offers high light yield of 70,000 Photons/MeV, high stopping, and low radiation damage. Implementation of single crystal SrI 2 (Eu), Gd-based transparent ceramics, and Biloaded plastic scintillators can advance the state-of-the art in ionizing radiation detection systems.

show abstract

Cerium-doped single crystal and transparent ceramic lutetium aluminum garnet scintillators

Cited by 70 publications

References 12 publications

Basic Properties of Ceramic Pr:LuAG Scintillators

Basic Properties of Ceramic Pr:LuAG Scintillators

Scintillators With Potential to Supersede Lanthanum Bromide

Performance of europium-doped strontium iodide, transparent ceramics and bismuth-loaded polymer scintillators

Contact Info

Product

Resources

About