Divalent fluoride doped cerium fluoride scintillator

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867937

Anderson, David F ^[1]; Sparrow, Robert W ^[2]

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1. 630 Sylvan Pl., Batavia, IL 60510
2. 28 Woodlawn Dr., Sturbridge, MA 01566

The use of divalent fluoride dopants in scintillator materials comprising cerium fluoride is disclosed. The preferred divalent fluoride dopants are calcium fluoride, strontium fluoride, and barium fluoride. The preferred amount of divalent fluoride dopant is less than about two percent by weight of the total scintillator. Cerium fluoride scintillator crystals grown with the addition of a divalent fluoride have exhibited better transmissions and higher light outputs than crystals grown without the addition of such dopants. These scintillators are useful in radiation detection and monitoring applications, and are particularly well suited for high-rate applications such as positron emission tomography (PET).

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• DOE Contract Number: AC02-76CH03000
• Assignee: Anderson, David F. (630 Sylvan Pl., Batavia, IL 60510);Sparrow, Robert W. (28 Woodlawn Dr., Sturbridge, MA 01566)
• Patent Number(s): US 5039858
• OSTI ID: 867937
• Country of Publication: United States
• Language: English

Related Subjects

divalent
fluoride
doped
cerium
scintillator
dopants
materials
comprising
disclosed
preferred
calcium
strontium
barium
amount
dopant
percent
weight
total
crystals
grown
addition
exhibited
transmissions
light
outputs
scintillators
useful
radiation
detection
monitoring
applications
particularly
suited
high-rate
positron
emission
tomography
pet
crystals grown
doped cerium
scintillator material
emission tomography
positron emission
radiation detection
scintillator materials
cerium fluoride
calcium fluoride
light output
materials comprising
comprising cerium
divalent fluoride
barium fluoride
fluoride dopants
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