Europium oxide neutron absorber cores
Optical and Photoluminescent Properties
Efficient Red Light Emission: Trivalent europium ions (Eu³⁺) serve as an outstanding red luminescent center. Under ultraviolet or electron beam excitation, they can emit red fluorescence with exceptionally high color purity and brightness, a characteristic that is irreplaceable.
Tunable Emission Characteristics: By modifying the matrix material or introducing divalent europium ions (Eu²⁺), it is possible to control the luminescent behavior, achieving fluorescence that ranges from blue to green, offering high flexibility.
High Stability: The fluorescence performance remains stable in high-temperature and radiation environments, ensuring a long lifespan.
Special neutron absorption characteristics
High thermal neutron absorption cross-section: Europium oxide has a high thermal neutron absorption cross-section (~5,800 barns), making it suitable for neutron shielding and control.
Activation characteristics: After absorbing neutrons, it generates isotopes with specific radioactivity. This characteristic can be used for radiotracing, but it also means that caution must be exercised in handling the radioactive issues that arise from its activation in nuclear applications.
High temperature and chemical stability
High Melting Point: The melting point exceeds 2350°C, which can meet the basic requirements of high-temperature application environments.
Chemical Inertness: It exhibits excellent corrosion resistance in various chemical environments and molten metals.
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Optoelectronics and Display Technology
Core materials of phosphor: As an activator, it is an indispensable red component in the manufacture of CRT televisions, trichromatic energy-saving lamps, X-ray intensifying screens, and high-end LED phosphors.
Anti-counterfeiting labels and markings: Incorporated into inks or materials, used for ultraviolet anti-counterfeiting marks on banknotes, documents, and high-value goods.
Nuclear Technology and Radiation Protection
Neutron shielding materials: As a supplement or alternative to gadolinium oxide, these materials are used in the fabrication of neutron absorption components in research reactors, spent fuel storage, and transportation containers.
Nuclear control auxiliary materials: Used in specific control scenarios where the requirements for neutron absorption efficiency are not extreme.
Scientific Research and Industry
Fluorescent probes: In the fields of biology, chemistry, and materials science research, they are used as fluorescent markers to detect physicochemical changes in microscopic environments.
Special optical glass additives: Used in the manufacture of specialty optical materials such as laser glass and fluorescent glass.
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