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Eu₂:Caf2 Crystal

POC-OC-122498-Eu₂:Caf2 Crystal

  • High density and excellent scintillation properties.
  • Short decay constant for high-speed radiation detection.
  • Superior emission peak at 435 nm, ideal for radiation monitoring.
  • High mechanical stability with a Mohs hardness of 4.
  • OEM customization options for specialized applications.

Customizable Components Available for This Material to Meet Your Specific Needs!

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Eu₂:Caf2 Crystal Material General Description

Europium-doped Calcium Fluoride (Eu₂:CaF₂) is a high-performance scintillation crystal widely used in radiation detection and medical diagnostic devices. The crystal’s cubic structure, combined with its high density (3.18 g/cm³) and short decay constant (940 ns), enables rapid and efficient detection of radiation, making it ideal for nuclear physics experiments, reactor monitoring, and advanced imaging systems. Its emission peak at 435 nm ensures compatibility with various optical systems.

Eu₂:CaF₂ crystals exhibit excellent optical clarity and uniformity, enhancing their performance in precision applications. Their durability, combined with low refractive index (1.47), ensures longevity and stable operation in demanding environments.

General Application and Examples

Eu₂:CaF₂ crystals find applications in:

  • Nuclear Physics: Ideal for high-energy particle detection due to their rapid decay and high-density properties.
  • Radiation Monitoring: Used in nuclear reactors for detecting radiation levels with precision.
  • Medical Imaging: Advanced scintillation properties enable use in diagnostic devices for detecting radioactive isotopes.
  • Spectroscopy: Compatible with spectroscopic systems for precision measurement.
  • Scientific Research: Utilized in low-energy experiments and high-resolution detection systems.

For instance, in radiation monitoring, Eu₂:Caf2 Crystal  enables real-time detection due to its short decay time. Its emission at 435 nm is tailored for optical systems used in radiation detectors.

Chemical and Structural Properties

Attribute

Value

Density

3.18 g/cm³

Melting Point

1360 °C

Refractive Index

1.47

Emission Peak

435 nm

Decay Constant

940 ns

Mohs Hardness

4

Crystal Structure

Cubic System

Cleavage Plane

(111)

Optical, Laser and Nonlinear Optical Properties

Optical Property

Value

Light Output

8.6%

Radiation Length

17 mm

Transparency Range

UV to visible light

Optical Density

Tunable

Standard Fabrication Specifications

Specification

Value

Surface Flatness

< λ/8 @ 632.8 nm

Parallelism

< 20 arcseconds

Perpendicularity

90° ± 15 arcminutes

Surface Quality

10-5 Scratch-Dig

Maximum Dimensions

Customizable (varies)

Spectrum Transmission Curve:

The emission spectrum demonstrates a sharp peak at 435 nm, aligning with radiation detection devices. Data for the exact curve can be provided upon request.

Coating Specification:

 

Custom anti-reflective (AR) coatings are available upon request, designed to enhance transmission at 435 nm and improve detection efficiency.

  • Adhesion Test Compliant with MIL-C-675C military standards, an adhesion test involved applying a tape that meets LT-90 specifications onto the lens film layer. The tape was affixed fully and then removed vertically. This procedure was performed three times, resulting in no blistering or peeling.
  • Temperature Test In line with MIL-C-675C specifications, test pieces were subjected to temperatures of -62±1℃ and 71±1℃. After maintaining them at room temperature (16℃~32℃) for two hours, the adhesion test was repeated, confirming no film detachment.
  • Abrasion Resistance Test Conforming to MIL-C-675C and CCC-C-440 standards, the abrasion resistance test involved a gauze tester applying a minimum force of 1.0 lbs (0.45 kg) to the film. This was repeated 25 times with gauze widths of 1/4 inch (6.4mm) and 3/8 inch (9.5mm), ensuring no damage occurred to the film surface.
  • Humidity Test Under MIL-C-675C criteria, the test piece was placed in a controlled temperature and humidity chamber set to 49 ±2℃ and 95%~100% humidity for 24 hours. The film remained intact, with no peeling, scratches, or other defects.
  • Solvent and Cleaning Testing Following MIL-C-675C specifications, test pieces were exposed to room temperature conditions (16℃~32℃) and tested with acetone and alcohol for at least 10 minutes each. After air drying and subsequent cleaning with a cotton cloth soaked in alcohol, the film surface showed no signs of peeling or scratches.
  • Salt Spray Test After 100 hours in a 35°C environment with a 5% saltwater concentration, the film showed no signs of damage.

POC Strength and Capabilities

 

Photonics On Crystals (POC) excels in material processing, ensuring high-quality fabrication of Eu₂:CaF₂ crystals. POC offers:

  • Precision cutting and polishing to meet exact specifications.
  • Expertise in advanced coating technologies for radiation detection.
  • Comprehensive customization to suit diverse applications.

Standard Products

If you require additional information or customized options, feel free to contact Photonics On Crystals (POC).

Dimension (mm)

Coating

Price (USD)

10 x 10 x 1

AR@435 nm

250

15 x 15 x 2

AR@435 nm

350

20 x 20 x 2

AR@435 nm

500

Custom

Upon request

Quote available

POC-OC-122498-Eu₂ Caf2 Crystal

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