CaF2(Eu) Scintillation Crystal

CaF2(Eu) Scintillation Crystals for Beta and Charged-Particle Detection

CaF2(Eu) is europium-doped calcium fluoride (CaF2:Eu), a non-hygroscopic inorganic scintillator considered for beta and other charged-particle measurements. Its material properties can be useful when reduced gamma sensitivity is part of the design brief. Crystal thickness, particle energy and entrance-window construction still determine the response.

ATR Crystal reviews custom crystal dimensions, surface finish, reflector requirements and optical interfaces against drawings. Start with the scintillation crystal range or the scintillation crystal selection guide if the material has not yet been specified.

Advantages of CaF2(Eu) Scintillation Crystal

• Beta and charged-particle applicationsLow-Z material properties can be useful when the particle response and gamma contribution need separate consideration.
• Blue scintillation emissionMatch the photosensor spectral response and optical path to the emission band.
• Non-hygroscopic materialMoisture handling is simpler than for highly hygroscopic scintillators; protect optical surfaces during integration.
• Geometry specified by drawingReview active area, thickness, tolerances and readout face before ordering.
• Research material selectionDefine the radiation source, background contribution and acceptance method for the intended measurement.
• Component-level customizationDiscuss polishing, reflector arrangement and optical interfaces for integration into your design.

Beta Entrance Window, Thickness and Readout

For low-energy beta measurements, specify the particle energy range and the layers in front of the active crystal. An entrance window or reflector can absorb part of the particle energy before it reaches the scintillator. The required thickness must be reviewed against particle penetration and the acceptable gamma contribution.

The emission peak near 435 nm provides a starting point for photosensor selection. Check the specific PMT or other photosensor response, optical coupling, collection geometry and electronics. A material wavelength alone does not establish detection efficiency or energy resolution.

The Saint-Gobain charged-particle detection note hosted by Luxium explains window and thickness considerations. Use it as design context; dimensions and acceptance tests must be defined for your application.

Customization and Quality Control

• Drawing reviewReview crystal dimensions, tolerances, surface finish and optical interfaces before quotation.
• Material and geometry checkThe selected material and product geometry are checked against the intended application.
• Optical and visual inspectionSurface quality, chips, scratches, coating, and appearance can be inspected according to project requirements.
• Performance-related testingDiscuss scintillation and optical measurements when the source, readout and test conditions are defined.
• Packaging supportSpecify reflector, protective packaging and surface handling requirements for shipment and crystal integration.
• Prototype to batch supplySmall samples and repeat production can be supported depending on material availability and specification.

CaF2(Eu) Scintillation Crystal Specifications

Key Specifications and Options

CaF2(Eu), Plastic Scintillators and NaI(Tl) Selection

These materials address different measurement priorities. Select the crystal or plastic grade together with the particle type, energy range, geometry and readout method.

Reduced gamma sensitivity is a design objective, not a guarantee of zero gamma response. Likewise, a crystal described for low-background research does not demonstrate the background rate of the finished instrument.

CaF2(Eu) Physical and Scintillation Properties

The following material values are references for initial specification review. Agree the grade, test conditions and acceptance criteria for the supplied crystals.

The 940 ns decay reference describes the material response; it does not define instrument timing resolution, maximum count rate or electronic shaping time. Relative light output depends on the stated reference and photosensor conditions.

Density, emission and light-output references can be cross-checked in the Luxium inorganic scintillator property chart. Published values are material references rather than inspection results for an ATR Crystal batch.

Applications of CaF2(Eu) Scintillation Crystal

• 01

  Beta particle detection

• 02

  Charged-particle detection

• 03

  Gamma-ray detection

• 04

  Low-background measurement

• 05

  Nuclear physics experiments

• 06

  Custom scintillator components for research

Request a CaF2(Eu) Crystal Quotation

Send your drawing and measurement requirements to review a custom europium-doped calcium fluoride crystal:

• Application: beta or other particle type, energy range and any gamma background present.
• Geometry: active area, thickness, readout face, dimensional tolerances and drawing.
• Optical surfaces: polished faces, reflector arrangement and any entrance-window constraints.
• Readout and acceptance: photosensor model, optical coupling, measurement setup and required tests.
• Quantity: prototype or repeat quantity and your target schedule.

Use the CaF2(Eu) inquiry form or email your requirements to sales@atrscintillator.com.

Frequently Asked Questions