Engineering Overview
CaF2(Eu) Scintillation Crystal
CaF2(Eu), or europium-doped calcium fluoride, is a non-hygroscopic scintillation crystal used for beta-particle and charged-particle detection, gamma measurement, low-background experiments, and detector research. Its relatively low density and effective atomic number can be useful where beta response and reduced gamma sensitivity are important. Typical reference values include a density of about 3.18 g/cm3, an emission peak near 435 nm, and a decay time around 950 ns. Final performance depends on crystal quality, europium concentration, dimensions, optical coupling, photosensor, and test conditions. ATR Crystal supplies custom CaF2(Eu) crystals with dimensions, surface finish, wrapping, and readout requirements reviewed according to the detector design.
What Is CaF2(Eu) Scintillation Crystal?
CaF2(Eu) Scintillation Crystal CaF2(Eu) is a europium-doped calcium fluoride scintillation crystal used for charged-particle, beta, gamma, and low-background detector applications.
ATR Crystal supplies CaF2(Eu) Scintillation Crystal for research, industrial, medical, security, and OEM projects. Dimensions, surface finish, packaging, readout matching, and inspection requirements can be reviewed according to your drawing or application.
Applications of CaF2(Eu) Scintillation Crystal
Beta particle detection
Charged-particle detection
Gamma-ray detection
Low-background measurement
Nuclear physics experiments
Custom scintillation detector assemblies
Advantages of CaF2(Eu) Scintillation Crystal
- Low atomic number optionCaF2(Eu) can be useful when lower effective atomic number is preferred in detector design.
- Emission near blue rangeThe scintillation emission can be matched to common PMT readout systems.
- Non-hygroscopic handlingThe crystal is easier to handle than strongly hygroscopic scintillators.
- Custom geometryPolished crystals and detector-ready components can be supplied by drawing.
- Research detector useThe material is used in nuclear physics and radiation detection research.
- Stable fluoride crystalCaF2-based crystals offer useful optical and scintillation properties for specialized detectors.
CaF2(Eu) Scintillation Crystal Specifications
Key Specifications and Options
| Parameter | Typical Value / Option |
|---|---|
| Chemical formula | CaF2:Eu |
| Crystal family | Fluoride scintillator |
| Typical application | Beta, charged-particle, and gamma detection |
| Readout compatibility | PMT or custom photosensor readout |
| Format | Custom polished crystals and detector components |
Comparison with Related Scintillation Crystal Materials
This comparison helps position the material against common scintillator choices. Exact performance depends on crystal quality, size, wrapping, photosensor, and test conditions.
| Material | Density / Stopping | Timing / Decay | Main Advantage | Handling |
|---|---|---|---|---|
| LYSO(Ce) | High, about 7.1 g/cm3 | Fast, about 36 ns | PET, TOF-PET, compact gamma detection | Non-hygroscopic; contains Lu-176 intrinsic background |
| BGO | High, about 7.13 g/cm3 | Slower, about 300 ns | Strong stopping power and no intrinsic background | Non-hygroscopic |
| NaI(Tl) | Moderate, about 3.67 g/cm3 | About 250 ns | High light yield and strong spectroscopy value | Highly hygroscopic; needs hermetic sealing |
| CsI(Tl) | Moderate, about 4.51 g/cm3 | About 1000 ns | High light output and photodiode-friendly green emission | Slightly hygroscopic |
| GAGG(Ce) | High, about 6.6 g/cm3 | Type dependent, below about 50-150 ns | High light output, non-hygroscopic, no Lu-176 background | Non-hygroscopic |
| CdWO4 | Very high, about 7.9 g/cm3 | Very slow, about 14000 ns | Low afterglow CT and scanning applications | Non-hygroscopic |
| LaBr3(Ce) | About 5.1 g/cm3 | Fast, about 20 ns | Excellent energy resolution and high light yield | Hygroscopic; encapsulation required |
Original Product Data Tables
The following technical tables are retained from the existing product page for specification review.
| Properties of CaF2(Eu) Scintillators (CaF2:Eu Scintillators) | |
| Density (g/cm3) | 3.18 |
| Melting Point (℃) | 1360 |
| Crystal Structure | Cubic |
| Decay Constant (ns) | 940 |
| Cleavage Plane | -111 |
| Index of Refraction | 1.47 |
| Wavelength of Max Emission (nm) | 435 |
| Hardness (Mohs) | 4 |
| Hygroscopicity | No |
| Light yield (photons/keV) | 19 |
| Light output of NaI(Tl) (%) | 50 |
Customization and Quality Control
- Drawing reviewDimensions, tolerances, surface finish, and assembly details are reviewed 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 testingRelevant optical, scintillation, or laser-related checks can be discussed when test conditions are defined.
- Packaging supportProtective packaging, wrapping, housing, or handling requirements can be specified for shipment and integration.
- Prototype to batch supplySmall samples and repeat production can be supported depending on material availability and specification.
Frequently Asked Questions
What information is needed for a CaF2(Eu) Scintillation Crystal quotation?
Please provide dimensions, tolerance, quantity, application, surface finish, packaging or assembly requirements, and any drawing or datasheet. For detector products, include readout and test conditions when available.
Can ATR Crystal customize CaF2(Eu) Scintillation Crystal?
Yes. ATR Crystal can review custom geometry, material options, finishing, packaging, and inspection requirements according to the application.
What applications is CaF2(Eu) Scintillation Crystal used for?
CaF2(Eu) Scintillation Crystal is commonly considered for beta particle detection and related research or OEM systems where its material properties match the design requirements.
Which specifications should be confirmed before ordering?
Important items include Chemical formula, Crystal family, Typical application, Readout compatibility. Final acceptance criteria should be agreed before production.
Can samples and production quantities both be supplied?
Sample and batch supply can usually be discussed, depending on material availability, geometry, tolerance, and processing complexity.
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