CeF3

Technical Specifications

Custom specifications available upon request

The CeF₃ (cerium fluoride) crystals offered by our company are optical crystals with outstanding comprehensive performance. With their unique broad transmission range (especially covering deep ultraviolet to infrared), extremely fast scintillation decay time, and excellent radiation resistance, they have become indispensable core materials in high-end physics experiments, nuclear medical imaging, and deep ultraviolet lithography.Through advanced crystal growth and post-processing technologies, we ensure that the crystals possess high optical uniformity and low absorption characteristics, meeting the most demanding application requirements.

Basic Properties

Physical Property	Value	Remarks
Crystal Structure	Hexagonal system	/
Density	6.16 g/cm³	/
Mohs Hardness	4–5 Mohs	/
Melting Point	1460 °C	/
Transmission Range	0.3–5.0 μm	One of the core advantages: covers a broad band from deep UV to mid‑IR
Refractive Index	1.62	/
Thermal Expansion Coefficient	α∥ ≈ 16.5 × 10⁻⁶ /K, α⊥ ≈10.5 × 10⁻⁶ /K	20 °C–400 °C
Thermal Conductivity	3.5 W/m·K	At room temperature
Scintillation Performance	Emission peaks ~310 nm / ~340 nm	/
Decay Time	10–30 ns	Second core advantage: extremely fast decay time, suitable for high count‑rate applications
Light Yield	5,000 photons/MeV	/
Radiation Resistance	High	Third core advantage: minimal performance degradation and long lifetime in high‑radiation environments
Hygroscopicity	Slight	Should be stored and handled in a dry environment
Relative Dielectric Constant (1 kHz)	ε ≈ 8–10	/

CeF₃ Crystal Specifications

Specification Item	Parameter Details
Material	CeF₃
Standard Orientation	c-axis / a-axis
Optical Uniformity	Δn ≤ 2 × 10⁻⁵ @ 632.8 nm
Wavefront Distortion	< λ/8 @ 632.8 nm
Crystal Size	Diameter: 1"–3"; Thickness: 0.5 mm – 50 mm (custom sizes available upon request)
Dimensional Tolerance	±0.1 mm (custom tolerances available upon request)
Parallelism	< 20″
Perpendicularity	≤ 10′
Flatness	λ/8 @ 633 nm
Surface Finish	10–5 (MIL-PRF-13830B)
Beveled Edge	< 0.2 mm × 45°
Bulk Absorption Coefficient (@355 nm)	< 0.01 /cm
Coating	Available with deep UV (e.g., 193 nm), visible, or infrared anti-reflection coatings; custom coatings accepted
Shelf Life	12 months (must be stored sealed in a dry (<40% RH), dust-free, room-temperature environment)

Application Fields

1. High-Energy Physics & Nuclear Physics Experiments

Electromagnetic Calorimeters for Particle Detectors: As a scintillator, CeF₃’s extremely fast decay time and high radiation hardness make it essential for particle detection in high-luminosity colliders (such as LHC, CEPC, etc.). It enables precise measurement of energy and timing for electrons and photons.

2. Nuclear Medical Imaging

PET/MRI-Compatible Detectors: Its fast timing characteristics help improve the time resolution of positron emission tomography (PET). Moreover, being non-hygroscopic and MR-compatible, it offers a solution for next-generation high-performance PET detectors.

3. Semiconductor Manufacturing

Deep Ultraviolet Lithography Optical Components: Benefiting from its excellent transmission at deep UV wavelengths such as 193 nm and strong laser damage resistance, CeF₃ can be used to fabricate lenses, prisms, and other optical elements for lithography machines.

4. Scientific Research & Specialized Equipment

High-Speed Scintillation Detection and Imaging: Applied in scientific instruments requiring high time resolution, such as time-of-flight measurements and nuclear spectrometers.

UV/Deep-UV Laser System Windows/Prisms: Utilizing its broad UV transmission range, it serves as an ideal material for laser cavity mirrors, windows, and dispersive elements.

5. Radiation Detection & Safety

Nuclear Radiation Monitoring & Environmental Monitoring: Used to manufacture radiation detectors and monitoring devices capable of stable operation in high-radiation environments.

CeF3

Basic Properties

CeF₃ Crystal Specifications

Application Fields​

Application Fields