Products Description
The Beryllium caps products are made from high purity beryllium material that withstands corrosive materials, high temperature, and durable from environmental wear and tear. During X Ray diffraction (XRD) experiments Beryllium cap used to close the isolation window between the samples and X-rays guarantees caps do not absord or scatter Xrays which ensures experimental accuracy and reliability. Beryllium cap demonstrated stable characteristics under elevated temperatures and during thermal expansion/contraction, thus meeting structural integrity and performance criteria. Hence, Beryllium caps specifications exceed all high temperature test requirements. Moreover, different sizes and configurations to meet other application needs can be provided in addition to surface treatment as per customer request. Surface treated beryllium caps are applicable in CT and other medical devices, anti-static devices, X-ray inspection and analysis devices, electron microscopes, and accelerator systems.
Features of Beryllium Cap
- Low density: Due to its low density, Beryllium Cap weighs less than most metals. Therefore, it can be used in applications with weight restrictions or sensitive use cases.
- High melting point: Beryllium Cap is high temperature applicable as most metals have a significantly lower melting point than ~1278°C (2343°F).
- Dimensional stability: Beryllium Cap is suitable for high-fidelity tasks since it can withstand an extensive range of temperatures without deformation.
- Thermal conductivity: Beryllium Cap's thermal conductivity is beneficial for heat dissipation.
- X-ray transparency: This material has important transparence pertines to X-rays which is helpful for some scientific and medical reasons.
Applications of Beryllium Caps
Nuclear Applications: as a moderator and neutron reflector, a beryllium cap is placed on nuclear reactors. Because beryllium is capable of neutron slowing down, beryllium caps can potentially be used to shield or guard parts of nuclear reactors.
Aerospace: Weight is arguably the most important parameter in the aerospace industry. Where every ounce is precious, beryllium caps can be placed on fast moving aircrafts and space vehicles.
Optics: Beryllium caps can be placed in devices like X-ray telescopes and detectors used for X-ray optics due to their transparency to X-rays.
High-Temperature Applications: In equipment such as rocket engines, beryllium caps can be used for nozzles which contend with extreme temperatures, as well as in high-temperature test chambers.
Electronics: Where heat control is a requirement, beryllium can prove useful because of his thermal stability and electrical conductivity in certain electronic applications.
Core Advantages
| Industry | Typical Applications | Unique Value Proposition |
| Aerospace | Satellite optical mounts, missile guidance systems, space telescope mirror substrates | Only material combining zero thermal distortion with ultra-high stiffness |
| Nuclear | Neutron reflectors, first wall materials for fusion devices | Unmatched neutron performance |
| Electronics | High-precision inertial navigation systems, semiconductor heat spreaders | CTE perfectly matches silicon chips |
| Defense | Hypersonic vehicle leading edges, electro-optical targeting systems | High-temperature resistance + impact tolerance |
| Medical | CT scanner collimators, dental X-ray equipment | Optimal X-ray transmission characteristics |
Specification of Beryllium Cap
|
Grade |
Beryllium |
|
Technique |
Rolling,Machining,Cutting,Sintering |
|
Purity |
Be≥95% |
|
Diameter |
16mm-200mm or Customized |
|
Thickness |
0.02-1.5mm |
|
Density |
1.85g/cm3 |
|
Shape |
Round |
FAQ of Beryllium Cap
1. What are the main advantages of beryllium windows?
✅ Ultra-high X-ray transmittance:
Transmittance >90% in the energy range of 1–20 keV
K absorption edge is only 111 eV, much lower than other metals
✅ Lightweight and high strength:
Density 1.85 g/cm³ , but stiffness is 4 times that of aluminum
Can be made into ultra-thin windows while maintaining structural integrity
✅ Excellent thermal stability:
Thermal conductivity 200 W/(m·K), can dissipate heat quickly
Thermal expansion coefficient 11.4×10⁻⁶/K, minimal deformation at high temperature
✅ Excellent vacuum sealing:
Air tightness <10⁻⁹ Pa·m³/s, suitable for ultra-high vacuum systems
2. What are the typical application scenarios of beryllium windows?
🔹 X-ray tubes: medical CT, industrial inspection, semiconductor analysis
🔹 Synchrotron radiation: beam line front end, monochromator exit window
🔹 Space exploration: X-ray telescope, solar observation satellite filter
🔹 Scientific research equipment: plasma diagnosis, particle accelerator
3. How to Choose the Thickness of Beryllium Windows?
| X-ray Energy (keV) | Recommended Thickness (μm) | Transmission Rate |
|---|---|---|
| 1–5 (Soft X-rays) | 8–25 | 40–70% |
| 5–10 (Diagnostic X-rays) | 50–100 | 85–92% |
| 10–20 (Industrial CT) | 100–250 | 90–95% |
| >20 (High-energy X-rays) | 250–500 | 95–99% |
Note: Adjustments may be necessary based on the photon flux and heat load of the specific equipment.
4. What is the operational duration of a beryllium window?
Standard X-Ray Tubes: Provides 10⁷ – 10⁸ exposures which equates to around 3 to 5 years of roughly continuous use.
Synchronous Radiation Devices offer more than 5 years, dependent on photon flux.
Failure signs:
Transmittance decreases by >5%
Visible cracks or bulges
Deterioration of vacuum
5. What is the procurement cycle and price of beryllium windows?
⏳ Delivery time:
Standard specifications (Φ<50 mm): 4–6 weeks
Customized specifications (such as special-shaped windows): 8–12 weeks
6. What is the MOQ?
A: Depends on quantity, generally, no MOQ limit.
7. How to pay for it?
A: A bank transfer (T/T) will be acceptable.
8. What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
9. What is the package?
A: cartoon case or plywood case.
10.What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
11. What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
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