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Tl:Csl Crystal

POC-OC-122503-Tl:CsI Crystal

  • Broad emission spectrum (350nm to 700nm) suitable for SPD applications.
  • High-performance scintillation properties for heavy particle detection.
  • Stable performance under strong gamma-ray backgrounds.
  • High optical transparency with efficient light emission.
  • OEM services available for customization to user specifications.

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

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General Description

Thallium-doped Cesium Iodide (Tl:CsI) is a versatile and efficient scintillation crystal, renowned for its broad emission spectrum ranging from 350nm to 700nm. This property makes it highly compatible with SPD (Single Photon Detector) applications. Its ability to detect heavy charged particles under strong gamma-ray background conditions makes Tl:Csl Crystal an excellent choice for applications in nuclear physics, high-energy physics, and environmental monitoring. The crystal’s exceptional luminescence efficiency combined with customizable design and dimensions enhances its usability across diverse fields.

General Application and Examples

Tl:CsI crystals are utilized in various cutting-edge technologies and research fields, including:

  • Environmental Monitoring: Used in detecting pollutants and radiation levels with high sensitivity.
  • Nuclear and High-Energy Physics: Ideal for detecting charged particles and high-energy gamma rays.
  • Oil Well Logging: Facilitates radiation monitoring during exploration and drilling.
  • Gamma Ray Detection: Due to its strong performance in gamma-rich environments, Tl:Csl Crystal is widely employed in gamma-ray spectroscopy systems.
  • Scientific Instrumentation: High compatibility with detectors for particle physics experiments and imaging systems.

Chemical and Structural Properties

Attribute Value
Density (g/cm³) 4.53
Melting Point (°C) 621
Emission Peak (nm) 550
Decay Constant (ns) 1000
Light Output (%) 47%
Crystal Structure Cubic
Cleavage Plane (100)
Hygroscopicity Yes

Optical Properties

  • Broad spectral emission (350nm to 700nm) with peak output at 550nm.
  • Suitable for high-energy radiation detection and photon counting.
  • High optical transparency for efficient photon emission.

Standard Fabrication Specifications

Specification Range/Details
Clear Aperture >90%
Surface Flatness λ/10 @ 550nm
Parallelism <10 arcseconds
Surface Quality 20-10 Scratch/Dig
Dimensions Customizable

Spectrum Transmission Curve

The  transmission spectrum is available, showing high absorption and emission peaks at visible wavelengths, particularly in the red, green, and blue regions. This curve confirms the crystal’s efficiency for multicolor laser operations.

Coating Specification

  • Anti-reflection (AR) coatings available upon request for optimized performance.
  • Options for wavelength-specific coatings (e.g., 350–700nm range) to improve light collection 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.
Face Dimensions Length Orientation SKU Price (USD)
20x20mm 1.0mm [100] 8001 $500
25x25mm 1.5mm [100] 8002 $550
30x30mm 2.0mm [100] 8003 $600
Customizable As needed As required – Quote available

POC-OC-122503-Tl Csl Crystal

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