Quantulus GCT

Advanced low-activity time-resolved liquid scintillation counter for multiuser environments. Incorporates patented GCT and BGO guard technologies for ultra-low background detection. Designed for environmental, industrial, and research applications involving radionuclides.

• Status: Active
• Country: United States of America
• Isotopic: Yes
• Analyte Type / Target Of Analysis: Radioactive isotopes
• Measurable Isotopes/Elements: ³H, ¹⁴C, ⁹⁰Sr, ²²²Rn, ²²⁶Ra, ¹³⁴Cs, ¹³⁷Cs, and others
• Sensitivity
  : Enhanced by dynamic color correction and luminescence adjustment
• Background
  : Near-background levels using BGO guard technology
• Sample Capacity: Up to 408 × 20 mL or 720 × 4/7 mL vials with Varisette™ cassette system
• Detection Type
  : Photomultiplier-based coincidence detection with dual PSA discriminator
• Energy Range
  : 0–2000 keV
• Efficiency Normal Count Mode
  : ³H: >58%, ¹⁴C: >94% (minimum acceptable efficiency)
• Figure Of Merit (FOM (E2/B)
  : ³H: >400, ¹⁴C: >1000 (normal mode); ³H: >880, ¹⁴C: >3500 (super low-level mode)
• Observed Performance
  : ³H E²/B > 131,000; ¹⁴C E²/B > 1,030,000 (optimal performance conditions)
• Alpha/Beta Separation
  : Yes, with enhanced PSA histogram and dual PSA discriminator for mixed samples
• Gas Supply: Not required
• Power Specifications: 100–240 VAC, 50/60 Hz; Power consumption: <800 VA
• Environmental Specifications: Operating temperature: 15–30°C; Humidity: 30–80%
• Physical Specifications: 103 cm W × 47 cm H × 112 cm D; Weight: 238 kg (523 lbs)