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Spectrum Techniques, LLC
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  5. Spectrum - Model SDA38 - Sodium Iodide ...

Spectrum - Model SDA38 -Sodium Iodide Scintillation Detector

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The SDA, Sodium Iodide Scintillation Detector will detect gamma radiation. It is not suitable for alpha or beta radiation.

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The SDA38 Sodium Iodide Scintillation Detector features a 1.5 x 1.5 inch NaI(Tl) crystal in an aluminum housing, including a photomultiplier tube, an internal magnetic shield, and high voltage and signal BNC connectors.

Cables not included.

  • Relative Light Yield: 100%
  • Photon Yield/MeV (PMT Sensor): 45,200
  • Scintillation Quantum Efficiency with PD: 12.85%
  • Radiation Length: 2.59 cm
  • Radiation Hardness to gamma-rays: >1000 rad
  • Linear Attenuation Coefficient: 0.3505 cm-1
  • Thickness to Attenuate 90% of gamma-rays : 6.5 cm
  • Full Width at Half Maximum (FWHM): 8.5 % @ 662 keV for Cs-137
  • α/β Ratio Cleaved Surface: 0.6-0.7
  • α/β Ratio (241Am-Tl) Doping      0.82
  • NaI(Tl) Size (length x diameter): 1.5 x 15. inches (38.1 x 38.1 mm)
  • Housing Material: Aluminum
  • Type of Connectors: – High Voltage: BNC, – Signal: BNC
  • Approximate Weight: 0.43 kg (0.96 lbs)