Skip to main content
Main Menu
  • Products
    Back
    Products
    • Radiation Detection Products
      Back
      Radiation Detection Products
      • Crystal Scintillators
        Back
        Crystal Scintillators
        • Crystal Scintillation Materials
          Back
          Crystal Scintillation Materials
          • Standard Detector Assemblies
          • DUAL Gamma Neutron Detection
          • Pixellated Arrays
          • Nuclear Imaging
          • Rugged Extreme Environment
          • SiPM Integrated Detectors
        • Standard Design Product List
        • Electronics
          Back
          Electronics
          • Plug-on Bases
          • Sensor Kit (Detector with MCA)
        • Organic Scintillators
          Back
          Organic Scintillators
          • Organic Scintillation Materials
            Back
            Organic Scintillation Materials
            • Cast Sheet and Detectors
            • Cells for Liquid Scintillators
            • Scintillating Fiber
            • Extended Life Plastic
            • Neutron Detection NeuPort NeuTruck
            • Fast or Thermal Neutron Detectors
            • Plastic Optical Components
            • Assembly Materials
          • Efficiency Calculator
          • Materials Selector
        • Photonic Products
          Back
          Photonic Products
          • SYNTHETIC SAPPHIRE
            Back
            SYNTHETIC SAPPHIRE
            • Sapphire Materials
            • Large Sapphire Windows
            • Tubes & Rods
            • Bonding for Complex Shapes
            • Curved Sapphire
            • Protective Transparent Window
          • X-RAY MONOCHROMATORS
          • GARNET SUBSTRATES
      • Application
        Back
        Application
        • Portable Detection
        • Nuclear Research
        • Imaging
      • Markets
        Back
        Markets
        • MEDICAL
          Back
          MEDICAL
          • PET
          • SPECT
          • Blood Measurement & other applications
          • Bone Mineral Densitometry
          • Sapphire for Intraoperative Imaging
        • SECURITY
          Back
          SECURITY
          • First Responders
          • Border Inspection
          • Baggage Scanners
        • PHYSICS
        • OIL & GAS
          Back
          OIL & GAS
          • Wireline
          • MWD & LWD
          • Aerial Survey
          • Surface Measurements
        • INDUSTRIAL-RADIATION
          Back
          INDUSTRIAL-RADIATION
          • Environmental Monitoring
          • Health Physics
          • Nuclear Fuel & Safeguards
          • Scrap Steel Monitoring
          • Process Monitoring and Gauging
        • PROTECTION & AEROSPACE
          Back
          PROTECTION & AEROSPACE
          • Transparent Protective Window
          • Infra-Red Countermeasures
          • Optical Vision System
        • INDUSTRIAL-SPECIALTY MATERIALS
          Back
          INDUSTRIAL-SPECIALTY MATERIALS
          • Semiconductor Manufacturing
          • Microwave - RF
          • Excimer Laser
          • Optical Isolator Wafers
          • X-Ray elemental analysis
      • Contact Us
        Back
        Contact Us
        • Contact & Site Locator
        • Request a Contact
        • Request a quote
      • Media Center
        Back
        Media Center
        • Resource library
        • News & Events
      • FAQs
      world SAINT-GOBAIN
      Logo Saint-Gobain Crystals
      • Products
        • Radiation Detection Products
          • Crystal Scintillators
            • Crystal Scintillation Materials
            • Standard Detector Assemblies
            • DUAL Gamma Neutron Detection
            • Pixellated Arrays
            • Nuclear Imaging
            • Rugged Extreme Environment
            • SiPM Integrated Detectors
          • Standard Design Product List
          • Electronics
            • Plug-on Bases
            • Sensor Kit (Detector with MCA)
          • Organic Scintillators
            • Organic Scintillation Materials
            • Cast Sheet and Detectors
            • Cells for Liquid Scintillators
            • Scintillating Fiber
            • Extended Life Plastic
            • Neutron Detection NeuPort NeuTruck
            • Fast or Thermal Neutron Detectors
            • Plastic Optical Components
            • Assembly Materials
          • Efficiency Calculator
          • Materials Selector
        • Photonic Products
          • SYNTHETIC SAPPHIRE
            • Sapphire Materials
            • Large Sapphire Windows
            • Tubes & Rods
            • Bonding for Complex Shapes
            • Curved Sapphire
            • Protective Transparent Window
          • X-RAY MONOCHROMATORS
          • GARNET SUBSTRATES
      • Application
        • Portable Detection
        • Nuclear Research
        • Imaging
      • Markets
        • MEDICAL
          • PET
          • SPECT
          • Blood Measurement & other applications
          • Bone Mineral Densitometry
          • Sapphire for Intraoperative Imaging
        • SECURITY
          • First Responders
          • Border Inspection
          • Baggage Scanners
        • PHYSICS
        • OIL & GAS
          • Wireline
          • MWD & LWD
          • Aerial Survey
          • Surface Measurements
        • INDUSTRIAL-RADIATION
          • Environmental Monitoring
          • Health Physics
          • Nuclear Fuel & Safeguards
          • Scrap Steel Monitoring
          • Process Monitoring and Gauging
        • PROTECTION & AEROSPACE
          • Transparent Protective Window
          • Infra-Red Countermeasures
          • Optical Vision System
        • INDUSTRIAL-SPECIALTY MATERIALS
          • Semiconductor Manufacturing
          • Microwave - RF
          • Excimer Laser
          • Optical Isolator Wafers
          • X-Ray elemental analysis
      • Contact Us
        • Contact & Site Locator
        • Request a Contact
        • Request a quote
      • Media Center
        • Resource library
        • News & Events
      • FAQs

      You are here

      1. Home
      2. Products
      3. Radiation Detection Products
      4. Efficiency Calculator

      Efficiency Calculator

      Gamma rays and X-rays are high-energy photons. Gamma rays are produced by the nucleus of an atom and are typically in the 50 keV to 10 MeV energy range. X-rays are produced by the electrons around the nucleus and are typically in the 1 to 100 keV range.

      The following results are based on calculations of this exponential function for certain values of x for various scintillators. The number of photons of a given energy stopped by a certain thickness is the difference I0- I. However, instead of calculating for different I0's, the ratio of (I0- I)/I0 is calculated and it is called the "Percent Absorption". The equation used for the calculation is , where t is the material thickness, m is the total mass attenuation coefficient, and r is the material density. 

      Specific Percent Absorption for specific energies and materials can be similarly calculated using the total mass attenuation coefficients found at NIST.gov.

      Percent Absorption does not tell the user the fraction of original photons that are completely absorbed in the material.  To find this fraction of full energy absorption, multiply the Percent Absorption by the Peak-to-Total Ratio.  A list of Peak-to-Total Ratios for our products and for common sizes can be found in Efficiency Calculations Brochure.

      If the amount of energy absorbed by the material is desired then calculations can be performed using mass energy-absorption coefficients, which can be found at NIST.gov.

      For neutron detection efficiency, a good resource for calculating neutron attenuation is found at BNL.gov

      Horizontal Tabs

      SCINTILLATOR
      SHIELDING

      Thickness (in mm) based on Percent Absorption

      50%
      75%
      88%
      0.00 mm
      0.00 mm
      0.00 mm

      Thickness (in mm) based on Stopping Power

      50%
      75%
      88%
      0.00 mm
      0.00 mm
      0.00 mm

       Contact us to learn more!

      Saint-Gobain Crystals is a business of
      Saint-Gobain Ceramic Materials

       

      Hear what we do from a few of the Crystals' team. Click here

       

       

       

      FOLLOW US

      LinkedIn        Youtube

      • Radiation Detection
      • Synthetic Sapphire
      • X-Ray Monochromators
      • Garnets
      • About Us
      • Faqs
      • News & Events
      • ISO Certificates
      • Conditions of Sale
      • Legal
      • CATSCA
      • Site Map

       

       Contact Us

       Request a Quote

       Phone and Email

       

      © Copyright Saint-Gobain 2020. All rights reserved.