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Verification of some building materials as gamma-ray shields
Kulwinder Singh Mann1, Jyoti Singla, Vipan Kumar
1Department of Physics, Dravidian University, Kuppam, India. ksmann6268@gmail.com
Radiation Protection Dosimetry
|January 7, 2012
Summary
This study examined gamma ray shielding properties of low Z materials. Effective atomic number and incident photon energy determine shielding effectiveness, with soil and dolomite showing good performance in specific energy ranges.
Area of Science:
- Nuclear Physics
- Materials Science
- Radiation Shielding
Background:
- Gamma radiation poses significant health risks, necessitating effective shielding materials.
- Low atomic number (Z) materials are often explored for their unique shielding characteristics.
- Understanding shielding parameters is crucial for designing protective measures.
Purpose of the Study:
- To investigate the gamma ray shielding properties of selected low Z materials.
- To calculate key shielding parameters and assess their effectiveness.
- To establish the relationship between shielding effectiveness and material properties.
Main Methods:
- Calculation of mass attenuation coefficient, equivalent atomic number, effective atomic number, exposure buildup factor, and energy absorption buildup factor.
- Analysis of shielding effectiveness based on calculated parameters.
- Graphical representation of results for clear interpretation.
Main Results:
- Shielding effectiveness correlates directly with the effective atomic number of the material.
- The shielding character is dependent on the incident photon energy.
- Soil samples exhibited good shielding between 0.015-0.30 MeV.
- Dolomite demonstrated effective shielding in the 3-15 MeV energy range.
Conclusions:
- Low Z materials can be effective gamma ray shields, with performance varying by material and energy.
- Effective atomic number is a key indicator of shielding capability.
- Specific materials like soil and dolomite show promise for targeted shielding applications.
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