Page 9 - Radiation Safety

PERSONAL MONITORING

SOURCE : Bio assay Counter:
1. Inhalation 1. Whole Body Counter
2. Digestion 2. Lung Counter
3. Absorption (Skin / 3. Thyroid Counter
wound) ASSESSMENT
4. Direct exposure METHOD

INTERNAL

PERSONAL MONITORING

EXTERNAL

PASSIVE ACTIVE
Pocket Dosimeter
Thermo luminescence Optically Stimulated (Quartz Fiber Electrode – QFE)
Film Badge
Dosimeter (TLD) Luminescence (OSL)

Photographic
Film

Cheap Expensive Moderate
Permanent Record Temporary Record Temporary Record • Fasi-thermal (n, χ, γ ) at high
radiation area
Not Reusable Reusable Reusable • Gas ionization
Additional record to radiation No additional record to Additional record to radiation
quality radiation quality quality
Energy Dependent Energy independent Energy independent

Estimated Equivalent Tissue Equivalent Tissue Equivalent
Accurate & Sensitive Accurate & Sensitive