Page 232 - Emergency Response Book

Sources Of Emergency 6

3. Loss of Control of Radioactive Materials

❖ Sealed Source

➢ Failure of shutter to close thereby emitting uncontrolled

radiation

➢ Stolen or misplace source

➢ Unauthorized operation of radiation devices

❖ Unsealed Source

➢ Emergency involve spillage and contamination of

radioactive sources onto workers, working area and

environment.

➢ Usually unsealed sources are in liquid form

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