JAEA-Testing-2011-007.pdf:46.74MB - 日本原子力研究開発機構

Contents
1. Introduction
2. What should be checked at first?
JAEA-Testing 2011-007
JAEA-Testing 2011-007
(1) Check what needs to be done and by when.
(2) Confirm policy of the national and local governments.
3. Preparation
(1) Gather workers and assign them tasks
(2) Measure radioactivity before the work
• Record 1: Radioactivity concentration of the pool water
• Record 2: Ambient dose rate map of the swimming pool and pool side before
the procedures
• Record 3: Ambient dose rate map in the work area (before the procedures)
(3) Procure materials and tools required for the work
• Record 4: Material and tools list
(4) Set a time schedule of the work
• Record 5: Time schedule of the work
4. Start decontamination procedures
(1) Confirm that the safety of the workers is ensured.
• Record 6: Record of personal dosimeters
(2) Discharge pool water whose radioactivity concentration meets the criteria for
drain
• Record 7: Dose rate measured on the surface of bags that contains mud
accumulated at the discharge flow path
• Record 8: Radioactivity concentration of discharged water without
decontamination treatment – Sampled at ( )
- 95 -
- 95 -