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

JAEA-Testing 2011-007
JAEA-Testing 2011-007
(c) Temporary storage of waste generated from the decontamination
Temporarily store safely the mud and fallen leaves collected during the
decontamination, a flocculation/precipitation product generated by the treatment
of the pool water and materials and tools used in the work but that cannot be
decontaminated. The storage procedures are as follows.
Spread water sealing sheets such as blue sheet double at the predetermined place.
Stack the waste bags to be stored temporarily.
Fold up the blue sheets so that the stacked bags are packed with the sheet. Put a
blue sheet cover to protect it from rain water.
Put soil on the cover sheet to stabilize the sheet, which is also expected as a
shielding against the radiation.
Measure the ambient dose rate at different conditions; the condition before
carrying in the waste, that in which waste bags are stacked at the planned
location, that after the blue sheets, covering the waste bags, have been fixed with
sand and soil, in order to recognize changes in the ambient dose rate. Write down
a rough map indicating the location of the waste and measurement results in the
form, “Record 18: Ambient dose rate at the temporary storage of the waste”.
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