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QSA Global, Inc.
40 North Avenue Burlington, MA 01803
888.272.2242
781.272.2000
qsa-global.com
Operations Manual
MAN-038 March 2019
Page 25 of 100
STEP 5 Continued
Dismantling equipment Continued
Surveying
After installing the locking mechanism’s protective cover and the outlet port cover, survey the entire
circumference of the gamma-ray source projector with the survey meter to ensure the source is fully
shielded and properly secured. The survey should not measure more than 2 mSv/hr (200 mR/hr) on
any surface of the gamma-ray source projector and should indicate the same measurement as the
initial survey.
Storage
Whenever unattended by qualified radiographers, the gamma-ray source projector must be kept
physically secured in a designated storage area to prevent tampering or removal by unauthorized
personnel. Additionally, the storage area must be secured such that no unauthorized personnel are
allowed access. The gamma-ray source projector must be locked (key removed) and stored in a clean
and environmentally protected (dry) storage area that also provides the considerations to minimize the
potential dangers from fire or explosion. Perform a storage survey on the surface of the gamma-ray
source projector to verify the dose rate is less than 2 mSv/hr (200 mR/hr) and record.
A radioactive material warning notice must be posted on the door or entrance of the storage area. The
door or entrance must be locked to prevent access by unauthorized personnel. As required by most
regulatory jurisdictions, security devices must be activated to detect any unauthorized intrusion into the
radioactive materials storage area.