GUIDELINES FOR USING TLD BADGE

GUIDELINES FOR USING TLD BADGE 

1. TLD badges are to be used only by persons directly working in radiation. Administrators, darkroom assistant, sweepers, etc. need not be provided with TLD badges.

2. TLD badge is used to measure the radiation dose. It does not protect the user from the radiation.

3.  The name, personnel number, type of radiation (X or gamma), period of use, location on the body (chest or wrist), etc., should be written legibly in block letters on the front side of the badge.

4.  A TLD badge once issued to a person should not be used by any other person.

5.  Each institution must keep one TLD card loaded in a chest TLD holder as control, which is required for correct dose evaluation. It should be stored in a radiation free area, where there is no likelihood of any radiation exposure.

6. TLD badge should be worn compulsorily at the chest level.It represents the whole body dose equivalent. If lead apron is used, TLD badge should be worn under the lead apron.

7. While leaving the premises of the institute, workers should deposit their badges in the place where control TLD is kept.

8. A badge without filter or damaged filter should not be used. It is replaced by a new holder.

9. Every radiation worker must ensure that the badge is not left in the radiation field or near hot plates, ovens, furnaces, burners, etc.

10.   Every new radiation worker has to fill up the personnel data form, and should be to the  accredited agency.

11.  All the used or unused TLD badges should be return, after every service period (quarterly) in one lot so as to reach 10th of next month.