POLICY

A. Purpose

This policy describes Berkeley Lab's requirements for the monitoring of individuals and workspaces for radiation exposure levels, contamination, and airborne radioactivity.

B. Persons Affected

All persons who plan to work in or near an area controlled for radiological protection or who plan to work with or support work with radiation-generating devices or radiological materials

C. Exceptions

None

D. Policy Statement

D.1 Personnel Monitoring

1. External Dosimetry: Berkeley Lab's external dosimetry program is managed by the Radiation Protection Group (RPG). Elements of the program include, but are not limited to, the following:
   1. Radiation workers exposed to external ionizing radiation may be issued a dosimeter as required by their work authorization.
   2. RPG provides extremity dosimeters for personnel who have the potential to receive an extremity dose that is significantly higher than the whole-body dose.
   3. RPG provides electronic personnel dosimeters (EPDs)
2. Internal Dosimetry
   1. Berkeley Lab's internal dosimetry program is managed by the RPG and includes:
   2. In vitro (body fluid, excreta) monitoring
   3. In vivo (whole-body counting) analysis

D.2 Workplace Monitoring

1. General: Workplace monitoring provides a basis for posting and labeling of areas and equipment, developing work authorizations, implementing as low as reasonably achievable (ALARA) measures, issuing individual monitoring devices, and verifying the efficacy of design measures and engineering controls.
2. Passive Area Dosimetry: To document radiological conditions, detect changes in radiological conditions, detect the gradual buildup of radioactive material, verify the effectiveness of engineering and administrative controls, and identifying/controlling for potential sources of individual exposure to radiation, the RPG has established and maintains a comprehensive area dosimetry program (passive dosimeters). The measurements provide information that supports radiological safety decisions, particularly with regard to personnel doses and the requirement to monitor individual personnel doses.
3. Active Area Monitoring: To document radiological conditions, detect changes in radiological conditions, detect the gradual buildup of radioactive material, verify the effectiveness of engineering and administrative controls, and identifying/controlling for potential sources of individual exposure to radiation, the RPG has established and maintains a comprehensive area monitoring program (telemetered instruments). The measurement results provide information that supports radiological safety decisions, particularly with regard to personnel doses and the requirement to monitor individual personnel doses.
4. Surveys: Routine and periodic radiation and/or contamination surveys are performed to detect conditions, ensure that controls are adequate, decommission areas, or release/clear equipment and materials. These surveys are performed by:
   1. RPG staff
   2. Specifically trained and authorized Radiation Workers
   3. Specifically trained and authorized Advanced Radiation Workers
5. Air Monitoring: Based on RPG assessments of the operation and in accordance with RPG procedures, air sampling will be performed within areas where there is the potential for airborne radioactive contamination.

D.3 Instrumentation

RPG provides radiation workers with appropriate, calibrated radiation-detection equipment. The RPG provides training in the selection and use of instruments, in addition to instrument distribution, calibration, and maintenance.

E. Roles and Responsibilities

F. Definitions/Acronyms

G. Recordkeeping Requirements

The care, maintenance, and disposition of RPG records will be done in accordance with Berkeley Lab records management policies and procedures.

H. Implementing Documents

I. Contact Information

David Kestell

J. Revision History

DOCUMENT INFORMATION

Source Requirements Documents

• 10 CFR 835.401, General Requirements
• 10 CFR 835.402, Individual Monitoring
• 10 CFR 835.403, Air Monitoring

Related Berkeley Lab Policies

07.08.001.000 Radiological Control – Overview
07.08.002.000 Radiological Control Standards
07.08.003.000 Conduct of Radiological Work
07.08.004.000 Radioactive Materials
07.08.006.000 Radiological Training
07.08.007.000 Accelerator Safety