brown university homepage
   
emergency response information
biological safety information
fire safety information
laboratory safety information
laser safety information
occupational health and safety information
radiation safety home
clean air compliance information
hazardous waste management information
pollution prevention information
oil spill information
transportation information
toxic substance control act
wastewater information
ehs contact list
training information
 
 

Radiation Safety Index Page > Radiation Dosimetry Badge Usage

When Radiation Monitoring Badges Are Required
Optional Monitoring
How to Request or Cancel Radiation Monitoring Badge Usage


When Radiation Monitoring Badges Are Required [return to the top]

Under Brown University requirements:

Adults likely to receive, in 1 year from sources external to the body, a dose in excess of 10% of the limits in section 5.1 shall wear a dosimeter during working hours.

Minors and declared pregnant women likely to receive, in 1 year from sources external to the body, a dose in excess of 10% of the limits in section 5.1 shall wear a dosimeter during work hours.

These dosimeters shall be changed and processed each quarter. Records of the dose received during the quarter shall be maintained by the Radiation Safety Office and shall be sent annually to each authorized user. Requests for dosimetry service for authorized users shall be addressed to the Radiation Safety Office.

Persons who use sources of radiation, except those who exclusively use low-energy beta emitters such as Hydrogen-3, Carbon-14, Sulfur-35, and Phosphorus-33, or use pure alpha emitters, may be required to wear dosimeters. Individuals under 18 must wear a dosimeter if there is likelihood of a detectable exposure. Anyone entering a high-radiation area (dose rate 100 mrem/hr) must wear a self-reading dosimeter. Extremity dosimeters (ring badges) must be worn if exposure to the hands and forearms greater than 10% of the permissible limits is possible.

Optional Monitoring [return to the top]

If you work in a laboratory in which gamma emitters or energetic beta emitters are used, you may request radiation monitoring badge, even if you do not meet the criteria for required monitoring.

Monitoring is not generally provided for persons working in laboratories in which only alpha emitters or low energy beta emitters (< 250 keV) are used, since our radiation monitoring badges cannot detect these radiations.

How to Request or Cancel Radiation Monitoring Badges [return to the top]

To request radiation-monitoring services, to cancel monitoring badges, or to request a replacement for a lost or damaged badge, you may contact Radiation Safety staff directly by completing the Application for Radiation Dosimeter Form. You may also ask the PI in charge of your lab or lab manager to request monitoring services. Please provide Radiation Safety staff with the following information: name, department, name of the laboratory in which the primary radiation exposure occurs, purpose of request (i.e., new service, replacement for a lost/damaged badge, etc.), the source of radiation exposure (radioisotopes, x-ray machines, etc.), length of time for which monitoring service is needed, and the urgency of the request.

Application for Radiation Dosimeter Form RSO-8

 

Developed by Daniel_Sarachick@brown.edu
Office of Environmental Health & Safety
Providence, RI 02912 Box 1914
Last updated on 07/20/2005