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Department of Human Services

Radioactive Materials Licensing

                                                                                                  
RML program staff
Explanation of Specific and General Licenses
RML is the acronym for Radioactive Materials Licensing. Oregon's authority to regulate radioactive materials originated in 1965 upon then Gov. Mark Hatfield's signing of an Agreement with the U.S. Atomic Energy Commission. The Agreement, which made Oregon an "Agreement State," authorized the state to regulate byproduct material, source material, and special nuclear material in quantities not sufficient to form a chain reaction.


Byproduct material means any radioactive material that is produced during fission or neutron activation in a nuclear reactor during a chain reaction; source material means uranium or thorium; and special nuclear material means fissionable materials (radioactive materials that will split or fission) in quantities less than those that will sustain a chain reaction (less than a critical mass). Agreement States cannot license any nuclear reactor that will sustain a chain reaction by itself. Oregon also has authority to regulate Naturally Occurring and Accelerator Produced Radioactive Materials (NARM).


The Radioactive Materials Licensing Program is located in the Radiation Protection Services Section of the Office of Environmental Public Health, Health Services, Oregon Department of Human Services. The RML Program includes licensing, inspection, and environmental surveillance and control of radioactive materials.


Questions should be addressed to Todd Carpenter, Manager of the RML Program by telephone at 971-673-0500 or by E-mail to todd.s.carpenter@state.or.us. You may also contact the RPS Program Manager, Terry Lindsey at 971-673-0499 or E-mail to terry.d.lindsey@state.or.us

The RML program charges specific license fees and general license registration fees. OAR 333-103-010 and 333-103-105 document license and registration fees for specific licenses and general license registrations.


The Radioactive Materials Licensing program staff are charged with maintaining radiation exposures in Oregon As Low As Reasonably Achievable (ALARA). The Health Services mission ensures protection of public health and safety. RML personnel have extensive training in hard science (chemistry, physics, biology, engineering) and have been trained in the health effects of radiation. RML personnel are called 'Health Physicists'.

RML staff include:

Name

Phone Number

E-mail Address
Todd Carpenter 
Administrative Licensing Manager
971-673-0500 todd.s.carpenter@state.or.us
Daryl Leon, Health Physicist 971-673-0498 daryl.a.leon@state.or.us
Sylvia Martin, Health Physicist 971-673-0503 sylvia.l.martin@state.or.us
Kevin Siebert, Health Physicist 971-673-0506 kevin.h.siebert@state.or.us
Justin Spence, Health Physicist 971-673-0508 justin.i.spence@state.or.us
David Murdza, Licensing Assistant 971-673-0504 david.l.murdza@state.or.us

 

Explanation of Specific and General Licenses

The RML program issues a specific license to persons who use radioactive materials in hospitals, universities, and industry. This license requires named persons, requires training documentation, specifies places of use, and designates exactly which materials may be used. Specific licenses may be issued for individual materials (e.g. gauges) or for facility types (e.g. research). The RML program provides extensive support documentation for persons applying for a specific radioactive materials license (see attached files below for examples of documentation).


The RML program registers certain types of radioactive materials used in industry (gauges) and clinics. These materials are called general license materials. General license materials are considered inherently safe because of their quantity or design. Clinics use small amounts of general license radioactive material for diagnostic tests. An example of such a test is the T-4 for hyperthyroidism. Industrial sites use larger quantities of general license material in devices known as "fixed gauges." These gauges measure or control thickness, density, and other engineering and quality control aspects of paper, fiberboard, and food products during manufacture and processing.


NOTE: Food products do not become radioactive when these guages are used; the radiation from the guage acts the same way as an x-ray of your chest, and it does not harm the product. At this time, Oregon has no food irradiation businesses.

 
Page updated: October 25, 2007

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