Re: "Hot Particle"

[Islands8@aol.com]

Chris,

NCRP 106 provides information regarding your question. In addition, you may contact the San Onofre Nuclear Generating Station's Radiological Engineering Group for detailed information regarding detection, control and lessons learned. They have a model program that works.

In general, I understand that Hot Particles are Activated Crud (Activated Stellite Particles) while Spent Fuel Fragments (Fuel Frags)are the "critters" of concern due to the High Energy Beta component in regard to personnel exposure. Hot Particles (Cobalt/Cesium) with activities below 3000 ncpm are generally of no concern regarding personnel exposure. 

You may also contact PNNL to gain an accurate definition of the term.

Aloha,

Edmond M. Young, Jr.
Health Physicist
Brookhaven National Labs
631-344-4424
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