Quantcast Beta-Gamma Monitoring - doe-hdbk-1113-98_reaffirm_2005_040148

 

Click here to make tpub.com your Home Page

Page Title: Beta-Gamma Monitoring
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Alpha Monitoring - doe-hdbk-1113-98_reaffirm_2005_040147
Up
Radiological Safety Trainign for Uranium Facilities
Next
Interference from Radon - doe-hdbk-1113-98_reaffirm_2005_040149


DOE-HDBK-1113-98
Radiological Safety Training for Uranium Facilities
Module 104 Internal Dose Control
ii. Beta-Gamma Monitoring
Proportional counters and GM detectors are well suited for detecting
beta-gamma radiation emitted by radioactive decay products in the
uranium chain. Beta-gamma radiation travels further than alpha
radiation and is easier to detect. For natural, depleted, and lower levels
of enriched uranium, the ability to measure uranium by detecting the
beta-gamma radiation from the uranium and its radioactive decay
products is about five times more sensitive than by alpha monitoring
alone.
Many surfaces that could be contaminated are porous. If the uranium
contamination is in the pores of the material or the surface of the
material is wet, the alpha radiation will be blocked. Under these
circumstances, beta-gamma monitoring is the only means of detecting
the contamination.
iii. Monitoring Techniques
When performing personnel monitoring it is very important to keep the
detector (i.e., the probe) close to the surface being monitored and to
move the detector slowly. If the detector is not held close to the
surface being monitored, the alpha particles may not reach the
detector. If the detector is moved too quickly across the surface, the
electronics in the instrument will not have time to respond to indicate
the amount of radioactive contamination present.
38


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.