Quantcast Neutron External Dose - hdbk1113cn10073

 

Click here to make tpub.com your Home Page

Page Title: Neutron External Dose
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
Gamma and X-Ray External Dose - hdbk1113cn10072
Up
Radiological Safety Training for Uranium Facilities - index
Next
External Dose Measurements cont'd - hdbk1113cn10074


DOE-HDBK-1113-98
Module 103 External Dose Control
Lesson Plan
Instructor's Notes
hour. This problem can be controlled by flushing empty
cylinders to remove residual material.
E.
Neutron External Dose
Show OT-28
As uranium is processed in the fuel cycle, it is often
chemically bonded to fluorine to create compounds such as
UF4 and UF6. When uranium atoms in these compounds
decay, they emit alpha particles that are sometimes captured
by the neighboring fluorine atoms. The resulting atom is
unstable and may emit a neutron to gain back its stability.
The neutrons emitted can result in neutron radiation fields
between 0.5 and 4 mrem/h.
The probability of spontaneous fission is small; therefore
exposure is not expected. However, if fission does occur,
such as in a reactor or from experiments, the neutron
radiation is typically contained. Neutron radiation that is
not contained is usually the result of a criticality accident,
which generates potentially fatal doses of gamma radiation.
F.
External Dose Measurements
The radiation from uranium that affects external dose
includes beta, gamma, X-ray and neutron irradiation. An
effective external exposure control program for uranium
requires a variety of radiation detection instruments that are
responsive to these forms of r adiation. Ra diation sur veys
should be performed on a routine basis and during events,
tasks, procedures, or situations that are likely to cause
36


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

Integrated Publishing, Inc.