Click here to make tpub.com your Home Page

Page Title: Table 2.8. Potential Hazards or Damage to Materials from Exposure to Radiation
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
   
   

 



DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
Table 2.8. Potential Hazards or Damage to Materials from Exposure to Radiation
Radiation-Induced Reaction
Potential Hazard or Damage Problem
Radiolysis of oxygen-contaminated glovebox
Production of ozone-damage to elastomers: gloves, seals,
atmospheres
etc.
Gaseous PuF6
Deposition of solid PuF4 on equipment
PuO2 exposed to hydrocarbons or humid
Production of hydrogen gas-pressure buildup in nonvented
environments
containers.
Damaged resin can react violently with HNO3 or other
Ion exchange resins
oxidizers. Also may result in hydrogen gas-pressure
buildup.
CCl4 saturated with H2O
Production of Cl2. C2Cl6 HCl, and phosgene.
Polyethylene
Disintegrates with production of H2.
Polyvinylchloride (PVC) plastics
Disintegrates with production of HCl-corrosion.
Tri-n-butylphosphate
Production of hydrogen and oxygen-pressure buildup in
nonvented containers.
Aqueous plutonium solutions
Production of polymeric plutonium hydroxide (plutonium
polymer), which plates out on vessel surfaces and piping,
producing swelling, cracking, loss of ductility.
Low-acidity plutonium solutions
Increase in leachability.
It would be futile and inappropriate to list, let alone discuss, all the possible radiolytic
reactions affecting plutonium-handling. However, it is important to recognize the
potential for and anticipate the consequences of these reactions. The following sections
cover a broad range of the types of radiation-induced damage common to plutonium-
handling.
2.5.2.1 Hydrogen Production
The G-value for the production of H2 by the alpha radiolysis of pure water is
1.90.1 molecules of hydrogen per 100 eV (Prevost-Brnas et al., 1952).
Cleveland (1970) calculates that the energy released in 0.001M (0.24 g/L) of
plutonium solution is on the order of 2 x 1014 eV per minute. Thus, the hydrogen
evolution would be approximately 3.8 x 1015 molecules per liter per day for a 1M
solution, or about 73 cm3 of hydrogen per year.
The G-values for H2 in solids irradiated by gamma rays are lower: 0.1 for ice
(Johnson, 1970) and 0.01 for the hydrates of a large number of sulfates (Huang
2-22


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

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business