Quantcast Requirements Documentation - s3007cn10077

 

Click here to make tpub.com your Home Page

Page Title: Requirements Documentation
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
Criticality Safety Evaluation for Shipment of Radioactive Waste within the Boundaries of the INEL
Up
Guidelines For Preparing Criticality Safety Evaluations at Department of Energy Non-Reactor Nuclear Facilities
Next
Methodology - s3007cn10078


DOE-STD-3007-93
Shipments of radioactive waste in casks for which this evaluation is used as the basis for
criticality safety will be limited to one cask per shipment with no more than 160 FGE Pu239 per
cask. Therefore, criticality safety margins will be maintained for these shipments by controlling
the number of casks per shipment and by controlling the amount (mass) of fissile material per
cask. Compliance with the following DOE-ID and Code of Federal Regulations (CFR)
requirements will be demonstrated.
1.
DOE-ID 5480.5A "For a system to be considered critically safe by mass alone, it
shall not have more than 75 percent of the critical mass assuming the system is in
its most reactive credible state. If over batching is credible, 45 percent of the
critical mass shall be used." (Acceptable keff values must also be # 0.95.)
2.
10 CFR Part 71 Section 71.55(b) "...a package used for the shipment of fissile
material must be so designed and constructed and its contents so limited that it
would be subcritical if water were to leak into the containment system...so that,
under the following conditions, maximum reactivity of fissile material would be
attained:
a.
The most reactive credible configuration consistent with chemical
and physical form of the material;
b.
Moderation by water to the most reactive credible extent; and,
c.
Close reflection by water on all sides."
3.
10 CFR Part 71 Section 71.61 "A package for Fissile Class III shipment must be
so designed and constructed and its contents so limited, and the number of
packages in a Fissile Class III shipment must be so limited, that:
a.
Twice this number of undamaged packages would be subcritical if
stacked together in any arrangement, assuming close reflection on
all sides of the stack by water; and
b.
This number of packages would be subcritical if stacked together in
any arrangement, closely reflected on all sides of the stack by water,
and with optimum interspersed hydrogenous moderation....Each
package must be considered to have been subjected to the tests
specified in 10 CFR 71.73 (Hypothetical Accident Conditions)."
4-8


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

Integrated Publishing, Inc.