Retention of neptunium in uranyl alteration phases formed during spent fuel corrosion
Conference
·
OSTI ID:651866
Uranyl oxide hydrate phases are known to form during contact of oxide spent nuclear fuel with water under oxidizing conditions; however, less is known about the fate of fission and neutron capture products during this alteration. We describe, for the first time, evidence that neptunium can become incorporated into the uranyl secondary phase, dehydrated schoepite (UO{sub 3}.8H{sub 2}O). Based on the long term durability of natural schoepite, the retention of neptunium in this alteration phase may be significant during spent fuel corrosion in an unsaturated geologic repository.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 651866
- Report Number(s):
- UCRL-JC--128499; CONF-970902--; ON: DE98054677
- Country of Publication:
- United States
- Language:
- English
Similar Records
Retention of neptunium in uranyl alteration phases formed during spent fuel corrosion
Incorporation of radionuclides in the alteration phases of spent nuclear fuel.
The transformation of uranyl oxide hydrates: The effect of dehydration on synthetic metaschoepite and its alteration to becquerelite
Conference
·
Wed Oct 01 00:00:00 EDT 1997
·
OSTI ID:561225
Incorporation of radionuclides in the alteration phases of spent nuclear fuel.
Conference
·
Wed Aug 25 00:00:00 EDT 1999
·
OSTI ID:11950
The transformation of uranyl oxide hydrates: The effect of dehydration on synthetic metaschoepite and its alteration to becquerelite
Journal Article
·
Fri Oct 15 00:00:00 EDT 1999
· Environmental Science and Technology
·
OSTI ID:20000729