For HEU, the mass of U-235 is listed along with the enrichment. When only an aggregate amount of HEU with various enrichments is known, the total weight of the HEU inventory is listed. For some sites only core loadings of research reactors are known, rather than the total amount of fissile material. This is indicated in the table. The table includes stocks of fresh fuel or fuel currently loaded in reactors. Spent fuel is not included.
 

Location	Facility	Material
		Plutonium			HEU
		kg	grade	form	kg  U-235	enrich- ment	form
Ulugbek	Institute of Nuclear Physics	0	NA	NA	5.5 in core;[1]  small amounts of fresh fuel[2]	36%	fuel assem- blies
Tashkent	Photon	0 [3]	NA	NA	NA	NA	NA

Sources:
[1] International Atomic Energy Agency, IAEA Research Reactor Database, http://www.iaea.org/worldatom/rrdb.
[2] NISNP discussions with Uzbekistani nuclear physicist, 2 February 1999, UZB990202.
[3] NISNP Interview with Uzbekistani nuclear physicist, June 2001, UZB010600.

KEY: 
NA not applicable

Page last updated 28 June 2001
For more recent updates, see the Institute of Nuclear Physics and Uzbekistan: General Developments files.

Comments or questions? Contact Kenley Butler at MIIS CNS: Kenley.Butler@miis.edu