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Physics of gas cooled reactors

Description: From meeting on new developments in reactor physics and shieiding calculations; Lake Kiamesha, New York, USA (12 Sep The temperature coefficient of the HTOR is composed of a strong negative Doppler coefficient and a positive moderator coefficient, the net effect being about -10 x 10/sup -5// deg C at operating temperature. the positive moderator coefficient is a result of the absence of significant density coefficients and the nuclear characteristics of U- 233. In addition, selected iission products, principally Xe-135, contribute positive components to the temperature coefficient. Current estimates of the value of the temperature coefficient in the HTGR are presented along with recent experimental data pertinent to the subject. (11 references) (auth)
Date: July 15, 1972
Creator: Dahlberg, R.C.
Partner: UNT Libraries Government Documents Department

Spent fuel shipping, reprocessing, and recycle fabrication in the HTGR fuel cycle

Description: From joint power generation conference; New Orleans, Louasiana, USA (16 Sep 1973). The High Temperature Gas Cooled Reactor (HTGR) fuel recycle operation is described. The description includes the HTGR spent fuel shipping system and the proposed method of reprocessing the spent fuel to recover the bred /sup 233/U and /sup 235/U. The process for refabricating the recovered fuel into recycle fuel is also discussed. (auth)
Date: December 15, 1972
Creator: Brooks, L.H.; Davis, C.R.; Peterman, D.D. & Spaeth, M.E.
Partner: UNT Libraries Government Documents Department

Final report on graphite irradiation test OG-2

Description: Results are presented of dimensional, thermal expansivity, thermal conductivity, Young's modulus, and tensile strength measurements on specimens of nuclear graphites irradiated in capsule OG-2. About half the irradiation space was allocated to H-451 near-isotropic petroleum-coke-based graphite or its subsized prototype grade H-429. Most of these specimens had been previously irradiated. Virgin specimens of another near-isotropic graphite, grade TS-1240, were irradiated. Some previously irradiated specimens of needle-coke-based H-327 graphite and pitch-coke-based P$sub 3$JHAN were also included.
Date: December 15, 1975
Creator: Price, R.J. & Beavan, L.A.
Partner: UNT Libraries Government Documents Department