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Advanced SR-90 Space Power Supply Study

Description: This report addresses details of the Advanced SR-90 Space Power Supply Study
Date: January 1, 1964
Creator: U.S. Atomic Energy Commission
Partner: UNT Libraries Government Documents Department

Analysis and Design Significance of A-11 Flow-Induced Vibration Test, Phases I and III

Description: Comparisons of the experimental data on seal pressure distributions obtained from the A-11 Flow Induced Vibration Test, Phases I and III, with analytical results including porous flow through the unimpregnated inner reflector cylinder for the same operating conditions show generally very good agreement. The principal deviations between analysis and experiment occurs when high pressure ratios exist across the last seal. Additional investigation, both in the relationship used in the analytical model and in the experimental area, are required to determine the cause of the deviation found between analysis and experiment when the pressure ratio across the last seal is near critical. As a result of this comparison, it appears that the analytical methods and assumtions made in predicting unheated seal pressure distributions are resonable, and may be used with confidence in the test prediction of the NRX-A1 cold flow test.
Date: January 1, 1964
Partner: UNT Libraries Government Documents Department

Analysis and Design Significance of Nozzle Interface Seal Leakage Test Results

Description: The interface seal between the inner reflector cylinder and the nozzle flange prevents coolant flow from bypassing the reflector system and core and flowing directly from the reflector inlet plenum to the core exit.
Date: January 1, 1964
Creator: Miller, A. I.
Partner: UNT Libraries Government Documents Department

Brayton Cycle Study

Description: The purpose of the study was to provide a comparison of the characteristics of a space power system operating on the Brayton cycle with either neon or argon.
Date: January 1, 1964
Creator: Semple, E.L. & Simpson, J.D.
Partner: UNT Libraries Government Documents Department

CALCULATION OF THE SHOCK WAVE FROM AN UNDERGROUND NUCLEAR EXPLOSION IN GRANITE

Description: The capability of calculating the close-in effects of the shock wave from an underground nuclear explosion has been demonstrated. Agreement was obtained between calculation and measurements using a spherically symmetric, hydrodynamic, elastic-plastic code called SCC for the Hardhat event, a 5-kiloton nuclear detonation in granite. This capability is dependent upon having a more or less complete description of the elastic and dynamic properties of the materials involved. When this information is available, agreement within the limits of uncertainty of the measurements can be calculated for peak pressures, peak particle velocities, shock wave time of arrival, and pressure pulse shapes. (auth)
Date: January 1, 1964
Creator: Butkovich, T. R.
Partner: UNT Libraries Government Documents Department

Comparison of Analytical and Experimental Flow Induced Core Vibrations

Description: Comparison of analytical and experimental flow induced core vibrations has been made for all applicable tests performed to date. These include the KIWI B-4A and B-4B reactors, the KIWI PIE tests and the A-11 component tests. It can be concluded that the analog and experimental results are in good agreement. Similar calculations on the NRX-A reactor design indicate that vibrations will not occur.
Date: January 1, 1964
Creator: Pierce, B. L.
Partner: UNT Libraries Government Documents Department

COMPLEX SINGLE-NUCLEON STRIPPING AND PICKUP REACTIONS (/cap alpha/,t), (d,He$sup 3$), ETC.

Description: The use of the stripping reactions (sup 3/He,d), ( alpha ,t) and ( alpha ,/sup 3/He) and the inverse picknp reactions for level structure studies is considered, particularly the analysis of these reactions. Some plane-wave and distorted-wave analyses, mainly for the (d,/sup 3/He) and (/sup 3/He,d) reactions, are reviewed. (D.C.W.)
Date: January 1, 1964
Creator: Blair, A.G.
Partner: UNT Libraries Government Documents Department