Sefor Core I Test Results to 20 Mw.

SOUTHWEST EXPERIMENTAL FAST OXIDE REACTOR DEVELOPMENT PROGRAM. Thirty- First and Final Quarterly Report, November 1971--January 1972.

“…,9-1 9-1 9-1 9-1 9-1 9-1 9-1 9-1 9-1 9-2 9-2 9-2 9-2 9-3 9-3 9-3 9,-:4 9-4 9-4 9-5 9-6 9-6 9-6 9-6 9-6 9-6 R-1 C-1 D-1 4-5 5-1 5-2 5-3 5-4 6-1 6-2 6-3 6-4 6-5 6-6 6-7 6-8 6-9 6-10 6-11 6-12 6-13 6-14 6-15 6-16 6-17 6-18 6-19 6-20 6-21 6-22 6-23 6-24 6-25 6-26 6-27 6-28 6-29 6-30 6-31 6-32 6-33 6-34 6-35 6-36 6-37 6-38 6-39 6-40 6-41 Super-Prompt Slug Calibration With Reflector 3 5-5 5-3 Averaged Slug Worth versus FRED Worth Measurements for Both Fine Reflectors . 5-7 5-5 Comparison of Averaged FRED Worth versus Heat Balance Low Power (0.06 MW) Critical Points (Core 1-L) (8/12/71 -8/14/71) 5-10 5-8 Low Power (0.06 MW) Critical Points (Core 1-M) (8/16/71-8/30/71) 5-10 5-9 Power Reactivity Data 5-11 Calibration of Reflector 3 Assembly 11-C at 550°F 6-3 6-2 C<1l ibr<1tion of Reflector 8 Ass em bl y 11-C at 550° F 6-3 Calibration of Reflector 3 Assembly 11-C at 750°F 6-4 6-4 Calibration of Worth of Reflector 8 in Assembly 11-C. 6-5 6-6 Worth of Reflector 3 in Assembly 11-C. 6-5 6-7 Calibration of Reflector 3 Assembly 11-E at 750°F 6-8 [6][7][8] Calibration of Calibration of Reflector 3 Assembly 11-F at 750°F [6][7][8][9] 6-10 Calibration of Reflector 8 Assembly 11-F at 750°F 6-9 6-1. 1 Core II Doppler Calculations .…”

“…1 Core II Doppler Calculations . 6-10 6-12 Expansion Reactivity Coefficients for SEFOR 6-11 6-13 Core II Uniform Temperature Coefficient of Reactivity at Zero Power 6-11 [6][7][8][9][10][11][12][13][14] Core II Zero Power Temperature Reactivity Measurements 6-15 [6][7][8][9][10][11][12][13][14][15] Flow Reactivity Measurements 6-22 [6][7][8][9][10][11][12][13][14][15][16] Pressure Reactivity Measurements 6-23 [6][7][8][9][10][11][12][13][14][15][16][17] Core II Oscillator Poison Rod Calibration. 6-25 6-18 Frequencies of Oscillation .…”

“…The data are plotted in Figure 6-12 where they are compared with similar measurements in Core 1. 6 The differential worth of the rod at a location 4 inches is 2.63¢/in. This value is compared below with a corresponding valuP.…”

SODIUM-COOLED REACTORS FAST CERAMIC REACTOR DEVELOPMENT PROGRAM. Thirty- Ninth Quarterly Report, May--July 1971.

“…Computations aimed at defining a Doppler coefficient benchmark problem using static measurements from• SEFOR 27 are under. way.…”