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Graphite expansion committee meeting of January 10, 1947

Description: The thirteenth meeting of the Graphite Expansion Committee was held on January 10, 1947. A summary of meeting topics follow. The horizontal bowing of Tube 4494-D in the top corner of the pile is considerably greater than the bowing which can be attributed to graphite expansion at this elevation in the pile, indicating that the top layers of graphite are being dragged outward by expansion of the underlying layers. Such a phenomenon could shear the vertical thimbles at a point just below the ther… more
Date: January 23, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Graphite expansion committee meeting of January 7, 1947

Description: The fourteenth meeting of the Graphite Expansion Committee was held on February 7, 1947. Laboratory studies indicate that either the graphite thermocouples are reading low or that annealing effects at elevated temperatures within the pile are much greater than those encountered In the laboratory. Current difficulties with operation of some of the horizontal and vertical control rods seem to be attributable to graphite expansion, though no complete understanding of the phenomena has been obtaine… more
Date: February 19, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reactivity of new piles

Description: This memorandum lists the effect upon reactivity which would result from certain changes of material or design which might be considered for the new piles. Some of the information, published previously, is report here for convenience.
Date: June 18, 1947
Creator: Wende, C. W. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Determination of reactivity coefficients and rod calibration of D Pile. Interim report on Production Test No. 105-97-P

Description: The test of March 7, 1947 was planned as a check on power coefficient values; however, an analysis of reactivity data gave evidence of a considerable flattening of ``A`` rod in the region between 0--75 inches out. A second test of longer duration was therefore made on April 1, 1947 in order to obtain a check calibration of this portion of the control rod. The results of this test verified the flattening of this portion of ``A`` rod. The redetermined power coefficients based on new rod calibrati… more
Date: April 25, 1947
Creator: Kruesi, F. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interim report on production test No. 105-97-1: Determination of reactivity coefficients and Rod Calibrations of F Pile

Description: This report describes a test performed on April 2, 1947 to determine the reactivity power coefficients and the graphite relaxation period of the F Pile in accordance with the procedure described by this Production Test.
Date: April 14, 1947
Creator: Staebler, U. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report: Engineering, August 1947

Description: There were seven charges of metal inspected during the month for corrosion and blistering studies. There were no unusual cases of blistering noted and the corrosion rates were normal for this time of year. Borescopic examination of the graphite packing around the ``B`` Hole in the F Pile revealed that the graphite is no more severely cracked than in the D Pile when it was inspected about a year ago. Examination of the graphite at the downstream and of Tube 1385-D did not indicate that any damag… more
Date: September 22, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100 Areas Technical Activities Report - Engineering, April 1947

Description: This is the first of a series of monthly reports covering details of the work of the Engineering Group of the Pile Technology Section of the Technical Department. The monthly Slug Inspection Report is being discontinued as a separate document and is being incorporated in this group report. Included is work on corrosion and blistering; graphite expansion; and irradiation studies.
Date: May 21, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report - physics, December 1946

Description: This report summarizes physics experiments carried out in different parts of the 100 area at Hanford during December, 1946. This included work on the D pile, F pile, and experiments aimed at studying the irradiation properties of graphite and metal samples exposed to different radiation environments. Pile tests included reactivity tests, calibrations of control rods, and power coefficient tests.
Date: January 7, 1947
Creator: Montgomery, E. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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100 Areas technical activities report -- Engineering, July, 1947

Description: This monthly report covers activities for the production reactors. The 100 Area activities include: corrosion and blistering studies of slugs and flanges; study of the process tube leak at 105-D; graphite expansion studies which include galling of process tubes and stresses in biological shields; and irradiation studies.
Date: August 29, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Graphite expansion committee meeting of June 6, 1947

Description: The gas thermometer in the F Pile has been overhauled and re-calibrated. The readings are still in agreement with the readings from the graphite thermocouples. A similar overhaul of the gas thermometer in the D Pile will be made during June. The progress of further outward bowing of Tube 2496-D can not be followed satisfactorily even though readings are obtained from both inlet and outlet ends of the tube. Preliminary results obtained from the one-tube mock-up suggest the possibility that the g… more
Date: June 13, 1947
Creator: Woods, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interim report No. 6 production test No. 106-52-P, graphite expansion: Gun barrel clearance

Description: The face to face expansion of the graphite packing of the pile reduces the gun barrel sum-clearance and if continued will strain the aluminum tubes with ultimate rupture of the Van Stone joints. The graphite expansion may be determined while an aluminum process tube is out of the unit. The distance from the graphite at the inner end of one gun barrel to the corresponding point at the opposite face is measured and compared to a similar measurement that was made during construction of the pile. T… more
Date: January 21, 1947
Creator: Lewis, W. R. & Rohrbacher, R. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hanford Engineer Works technical progress letter number 152: May 25 through May 31, 1947

Description: This report gives weekly progress in pile technology. An exposure of over 96 hours was made with the slug radiographing apparatus from May 22 to May 26. The three pieces subjected to the exposure included one of the special pieces designed for installation of a thermocouple. The thermocouple well in the special pieces showed up satisfactorily and for the first time it was possible to detect spots which could be due to small voids. Crushing and breaking strength measurements made on graphite pie… more
Date: June 5, 1947
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Processing of Special Metal for Hanford

Description: The object of this project is to reduce the impurities and raise the density of rejected slugs and briquetted turnings from these slugs by recasting the material. Summary and conclusions are (1) slugs and briquettes made from turnings produced when these slugs were machined can be recast with great improvement in quality; (2) casting this material is quite hard on graphite crucibles, but a long-range program might point the way to better graphite usage; (3) this metal run alone gives fair yield… more
Date: March 10, 1947
Creator: Oppold, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Process tubes at B Pile

Description: This memorandum discusses the roflanging of the corroded rear Van Stone flanges at the B Pile after cutting 3/8-inch off the rear gun barrel which should place the B Pile in a condition as good as, or better than that of the D or F Piles.
Date: July 28, 1947
Creator: Lewis, W. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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