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Book Transuranium Processing Plant Report of Production Status and Plans

Download or read book Transuranium Processing Plant Report of Production Status and Plans written by Oak Ridge National Laboratory. Chemical Technology Division and published by . This book was released on 1975-12-31 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transuranium Processing Plant Report of Production Status and Plans

Download or read book Transuranium Processing Plant Report of Production Status and Plans written by Oak Ridge National Laboratory. Chemical Technology Division and published by . This book was released on 1976-06-30 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Nuclear Science Abstracts

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1977

Download or read book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period January 1, 1977, through June 30, 1977, the following amounts of transuranium elements were recovered from 12 irradiated HFIR targets: 0.1g 243Am, 21g 244Cm, 29.5 mg 249Bk, 288 mg 252Cf, 1.48 mg 253Es, and 0.7 pg 257Fm. One batch of high-purity 248Cm (approximately 50 mg) was separated from 252Cf. Twenty-three shipments were made from TRU during the period; recipients and the amounts of nuclides are tabulated. Five HFIR targets, each containing 8 to 9 g of curium, were fabricated. During the next 18 months, we expect to obtain totals of 92 mg of 249Bk, 910 mg of 252Cf, 3.8 mg of 253Es (in a mixture of isotopes), 615 .mu.g of high-purity 253Es, and 1.6 pg of 257Fm; we also expect to make available 250 mg of high-purity 248Cm. No process or equipment changes were made during this report period. Five neutron sources were fabricated during this report period, bringing the total fabricated to date to 97. Two sources that had previously been returned to TRU were reassigned. Special projects included the following: (1) the enrichment of the 244Pu concentration in 100 mg of plutonium by irradiation to burn out the lighter isotopes, (2) the separation of 245 pg of 254Cf from 39-hr /sup 254m/Es that was produced by irradiation of 5 .mu.g of 253Es, and (3) an experimental separation of cerium from the other rare-earth elements in a TRU process waste solution. The values that we are currently using for transuranium element decay data and for cross-section data in planning irradiation-processing cycles, calculating production forecasts, and assaying products are tabulated in the Appendix.

Book Accessions of Unlimited Distribution Reports

Download or read book Accessions of Unlimited Distribution Reports written by and published by . This book was released on 1975-01-03 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1975

Download or read book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1975 written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period January 1, 1975, through June 30, 1975, the following amounts of transuranium elements were recovered from 22 irradiated HFIR targets: 2g 243Am, 59 g 244Cm, 51 mg 249Bk, 465 mg 252Cf, 2.5 mg 253Es, and 1.4 pg 257Fm. In addition, 45 mg of high-purity 248Cm was operated from 252Cf which had been recovered and purified during earlier periods, and 56 mg of a lower-quality 248Cm was separated from californium purification rework solutions. Five HFIR targets, each containing approximately 9 g of actinides (predominantly curium), were fabricated. A new long-term projection showed that 252Cf production in the TRU-HFIR complex could increase to as much as 2.5 g/year. During the next 18 months, we expect to recover totals of 46 mg of 249Bk, 520 mg of 252Cf, 2.0 mg of 253Es (in a mixture of isotopes), 220 .mu.g of high-purity 253Es, and 1.6 pg of 257Fm. We also expect to obtain 125 mg of high-purity 248Cm from purified californium now in storage. There are no plans to process any of the remaining SRP Pu-Al tubes or to irradiate any plutonium targets in the HFIR; thus, we do not expect to recover any 244Pu. No changes were made in the chemical processing flowsheets normally used at TRU. Two neutron sources were fabricated, bringing the total fabricated to 77. In special projects, we (1) produced about 1 mg of 25°Cf by irradiation of 249Bk in HFIR rabbits, and (2) processed some irradiated 248Cm samples and obtained yield and isotopic composition data for use in determining the capture cross section of 249Cm in the HFIR. The values that are currently being used for transuranium element decay data and for cross-section data in planning irradiation-processing cycles, calculating production forecasts, and assaying products are tabulated in the Appendix.

Book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1976

Download or read book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1976 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period January 1, 1976, through June 30, 1976, the following amounts of transuranium elements were recovered from ten irradiated HFIR targets: 2 g 243Am, 50 g 244Cm, 29 mg 249Bk, 277 mg 252Cf, 1.7 mg 253Es, and 0.5 pg 257Fm. About 50 mg of high-purity 248Cm was purified chemically for shipment, and another 75 mg of 248Cm was separated from 252Cf. Nineteen HFIR targets, each containing approximately 9 g of curium, were fabricated. There have been no changes during this report period in the chemical processing flowsheets normally used at TRU. Five neutron sources were fabricated, bringing the total fabricated to 84. Six sources that were used previously in various projects have been returned to TRU and are available for reassignment. Special projects included (1) the continued study of 25°Cm production by irradiation of 248Cm; (2) the production of 0.54 mg of 25°Cf by irradiation of 249Bk; (3) the separation of approximately 200 pg of 254Cf from 39-hr /sup 254m/Es that was produced by irradiation of 5 .mu.g of 253Es; and (4) the determination of process steps needed to obtain rare-earth fission products in an oxide form from LiCl-based anion exchange raffinate solution.

Book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1973

Download or read book Transuranium Processing Plant Semiannual Report of Production Status and Plans for Period Ending June 30 1973 written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the eleventh report in a series that is being issued semiannually to inform the heavy-element community of the status and future production plans of the Transuranium Elenient Production Program at ORNL. During the period January 1, 1973, through June 30, 1973, transuranium elements from 221/ 2 irradiated HFIR targets and from 3 Pu-Al tubes that had been irradiated at the Savannah River Plant (SRP) were recovered as part of the Californium-I program to evaluate the commercial market for 252Cf and to establish an inventory of material for sale. We purified 187 g of Californium-I curium and converted it to oxide for use in HFIR targets. Also, 1.8 mu g of 254Es, 3.24 g of 264/sup Pu/, and 12 mg of 248Cm, all of high isotopic purity, were recovered from materials previously processed. Sixty-four shipments were made from TRU during the period; recipients and the amounts of nuclides are listed in Table 2.2 on pp. 5-7. Twenty HFIR tangets, each containing 7 to 9 g of actinides (predominantly curium), were fabricated. Duning the next 18 months, we expect to recover totals of 49 mg of 249Bk, 575 mg of 252Cf, 2.3 mg of 253Es (in a mixt ure of isotopes), 255 mu g of isotopically pure 253Es, and 1.5 pg of /sup 257/Fm. Also, we expect to obtain 50 mg of high-purity 246Cm from purified californium now in storage. Currently, we do not plan to process any of the remaining SRP Pu-Al tubes or to irradiate any plutonium targets in the HFIR; thus, we do not expect to recover any 241Pu. Work was done during this period to improve one of our processing steps. A new batch solvent extraction process, using 60% TBP as extractant, was tested as an alternative to the Cleanex process. Three neutron sources were fabricated, bringing the total fabricated to 63; 5 sources that had been used in various projects were returned to TRU for reassignment or reprocessing. Tests were made to determine the containment classification for Zircaloy-2 encapsulated sources, and studies relative to neutron counter dead time were made to improve neutron source calibration. (auth).

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: