Raftul cu initiativa Book Archive

Nuclear

Nuclear criticality safety experiments, calculations, and by Brian L Koponen

By Brian L Koponen

Show description

Read Online or Download Nuclear criticality safety experiments, calculations, and analyses, 1958 to 1982 : compilation of papers from the Transactions of the American Nuclear Society PDF

Best nuclear books

Nuclear Energy: Selected Entries from the Encyclopedia of Sustainability Science and Technology

Nuclear strength offers an authoritative reference on all elements of the nuclear from basic reactor physics calculations to reactor layout, nuclear gas assets, nuclear gasoline cycle, radiation detection and safety, and nuclear energy economics. that includes 19 peer-reviewed entries by way of famous professionals within the box, this ebook offers entire, streamlined insurance of basics, present components of study, and objectives for the longer term.

Return to Armageddon: The United States and the Nuclear Arms Race, 1981–1999

Whilst the chilly struggle ended, the realm set free a collective sigh of reduction because the worry of nuclear disagreement among superpowers seemed to vanish in a single day. As we procedure the hot millennium, in spite of the fact that, the proliferation of nuclear guns to ever extra belligerent nations and factions increases alarming new issues in regards to the chance of nuclear conflict.

Extra resources for Nuclear criticality safety experiments, calculations, and analyses, 1958 to 1982 : compilation of papers from the Transactions of the American Nuclear Society

Example text

The buckling was obtained from the critical size of the assemblies and the extrapolation distance. 3 cm. 87 cm' The delayed-neutron age to thermal was calculated by 3. G. Sullivan using a Monte 'Carlo moments-method calculation. 6 cm'. 0048. 196. The results of the critical experiments a r e given in Table I. . 6 Average Critical Height (cm) Critical Mass (kg of . 30 x IO-' 'J. T. Mihalczo, "Determination of Infinite Medium Multiplication Factor for 2% Uranium-235 Enriched UFI in Paraffin," Trans.

The fuel elements were 5 ft. long. The subcrltlcal lattice was placed on the thermal column of a water boiler reactor which served as the source of neutrons for the assembly. ) of the graphite used was first measured. The thermal-neutron distributions along the vertical and the horizontal axes of this block were determined from the activations of sets of bare and cadmium-covered indium foils. 2 cm. 8 cm. obtained previously' for this block. The material buckling of the lattice was determined from the thermal-neutron flux distribution measured parallel to the vertical axis of the assembly.

J . Lynn (ORNL). A series of neutron multiplication measurements with arrays of 1 by 8 by 10 in. 4% U-235 enriched uranlum metal have been made to provide data from which safety criteria for the storage of these fissile units can be established. 9 kg of U-235. A maximum of 125 units was assembled. The arrays studied were cubic lattices of the units and were usually paralleleplpal in shape. -thick Plexiglas reflector. 06. 023 would require 250 i 30 units. In lattices In which the fissile units a r e separated by 1 in.

Download PDF sample

Rated 4.99 of 5 – based on 23 votes