Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study

Thumbnail image of item number 1 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 2 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 3 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 4 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Showing 1-4 of 81 pages in this document.

PDF Version Also Available for Download.

Description

Fission prcduct cross sections were measured radiochemically and mass- spectrometrically for gold bombsrded with 112-Mev C/sup 12/ ions. Cross sections for 43 nuclides were measured for elements from nickel to barium. Thirty-six yields are either primary fission product yields (independent yields) or were corrected (with less than 25% correction) so as to represent independent yields. The independent yields were empirically systematized and a yield-mass curve was constructed. The yield-mass curve is compared with the yield-mass curves obtained from the fission of Bi with 22 and 190-Mev deuterons. The yield systematics indicate that the sum of the mass numbers of complementary … continued below

Physical Description

76 pages

Creation Information

Blann, H. M. May 23, 1960.

Context

This thesis or dissertation is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 18 times. More information about this document can be viewed below.

Who

People and organizations associated with either the creation of this thesis or dissertation or its content.

Author

Sponsor

Publisher

  • Lawrence Radiation Laboratory
    Publisher Info: California Univ., Berkeley. Lawrence Radiation Lab. (United States)
    Place of Publication: Berkeley, California

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

About | Browse this Partner

Contact Us

Corrections Questions

What

Descriptive information to help identify this thesis or dissertation. Follow the links below to find similar items on the Digital Library.

Description

Fission prcduct cross sections were measured radiochemically and mass- spectrometrically for gold bombsrded with 112-Mev C/sup 12/ ions. Cross sections for 43 nuclides were measured for elements from nickel to barium. Thirty-six yields are either primary fission product yields (independent yields) or were corrected (with less than 25% correction) so as to represent independent yields. The independent yields were empirically systematized and a yield-mass curve was constructed. The yield-mass curve is compared with the yield-mass curves obtained from the fission of Bi with 22 and 190-Mev deuterons. The yield systematics indicate that the sum of the mass numbers of complementary fission products is 13 plus or minus 1 amu less tban that of the compound nucleus, and the sum of the charges of complemertary fission products is two units less than that of the compound nucleus. It is postulated that 9 plus or minus 1 neutrons and an alpha particle must have been emitted. Evidence is presented that at least three and possibly more of the neutrons are emitted prior to fission. The most probable charge of the fission products as a function of mass number was determined empirically. It is shown that from mass number 80 to mass number 111 the Equal Charge Displacement (ECD) and Constant Charge Ratio (CCR) rules predict the empirical values equally well. For masses less than 80 and greater than 120 the ECD and CCR rules are shown to be equally poor, as the empirical distribution is between them. The Minimum Potential Energy theory of charge distribution proposed by Present and modified and interpreted by Swiatecki is shown to predict the empirical points over the entire mass region studied (A = 66 to A = 135) within experimental error ( plus or minus 0.2 charge unlt). (auth)

Physical Description

76 pages

Source

  • Other Information: Orig. Receipt Date: 31-DEC-60

Language

Item Type

Identifier

Unique identifying numbers for this document in the Digital Library or other systems.

Collections

This document is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

About | Browse this Collection

What responsibilities do I have when using this thesis or dissertation?

Digital Files

When

Dates and time periods associated with this thesis or dissertation.

Creation Date

  • May 23, 1960

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

Description Last Updated

  • March 5, 2021, 2:33 a.m.

Usage Statistics

When was this document last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 18
More Statistics

Interact With This Thesis Or Dissertation

Here are some suggestions for what to do next.

Start Reading

Thumbnail image of item number 1 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 2 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 3 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.
Thumbnail image of item number 4 in: 'Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study'.

PDF Version Also Available for Download.

Citations, Rights, Re-Use

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Links for Robots

Helpful links in machine-readable formats.

Archival Resource Key (ARK)

International Image Interoperability Framework (IIIF)

Metadata Formats

Images

URLs

Stats

Blann, H. M. Fission of Gold With 112-Mev C{sup 12} Ions: A Yield-Mass and Charge- Distribution Study, thesis or dissertation, May 23, 1960; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc872689/: accessed May 26, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

Back to Top of Screen