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Author : Earl K. Hyde
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (91 download)
Download or read book Low Mass Francium and Emanation Isotopes of High Alpha Stability written by Earl K. Hyde and published by . This book was released on 1950 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Mass Francium and Emanation Isotopes of High AlphaStability written by and published by . This book was released on 1949 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Isotopes of francium with 126 or fewer neutrons have been looked for in bombardments of Th232 with 350 Mev protons from the 184-inch cyclotron. Fr212 with an apparent half-life of 19.3 minutes for branching decay by alpha emission (44%) to At2°8 and by orbital electron capture (56%) to Em212 has been found. Em212 is shown to be a 23-minute alpha-emitter. At2°8 decays primarily (99.5%) by orbital electron capture to Po2°8, but shows 0.5% alpha-branching. The francium and emanation isotopes have alpha half-lives completely out of line with the predictions based on the previously known isotopes of these elements. Their high alpha stability is believed to be due to a closed shell of 126 neutrons in analogy to the behavior of elements 83-85. The non-existence of long-lived francium in nature is discussed in the terms of this and other recent work on francium isotopes.
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ISBN 13 :
Total Pages : 930 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1950 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : E. E. Hyde
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)
Download or read book Preparation of a New Isotope of Francium-Fr222 written by E. E. Hyde and published by . This book was released on 1950 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert Ghiorso
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ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.3/5 (91 download)
Download or read book New Low Mass Isotopes of Emanation (element 86) written by Albert Ghiorso and published by . This book was released on 1949 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the spallation products obtained from the 350-Mev proton bombardment of Th232 they have identified two gaseous alpha-emitters which apparently do not decay into any presently known alpha-decay chains. The half-lives observed for the decay of the alpha-activities are 23 minutes and 2.1 hours. These half-lives may be principally determined by an unknown amount of orbital electron capture. At least one alpha-emitting daughter (about 4 hours half-life) has been observed to grow from a gaseous parent, but it has not been determined whether it arises from alpha-decay or electron-capture. Since these gaseous atoms emit alpha-particles it is assumed that they are isotopes of element 86 (emanation or radon) rather than a lighter rare gas. if they were heavy isotopes such as Em221 or Em223, both unknown, they would decay into known alpha-decay series, the neptunium and actinium series, respectively, and so would grow known short lived alpha-emitters which would have been detected. It thus appears reasonable that they must be lighter than the known emanation isotopes.
Author : Glenn Theodore Seaborg
Publisher :
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.F/5 ( download)
Download or read book Journal of Glenn T. Seaborg, 1946-1958 written by Glenn Theodore Seaborg and published by . This book was released on 1990 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Glenn Theodore Seaborg
Publisher :
ISBN 13 :
Total Pages : 454 pages
Book Rating : 4.X/5 (2 download)
Download or read book Journal of Glenn T. Seaborg, 1946-1958: Jan. 1, 1950-Dec. 31, 1950 written by Glenn Theodore Seaborg and published by . This book was released on 1990 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 982 pages
Book Rating : 4.F/5 ( download)
Download or read book Nuclear Data written by and published by . This book was released on 1998 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.F/5 ( download)
Download or read book Technical Information Pilot written by and published by . This book was released on 1950 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council (U.S.). Committee on the Measurement of Geologic Time
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ISBN 13 :
Total Pages : 516 pages
Book Rating : 4.3/5 (243 download)
Download or read book Report of the Committee on the Measurement of Geological Time by Atomic Disintegration written by National Research Council (U.S.). Committee on the Measurement of Geologic Time and published by . This book was released on 1949 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 1596 pages
Book Rating : 4.F/5 ( download)
Download or read book United States Government Publications Monthly Catalog written by and published by . This book was released on 1950 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council (U.S.). Committee on the Measurement of Geologic Time
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ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.X/5 (4 download)
Download or read book Report of the Committee on the Measurement of Geologic Time written by National Research Council (U.S.). Committee on the Measurement of Geologic Time and published by . This book was released on 1950 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.3/5 (91 download)
Download or read book Summary of the Research Progress Meetings of January 8, 22, 29, and February 5, 1953 written by and published by . This book was released on 1949-12-15 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
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ISBN 13 :
Total Pages : 1774 pages
Book Rating : 4.E/5 ( download)
Download or read book United States Government Publications Monthly Catalog written by United States. Superintendent of Documents and published by . This book was released on 1950 with total page 1774 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
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ISBN 13 :
Total Pages : 1484 pages
Book Rating : 4.X/5 (2 download)
Download or read book Science Abstracts written by and published by . This book was released on 1950 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council (U.S.) Committee on the Measurement of Geologic Time
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ISBN 13 :
Total Pages : 326 pages
Book Rating : 4.F/5 ( download)
Download or read book Report written by National Research Council (U.S.) Committee on the Measurement of Geologic Time and published by . This book was released on 1952 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United Nations. Department of Political and Security Council Affairs. Atomic Energy Commission Group
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ISBN 13 :
Total Pages : 678 pages
Book Rating : 4.:/5 (1 download)
Download or read book An International Bibliography on Atomic Energy: Scientific aspects written by United Nations. Department of Political and Security Council Affairs. Atomic Energy Commission Group and published by . This book was released on 1952 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
