Download or read book Beta delayed Proton Emission in Neutron deficient Lanthanide Isotopes written by Phillip Alan Wilmarth and published by . This book was released on 1988 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta delayed Proton Emission in Neutron deficient Lanthanide Isotopes written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Forty-two .beta.-delayed proton precursors with 56less than or equal toZless than or equal to71 and 63less than or equal toNless than or equal to83 were produced in heavy-ion reactions at the Lawrence Berkeley Laboratory SuperHILAC and their radioactive decay properties studied at the on-line mass separation facility OASIS. Twenty-five isotopes and eight delayed proton branches were identified for the first time. Delayed proton energy spectra and proton coincident .gamma.-ray and x-ray spectra were measured for all precursors. In a few cases, proton branching ratios were also determined. The precursor mass numbers were determined by the separator, while the proton coincident x-ray energies provided unambiguous Z identifications. The proton coincident .gamma.-ray intensities were used to extract final state branching ratios. Proton emission from ground and isomeric states was observed in many cases. The majority of the delayed proton spectra exhibited the smooth bell-shaped distribution expected for heavy mass precursors. The experimental results were compared to statistical model calculations using standard parameter sets. Calculations using Nilsson model/RPA .beta.-strength functions were found to reproduce the spectral shapes and branching ratios better than calculations using either constant or gross theory .beta.-strength functions. Precursor half-life predictions from the Nilsson model/RPA .beta.-strength functions were also in better agreement with the measured half-lives than were gross theory predictions. The ratios of positron coincident proton intensities to total proton intensities were used to determine Q/sub EC/-B/sub p/ values for several precursors near N=82. The statistical model calculations were not able to reproduce the experimental results for N=81 precursors. 154 refs., 82 figs., 19 tabs.

Download or read book Beta delayed Particle Emission from Neutron deficient Tellurium Iodine Xenon Cesium and Barium Isotopes written by P. Tidemand-Petersson and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book PARTICLE EMISSION FROM NUCLEI written by Dorin N. Poenaru and published by CRC-Press. This book was released on 1988-11-30 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta delayed Proton Emission from Isotopes of Mercury Csium Xenon and Krypton written by B. Jonson and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alpha decay Spectroscopy and Beta delayed Fission of Neutron Deficient Isotopes 194 196At written by Victoria Louise Truesdale and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta delayed Neutron Emission Studies of Neutron rich Palladium and Silver Isotopes written by Karl Isaac Smith and published by . This book was released on 2014 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Statistical Effects in Beta delayed Neutron Emission from Fission Product Nuclides written by Robert Dennis McElroy and published by . This book was released on 1986 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta delayed Proton Emission from Isotopes of Mercury Cesium Xenon and Krypton written by Björn Jonson (technicus.) and published by . This book was released on 1972 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Decays of 22Al and 26P written by Michael Dean Cable and published by . This book was released on 1983 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Study of Beta delayed Neutron Decay Near the Neutron Drip Line written by Chandana Sujeewa Sumithrarachchi and published by . This book was released on 2007 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta Delayed Proton Emission From Isotopes of Mercury Cesium Xenon and Krypton Akademisk Avhandling 2 Februari 1973 written by Björn Jonson and published by . This book was released on 1972 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Beta delayed Proton Decay in the Lanthanide Region written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of 24 new .beta.-delayed proton precursors and several new decay branches in the region of 56

Download or read book Beta delayed Charged Particle Decays of Neutron deficient Nuclei 20Mg 23Si and 22Si written by Mathieu Babo and published by . This book was released on 2016 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three Si stripped detectors (DSSD) surrounded by 16 Ge detectors (SeGA) were used to study the beta-delayed decay of 20Mg, 23Si and 22Si near the proton drip-line. These nuclei were produced at NSCL (MSU, USA) using the A1900 and the RFFS separator. The decay scheme (beta-p) of 20Mg was built by measuring the protons emitted in coincidence with three gamma-ray transitions in the daughter 19Ne. The level scheme of 20Na from the present work is in good agreement with previous measurements. Half-life measurements performed with proton and gamma gates were not conclusive. In the same way, the decay scheme of 23Si was built by measuring protons in coincidence with the gamma-rays emitted by the three first states in 22Mg. Gamma-rays at 332 keV (21Na) were observed and confirms the beta-2p branch. A transition at 1633 keV (20Ne) could correspond to the expected beta-3p channel. The IAS measured at 11.7 (4) MeV, completed the multiplet (A=23, T=5/2). The IMME was applied, leading to a new mass measurement of 23Si, 23.27 (7) MeV. For 22Si, a gamma-ray transition at 596 keV (20Na) allowed the identification of the beta-2p branch. 25 new proton-unbound states were identified in 22Al, and the IAS was measured at 9.09 (8) MeV. Mass of 22Si (0+) was deduced from the ft value for the superallowed Fermi decay from the ground state to its IAS in 22Al. The S2p value at 900 (158) keV doesn't allow a 2-proton radioactivity, in contradiction with several theoretical predictions.

Download or read book Proton Emission from Neutron Deficient Light Nuclides written by Ross McPherson and published by . This book was released on 1964 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Delayed proton emission has been observed following bombardment of stable isotopes among the elements between nitrogen and silicon using both the external and internal proton beams of the McGill 100 Mev synchrocyclotron. The protons are emitted from virtual states excited by the beta decay of highly neutron deficient nuclides. Charged particle spectroscopy, cross bombardment and reaction Q values have allowed the identification of several new radioactive neutron deficient nuclides as the precursors of the proton emission. The delayed proton precursors (and their half-lives in msec where measured) are O13, Ne17 (103 ± 7), Mg21 (118 ± 4), and Si25 (225 ± 6), all having A = 4n + 1 and Tz = -3/2. The lowest energy T = 3/2 state bas been located in the Tz = -1/2 daughter nuclides Na21, and A125. These states are excited by superallowed beta decay of the respective precursor and their de-excitation is by isotopic spin forbidden proton emission. [...]" --