Download or read book The Beta Delayed Proton and Gamma Decay of 27P written by Ellen Nicole Simmons and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Additional Results from the Beta delayed Proton Decays of 27P and 31Cl written by and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental investigation of the decays of proton-rich light nuclei has provided a wealth of spectroscopic information. This includes details of energy levels, spins, isospins, masses, half-lives and other decay properties. In light nuclei, total beta decay energies rapidly increase as one moves away from the valley of beta-stable nuclides towards the proton drip line. This opens up decay modes, such as beta-delayed proton and beta-delayed alpha emission, which are very sensitive probes of nuclear structure. There have been several recent articles that review the decay properties of proton drip-line nuclei. The beta decays of proton-rich light nuclei (with T{sub z} ≤ -1/2) are characterized by two general features. The first is a fast superallowed Fermi transition to the isobaric analog state (IAS) in the beta daughter. If the IAS is above the proton separation energy, the beta-decaying precursor nuclide is classified as a strong beta-delayed proton emitter. The A = 4n+1, T{sub z}=-3/2 series of nuclei from 17Ne to 73Sr (with the exception of the unobserved member 69Kr), are all strong [Beta]p emitters. In contrast, the A = 4n, T{sub z}=-1 series of nuclei, from 24Al to 48Mn are designated as weak [Beta]p emitters since the IAS in the beta daughters is bound with respect to proton emission.
Download or read book Additional Results from the Beta delayed Proton Decays Of sup 27 P And sup 31 Cl written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental investigation of the decays of proton-rich light nuclei has provided a wealth of spectroscopic information. This includes details of energy levels, spins, isospins, masses, half-lives and other decay properties. In light nuclei, total beta decay energies rapidly increase as one moves away from the valley of beta-stable nuclides towards the proton drip line. This opens up decay modes, such as beta-delayed proton and beta-delayed alpha emission, which are very sensitive probes of nuclear structure. There have been several recent articles that review the decay properties of proton drip-line nuclei. The beta decays of proton-rich light nuclei (with T[sub z][le] -1/2) are characterized by two general features. The first is a fast superallowed Fermi transition to the isobaric analog state (IAS) in the beta daughter. If the IAS is above the proton separation energy, the beta-decaying precursor nuclide is classified as a strong beta-delayed proton emitter. The A= 4n+1, T[sub z]=-3/2 series of nuclei from[sup 17]Ne to[sup 73]Sr (with the exception of the unobserved member[sup 69]Kr), are all strong[Beta]p emitters. In contrast, the A= 4n, T[sub z]=-1 series of nuclei, from[sup 24]Al to[sup 48]Mn are designated as weak[Beta]p emitters since the IAS in the beta daughters is bound with respect to proton emission.
Download or read book Beta Decays and Delayed Gammas from Fission Fragments written by James Griffin and published by . This book was released on 1963 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High resolution Studies of Beta delayed Proton Emission in Light Nuclei written by Richard George Sextro and published by . This book was released on 1974 with total page 364 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 Observation of Doppler Broadening in delayed Proton Decay written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: The Doppler broadening of gamma-ray peaks is due to nuclear recoil from beta-delayed nucleon emission can be used to measure the energies of the nucleons. This method has never been tested using beta-delayed proton emission or applied to a recoil heavier than A = 10. Purpose: To test and apply this Doppler broadening method using gamma-ray peaks from the P-26(beta p gamma)Al-25 decay sequence. Methods: A fast beam of P-26 was implanted into a planar Ge detector, which was used as a P-26 beta-decay trigger. The SeGA array of high-purity Ge detectors was used to detect gamma rays from the P-26(beta p gamma)Al-25 decay sequence. Results: Radiative Doppler broadening in beta-delayed proton-gamma decay was observed for the first time. Moreover, the Doppler broadening analysis method was verified using the 1613-keV gamma-ray line for which the proton energies were previously known. The 1776-keV gamma ray de-exciting the 2720 keV Al-25 level was observed in P-26(beta p gamma)Al-25 decay for the first time and used to determine that the center-of-mass energy of the proton emission feeding the 2720-keV level is 5.1 +/- 1.0 (stat.) +/- 0.6 (syst.) MeV, corresponding to a Si-26 excitation energy of 13.3 +/- 1.0 (stat.) +/- 0.6 (syst.) MeV for the proton-emitting level. Conclusions: Finally, the Doppler broadening method has been demonstrated to provide practical measurements of the energies for beta-delayed nucleon emissions populating excited states of nuclear recoils at least as heavy as A = 25.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-03 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beta Decay and Delayed Proton Emission of a New Nuclide 59Zn written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beta Decay and Delayed Proton Emission of New Nuclide 59Zn written by Jorma Honkanen and published by . This book was released on 1981 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1969 with total page 388 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 1989 with total page 1332 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 Nuclear Isomers written by Ashok Kumar Jain and published by Springer Nature. This book was released on 2021-07-10 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear isomers are the long-lived excited states of nuclei. Therefore, they constitute the meta-stable landscape of nuclei. The first isomer was probably identified as early as 1921. Since then, the number of isomers has been growing steadily picking up pace in recent times. Interest in nuclear isomers has grown in recent years for many reasons. The experimental capabilities to observe isomers have been expanding to cover a wider time scale. This has opened up new windows to observe and decipher the underlying nuclear structure and interactions. Further, the isomers are beginning to be seen as potential energy storage devices and nuclear clocks with a host of applications. Possible discovery of a gamma ray laser has also ignited many researches in this area. Isomers now cover the full nuclear landscape with structural peculiarities specific to each region of the nuclear chart. Exploring the nuclear isomers, therefore, provides a novel insight into the nuclear structure properties of that region. There could be many different reasons for the long lives of excited nuclear states, which lead to the classification of isomers. Isomers are broadly classified in to four classes: Spin isomers, shape isomers, fission isomers and K-isomers. Seniority isomers have also been identified which are often clubbed with the spin isomers. We discuss this classification and the underlying causes in detail. Many examples are considered to highlight the large variety of isomers. The range of half-lives covered by the isomers varies from billions of years to nano-seconds and even small. To understand this vast variation is a fascinating endeavor in itself. The angular momentum couplings, nuclear shapes, pairing etc. conspire together to give this vast range of half-lives. We go through these aspects in detail, highlighting the various selection rules at work. It is interesting that the nuclear shapes play an important role in many types of isomers. The spin isomers, which occur in spherical or, near-spherical nuclei, are generally confined to the magic numbers. Seniority isomers are largely found in semi-magic nuclei and should be explored in conjunction with the spin isomers. New developments in seniority and generalized seniority isomers are discussed in detail. As the nuclei deform; the nature of isomers changes. We take a close look into the decay properties of isomers in deformed nuclei, particularly the K isomers, the shape isomers and the fission isomers. While doing so, the theoretical and experimental developments of isomers are also addressed. A number of open questions are posed for possible new experiments and better understanding of the isomers.
Download or read book Improvements to the On line Mass Separator RAMA the Beta delayed Charged particle Emission of Proton rich Sd Shell Nuclei written by Theodore Joseph Ognibene and published by . This book was released on 1996 with total page 322 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 1984-03 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International bibliography of periodical literature covering all fields of knowledge written by and published by . This book was released on 1987 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
