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The Study Of Beta Delayed Neutron Decay Near The Neutron Drip Line
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Book Synopsis The Study of Beta-delayed Neutron Decay Near the Neutron Drip Line by : Chandana Sujeewa Sumithrarachchi
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:
Book Synopsis Beta -delayed Neutron Decay of Drip Line Nuclei 11Li and 14Be by :
Download or read book Beta -delayed Neutron Decay of Drip Line Nuclei 11Li and 14Be written by and published by . This book was released on 1996 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the [beta]-delayed Neutron Decay of 14Be by : Michael David Belbot
Download or read book A Study of the [beta]-delayed Neutron Decay of 14Be written by Michael David Belbot and published by . This book was released on 1996 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta-decay, Beta-delayed Neutron Emission and Isomer Studies Around 78Ni by : Mustafa M. Rajabali
Download or read book Beta-decay, Beta-delayed Neutron Emission and Isomer Studies Around 78Ni written by Mustafa M. Rajabali and published by . This book was released on 2009 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of nuclei with few nucleons outside the closed shell provides benchmarks for the nuclear shell model especially in this modern era of physics where exotic doubly magic nuclei can be tested. The subject of this thesis is to experimentally investigate the properties of nuclei near 78Ni and to confront them with the predictions of modern large scale shell model calculations. In this regard, an experiment was performed at the National Superconducting Cyclotron Laboratory (NSCL) to measure excited states in 71−73Ni populated via the beta-decay of 71−73Co. Data collected from this experiment lead to partial level schemes for 71Ni and 73Ni and to improvements of existing level schemes for 70Ni and 72Ni. An objective of this experiment was to investigate the changes in excitation energy of the 5/2− state relative to the 9/2 ground state as well as the search for the 1/2− isomeric state in odd-mass nickel isotopes approaching 78Ni. A second experiment was performed also at the NSCL where a two nucleon removal reaction from 73Cu was used to populate the low lying yrast states in 71Ni. Results from this in-beam experiment aided in constructing the level scheme of 71Ni. Systematics in shell model calculations using realistic interactions for odd mass 69−77Ni reveal a steady increase in energy spacing between the 1/2− level and 9/2 ground state - suggesting an increased role of the g9[subscript /]2 correlations, but an almost constant energy separation between the 5/2− and 1/2− excited states. Using data from the two experiments, the position of the 5/2− state in 71Ni and 73Ni and 1/2− state in 71Ni were identified. The decay of 74[superscript,]76Ni into 74[superscript,]76Cu was also investigated. Low lying states revealed new level schemes which are presented with an interpretation of the position of 1+ states populated via allowed GT transitions. A second project in this thesis is on the design and development of a detector system using a dual micro channel plate configuration. The system was built to detect and measure nanosecond isomers in neutron rich 73−76Cu and 76Zn isotopes. The design of the instrument and preliminary beam and alpha source tests done on the system are discussed.
Book Synopsis Particle Emission From Nuclei by : Dorin N. Poenaru
Download or read book Particle Emission From Nuclei written by Dorin N. Poenaru and published by CRC Press. This book was released on 2018-01-18 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has three volume. The first volume is mainly devoted to the macroscopic-microscopic theory in its traditional form and extended to very high mass and charge asymmetry. Applications of this theory to the emission of different kinds of charged particles from nuclei are presented in the second volume, where recent experimental achievements in alpha decay, proton, and heavy ion (14C, 24Ne, 28Mg, etc.) radioactivities are also discussed. Experiments on spontaneous fission, fission isomers, and more complex phenomena like particle-accompanied fission,delayed processes: p, a, 2p, t, n, 2n, 3n, and the new mechanism of cold fission (or fission with compact shapes) are described in detail in the third volume.
Book Synopsis An Investigation of the Delayed Neutron Decay Curves Resulting from Uranium and Plutonium Fission by : C. Redman
Download or read book An Investigation of the Delayed Neutron Decay Curves Resulting from Uranium and Plutonium Fission written by C. Redman and published by . This book was released on 1944 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of the Delayed Neutrons by :
Download or read book Studies of the Delayed Neutrons written by and published by . This book was released on 1947 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of the Delayed Neutrons by :
Download or read book Studies of the Delayed Neutrons written by and published by . This book was released on 1947 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta-delayed Neutron Data and Models for SCALE by : Kemper Dyar Talley
Download or read book Beta-delayed Neutron Data and Models for SCALE written by Kemper Dyar Talley and published by . This book was released on 2016 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta-delayed Neutron Spectroscopy of Fission Fragments Using the Versatile Array of Neutron Detectors at Low Energy by : Stanley Vincent Paulauskas
Download or read book Beta-delayed Neutron Spectroscopy of Fission Fragments Using the Versatile Array of Neutron Detectors at Low Energy written by Stanley Vincent Paulauskas and published by . This book was released on 2013 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work details the study of nuclear decay in the region of doubly magic 78Ni using the Versatile Array of Neutron Detectors at Low Energy (VANDLE). This detector system uses the time-of-flight technique to measure the energy of beta-delayed neutrons. VANDLE uses a fully digital data acquisition system equipped with timing algorithms developed as part of the experimental work. The experiment examined nearly 30 beta-delayed neutron precursors produced at the Hollifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. This work discusses three of these nuclei: 77,78Cu and 84Ga. Results from the experiment provide details of the Gamow-Teller decay in neutron rich nuclei near 78Ni.
Book Synopsis The [Beta] and [Beta]-delayed Neutron Decay Studies of 75CU and 77CU by : Sergey V. Ilyushkin
Download or read book The [Beta] and [Beta]-delayed Neutron Decay Studies of 75CU and 77CU written by Sergey V. Ilyushkin and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: [Beta] decay studies of nuclei at the limits of stability are essential in evaluating the physical aspects behind the structural changes, particle configurations and interactions in neutronor proton-rich systems. Isobarically purified beams were used at the Holifeld Radioactive Ion Beam Facility at Oak Ridge National Laboratory to study the [Beta] decays of 75Cu and 77Cu. Two different experiments were performed. In the first study, only concerning the decay of 77Cu, the 25-MV tandem accelerated ions were time-tagged using a micro-channel plate detector, passed through a six-segment ion chamber, and implanted on the tape of a moving tape collector. The passage through an ion chamber insured the ion identification by energy loss in the six segments. The Low Energy Radioactive Ion Beam Spectroscopy Station consisting of a universal detector support with four Ge clover detectors, two [Beta] detectors and a moving tape collector of 10 gain in beam intensity for both 75Cu and 77Cu. These experiments resulted in considerable information on the previously unknown level structure of 75Zn with some 120 [gamma]-ray transitions placed in a level scheme containing 59 levels including two above the neutron separation energy. We have also identified the previously unknown 1/2- isomeric state at 127 keV. A total of 64 [gamma] rays were placed in a level scheme for 77Zn containing 35 excited states including one state above the neutron separation energy, while two [gamma] rays were observed for the [Beta]n branch to states in 76Zn. The growth and decay curves of some prominent [gamma] rays indicate a single [beta]-decaying state with a half-life of 480(9)ms. The decay pattern for 77Cu, with observed feeding of 8(3)% to the 7/2 77Zng and 6(3)% to the 1/2- 77Znm, in contrast to the large feeding observed for decay of [Pi]p3/2 73Cug to 1/2- 73Zng, strongly suggests a {Pi]5/2 ground state for the studied 77Cu activity. Results will be presented and the prospects for future possible studies will also be discussed.
Book Synopsis Statistical Effects in Beta-delayed Neutron Emission from Fission Product Nuclides by : Robert Dennis McElroy
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:
Book Synopsis Beta-delayed Charged Particle Decays of Neutron-deficient Nuclei 20Mg, 23Si and 22Si by : Mathieu Babo
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.
Book Synopsis Study of the D(7Be,8B)n Reaction by : Christopher F. Powell
Download or read book Study of the D(7Be,8B)n Reaction written by Christopher F. Powell and published by . This book was released on 1998 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta-decay Half-lives and Beta-delayed Neutron Emisison Probabilities of Nuclei in the Region A. 110, Relevant for the R-process by :
Download or read book Beta-decay Half-lives and Beta-delayed Neutron Emisison Probabilities of Nuclei in the Region A. 110, Relevant for the R-process written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of the [beta]-decay properties of A H" 110 r-process nuclei have been completed at the National Superconducting Cyclotron Laboratory, at Michigan State University. [beta]-decay half-lives for 1°5Y, {sup 106,107}Zr and {sup 108,111}Mo, along with, B-delayed neutron emission probabilities of 104Y, 109,11OMo and upper limits for 105Y, 103-107Zr and 108,111 Mo have been measured for the first time. Studies on the basis of the quasi-random phase approximation are used to analyze the ground-state deformation of these nuclei.
Book Synopsis Statistical and Non Statistical Models for Delayed Neutron Emission by : Zilda Maria De Oliveira
Download or read book Statistical and Non Statistical Models for Delayed Neutron Emission written by Zilda Maria De Oliveira and published by . This book was released on 1980 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Decay Studies of Nuclei Near the Proton Drip Line by : Jay Edward Reiff
Download or read book Decay Studies of Nuclei Near the Proton Drip Line written by Jay Edward Reiff and published by . This book was released on 1989 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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