Download or read book RF Design of Normal Conducting 704 MHz and 2 1 GHz Cavities for LEReC Linac written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve RHIC luminosity for heavy ion beam energies below 10 GeV/nucleon, the Low Energy RHIC electron Cooler (LEReC) is currently under development at BNL. Two normal conducting cavities, a single cell 704 MHz cavity and a 3 cell 2.1 GHz third harmonic cavity, will be used in LEReC for energy spread correction. Currently these two cavities are under fabrication. In this paper we report the RF design of these two cavities.
Download or read book Design of Normal Conducting 704 MHz and 2 1 GHz Cavities for LEReC Linac written by and published by . This book was released on 2015 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve RHIC luminosity for heavy ion beam energies below 10 GeV/nucleon, the Low Energy RHIC electron Cooler (LEReC) is currently under development at BNL. Two normal conducting cavities, a single cell 704 MHz cavity and a 3 cell 2.1 GHz third harmonic cavity, will be used in LEReC for energy spread correction. In this paper we report the design of these two cavities.
Download or read book Mechanical Design and 3 D Coupled RF Thermal structural Analysis of Normal Conducting 704 MHz and 2 1 GHz Cavities for LEReC LINAC written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SRF and RF Systems for LEReC Linac written by and published by . This book was released on 2015 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Low Energy RHIC electron Cooling (LEReC) is under development at BNL to improve RHIC luminosity at low energies. It will consist of a short electron linac and two cooling sections, one for blue and one for yellow rings. For the first stage of the project, LEReC-I, we will install a 704 MHz superconducting RF cavity and three normal conducting cavities operating at 9 MHz, 704 MHz and 2.1 GHz. The SRF cavity will boost the electron beam energy up to 2 MeV. The warm cavities will be used to correct the energy spread introduced in the SRF cavity. The paper describes layouts of the SRF and RF systems, their parameters and status.
Download or read book HOM Consideration of 704 MHz and 2 1 GHz Cavities for LEReC Linac written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve RHIC luminosity for heavy ion beam energies below 10 GeV/nucleon, the Low Energy RHIC electron Cooler (LEReC) is currently under development at BNL. The Linac of LEReC is designed to deliver 2 MV to 5 MV electron beam, with rms dp/p less than 5·10−4. The HOM in this Linac is carefully studied to ensure this specification.
Download or read book Physics Design of APT Linac with Normal Conducting Rf Cavities written by and published by . This book was released on 1996 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accelerator based production of tritium calls for a high-power, cw proton linac. Previous designs for such a linac use a radiofrequency quadrupole (RFQ), followed by a drift-tube linac (DTL) to an intermediate energy and a coupled-cavity linc (CCL) to the final energy. The Los Alamos design uses a high-energy (6.7 MeV) RFQ followed by the newly developed coupled-cavity drift-tube linac (CCDTL) and a CCL. This design accommodates external electromagnetic quadrupole lenses which provide a strong uniform focusing lattice from the end of the RFQ to the end of the CCL. The cell lengths in linacs of traditional design are typically graded as a function of particle velocity. By making groups of cells symmetric in both the CCDTL and CCL, the cavity design as well as mechanical design and fabrication is simplified without compromising the performance. At higher energies, there are some advantages of using superconducting rf cavities. Currently, such schemes are under vigorous study. This paper describes the linac design based on normal conducting cavities and presents simulation results.
Download or read book A New RF System for the CEBAF Normal Conducting Cavities written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CEBAF Accelerator at Jefferson Lab is a 6 GeV five pass electron accelerator consisting of two superconducting linacs joined by independent magnetic transport arcs. CEBAF also has numerous normal conducting cavities for beam conditioning in the injector and for RF extraction to the experimental halls. The RF systems that presently control these cavities are becoming expensive to maintain, therefore a replacement RF control system is now being developed. For the new RF system, cavity field control is maintained digitally using an FPGA which contains the feedback algorithm. The system incorporates digital down conversion, using quadrature under-sampling at an IF frequency of 70 MHz. The VXI bus-crate was chosen as the operating platform because of its excellent RFI/EMI properties and its compatibility with the EPICS control system. The normal conducting cavities operate at both the 1497 MHz accelerating frequency and the sub-harmonic frequency of 499 MHz. To accommodate this, the ne w design will use different receiver-transmitter daughter cards for each frequency. This paper discusses the development of the new RF system and reports on initial results.
Download or read book Microwave Effects on DNA and Proteins written by Chris D. Geddes and published by Springer. This book was released on 2017-03-09 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: For several years, researchers have been reporting the effects of microwave radiation/heating on both the structure and function of DNA, RNA and proteins. For the most part, favourable accelerated biological functions are observed as microwave induced heating occurs, but other not-so favourable effects are also observed, such as denaturation, fragmentation and the so called and ill-explained, non-thermal microwave effects. This volume, the first of its kind, brings researchers together from around the world to discuss their current findings and thinking on the effects of Microwaves on Biological systems, particularly DNA, RNA and proteins, in the form of contributed edited chapters.
Download or read book Macromolecular Crystallography written by Charles W. Carter and published by Gulf Professional Publishing. This book was released on 1997 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Accurate molecular structures is vital for rational drug design and for structure based functional studies directed toward the development of effective therapeutic agents and drugs. Crystallography can reliably predict structure, both in terms of folding and atomic details of bonding. * Phases * Map interpretation and refinement * Analysis and software.
Download or read book Accelerator Driven Subcritical Reactors written by H Nifenecker and published by CRC Press. This book was released on 2003-06-01 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the basic knowledge in nuclear, neutron, and reactor physics necessary for understanding the principle and implementation of accelerator driven subcritical nuclear reactors (ADSRs), also known as hybrid reactors. Since hybrid reactors may contribute to future nuclear energy production, the book begins with a discussion of
Download or read book Yvain written by Chretien de Troyes and published by Yale University Press. This book was released on 1987-09-10 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: A twelfth-century poem by the creator of the Arthurian romance describes the courageous exploits and triumphs of a brave lord who tries to win back his deserted wife's love
Download or read book Critical Reflection In Health And Social Care written by White, Sue and published by McGraw-Hill Education (UK). This book was released on 2006-07-01 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: "... the book makes an excellent contributionto the library of those keen to delve further intothe realm of critical reflection, understand variousinterpretations of interdisciplinary practices, anduse these to aid their own and others’ professionalpractice, exploration and development." Learning in Health and Social Care How can professionals reflect critically on the aspects of their work they take for granted? How can professionals practise with creativity, intelligence and compassion? What current methods and frameworks are available to assist professionals to reflect critically on their practice? The use of critical reflection in professional practice is becoming increasingly popular across the health professions as a way of ensuring ongoing scrutiny and improved concrete practice - skills transferable across a variety of settings in the health, social care and social work fields. This book showcases current work within the field of critical reflection throughout the world and across disciplines in health and social care as well as analyzing the literature in the field. Critical Reflection in Health and Social Carereflects the transformative potential of critical reflection and provides practitioners, students, educators and researchers with the key concepts and methods necessary to improve practice through effective critical reflection. Contributors:Gurid Aga Askeland, Andy Bilson, Fran Crawford, Jan Fook, Lynn Froggett , Sue Frost, Fiona Gardner, Jennifer Lehmann, Marceline Naudi, Bairbre Redmond, Gerhard Reimann, Colin Stuart, Pauline Sung-Chan, Carolyn Taylor, Susan White, Elizabeth Whitmore, Angelina Yuen-Tsang.
Download or read book International Conference on the Physics of Reactors 2008 PHYSOR 2008 written by Rakesh Chawla and published by . This book was released on 2008 with total page 3389 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of Accelerator Driven Systems Research and Technology Development written by International Atomic Energy Agency and published by IAEA Tecdoc. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the greatest challenges for nuclear energy is how to properly manage the highly radioactive waste generated during irradiation in nuclear reactors. Accelerator Driven Systems (ADSs) may offer new prospects and advantages for the transmutation of such high level nuclear waste. ADS or accelerator driven transmutation of waste (ATW) consists of a high power proton accelerator, a heavy metal spallation target that produces neutrons when bombarded by the high power beam, and a sub-critical core that is neutronically coupled to the spallation target. This publication provides a comprehensive state of the art of the ADS technology by representing the different ADS concepts proposed worldwide in the last 15 years, as well as the related R&D activities and demonstration initiatives carried out at national international level.
Download or read book Nuclear Energy Synergetics written by A. A. Harms and published by Springer. This book was released on 2013-02-19 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended as an introductory exposition of those nuclear energy systems concepts which are characterized by an integrated utiliz ation of complementary nuclear processes. Basic to such systems is the notion of synergism, which herein implies the cooperative interaction of selected nuclear reactions and system components so as to provide overall advantages not possible otherwise. While the concept of nuclear energy synergism has in recent years become the focus of an increasing number of conferences, scientific papers, and institutional in-house reports, no text which encompasses the major topics of the subject at a conceptual and analytical level has appeared. It is our aim to present a systematic characterization of these emerging nuclear energy concepts suitable for the senior university student of nuclear science and engineering as well for the active pro fessional involved in nuclear energy systems planning and analysis. In addressing the subject of nuclear energy synergism we have become most conscious of the tension between realism and vision in nuclear energy technology. As developed here, our perception of nuclear energy synergism is firmly rooted in the present and then seeks to proceed toward a heightened degree of compatibility and efficacy based on an enhanced integration of relevant nuclear processes. It is our view that such conceptual considerations must assume a greater role in the emerging techological orientation of nuclear energy systems planning.
Download or read book Charles Pettigrew First Bishop elect of the North Carolina Episcopal Church written by Bennett H Wall and published by Hassell Street Press. This book was released on 2021-09-10 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Aspect oriented Software Development written by Robert E. Filman and published by Addison-Wesley Professional. This book was released on 2005 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive reference on the emerging and dynamic field of Aspect - Oriented Software Development (AOSD).
