Download or read book CONCEPT DESIGN OF THE TARGET HORN SYSTEM FOR THE BNL NEUTRINO OSCILLATION EXPERIMENT written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The design concept for the integration of the target and the focusing horn system for the proposed BNL neutrino oscillation experiment is described in this paper. Also presented are issues associated with the functionality and thermo-mechanical response of the selected target intercepting the 28 GeV protons of the 1 MW upgraded AGS beam, the loading and mechanical response of the focusing horn subjected to high currents and energy deposited due to beam/target interaction, the integration of the two systems, and the heat removal schemes. The proposed target intercepts the 8.9 x 10[sup 13], 28 GeV protons with a 2.5 Hz cycle time over a spot that encloses the 3[sigma] of the beam. In the baseline. design the inner conductor of the aluminum horn encloses the target while allowing for an annular space for forced cooling. Approximately 250 kA pulse of current of 20[micro]s duration will flow through the horn at 2.5 Hz repetition rate inducing high compressive forces, vibration and heat. The paper addresses these issues of horn mechanical response, heat removal scenario, and useful life estimation including radiation damage.
Download or read book CONCEPT DESIGN OF THE TARGET HORN SYSTEM FOR THE BNL NEUTRINO OSCILLATION EXPERIMENT written by N.KIRK SIMOS (H.KAHN, S.CARROL, A.LUDEWIG, H.) and published by . This book was released on 2003 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design concept for the integration of the target and the focusing horn system for the proposed BNL neutrino oscillation experiment is described in this paper. Also presented are issues associated with the functionality and thermo-mechanical response of the selected target intercepting the 28 GeV protons of the 1 MW upgraded AGS beam, the loading and mechanical response of the focusing horn subjected to high currents and energy deposited due to beam/target interaction, the integration of the two systems, and the heat removal schemes. The proposed target intercepts the 8.9 x 10{sup 13}, 28 GeV protons with a 2.5 Hz cycle time over a spot that encloses the 3{sigma} of the beam. In the baseline. design the inner conductor of the aluminum horn encloses the target while allowing for an annular space for forced cooling. Approximately 250 kA pulse of current of 20{micro}s duration will flow through the horn at 2.5 Hz repetition rate inducing high compressive forces, vibration and heat. The paper addresses these issues of horn mechanical response, heat removal scenario, and useful life estimation including radiation damage.
Download or read book Overview of Recent Focussing Horns for the BNL Neutrino Program written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper we present an overview of the two magnetic focussing horn systems recently constructed, installed, and operated in the fast extracted beam for the neutrino physics program at the AGS. These horn systems consist of a number of interrelated subsystems which operate together to produce a very intense, parallel beam of pions. The strong magnetic focussing is generated by pulsing the coaxial structures of the horns with currents of up to 300kA during the 2.5 .mu.sec proton beam spill. Because of their high levels of induced radioactivity, these horns had to be designed for reliability and ease in installation. Both horn systems built had the same overall features, but the broad band system focussed pions over as large a momentum band as possible to maximize the neutrino flux. The narrow band systems restricted the momentum to +-15% of 3 GeV/c to provide kinematic constraints for the experiment. A synopsis of the design concepts and critical engineering requirements is given. Detailed discussion of the subsystems follows in the subsequent papers.
Download or read book Digest of Technical Papers written by and published by . This book was released on 2003 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book TARGET AND HORN COOLING FOR THE VERY LONG BASELINE NEUTRINO EXPERIMENT written by and published by . This book was released on 2005 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermodynamic studies have been performed for the beam target and focusing horn system to be used in a very long baseline neutrino oscillation experiment [1]. A 2mm rms beam spot with power deposition of over 18 KW presents challenging material and engineering solutions to this project. Given that the amount of heat transferred by radiation alone from the target to the horn is quite small, the primary mechanism is heat removal by forced convection in the annular space between the target and the horn. The key elements are the operating temperature of the target, the temperature of the cooling fluid and the heat generation rate in the volume of the target that needs to be removed. These working parameters establish the mass flow rate and velocity of the coolant necessary to remove the generated heat. Several cooling options were explored using a carbon-carbon target and aluminum horn. Detailed analysis, trade studies and simulations were performed for cooling the horn and target with gaseous helium as well as water.
Download or read book THE BNL SUPER NEUTRINO BEAM PROJECT written by D. RAPARIA and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine the neutrino mixing amplitudes and phase accurately, as well as the CP violation parameters, a very long base line super neutrino beam facility is needed. This is possible due to the long distance and wideband nature of the neutrino beam for the observation of several oscillations from one species of the neutrino to the other [1,2]. BNL plans to upgrade the AGS proton beam from the current 0.14 MW to higher than 1.0 MW and beyond for such a neutrino facility which consists of three major subsystems. First is a 1.5 GeV superconducting linac to replace the booster as injector for the AGS, second is the performance upgrade for the AGS itself for the higher intensity and repetition rate, and finally is target and horn system for the neutrino production. The major contribution for the higher power is from the increase of the repetition rate of the AGS form 0.3 Hz to 2.5 Hz, with moderate increase from the intensity [3]. The design consideration to achieve high intensity and low losses for the linac and the AGS will be reviewed. The target horn design for high power operation and easy maintenance will also be presented.
Download or read book DESIGN OF THE BNL SUPER NEUTRINO BEAM FACILITY written by and published by . This book was released on 2004 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: A very long base line super neutrino beam facility is need to determine the neutrino mixing amplitudes and phase accurately, as well as the CP violation parameters. This is possible due to the long distance and wideband nature of the neutrino beam for the observation of several oscillations from one species of the neutrino to the other. BNL plans to upgrade the AGS proton beam from the current 0.14 MW to higher than 1.0 MW and beyond for such a neutrino facility which consists of three major subsystems. First is a 1.2 GeV superconducting linac to replace the booster as injector for the AGS, second is the performance upgrade for the AGS itself for the higher intensity and repetition rate, and finally is target and horn system for the neutrino production. The major contribution for the higher power is from the increase of the repetition rate of the AGS form 0.3 Hz to 2.5 Hz, with moderate increase from the intensity. The design consideration to achieve high intensity and low losses for the linac and the AGS will be reviewed. The target horn design for high power operation and easy maintenance will also be presented.
Download or read book Mechanical Support and Transport System Used for the Neutrino Horn System at Brookhaven National Laboratory written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of neutrinos at the Alternating Gradient Synchrotron (AGS), Brookhaven National Laboratory (BNL), requires hardware for their initiation and control. The basics consist of a target, two horns and three collimators. This paper describes the installation, support and positioning of these components within a settling concrete blockhouse.
Download or read book The CERN Neutrino Beam to Gran Sasso NGS written by K. Elsener and published by . This book was released on 1998 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book THE BNL SUPER NEUTRINO BEAM PROJECT written by and published by . This book was released on 2005 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: BNL plans to create a very long base line super neutrino beam facility by upgrading the AGS from the current 0.14 MW to 1.0 MW and beyond. The proposed facility consists of three major components. First is a 1.5 GeV superconducting linac to replace the booster as injector for the AGS, second is the performance upgrade of the AGS itself for higher intensity and repetition rate, and finally is the target and horn system for the neutrino production. The major contribution for the higher power is from the increase of the repetition rate of the AGS from 0.3 Hz to 2.5 Hz, with moderate increase from the intensity. The accelerator design considerations to achieve high intensity and low losses for the new linac and the AGS will be presented. The target and horn design for high power operation and easy maintenance will also be covered.
Download or read book High Intensity and High Brightness Hadron Beams written by I. Hofmann and published by American Institute of Physics. This book was released on 2005-07-18 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cd-ROM contains: electronic version of AIP Conference Proceedings found in text.
Download or read book AGS SUPER NEUTRINO BEAM FACILITY ACCELERATOR AND TARGET SYSTEM DESIGN NEUTRINO WORKING GROUP REPORT II written by and published by . This book was released on 2003 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document describes the design of the accelerator and target systems for the AGS Super Neutrino Beam Facility. Under the direction of the Associate Laboratory Director Tom Kirk, BNL has established a Neutrino Working Group to explore the scientific case and facility requirements for a very long baseline neutrino experiment. Results of a study of the physics merit and detector performance was published in BNL-69395 in October 2002, where it was shown that a wide-band neutrino beam generated by a 1 MW proton beam from the AGS, coupled with a half megaton water Cerenkov detector located deep underground in the former Homestake mine in South Dakota would be able to measure the complete set of neutrino oscillation parameters: (1) precise determination of the oscillation parameters?m322 and sin2 2?32; (2) detection of the oscillation of?{sub {mu}}-?{sub e} and measurement of sin2 2?13; (3) measurement of?m212 sin 2?12 in a?{sub {mu}} →?{sub e} appearance mode, independent of the value of?13; (4) verification of matter enhancement and the sign of?m322; and (5) determination of the CP-violation parameter?{sub CP} in the neutrino sector. This report details the performance requirements and conceptual design of the accelerator and the target systems for the production of a neutrino beam by a 1.0 MW proton beam from the AGS. The major components of this facility include a new 1.2 GeV superconducting linac, ramping the AGS at 2.5 Hz, and the new target station for 1.0 MW beam. It also calls for moderate increase, about 30%, of the AGS intensity per pulse. Special care is taken to account for all sources of proton beam loss plus shielding and collimation of stray beam halo particles to ensure equipment reliability and personal safety. A preliminary cost estimate and schedule for the accelerator upgrade and target system are also included.
Download or read book Long Baseline Neutrino Oscillation Experiment at the AGS Physics Design Report written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a design for a multi-detector long baseline neutrino oscillation experiment at the BNL AGS. It has been approved by the BNL-HENP-PAC as AGS Experiment 889. The experiment will search for oscillations in the[nu][sub[mu]], disappearance channel and the[nu][sub[mu]][leftrightarrow][nu][sub e] appearance channel by means of four identical neutrino detectors located 1, 3, 24, and 68km from the AGS neutrino source. Observed depletion of the[nu][sub[mu]] flux (via quasi-elastic muon neutrino events, [nu][sub[mu]]n[yields][mu][sup[minus]]p) in the far detectors not attended by an observed proportional increase of the[nu][sub e] flux (via quasi-elastic electron neutrino events, [nu][sub e]n[yields] e[sup[minus]]p) in those detectors will be prima facie evidence for the oscillation channel[nu][sub[mu]][leftrightarrow][nu][sub[tau]]. The experiment is directed toward exploration of the region of the neutrino oscillation parameters[Delta]m[sup 2] and sin[sup 2]2[theta], suggested by the Kamiokande and IMB deep underground detectors but it will also explore a region more than two orders of magnitude larger than that of previous accelerator experiments. The experiment will run in a mode new to BNL. It will receive the fast extracted proton beam on the neutrino target approximately 20 hours per day when the AGS is not filling RHIC. A key aspect of the experimental design involves placing the detectors 1.5 degrees off the center line of the neutrino beam, which has the important advantage that the central value of the neutrino energy ([approx] 1 GeV) and the beam spectral shape are, to a good approximation, the same in all four detectors. The proposed detectors are massive, imaging, water Cherenkov detectors similar in large part to the Kamiokande and IMB detectors. The design has profited from their decade-long experience, and from the detector designs of the forthcoming SNO and SuperKamiokande detectors.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sculptures 16 17 18 si cles des cantons de Pouilly en Aucois Saint Seine l Abbaye et Sombernon C te d Or written by and published by . This book was released on 1970 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particle Physics Reference Library written by Christian W. Fabjan and published by Springer Nature. This book was released on 2020 with total page 1083 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second open access volume of the handbook series deals with detectors, large experimental facilities and data handling, both for accelerator and non-accelerator based experiments. It also covers applications in medicine and life sciences. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
