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in creator/contributor: "Ruggiero, A.G."

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A Super-Conducting Linac Driver for the Hfbr.

This paper reports on the feasibility study of a proton Super-Conducting Linac (SCL) as a driver for the High-Flux Breeder Reactor (HFBR) at Brookhaven National Laboratory (BNL). The Linac operates in Continuous Wave (CW) mode to produce an average 10 MW of beam power. The Linac beam energy is 1.0 GeV. The average proton beam intensity in exit is 10 mA.

Date: August 21, 2000

Creator: Alessi, J.; Raparia, D. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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The scrounge-atron: a phased approach to the advanced hydrotest facility utilizing proton radiography

The Department of Energy has initiated its Stockpile Stewardship and Management Program (SSMP) to provide a single, integrated technical program for maintaining the continued safety and reliability of the nation's nuclear weapons stockpile in the absence of nuclear testing. Consistent with the SSMP, the Advanced Hydrotest Facility (AHF) has been conceived to provide improved radiographic imaging with multiple axes and multiple time frames. The AHF would be used to better understand the evolutio… more

Date: March 1, 1999

Creator: Alford, O. J.; Barnes, P. D., Jr.; Chargin, A. K.; Dekin, W. D.; Hartouni, E. P.; Hockman, J. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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The scrounge-atron: a proton radiography demonstration accelerator

The Scrounge-atron is a concept that could provide a demonstration accelerator for proton radiography. As discussed here, the Scrounge-atron would be capable of providing a 20 GeV beam of ten pulses, 10{sup 11} protons each, spaced 250 ns apart. This beam could be delivered once every minute to a single-axis radiographic station centered at the BEEF facility of the Nevada Test Site. These parameters would be sufficient to demonstrate, in five years, the capabilities of a proton-based Advanced H… more

Date: December 18, 1998

Creator: Alford, O. J.; Barnes, P. D.; Chargin, A. K.; Hartouni, E. F.; Hockman, J. N.; Moore, T. L. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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The ADRIA project for high intensity radioactive beams production

A proposal of an accelerator complex (ADRIA) for the Laboratori Nazionali di Legnaro (LNL) is described in this report. The main components of the complex are a Heavy Ion Injection system and two rings, a Booster and a Decelerator, both with a maximum rigidity of 22.25 Tm, connected by a Transfer Line where exotic proposal has two main goals consisting in the isotopes are produced and selected. The proposal has two main goals consisting in the acceleration of stable ion species up to kinetic en… more

Date: January 1, 1992

Creator: Bisoffi, G.; Cavenago, M.; Dainelli, A.; Facco, A.; Fortuna, G.; Lombardi, A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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The ADRIA project for high intensity radioactive beams production

Date: December 31, 1992

Creator: Bisoffi, G.; Cavenago, M.; Dainelli, A.; Facco, A.; Fortuna, G.; Lombardi, A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Comparison of synchrotron and accumulator scenarios for a 5-MW Pulsed Spallation Neutron Source

This paper reports conceptual design studies of a site-independent 5 MW Pulsed Spallation Neutron Source (PSNS) conducted by an interdepartmental study group at Brookhaven National Laboratory. First, a scenario based on the use of a 600 MeV Linac followed by two fast cycling 3.6 GeV Synchrotrons was investigated. Then we studied an Accumulator with two options: (1) a 1.25 GeV normal conducting Linac followed by two Accumulator Rings, and (2) a 2.4 GeV superconducting Linac followed by a single … more

Date: July 1, 1996

Creator: Blumberg, L.; Luccio, A.; Ruggiero, A. G. & Steenberg, A. van

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Upgrading the AGS to 1 MW Proton Beam Power.

The Brookhaven Alternating Gradient Synchrotron (AGS) is a strong focusing accelerator that is used to accelerate protons and various heavy ion species to an equivalent proton energy of 29 GeV. At this energy the maximum intensity achieved is around 7 x 10{sup 13} protons per pulse. This corresponds to an average beam power of about 0.2 MW. Future programs in high-energy physics, as for instance a neutrino factory with the AGS as the proton driver [l], may require an upgrade of the AGS to an av… more

Date: June 18, 2001

Creator: Brennan, M. J.; Marneris, I.; Roser, T.; Ruggiero, A. G.; Trbojevic, D. & Zhang, S. Y.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Lattice insertions for POPAE

Four types of insertions are described for the six 200-m straight sections of POPAE. All have dispersion matched to zero. (1) Injection-ejection insertion--This has proper high-..beta.. values and phase advances for horizontal injection and vertical ejection. (2) Phase-adjust insertion--The phase advance in this insertion is adjustable over a range of approximately 100/sup 0/. (3) General-purpose insertion--The ..beta..* is adjustable from 2.5. to 200 m and the crossing angle is adjustable from… more

Date: January 1, 1977

Creator: Cho, Y.; Crosbie, E. A.; Diebold, R.; Johnson, D. E.; Ohnuma, S.; Ruggiero, A. G. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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The decapole correction scheme for RHIC (Relativistic Heavy Ion Collider)

The systematic decapole error in the arch dipoles is expected to be {vert bar} b{prime}{sub 4}{vert bar} {le} 0.7. However, the decapole tolerance has been determined to be {vert bar} b{prime}{sub 4}{vert bar} {le} 0.56, indicating the need for a decapole corrector system in RHIC. A two-family corrector system situated next to the focusing and defocusing quadrupoles can reduce the systematic decapole error by a factor of about two and will be provided. If additional correctors are situated in t… more

Date: January 1, 1990

Creator: Claus, J.; Dell, G. F.; Hahn, H.; Parzen, G.; Rhoades-Brown, M. J. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Beam position monitor analysis

A large proportion of devices used to interact with charged-particle beams in accelerator or storage rings can be classified as pick-ups or kickers. These devices extract information about the particle motion or affect a change in the motion. One device used frequently as pick-up or kicker is made with two little plates with one or more terminations per plate. In this paper the structure with one termination per plate is examined. The azimuthal dependence is taken into account in circular geome… more

Date: March 1, 1989

Creator: Di Massa, G. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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General analysis of beam position monitors

Date: January 1, 1989

Creator: Di Massa, G. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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RHIC Decapole Correction Magnet Requirements

No Description Available.

Date: August 17, 1987

Creator: F., Dell G.; Hahn, H.; Parzen, G. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Tolerances on Systematic Field Errors in RHIC Magnets

No Description Available.

Date: October 1, 1989

Creator: F., Dell G.; Hahn, H.; Parzen, G.; Rhoades-Brown, M. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Beam Position Monitor

This report addresses the accelerator physics technical note no. 11.

Date: October 1, 1988

Creator: G., Di Massa & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Mixing, staging, and phasing for a proton-driven wake field accelerator

This paper expands on a few important details of the Wakeatron concept. This is a device where electrons can be accelerated by the wake field of short intense proton bunches travelling along the axis of an rf structure. Specifically, we have examined the consequences of the longitudinal dynamics of both the electron and the proton bunches. Included were ''mixing'' in the proton bunches (crucial to the overall concept) and phase shifts (electron bunches relative to proton bunches) in the acceler… more

Date: January 1, 1987

Creator: Gai, W.; Ruggiero, A. G. & Simpson, J. D.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Precooler Lattice

No Description Available.

Date: February 12, 1981

Creator: Garren, A. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Ion production and trapping in electron rings

The electron beam in the VUV and X-ray rings of NSLS will ionize residual gas by collisions. Positive ions will be produced with low velocity, and will be attracted by the electron beam to the beam axis. If they are trapped in stable (transverse) orbits, they may accumulate, thereby increasing the ..nu../sub x,z/ of the individual electrons. Since the accumulated ions are unlikely to be of uniform density, a spread in ..nu../sub x,z/ will also occur. Should these effects be serious, it may be n… more

Date: August 1, 1979

Creator: Gluckstern, R. C. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Behaviour of Space-Charge Dominated Ion Beams in Storage Rings

The interparticle repulsion, or space charge, limits the density of charged particle beams that can be obtained in storage rings. In this report we study the effect of increasing the space charge, with an exact computation of the lattice parameters using SYNCH. Systematically increasing the ion density by decreasing the emittance with cooling techniques lowers the betatron tune, until the lower half-integral stopband resonance -- also induced by the beam is reached. In the simple model describe… more

Date: August 1, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Colliding Crystalline Beams

Crystalline Beams* are an ordered state of an ensemble of ions, circulating in a storage ring, with very small velocity fluctuations. They can be obtained from ordinary warm ion beams with the application of powerful cooling techniques (stochastic, electron, laser, ...). Depending on the focussing properties and dimensions of the storage ring, and on the ion beam density, several ground states are possible. All of them can be visualized as a bundle of n{sub s} symmetrically distributed, paralle… more

Date: June 1, 1995

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Crystalline beams: The horizontal zigzag. Informal report

The authors continue their investigation of {open_quotes}Crystalline Beams{close_quotes} in the ground state. In this paper they study the possibility of storing an intense beam of charged particles in a storage ring where the particles acquire a horizontal zigzag configuration. They define the equilibrium configuration, and examine the confinement and stability conditions. The problem of {open_quotes}shear{close_quotes} between particles circulating side by side caused by the curvature of the … more

Date: May 8, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Crystalline beams: The string

The authors study the possibility of storing a string of charged particles in a magnetic ring. They define the equilibrium configuration, and examine the confinement conditions. Subsequent, they derive the transfer matrix for motion through a drift, a quadrupole, and a dipole. They finally study the stability of the string as the space-charge force is increased.

Date: April 30, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Crystalline beams: The vertical zigzag

This note is the continuation of our comprehensive investigation of Crystalline Beams. After having determined the equations of motion and the conditions for the formation of the simplest configuration, i.e. the string, we study the possibility of storing an intense beam of charged particles in a storage ring where they form a vertical zigzag. We define the equilibrium configuration, and examine the confinement conditions. Subsequently, we derive the transfer matrix for motion through various e… more

Date: May 4, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Matrix formulation of the particle motion in crystalline beams

To investigate the properties of Crystalline Beams in their ground state, the equations of motion of a single ion and the envelope equations are derived. It is possible to express the status of motion with a set of transfer matrices associated to each of the magnet elements of the storage ring. By inspection of the eigenvalues of the total transfer matrix one then determines the onset of crystalline structures and the stability limits. An analytical approach is also possible, based on the estim… more

Date: August 1, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Particle Motion in Crystalline Beams

Studying the possibility of storing a low emittance (or ``cooled``) beam of charged particles in a storage ring, the authors are faced with the effect of space charge by which particles are repelled and influence each others` motion. The correct evaluation of the space-charge effects is important to determine the attainment and properties of Crystalline Beams, a phase transition which intense beams of ions can undergo when cooling is applied. In this report they derive the equations of motion o… more

Date: April 20, 1994

Creator: Haffmans, A. F.; Maletic, D. & Ruggiero, A. G.

Item Type: Report

Partner: UNT Libraries Government Documents Department