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in creator/contributor: "Magill, S."

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Argonne Plasma Engineering Experiment (APEX) tokamak

This paper describes the design and operation of the Argonne Plasma Engineering Experiment (APEX) tokamak. This machine was designed to provide a high performance plasma at a minimum cost, thus combining, to some extent, the high current densities, long pulse duration, and flexibility of operation of large, multipurpose machines, with the low cost of small machines. The APEX tokamak was designed specifically for studies in plasma-wall interactions and rf heating and current drive, and some trad… more

Date: January 1, 1981

Creator: Norem, J. H.; Balka, L. J.; Kulovitz, E. C.; Magill, S. R.; McGhee, D. G.; Moretti, A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Argonne Plasma Engineering Experiment (APEX) Tokamak

The Argonne Plasma Engineering Experiment (APEX) Tokamak was designed to provide hot plasmas for reactor-relevant experiments with rf heating (current drive) and plasma wall experiments, principally in-situ low-Z wall coating and maintenance. The device, sized to produce energetic plasmas at minimum cost, is small (R = 51 cm, r = 15 cm) but capable of high currents (100 kA) and long pulse durations (100 ms). A design using an iron central core with no return legs, pure tension tapewound toroida… more

Date: March 1, 1981

Creator: Norem, J. H.; Balka, L. J.; Kulovitz, E. E.; Magill, S. R.; McGhee, D. G.; Moretti, A. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Deep Inelastic Scattering results from the first year of HERA operation

The first year of operation of the HERA electron-proton collider has resulted in Deep Inelastic Scattering (DIS) Physics results from both the H1 and ZEUS experiments. Reported here are the H1 and ZEUS measurements of the proton structure function F{sub 2} at higher Q{sup 2} and lower x than previously reported from fixed target experiments. Also included are the results of QCD studies on hadronic final states and jets, and the observation of high Q{sup 2} charged current events from both exper… more

Date: December 31, 1993

Creator: Magill, S. R.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Measurement of gas bremsstrahlung from the insertion device beamlines of the advanced photon source

High energy electron storage rings generate energetic bremsstrahlung photons through radiative interaction of the electrons (or positrons) with the residual gas molecules inside the storage ring. The resulting radiation exits at an average emittance angle of (m{sub 0}c{sub 2}/E) radian with respect to the electron beam path, where m{sub 0}c{sup 2} is the rest mass of E the electron and E its kinetic energy. Thus, at straight sections of the storage rings, moving electrons will produce a narrow … more

Date: March 1, 1997

Creator: Pisharody, M.; Job, P.K. & Magill, S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

High Energy Physics division semiannual report of research activities, January 1, 1998--June 30, 1998.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of January 1, 1998 through June 30, 1998. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: March 9, 1999

Creator: Ayres, D. S.; Berger, E. L.; Blair, R.; Bodwin, G. T.; Drake, G.; Goodman, M. C. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Summary : working group on QCD and strong interactions.

In this summary of the considerations of the QCD working group at Snowmass 2001, the roles of quantum chromodynamics in the Standard Model and in the search for new physics are reviewed, with emphasis on frontier areas in the field. The authors discuss the importance of, and prospects for, precision QCD in perturbative and lattice calculations. They describe new ideas in the analysis of parton distribution functions and jet structure, and review progress in small-x and in polarization experimen… more

Date: February 4, 2002

Creator: Berger, E. L.; Magill, S. R.; Sarcevic, I.; Jalilian-Marian, J.; Kilgore, W. B.; Kulesza, A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Snowmass 2001 : jet energy flow project.

Conventional cone jet algorithms arose from heuristic considerations of LO hard scattering coupled to independent showering. These algorithms implicitly assume that the final states of individual events can be mapped onto a unique set of jets that are in turn associated with a unique set of underlying hard scattering partons. Thus each final state hadron is assigned to a unique underlying parton. The Jet Energy Flow (JEF) analysis described here does not make such assumptions. The final states … more

Date: March 25, 2002

Creator: Berger, C. F.; L., Berger. E.; Bhat, P. C.; Butterworth, J. M.; Ellis, S. D.; Flaugher, B. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

High Energy Physics Division semiannual report of research activities, January 1, 2004 - June 30, 2004.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of January 1 through June 30, 2004. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: February 21, 2005

Creator: Spinka, H. M.; Nodulman, L. J.; Goodman, M. C.; Repond, J.; Ayres, D. S.; Proudfoot, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

High Energy Physics Division semiannual report of research activities : July 1, 2004 - December 31, 2004.

This report describes the research conducted in the High Energy Physics Division of Argonne National Laboratory during the period of July 1 through December 31, 2004. Topics covered here include experimental and theoretical particle physics, advanced accelerator physics, detector development, and experimental facilities research. Lists of Division publications and colloquia are included.

Date: June 3, 2005

Creator: Nodulman, L.; Repond, J.; Ayres, D. S.; Proudfoot, J.; Stanek, R.; Schlereth, J. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Intelligent Detector Design

At a future e+e- linear collider, precision measurements of jets will be required in order to understand physics at and beyond the electroweak scale. Calorimetry will be used with other detectors in an optimal way to reconstruct particle 4-vectors with unprecedented precision. This Particle Flow Algorithm (PFA) approach is seen as the best way to achieve particle mass resolutions from dijet measurements in the range of {approx} 30%/{radical}E, resulting in innovative methods for choosing the ca… more

Date: February 13, 2007

Creator: Graf, N.; Cassell, R.; Johnson, T.; McCormick, J.; Magill, S. & Kuhlmann, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department