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T-Farm complex alarm upgrades

Description: The alarm and controls associated with the T, TX, and TY farms are located in the 242-T control room. The design data for replacement and upgrades of the alarm panels is in this document. This task was canceled previous to the 90% design review point.
Date: January 1, 1995
Creator: Roberts, J. B.
Partner: UNT Libraries Government Documents Department

Project W-058 monitor and control system logic

Description: This supporting document contains the printout of the control logic for the Project W-058 Monitor and Control System, as developed by Programmable Control Services, Inc. The logic is arranged in five appendices, one for each programmable logic controller console.
Date: May 12, 1999
Creator: ROBERTS, J.B.
Partner: UNT Libraries Government Documents Department

High-energy physics. Progress report, March 1, 1982-February 28, 1983

Description: Considerable progress has been made in high-energy physics research on several fronts during the present contract year. Analysis of the data from ZGS polarized beam experiments E-460 and E-462 has continued and is nearing completion. This, along with our data from LAMPF E-504/505, will have considerable bearing on the question of dibaryon resonances. Work has continued on the project to accelerate polarized-proton beams in the Brookhaven AGS. One of our contributions to this project, the 200-MeV polarimeter, will be completed, calibrated, and installed in the AGS LINAC during this contract year. The combined proposal E-704 for the first-round polarized-beam experiment at FNAL was approved and an agreement was reached among the various collaborators and submitted to the laboratory. The first run of the hadron-jet-calorimeter experiment, FNAL E-609, was completed during this contract year. Data analysis is underway which will constitute three Ph.D. theses for Rice students. We have also investigated additional future directions for the program, such as neutrino oscillation studies, high energy e-p collisions, underground detectors, and experiments at LAMPF II.
Date: October 1, 1982
Creator: Phillips, G. C. & Roberts, J. B.
Partner: UNT Libraries Government Documents Department

Dynamic quality assurance/quality control (QA/QC) program to maximize the use of on-site measurement

Description: The use of on-site mobile laboratories at Los Alamos National Laboratory (LANL) has increased within the last year to accommodate the diverse analytical requirements of demands for the Environmental Restoration Project (ERP). The purpose of the mobile laboratory is to provide sample results with the appropriate QC components within a near real time (i.e. < 8 hours) to aid in a real time decision process such as determining the extent of contamination and/or where to focus the sampling efforts. To meet the data quality objectives (DQOS) of ERP, a flexible QA/QC program needs to exist. By developing a QA/QC program containing the capability to measure extraction efficiency and instrument sensitivity and by participating in the DQO process, the appropriate QC can easily be tailored to provide quick and inexpensive analytical data while still meeting the project requirements. An QA/QC program, consisting of both static and dynamic elements, can be tailored to meet the ERP objectives.
Date: March 1, 1996
Creator: Kelly, L.A.; Roberts, J.B.; Swanson, A.L. & Canavan, H.E.
Partner: UNT Libraries Government Documents Department

High energy. Progress report, March 1, 1992--February 28, 1997

Description: The Bonner Lab High Energy Group at Rice University has major hardware and software design and construction responsibilities in three of the flagship experiments of US High Energy Physics: D0, CMS, and KTeV. These commitments were undertaken after managing boards of the collaborations had evaluated the unique capabilities that Bonner Lab has to offer. Although fiscal constraints prohibited their participation in the final year of the SMC experiment (1996) on the spin dependent structure functions of nucleons, they played a major role there since it was proposed in 1988. The new results from the SMC data taken in previous years continue to generate a buzz of theoretical activity--and to increase understanding of the nucleon structure functions and their behavior as a function of Q{sup 2} and x. They have also spawned large new experimental spin physics programs at HERA and at RHIC that ultimately will provide answers to these fundamental questions. This is a direct result of the unprecedented precision and kinematic range of the SMC results. Such precision would not have been possible without the improvement in the knowledge of the muon beam polarization using the Rice-designed beam polarimeter. In D0 Bonner Lab has been active in data taking, data analysis, upgrade design, and upgrade construction projects. In CMS they are responsible for the design and construction of the trigger electronics for one of the crucial subsystems: the end cap muon detectors. Other responsibilities are fully expected as the US commitment to LHC projects becomes clearer. The technical capabilities are well matched to the enormous challenges posed by the physics measurements being contemplated for the CMS detector. KTeV will be taking data shortly. Rice made major contributions to the construction and commissioning of this experiment. The long list of publications and presentations during the past five years attests to ...
Date: September 1, 1996
Creator: Bonner, B.E. & Roberts, J.B. Jr.
Partner: UNT Libraries Government Documents Department

Reduction of radioactivity in oils prior to PCB analysis: A new use for solid phase extraction cartridges

Description: Radioactively contaminated oils represent a significant waste problem throughout the Department of Energy complex (DOE). From contaminated oils in glove box facilities at Los Alamos National Laboratory (LANL) through the 1200 kg of oil waste at Paducah to an estimated 46,000 kg of contaminated oily water at Lawrence Livermore, contaminated oil exists at all of the DOE facilities. Dilution is the primary mechanism for reducing the radionuclides to safe handling levels prior to analysis. However, this approach requires contamination of instrumentation as well as increased limits of quantitation. Often, the dilutions required to maintain As Low As Reasonably Achievable (ALARA) guidelines result in limits of quantitation which are above the regulatory limits for waste acceptance. In order to maintain ALARA guidelines while obtaining the lowest possible detection limits, the Organic Analysis Group at Los Alamos National Laboratory has established a cleanup technique for oils suspected of being contaminated with polychlorinated biphenyls. The technique uses a 0.02 {mu}m disposable filter in conjunction with Florisil SPE cartridges. Using this technique we have demonstrated radionuclide reductions ranging from 60 to 95+% for gross alpha, beta, and gamma while maintaining analyte and surrogate recoveries well within established guidelines. Further advantages of this technique include its simplicity, the generation of a minimum of secondary waste materials, and the potential for field use. Implications of this analytical technique as well as applications to other analytes of interest are currently being explored.
Date: March 1995
Creator: Monagle, M.; Hakonson, K. M. & Roberts, J. B.
Partner: UNT Libraries Government Documents Department

Comparison of Mobile Laboratory screening method for the detection of high explosives with EPA SW 846 method 8330

Description: The current EPA SW-846 method for High Explosives (HE) analysis is not well suited to on-site analytical work. The method in general is too complex and time dependent to function well in a quick turn around mode. The Mobile Chemical Analytical Laboratory project at Los Alamos National Laboratory (LANL) has used a modified analytical method to generate quick turn around data to address Department of Transportation (DOT) shipping requirements, and with appropriate modifications to the QA/QC oversight of the method is well suited to deliver high quality quantitative data.
Date: March 1, 1996
Creator: Swanson, A.L.; Roberts, J.B.; Canavan, H.E. & Kelly, L.A.
Partner: UNT Libraries Government Documents Department

(High energy physics)

Description: An intense analysis effort on the data we obtained in a seven month run on E704 last year has produced a flood of new results on polarization effects in particle production at 200 GeV/c. We are fortunate to be able to report in detail on those results. Our other Fermilab experiment, E683 (photoproduction of jets) has been delayed an unbelievable amount of time by Fermilab schedule slippages. It was scheduled and ready for beam two years ago As this report is being written, we have been running for two months and are expecting four months of production data taking. In this report we show some of our preliminary results. In addition we are near the end of a six month run on our CERN experiment, NA47 (SMC) which will measure the spin dependent structure functions for the proton and neutron. It is with a sense of relief, mixed with pride, that we report that all the equipment which we constructed for that experiment is currently working as designed. The random coincidence of accelerator schedules has left us slightly dazed, but all experiments are getting done and analyzed in a timely fashion. As members of the Solenoidal Detector Collaboration, we have been preparing for the only currently approved experiment at the SSC. Here we report on our scintillating fiber tracker design and simulation activities. In addition we report the results of our investigation of the detector response to heavy Z particles. Since our last report, we have joined the D0 collaboration with the primary aim of contributing to the D0 upgrade over the next few years. It is also important for us to gain experience in collider physics during the period leading up to the SDC turn-on.
Date: September 1, 1991
Creator: Bonner, B.E. & Roberts, J.B. Jr.
Partner: UNT Libraries Government Documents Department

High energy. Progress report, March 1, 1993--February 28, 1994

Description: We report here on progress made for the period from December 1, 1992 (the date of submission of our latest progress report) to November 30, 1993 for DOE Grant No. DE-FG05-92ER40717. The new results from the SMC experiment have generated a buzz of theoretical activity. Our involvement with the D0 experiment and the upgrade has increased substantially during the past two years so that we now have six people heavily committed and making what can only be described as a large and disproportionate impact on D0 physics output. Some of the new developments made here at Rice in Neural Network and Probability Density Estimation techniques for data analysis promise to have applications both in D0 and beyond. We report a load of new results from our high-p{sub t} jet photoproduction experiment. In addition we have been working on KTeV, albeit without having adequate funding for this work. Progress on the theoretical front has been nothing short of amazing, as is reported herein. In a grand lecture tour during this sabbatical year, Paul Stevenson has already reported his breakthroughs at ten institutions, including CERN, Oxford, Cambridge, Rutherford Lab, Imperial College, and Durham University. The group at Rice University has had an exceptionally productive year and we are justifiably proud of the progress which is reported here.
Date: December 1, 1993
Creator: Bonner, B. E. & Roberts, J. B. Jr.
Partner: UNT Libraries Government Documents Department

200-GeV proton-proton elastic scattering at high transverse momentum

Description: This is a proposal to study p-p elastic scattering at the highest possible P{sub {perpendicular}}{sup 2} at NAL, using a CH{sub 2} or H{sub 2} target placed directly in the extracted beam and a double arm spectrometer. We expect to be able to set an upper limit at the level d{sigma}/dt/d{sigma}/dt{sub t=0} {approx} 10{sup -14}. This would be sufficient to determine if there are exactly three regions in the p-p interaction with considerable precision.
Date: June 1, 1970
Creator: Ratner, L.G.; /Argonne; Krisch, A.D.; Roberts, J.B.; Terwilliger, K.M. & U., /Michigan
Partner: UNT Libraries Government Documents Department

AGS silicon gold collisions measured in the E-810 TPC (Time Projection Chamber)

Description: The tracking detector of AGS Experiment 810 is a three-piece Time Projection Chamber (TPC) intended to measure all charged tracks in the forward hemisphere of the nucleon-nucleon center of mass system, i.e. forward of an angle of about 20 degrees in the lab. Each module of the TPC contains twelve rows of short anode wires which give 3-D space points on each track, but no dE/dx information useable for particle identification. The TPC was operated in a beam of silicon ions at the end of June 1989 and this talk reports the results of analysis of the data taken with a thin gold target in that run. We have gathered a similar amount of data from thin copper and silicon targets, the analysis of which is in a less advanced state. The results of our investigation of the neutral strange particle decays appear in a separate contribution by Al Saulys. This paper presents the current state of the analysis of the charged tracks from the silicon gold collisions. 1 ref., 15 figs.
Date: March 26, 1990
Creator: Bonner, B. E.; Buchanan, J. A.; Chiou, C. N.; Clement, J. M.; Corcoran, M. D.; Kruk, J. W. et al.
Partner: UNT Libraries Government Documents Department

Behavior of TPC`s in a high particle flux environment

Description: TPC`s (Time Projection Chamber) used in E-810 at the AGS (Alternating Gradient Synchrotron) were exposed to fluxes equivalent to more than 10{sup 7} minimum ionizing particles per second to find if such high fluxes cause gain changes or distortions of the electric field. Initial results of these and other tests are presented and the consequences for the RHIC (Relativistic Heavy Ion Collider) TPC-based experiments are discussed.
Date: December 13, 1991
Creator: Etkin, A.; Eisemann, S. E.; Foley, K. J.; Hackenburg, R. W.; Longacre, R. S.; Love, W. A. et al.
Partner: UNT Libraries Government Documents Department

Development and tests of an anode readout TPC with high track separability for large solid angle relativistic ion experiments

Description: We have developed, constructed and tested an anode readout TPC with high track separability which is suitable for large solid angle relativistic ion experiments. The readout via rows of short anode wires parallel to the beam has been found in tests to allow two-track separability of approx.2-3 mm. The efficiency of track reconstruction for events from a target, detected inside the MPS 5 KG magnet, is estimated to be >90% for events made by incident protons and pions. 15 GeV/c x A Si ion beams at a rate of approx.25 K per AGS pulse were permitted to course through the chamber and did not lead to any problems. When the gain was reduced to simulate the total output of a minimum ionizing particle, many Si ion tracks were also detected simultaneously with high efficiency. The resolution along the drift direction (parallel to the MPS magnetic field and perpendicular to the beam direction) was <1 mm and the resolution along the other direction /perpendicular/ to the beam direction was <1 mm also. 3 refs., 5 figs.
Date: July 18, 1988
Creator: Lindenbaum, S.J.; Foley, K.J.; Eiseman, S.E.; Etkin, A.; Hackenburg, R.W.; Longacre, R.S. et al.
Partner: UNT Libraries Government Documents Department

Comparison of PWA results of K{sup +}K{sup o}{sub s} {pi}{sup {minus}} final states produced in 8 GeV/c K{sup {minus}}p, {pi}{sup {minus}} p and {bar p}p interactions

Description: We have performed partial-wave analyses of the K{sup +}K{sup o}s {pi}{sup {minus}} system produced in the reactions K{sup {minus}}p {yields} K{sup +}K{sup o}s{pi}{sup {minus}}, {Lambda}/{Sigma}, {pi}{sup {minus}}p {yields} K{sup +}K{sup o}s {pi}{sup {minus}}n and {bar p}p {yields} K{sup +}K{sup o}s{pi}{sup {minus}} X at 8 GeV/c in substantially the same apparatus. We present and compare the results of the analysis of the three reactions in the mass range 1.24 GeV/c{sup 2} < M(KK{pi}) <1.56 GeV/c{sup 2}. In all three reactions the J{sup PG} = O{minus_plus}, 1{plus_minus} and 1{sup ++} waves are the most important. A strong f{sub 1}(1285) signal is evident in the {pi} and {bar p} beam data sets but not in the K data. There is evidence of {eta}(l280) production, especially in the n and 0 beam data. We find evidence of two O{sup {minus_plus}} states in the 1400 MeV/c{sup 2} mass region, but no compelling case for a 1{sup ++} resonance in this region. Finally, the 1{sup {plus_minus}} wave in the K beam data is consistent with an h` state below the K*K threshold.
Date: December 31, 1991
Creator: Bar-Yam, Z.; Dowd, J.; Kern, W.; King, E.; Rulon, P.; Blessing, S. K. et al.
Partner: UNT Libraries Government Documents Department

Preliminary partial-wave analysis of the K sup + K sup 0 sub s. pi. sup minus system produced in 8 GeV/c K sup minus p interactions

Description: We have performed a partial-wave analysis of the K{sup +}K{sup 0}{sub s}{pi}{minus} system produced in the reaction K{sup {minus}}p {yields} K{sup +}K{sup 0}{sub s}{pi}{sup {minus}} {Lambda}/{Sigma} at 8 GeV/c. We present results of a preliminary analysis of approximately 2000 events in the K{sup {minus}}K{pi} mass range 1.24--1.64 GeV, with 0.0 < {minus}t < 1.4 GeV{sup 2}. In the 1.28 GeV mass region, we observe a small J{sup PG} = 0{sup {minus plus}} contribution but little indication of a 1{sup ++} wave. We observe a large enhancement of events at the threshold of KK* production. Above this threshold the J{sup PG} = 1{sup {plus minus}}, 1{sup ++} and 0{sup {minus plus}} waves all contribute, and we see evidence for a 1{sup {plus minus}} resonance below the KK* threshold. 7 refs., 9 figs., 1 tab.
Date: Autumn 1990
Creator: Dowd, J.; King, E.; Bar-Yam, Z.; Kern, W.; Blessing, S. K.; Boehnlein, A. et al.
Partner: UNT Libraries Government Documents Department

Recent developments on the STAR detector system at RHIC

Description: The STAR detector system is designed to provide tracking, momentum analysis and particle identification for many of the mid-rapidity charged particles produced in collisions at the RHIC collider. A silicon vertex detector (SVT) provides three layers of tracking near the interaction point. This is followed by the main time projection chamber (TPC), which continues tracking out to 200 cm radial distance from the interaction region. The detector design also includes an electromagnetic calorimeter, various trigger detectors, and radial TPCs in the forward region. The entire system is enclosed in a 0.5 T solenoid magnet. A progress report is given for the various components of the STAR detector system. The authors report on the recent developments in the detector proto-typing and construction, with an emphasis on the main TPC, recent TPC cosmic ray testing and shipping to Brookhaven National Laboratory.
Date: December 1997
Creator: Argonne National Laboratory
Partner: UNT Libraries Government Documents Department

The STAR Time Project Chamber

Description: Paper presented at the International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (1999) reporting on the progress of the STAR experiment, a complex system of many detector sub-systems which have been installed in a large solenoidal magnet at the Relativistic Heavy Ion Collider (RHIC).
Date: May 10, 1999
Creator: Argonne National Laboratory
Partner: UNT Libraries Government Documents Department