2010 CELL AND MOLECULAR FUNGAL BIOLOGY GORDON RESEARCH CONFERENCE, JUNE 13-18, 2010 (open access)

2010 CELL AND MOLECULAR FUNGAL BIOLOGY GORDON RESEARCH CONFERENCE, JUNE 13-18, 2010

The Cellular and Molecular Fungal Biology Conference provides a forum for presentation of the latest advances in fungal research with an emphasis on filamentous fungi. This open-registration scientific meeting brings together the leading scientists from academia, government and industry to discuss current research results and future directions at Holderness School, an outstanding venue for scientific interaction. A key objective of the conference is to foster interaction among scientists working on model fungi such as Saccharomyces cerevisiae, Schizosaccharomyces pombe, Neurospora crassa and Aspergillus nidulans and scientists working on a variety of filamentous fungi whose laboratory tractability is often inversely proportional to their medical, industrial or ecological importance. Sessions will be devoted to Systems Biology, Fungi and Cellulosic Biomass, Small RNAs, Population Genomics, Symbioses, Pathogenesis, Membrane Trafficking and Polarity, and Cytoskeleton and Motors. A session will also be devoted to hot topics picked from abstracts. The CMFB conference provides a unique opportunity to examine the breadth of fungal biology in a small meeting format that encourages in-depth discussion among the attendees.
Date: June 18, 2010
Creator: Momany, Michelle
System: The UNT Digital Library
2010 CORRELATED ELECTRON SYSTEMS GORDON RESEARCH CONFERENCE, JUNE 13-18, 2010 For (open access)

2010 CORRELATED ELECTRON SYSTEMS GORDON RESEARCH CONFERENCE, JUNE 13-18, 2010 For

The 2010 Gordon Conference on Correlated Electron Systems will present cutting-edge research on emergent properties arising from strong electronic correlations. The Conference will feature a wide range of topics, such as the role of topology in condensed matter systems, quantum Hall interferometry and non-Abelian statistics, quantum criticality, metal-insulator transition, quantum effects in conductivity, Dirac quasiparticles, and superconductivity in cuprates and pnictides. In addition, we are reserving two sessions for new developments in this field that may arise in the coming year. The Conference will bring together a collection of investigators who are at the forefront of their field, and will provide opportunities for junior scientists and graduate students to present their work in poster format and exchange ideas with leaders in the field. We intend to have talks by established leaders in the field and also by young researchers who have made seminal contributions to various aspects of correlated electron physics, The collegial atmosphere of this Conference, with programmed discussion sessions as well as opportunities for informal gatherings in the afternoons and evenings, provides an avenue for scientists from different disciplines to brainstorm and promotes cross-disciplinary collaborations in the various research areas represented.
Date: June 18, 2010
Creator: Basov, Dmitri
System: The UNT Digital Library
2nd Feasibility Study of a Muon Storage Ring Neutrino Factory (open access)

2nd Feasibility Study of a Muon Storage Ring Neutrino Factory

The design and simulated performance of a second feasibility study are presented. The efficiency of producing muons is {approx} 0.17 {micro}/p with 24 GeV protons. This study was sponsored by the BNL Director, with BNL site specific driver and layout. It was a follow on to the First Study[2] sponsored by the Fermilab Director, with Fermilab site specific driver and layout, and was the main US collaboration conceptual effort during the past year. Other studies, and technical work by the collaboration is reported in other papers.
Date: June 18, 2001
Creator: Ozaki, S.; Palmer, R. B. & Zisman, M. S.
System: The UNT Digital Library
Accelerator Physics Issues for Future Electron Ion Colliders (open access)

Accelerator Physics Issues for Future Electron Ion Colliders

Interest continues to grow in the physics of collisions between electrons and heavy ions, and between polarized electrons and polarized protons [1,2,3]. Table 1 compares the parameters of some machines under discussion. DESY has begun to explore the possibility of upgrading the existing HERA-p ring to store heavy ions, in order to collide them with electrons (or positrons) in the HERA-e ring, or from TESLA [4]. An upgrade to store polarized protons in the HERA-p ring is also under discussion [1]. BNL is considering adding polarized electrons to the RHIC repertoire, which already includes heavy and light ions, and polarized protons. The authors of this paper have made a first pass analysis of this ''eRHIC'' possibility [5]. MIT-BATES is also considering electron ion collider designs [6].
Date: June 18, 2001
Creator: Peggs, S.; Ben-Zvi, Ilan; Kewisch, J. & Murphy, J.
System: The UNT Digital Library
After-burning of nitropenta products in a calorimeter (open access)

After-burning of nitropenta products in a calorimeter

Explored here are the ''after-burning'' effects for explosions of Nitropenta (NP) charges in air. Detonation of the charge transforms the solid explosive ( C HNO 5 8412 , also known as PETN) into gaseous products that are rich in carbon and CO, which subsequently act as a fuel. When these hot ({approximately}3500 K) gases mix with air, rapid combustion (after-burning) takes place. The dynamics of this exothermic process was studied in ''pressure calorimeter'' experiments performed at EMI.
Date: June 18, 1999
Creator: Kuhl, A L; Neuwald, P & Reichenbach, H
System: The UNT Digital Library
All-Ferrite RHIC Injection Kicker (open access)

All-Ferrite RHIC Injection Kicker

Ion beams are transferred from the AGS into RHIC in boxcar fashion as single bunches. The nominal design assumes 60 bunches per ring but increasing the number of bunches to gain luminosity is possible, thereby requiring injection kickers with a shorter rise time. The original injection system consists of traveling-wave dielectric loaded kicker magnets and a Blumlein pulser with a rise time adequate for the present operation. Voltage breakdown in the dielectric kickers suggested the use of all-ferrite magnets. In order to minimize the conversion cost, the design of the all-ferrite kicker uses the same components as the dielectric loaded units. The all-ferrite kickers showed in bench measured good breakdown properties and a current rise time of < 50 ns. A prototype kicker has been installed in the blue ring and was tested with beam. Beam measurements indicate suitability of all-ferrite kicker magnets for upgraded operation.
Date: June 18, 2001
Creator: Hahn, H.; Fischer, W.; Ptitsyn, V. I. & Tuozzolo, J. E.
System: The UNT Digital Library
An Alternative Approach to Low Frequency Rf Accelerators and Power Sources. (open access)

An Alternative Approach to Low Frequency Rf Accelerators and Power Sources.

The Muon Collider and Neutrino Factory projects require low frequency rf cavities because the size and emittance of the muon beam is much larger than is usual for electron or proton beams. The range of 30 MHz to 200 MHz is of special interest. However, the size of an accelerator with low frequency will be impractically large if it is simply scaled up from usual designs. In addition, to get very high peak power in this range is difficult. Presented in this paper is an alternative structure that employs a quasi-lumped inductance that can significantly reduce the transverse size while keeping high gradient. Also addressed is a power compression scheme with a thyratron. This gives a possible solution to provide very high peak power.
Date: June 18, 2001
Creator: Zhao, Y.
System: The UNT Digital Library
An Analysis of the NEXAFS Spectra of a molecular crystal: alpha-Glycine (open access)

An Analysis of the NEXAFS Spectra of a molecular crystal: alpha-Glycine

The nitrogen K-edge Near Edge X-ray Absorption Fine Structure (NEXAFS) spectrum of alpha-crystalline glycine has been calculated for temperatures ranging from 0 K to 450 K. Significant temperature dependent spectral changes are predicted. The calculated room temperature spectrum is in good agreement with experiment. At high temperatures, molecular motions strongly influence the spectrum, as any unique spectrum from an individual instantaneous configuration does not resemble the experimental result or the average calculated spectrum; complex coupled motions in this prototypical molecular crystal underlie the observed spectral changes.
Date: June 18, 2010
Creator: Schwartz, Craig P.; Saykally, Richard J. & Prendergast, David
System: The UNT Digital Library
ANALYTIC PROPERTIES OF THE LONGITUDINAL BEAM TRANSFER FUNCTION. (open access)

ANALYTIC PROPERTIES OF THE LONGITUDINAL BEAM TRANSFER FUNCTION.

The frequency dependence of the longitudinal beam transfer function (BTF) in a storage ring, when expressed in a basis of azimuthal harmonics of the line density, is the Fourier transform of a causal function that depends on the radio-frequency potential well in which the bunch moves. The effect of all synchrotron harmonics are included in this function, which is derived from Krinsky and Wang's expression for the BTF expressed in the same basis (S. Krinsky and J.-M. Wang, Part. Accel. 17, 109-139 (1985)). Analytic properties of the terms of the BTF expressed in a series of synchrotron harmonics, which are approximately Shaposhnikova's BTF matrix elements (E. Shaposhnikova, CERN Report No. SL-94-19-RF (1994)), are studied through the large-argument asymptotics of corresponding causal functions.
Date: June 18, 2001
Creator: TOWNE, N.
System: The UNT Digital Library
Assessment of health benefits from controlling air pollution in Shanghai, China. (open access)

Assessment of health benefits from controlling air pollution in Shanghai, China.

The large urban centers of the industrializing countries of the world are experiencing severe air quality problems as their demands for energy increase faster than their ability to afford strong environmental protection. This situation is particularly true in the fast-growing part of Asia, where coal often provides the fuel for power generation and industrial development and where the transportation sector grows unchecked. This paper describes the development of an integrated assessment of urban air quality and mitigation options for the city of Shanghai, China. First, a sector-specific, gridded inventory of emissions of SO{sub 2}, NO{sub x}, and particulate matter (PM) is developed. PM is divided into three size categories (TSP, PM{sub 10}, and PM{sub 2.5}) and split into carbonaceous and mineral classes. The URBAT model, a non-steady-state Lagrangian puff model, and related techniques are used to determine the spatial distribution of ambient concentrations of primary and secondary pollutant species. Damage functions are developed to determine the effects of these levels on human health in the greater Shanghai area. Two control scenarios are developed (for power generation and industry), and their effects on emissions of each species are estimated. The health benefits of the control measures are determined, and their relative …
Date: June 18, 2002
Creator: Chang, Y.-S.; Streets, D. G.; Tsao, C. L.; Li, J.; Guttikunda, S. & Carmichael, G. R.
System: The UNT Digital Library
ATA probe beam experiment (open access)

ATA probe beam experiment

The philosophy of these tests is to measure the motion of a low current, small diameter electron beam in the accelerator before running high current. By using low current, we can study particle motion in the applied fields without any extra complications associated with the self-forces of high currents. With the steering magnets off, we have measured the transverse drift of the probe beam. Also, we have used the probe beam to optimize the current in the steering magnets to compensate for the drift. There have been concurrent efforts to locate the source of the error field which is presumed to cause the drift. So far, the source has not been established but the search is continuing.
Date: June 18, 1984
Creator: Lauer, E. J.; Chong, Y. P.; Prono, D. S. & Weir, J. T.
System: The UNT Digital Library
The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra (open access)

The Atacama Cosmology Telescope: Cosmological Parameters from the 2008 Power Spectra

None
Date: June 18, 2013
Creator: Dunkley, J.; Hlozek, R.; Sievers, J.; Acquaviva, V.; Ade, P. A. R.; Aguirre, P. et al.
System: The UNT Digital Library
Authorization Agreements at the INEEL (open access)

Authorization Agreements at the INEEL

This paper provides a description of the INEEL Authorization Agreement Program and a discussion of the process used to prepare and approve the 21 Authorization Agreements.
Date: June 18, 1999
Creator: Cole, N. E.
System: The UNT Digital Library
B Physics at CDF (open access)

B Physics at CDF

Due to the large b{bar b} cross section at 1.96 TeV p - {bar p} collisions, the Tevatron is currently the most copious source of B hadrons. Recent detector upgrades for Run II have made these more accessible, allowing for a wide range of B and C/P physics with B hadrons of all flavours. In this paper we present B-physics results, and, using the versatile hadronic Two Track Trigger, a search for {Xi}(1860), from up to 240 pb{sup -1} of data.
Date: June 18, 2004
Creator: Rademacker, J.
System: The UNT Digital Library
B \to Mu Mu And B \to Tau Nu Decays (open access)

B \to Mu Mu And B \to Tau Nu Decays

None
Date: June 18, 2013
Creator: Scuri, Fabrizio
System: The UNT Digital Library
Backscatter Absorption Gas Imaging of VOC's and its use in Petrochemical Leak Detection (open access)

Backscatter Absorption Gas Imaging of VOC's and its use in Petrochemical Leak Detection

None
Date: June 18, 2000
Creator: Goers, Uta-Barbara; Kulp, Thomas J. & McRae, Thomas G.
System: The UNT Digital Library
Baryonic B Decays at BaBar B0 \to Anti-Lambda P Pi- Anti-B0 \to Lambda(C)+ Anti-P K- Pi+ (open access)

Baryonic B Decays at BaBar B0 \to Anti-Lambda P Pi- Anti-B0 \to Lambda(C)+ Anti-P K- Pi+

None
Date: June 18, 2013
Creator: Ebert, Marcus
System: The UNT Digital Library
Baseline Configuration of the Cryogenic System for the International Linear Collider (open access)

Baseline Configuration of the Cryogenic System for the International Linear Collider

The paper discusses the main constraints and boundary conditions and describes the baseline configuration of the International Linear Collider (ILC) cryogenic system. The cryogenic layout, architecture and the cooling principle are presented. The paper addresses a plan for study and development required to demonstrate and improve the performance, to reduce cost and to attain the desired reliability.
Date: June 18, 2007
Creator: Casas-Cubillos, J.; Claudet, S.; Parma, V.; Riddone, G.; Serio, L.; Tavian, L. et al.
System: The UNT Digital Library
A Baseline Design for PEP-X: An Ultra-Low Emittance Storage Ring (open access)

A Baseline Design for PEP-X: An Ultra-Low Emittance Storage Ring

None
Date: June 18, 2013
Creator: Cai, Yunhai; Bane, Karl; Bertsche, Kirk; Chao, Alex; Hettel, Robert; Huang, Xiaobiao et al.
System: The UNT Digital Library
Beam-Based Measurements of Persistent Current Decay in Rhic. (open access)

Beam-Based Measurements of Persistent Current Decay in Rhic.

The two RHIC rings are equipped with superconducting dipole magnets. At injection, induced persistent currents in these magnets lead to a sextupole component. As the persistent currents decay with time, the horizontal and vertical chromaticities change. From magnet measurements of persistent current decays, chromaticity changes in the machine are estimated and compared with chromaticity measurements.
Date: June 18, 2001
Creator: Fischer, W.; Jain, A. & Tepikian, S.
System: The UNT Digital Library
Beam Coupling Phenomena in Fast Kicker Systems. (open access)

Beam Coupling Phenomena in Fast Kicker Systems.

Beam coupling phenomena have been observed in most fast kicker systems through out Brookhaven Collider-Accelerator complex. With ever-higher beam intensity, the signature of the beam becomes increasingly recognizable. The beam coupling at high intensity produced additional heat dissipation in high voltage modulator, thyratron grids, thyratron driver circuit sufficient to damage some components, and causes trigger instability. In this paper, we will present our observations, basic coupling mode analysis, relevance to the magnet structures, issues related to the existing high voltage modulators, and considerations of the future design of the fast kicker systems.
Date: June 18, 2001
Creator: Zhang, W.; Ahrens, L. A.; Glenn, J.; Sandberg, J. & Tsoupas, N.
System: The UNT Digital Library
Beam Dynamics for a Photoinjected Energy Recovery Linac at the NSLS. (open access)

Beam Dynamics for a Photoinjected Energy Recovery Linac at the NSLS.

The Photoinjected Energy Recovery Linac (PERL) design study at the NSLS is considering the feasibility of a new synchrotron light source based on a 3-7 GeV energy recovering superconducting linac initiated by a photo-injected RF gun [1]. To be a competitive light source the photoinjector must provide high brightness electron beams with a normalized transverse emittance of 0.5-1 mm-mrad and a bunch charge per of 0.15-0.45 nC at a rep rate of 0.43-1.3 GHz. We provide a first pass assessment of some of the beam dynamics issues that are critical to preserving the high brightness beams.
Date: June 18, 2001
Creator: Murphy, J. B.; Ben-Zvi, Ilan; Towne, N.; Wang, J. M.; Wang, X. J.; Wu, J. H. et al.
System: The UNT Digital Library
Beam Dynamics Simulations for a Dc Gun Based Injector for Perl. (open access)

Beam Dynamics Simulations for a Dc Gun Based Injector for Perl.

The National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory (BNL) is considering an upgrade based on the Photoinjected Energy Recovering Linac (PERL). The various injector schemes for this machine are being extensively investigated at BNL. One of the possible options is photocathode DC gun. The schematic layout of a PERL DC gun based injector and its preliminary beam dynamics are presented in this paper. The transverse and longitudinal emittance of photo-electron beam were optimized for a DC field 500 kV.
Date: June 18, 2001
Creator: Zhou, F.; Ben-Zvi, Ilan & Wang, X. J.
System: The UNT Digital Library
BEAM INDUCED ENERGY DEPOSITION IN MUON STORAGE RINGS. (open access)

BEAM INDUCED ENERGY DEPOSITION IN MUON STORAGE RINGS.

Beam-induced radiation effects have been simulated for 20 and 50 GeV muon storage rings designed for a Neutrino Factory. It is shown that by appropriately shielding the superconducting magnets, quench stability, acceptable dynamic heat loads, and low residual dose rates can be achieved. Alternatively, if a specially-designed skew focusing magnet without superconducting coils on the magnet's mid-plane is used, then the energy is deposited preferentially in the warm iron yoke or outer cryostat layers and internal shielding may not be required. In addition to the component irradiation analysis, shielding studies have been performed. Calculations of the external radiation were done for both designs but the internal energy deposition calculations for the 20 GeV Study-2 lattice are still in progress.
Date: June 18, 2001
Creator: MOKHOV,N.V.; JOHNSTONE,C.J. & PARKER,B.L.
System: The UNT Digital Library