Reaction rate calculations via transmission coefficients (open access)

Reaction rate calculations via transmission coefficients

The transmission coefficient of a wavepacket traversing a potential barrier can be determined by steady state calculations carried out in imaginary time instead of by real time dynamical calculations. The general argument is verified for the Eckart barrier potential by a comparison of transmission coefficients calculated from real and imaginary time solutions of the Schroedinger equation. The correspondence demonstrated here allows a formulation for the reaction rate that avoids difficulties due to both rare events and explicitly time dependent calculations. 5 refs., 2 figs.
Date: July 11, 1985
Creator: Feit, M. D. & Alder, B. J.
Object Type: Article
System: The UNT Digital Library
Coupling impedance of laminated magnets in the booster (open access)

Coupling impedance of laminated magnets in the booster

The magnets in the Fermilab Booster Synchrotron are laminated in order to minimize the eddy current losses and associated field distortions expected at a 15 Hz operating frequency. To further reduce the eddy current losses, the vacuum chamber is outside the magnet, hence allowing the beam induced wall currents to see the laminations directly. This note estimates the coupling impedances and beam energy loss per turn caused by the exposed laminations.
Date: July 11, 1986
Creator: Shafer, R. E.
Object Type: Report
System: The UNT Digital Library
Ion related problems for the XLS ring (open access)

Ion related problems for the XLS ring

The electron beam in the XLS will collide with the residual gas in the vacuum chamber. The positive ions will be trapped in the potential well of the electron beam. They will perform stable or unstable oscillations around the beam under the repetitive Coulomb force of the bunches. If not cleared, the captured ions will lead to partial or total neutralization of the beam, causing both, a decrease of life-time and a change in the vertical tunes as well as an increase in the tune-spread. They can also cause coherent transverse instabilities. The degree of neutralization {theta} that one can tolerate, is primarily determined by the allowable tune shift, which of the XLS is between 1 and 5 10{sup {minus}3}. Electrostatic clearing electrodes will be used to keep the neutralization below the desired limit. In order to determine their location and the necessary clearing-rate and voltage, we examine the ion production rate, longitudinal velocity of ions in field-free regions and in the dipoles to see what distance the ions can travel without clearing before the neutralization of the beam reaches the prescribed limit, beam potential to see the locations of the potential wells, voltage requirements for ion clearing, critical mass …
Date: July 11, 1989
Creator: Bozoki, E. & Halama, H. (Brookhaven National Lab., Upton, NY (USA))
Object Type: Report
System: The UNT Digital Library
A new semicustom integrated bipolar amplifier for silicon strip detectors (open access)

A new semicustom integrated bipolar amplifier for silicon strip detectors

The QPA02 is a four channel DC coupled two stage transimpedance amplifier designed at Fermilab on a semicustom linear array (Quickchip 2S) manufactured by Tektronix. The chip was developed as a silicon strip amplifier but may have other applications as well. Each channel consists of a preamplifier and a second stage amplifier/sharper with differential output which can directly drive a transmission line (90 to 140 ohms). External bypass capacitors are the only discrete components required. QPA02 has been tested and demonstrated to be an effective silicon strip amplifier. Other applications may exist which can use this amplifier or a modified version of this amplifier. For example, another design is now in progress for a wire chamber amplifier, QPA03, to be reported later. Only a relatively small effort was required to modify the design and layout for this application. 11 figs.
Date: July 11, 1989
Creator: Zimmerman, T.
Object Type: Report
System: The UNT Digital Library
Modification of the code BEAMCORR, and some simulation results of the magnet and achromat misalignments for the SLC South Arc (open access)

Modification of the code BEAMCORR, and some simulation results of the magnet and achromat misalignments for the SLC South Arc

An important decision has been made regarding the correction scheme for the arcs leading to the adoption of the so called scheme I. In this scheme the beam position data are collected from single-plane x and y Beam Position Monitors (BPMs), which are placed in the drift spaces adjacent to the downstream D- and F-magnets correspondingly. Similarly, single-plane x and y correctors are used for moving the upstream end of the corresponding magnets. In the present simulation this scheme is used exclusively. The first order calculations performed by means of TRANSPORT appear to be unsatisfactory from the point of view of the beam spotsize at the interaction point (IP). In this note we describe the modification to our program BEAMCORR which employs second order calculations by means of the program TURTLE. We also present the results of the following simulations: (a) study of the effects of two different levels of magnet misalignment on the beam spotsize at IP, and comparison of the results with those obtained by means of the program DINGBAT; (b) study of disjoints between achromats (both the displacement of the adjacent ends and angular discontinuity between achromats).
Date: July 11, 1984
Creator: Shoaee, H. & Kheifets, S.
Object Type: Report
System: The UNT Digital Library
Photovoltaic mechanisms in polycrystalline thin film silicon solar cells. Eighth month technical summary report, July 31, 1979-March 31, 1980 (open access)

Photovoltaic mechanisms in polycrystalline thin film silicon solar cells. Eighth month technical summary report, July 31, 1979-March 31, 1980

The objective of this program is to understand fundamental aspects of grain boundary influences on photocurrent collection and opposing current transport in polycrystalline silicon cells. Results of the program are expected to aid in optimizing thin film polycrystalline silicon solar cells. Three major tasks are addressed in this program, which includes a subcontract to the Pennsylvania State University (Penn State). These are: modeling, measurement technique development, and characterization and control of grain boundaries in polycrystalline silicon. Progress is reported. (WHK)
Date: July 11, 1980
Creator: Temofonte, T. A.; Szedon, J. R.; Dickey, H. C.; Fonash, S. J.; Ashok, S. & Lester, P. A.
Object Type: Report
System: The UNT Digital Library
Comparison of conventional and solar-water-heating products and industries report (open access)

Comparison of conventional and solar-water-heating products and industries report

President Carter established a goal that would require installation of at least one million solar water heaters by 1985 and 20 million water-heating systems by the year 2000. The goals established require that the solar industry be sufficiently mature to provide cost-effective, reliable designs in the immediate future. The objective of this study was to provide the Department of Energy with quantified data that can be used to assess and redirect, if necessary, the program plans to assure compliance with the President's goals. Results deal with the product, the industry, the market, and the consumer. All issues are examined in the framework of the conventional-hot-water industry. Based on the results of this solar hot water assessment study, there is documented proof that the solar industry is blessed with over 20 good solar hot water systems. A total of eight generic types are currently being produced, but a majority of the systems being sold are included in only five generic types. The good systems are well-packaged for quality, performance and installation ease. These leading systems are sized and designed to fit the requirements of the consumer in every respect. This delivery end also suffers from a lack of understanding of the …
Date: July 11, 1980
Creator: Noreen, D; LeChevalier, R; Choi, M & Morehouse, J
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 5, Number 52, Pages 2753-2808, July 11, 1980 (open access)

Texas Register, Volume 5, Number 52, Pages 2753-2808, July 11, 1980

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 11, 1980
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 11, Number 52, Pages 3186-3229, July 11, 1986 (open access)

Texas Register, Volume 11, Number 52, Pages 3186-3229, July 11, 1986

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 11, 1986
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: LO88-83 (open access)

Texas Attorney General Opinion: LO88-83

Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification.
Date: July 11, 1988
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-516 (open access)

Texas Attorney General Opinion: JM-516

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Validity of a contract between Nueces County and an economic development corporation
Date: July 11, 1986
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-517 (open access)

Texas Attorney General Opinion: JM-517

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a justice of the peace may be relieved of liability for cash shortages in his account
Date: July 11, 1986
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-518 (open access)

Texas Attorney General Opinion: JM-518

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Authority of hospital owned by a political subdivision to offer discounts to specific groups such as senior citizens, insurance companies, etc.
Date: July 11, 1986
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-519 (open access)

Texas Attorney General Opinion: JM-519

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether an individual may serve as both constable and member of a school board.
Date: July 11, 1986
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-520 (open access)

Texas Attorney General Opinion: JM-520

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether Acts 1985, 69th Leg., ch. 596, at 4559, impliedly repealed section 51.03(b)(5) of the Family Code, which defines, inhalation of paint fumes or glue as "conduct indicating a need for supervision"
Date: July 11, 1986
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-1071 (open access)

Texas Attorney General Opinion: JM-1071

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether the "certified agenda" provision of the Open Meetings Act, article 6252-17, V.T.C.S., unduly restricts speech rights of members of governmental bodies (RQ-1681)
Date: July 11, 1989
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-330 (open access)

Texas Attorney General Opinion: JM-330

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether the state may provide telecommunication services to a private foundation.
Date: July 11, 1985
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-331 (open access)

Texas Attorney General Opinion: JM-331

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Whether the citizens advisory panel of the Office of Public Utility Counsel is subject to the Open Meetings Act, article 6252-17, V.T.C.S..
Date: July 11, 1985
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
The use of idle equipment for ITER (International Thermonuclear Engineering Reactor) magnet development (open access)

The use of idle equipment for ITER (International Thermonuclear Engineering Reactor) magnet development

Test facilities that can be effectively applied to International Thermonuclear Engineering Reactor (ITER) magnet needs are scarce because the costs and the time required to produce them from the ground up tend to be prohibitive. It has been proposed as an option that several unique and valuable pieces of equipment that are already owned by the DOE be consolidated into the Lawrence Livermore National High Field Test Facility (HFTF) which may be uniquely qualified to make effective use of them. 6 figs., 4 tabs.
Date: July 11, 1988
Creator: Miller, J. R.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 14, Number 50, Pages 3317-3373, July 11, 1989 (open access)

Texas Register, Volume 14, Number 50, Pages 3317-3373, July 11, 1989

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 11, 1989
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
RHIC RF system (open access)

RHIC RF system

None
Date: July 11, 1988
Creator: Puglisi, M.
Object Type: Report
System: The UNT Digital Library
Some Remarks on Feedback and Feedforward Employed to Reduce Beam Induced Voltages (open access)

Some Remarks on Feedback and Feedforward Employed to Reduce Beam Induced Voltages

None
Date: July 11, 1988
Creator: E., Raka
Object Type: Report
System: The UNT Digital Library
Intrabeam Scattering Results for a High Frequency RF System (open access)

Intrabeam Scattering Results for a High Frequency RF System

None
Date: July 11, 1988
Creator: Parzen, G.
Object Type: Report
System: The UNT Digital Library
Beam Transfer AGS/RHIC, Low F - High F (open access)

Beam Transfer AGS/RHIC, Low F - High F

This report describes the beam transfer to 160MHZ Buckets, their compression rotation, matching, Bunch length.
Date: July 11, 1988
Creator: Raka, E.
Object Type: Report
System: The UNT Digital Library