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First CSDP (Continental Scientific Drilling Program)/thermal regimes core hole project at Valles Caldera, New Mexico (VC-1): Drilling report
This report is a review and summary of the core drilling operations of the first Valles Caldera research borehole (VC-1) under the Thermal Regimes element of the Continental Scientific Drilling Program (CSDP). The project is a portion of a broader program that seeks to answer fundamental scientific questions about magma, rock/water interactions, and volcanology through shallow (<1-km) core holes at Long Valley, California; Salton Sea, California; and the Valles Caldera, New Mexico. The report emphasizes coring operations with reference to the stratigraphy of the core hole, core quality description, core rig specifications, and performance. It is intended to guide future research on the core and in the borehole, as well as have applications to other areas and scientific problems in the Valles Caldera. The primary objectives of this Valles Caldera coring effort were (1) to study the hydrogeochemistry of a subsurface geothermal outflow zone of the caldera near the source of convective upflow, (2) to obtain structural and stratigraphic information from intracaldera rock formations in the southern ring-fracture zone, and (3) to obtain continuous core samples through the youngest volcanic unit in Valles Caldera, the Banco Bonito rhyolite (approximately 0.1 Ma). All objectives were met. The high percentage of core …
Date:
February 1, 1987
Creator:
Rowley, J.; Hawkins, W. & Gardner, J. (comps.)
System:
The UNT Digital Library
Multiturn injection of EBIS ions in booster
Ions from EBIS are injected into Booster after acceleration by an RFQ and a Linac. The velocity of the ions at Booster injection is c{beta} where c is the velocity of light and (1) {beta} = 0.0655. The kinetic energy is (2) W = mc{sup 2}({gamma}-1) where m is the ion mass and (3) {gamma} = (1-{beta}{sup 2}){sup -1/2}. Putting in numbers one gets a kinetic energy of approximately 2 MeV per nucleon for each ion. The revolution period at injection is 10.276 {micro}s. The ions in the EBIS trap are delivered in a beam pulse that ranges from 10 to 40 {micro}s in length. This amounts to 1 to 4 turns around the machine. The transverse emittance (un-normalized) of EBIS beams just prior to injection into Booster is 11{pi} mm milliradians in both planes. This is an order of magnitude larger than the nominal 1{pi} mm milliradians for Tandem beams. Injection proceeds by means of an electrostatic inflector in the C3 straight section and four programmable injection dipoles in the C1, C3, C7, and D1 straights. These devices have been in use for many years for the injection of ions from Tandem as described in [1] and [2]. The …
Date:
September 1, 2010
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Identification of Matrix Conditions that Give Rise to the Linear Coupling Resonances
N/A
Date:
March 1, 2009
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Some Useful Linear Coupling Approximations
N/A
Date:
July 1, 2003
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Identification of matrix conditions that give rise to the linear coupling resonances
General definitions of horizontal and vertical amplitudes for linear coupled motion are developed from the normal form of the one-turn matrix. This leads to the identification of conditions on the matrix that give rise to the linear coupling sum and difference resonances. The correspondence with the standard hamiltonian treatment of the resonances is discussed.
Date:
March 1, 2009
Creator:
Gardner,C.J.
System:
The UNT Digital Library
RF Capture Simulation for Gold Ions in AGS
N/A
Date:
October 1, 2000
Creator:
Gardner, C. J.
System:
The UNT Digital Library
An Algebraic Approach to the Evolution of Emittances upon Crossing the Linear Coupling Difference Resonance
N/A
Date:
September 1, 2008
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Sandia solar energy titles
A bibliography of solar energy-related publications produced by Sandia Laboratories, arranged in broad subject category order, is presented.
Date:
June 1, 1977
Creator:
Gardner, J. L.
System:
The UNT Digital Library
Simulations of Merging and Squeezing Bunches in Booster and AGS
N/A
Date:
September 1, 2012
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Notes on the Acceleration of Iron Ions for the Booster Applications Facility
N/A
Date:
December 1, 2002
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Kicker Pulse Width Requirements for the Injection of Gold Ions into AGS
N/A
Date:
August 1, 2003
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Simulations of RF Capture with Barrier Bucket in Booster at Injections
N/A
Date:
May 1, 2012
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Simulations of Bunch Merging in Booster
N/A
Date:
October 1, 2004
Creator:
Gardner, C. J.
System:
The UNT Digital Library
RF Capture and Acceleration of Gold Ions in Booster
N/A
Date:
November 1, 1999
Creator:
Gardner, C. J.
System:
The UNT Digital Library
FY10 parameters for the injection, acceleration, and extraction of gold ions in booster, AGS, and RHIC
A Gold ion with charge eQ has N = 197 Nucleons, Z = 79 Protons, and (Z-Q) electrons. (Here Q is an integer and e is the charge of a single proton.) The mass is m = au - Qm{sub e} + E{sub b}/c{sup 2} (1) where a = 196.966552 is the relative atomic mass [1, 2] of the neutral Gold atom, u = 931.494013 MeV/c{sup 2} is the unified atomic mass unit [3], and m{sub e}c{sup 2} = .510998902 MeV is the electron mass [3]. E{sub b} is the binding energy of the Q electrons removed from the neutral Gold atom. This amounts to 0.332 MeV for the helium-like gold ion (Q = 77) and 0.517 MeV for the fully stripped ion. For the Au{sup 31+} ion we have E{sub b} = 13.5 keV. These numbers are given in Ref. [4].
Date:
August 1, 2010
Creator:
Gardner, C. J.
System:
The UNT Digital Library
FY08 parameters for the injection, acceleration, and extraction of gold ions and deuterons in the booster, AGS, and RHIC
A Gold ion with charge eQ has N = 197 Nucleons, Z = 79 Protons, and (Z-Q) electrons. (Here Q is an integer and e is the charge of a single proton.) The mass is m = au - Qm{sub e} + E{sub b}/c{sup 2} (1) where a = 196.966552 is the relative atomic mass [1, 2] of the neutral Gold atom, u = 931.494013 MeV/c{sup 2} is the unified atomic mass unit [3], and m{sub e}c{sup 2} = .510998902 MeV is the electron mass [3]. E{sub b} is the binding energy of the Q electrons removed from the neutral Gold atom. This amounts to 0.332 MeV for the helium-like gold ion (Q = 77) and 0.517 MeV for the fully stripped ion. For the Au{sup 31+} ion we have E{sub b} = 13.5 keV. These numbers are given in Ref. [4]. The deuteron mass [3] is 1875.612762(75) MeV/c{sup 2}.
Date:
August 1, 2010
Creator:
Gardner, C. J.
System:
The UNT Digital Library
The New Booster Dump and Dump Bumps
N/A
Date:
March 1, 2001
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Rigidity Magnetic Field, and Inflector Voltage Based on Frequency Measurements in Booster
N/A
Date:
December 1, 2003
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Multi-turn Injetion of Heavy-Ions in Booster with the H-Minus Injection Foil Inserted
N/A
Date:
September 1, 2001
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Programming the New Sextupole Strings in Booster
N/A
Date:
May 1, 2003
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Notes on the Injection of EBIS Ions into Booster
N/A
Date:
June 1, 2006
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Beam Based Polarity Check of the Booster Sextupole Strings
N/A
Date:
August 1, 2003
Creator:
Gardner, C. J.
System:
The UNT Digital Library
AGS Injection with an Additional Kicker in the A10 Straight Section
N/A
Date:
September 1, 2005
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Modeling Injection Trajectories on the Midplane of the C5 Dipole in Booster
N/A
Date:
February 1, 2005
Creator:
Gardner, C. J.
System:
The UNT Digital Library