Discrete Solitons in Optics

Energy levels of light nuclei A=8,9,10

Energy levels of A = 21−44 nuclei (V)

Energy levels of light nuclei A = 5–10

An evaluation of A = 13–15 was published in Nuclear Physics A152 (1970), p. 1. This version of A = 14 differs from the published version in that we have corrected some errors discovered after the article went to press. Figures and introductory tables have been omitted from this manuscript. Reference key numbers have been changed to the NNDC/TUNL format. (References closed December 31, 1969) The original work of Fay Ajzenberg-Selove was supported by the US Department of Energy [DE-AC02-76-ER02785]. Later modification by the TUNL Data Evaluation group was supported by the US Department of Energy, Office of High Energy and Nuclear Physics, under: Contract No. DEFG05-88-ER40441 (North Carolina State University); Contract No. DEFG05-91-ER40619 (Duke University). Nucl. Phys. A152 (1970) 1 A = 14 Table of

Energy Levels of Light Nuclei A = 14

A summary of the electron beam high voltage system design for the IUCF Cooler1,2,3, now under construction, is presented. There are extremely stringent regulation requirements (~10ppm) on the main high voltage power supply (-300 kVDC, 15 mA), and less stringent requirements on the gun anode power supply, in order to achieve the regulation needed to store beams in the IUCF Cooler with very low momentum spreads (?p/p ? 2xl0-5). An overview of the main high voltage power supply (HVPS) specifications and design, as well as provisions and plans to improve the regulation are discussed. The electron collection system, modeled after the FNAL collector which was able to collect between 99.9% and 99.99% of the electron beam, is discussed along with the requirements of the associated power supplies. The designs of the high voltage acceleration structures and high voltage platform are discussed, as well as practical design considerations based upon experience with the Fermilab 120 keV electron cooling system.

High Voltage System Design for the IUCF 300 KV Electron Cooling System

A 6 MeV 2 A electron cooling system is being designed for the SSC Medium Energy Booster (MEB). This system will decrease the beam emittance by at least a factor of two in 25 to 60 s, consequently increasing the initial SSC luminosity by the same factor. Alternately, the required number of p,articles per bunch (and therefore synchrotron radiation and required cryogenic cooling power) can be reduced while keeping the luminosity constant; or this system can compensate for unexpected emittance-increasing effects while relaxing the closed orbit error and dynamic aperture requirements of the following machines. This paper summarized the system design, and the status of the proof-of-principle electron beam recirculation tests to be carried out at the National Electrostatics Corp.

Design of a 6 MeV electron cooling system for the SSC medium energy booster

Spectroscopy of 14C from the 11B(α,p)14C reaction at 118 MeV

The nonlinear beam dynamics of transverse betatron oscillations were studied experimentally at the IUCF Cooler Ring. Particles were kicked onto resonance islands and the properties of these islands were studied. The island tune was determined with high precision by Fourier analyzing the spectrum containing the islands and the properties of these island were studied. The island tune was determined with high precision by Fourier analyzing the spectrum containing the island oscillations. The island width was estimated based on a single resonance model. The Hamiltonian of particle motion near a resonance condition was thus deduced.

Nonlinear beam dynamics studies at the IUCF cooler ring

Construction has begun on a low energy booster synchrotron to replace the IUCF isochronous cyclotrons for the injection of polarized light ions into the existing 3.6 T-m electron-cooled storage ring (cooler). CIS (cooler injector synchrotron), with a circumference of 1/5th the cooler ring, will provide /spl ges/2.5/spl middot/10/sup 10/ polarized protons (deuterons) per pulse at 1 Hz for cooler injection. Bucket-to-bucket beam transfer from CIS to the cooler operating on the 5th harmonic will fill the cooler with 10/sup 11/ protons in 5 sec. The higher intensity and improved duty cycle will enhance the range and quality of experimental nuclear physics research programs using cooler beams.

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D.L. Friesel

Papers

High Voltage System Design for the IUCF 300 KV Electron Cooling System

Design of a 6 MeV electron cooling system for the SSC medium energy booster

Spectroscopy of 14C from the 11B(α,p)14C reaction at 118 MeV

Nonlinear beam dynamics studies at the IUCF cooler ring

CIS, a low energy injector for the IUCF cooler