Status report on the Los Alamos proton storage ring

Conference · Sun Nov 20 04:00:00 EST 1988 · AIP Conf. Proc.; (United States)

OSTI ID:6474043

Colton, E; Neuffer, D; Thiessen, H A; Butler, H; Swain, G R; Lombardi, A; Fitzgerald, D; Mariam, F; Plum, M; Ryder, R; others, and

The proton storage ring currently operates at an average current of 30 ..mu..A corresponding to 1.25 x 10/sup 13/ protons per pulse (ppp) at a repetition rate of 15 Hz. The design operating current for the machine is 100 ..mu..A. We are limited to running at the reduced yield because of beam losses during the accumulation period. These losses are understood and arise mainly from emittance growths during the injection and multiple scattering in the stripping foil during the storage. During beam studies we have succeeded in accumulating in excess of 3.7 x 10/sup 13/ ppp. We have also observed a coherent transverse instability at high charge levels. The signture for the instability is rapid coherent growth of the transverse beam size followed by a loss of beam in the machine. The threshold for the instability depends most strongly upon rf voltage and beam size.

• Research Organization: Los Alamos National Laboratory, Los Alamos, NM 87545
• OSTI ID: 6474043
• Report Number(s): CONF-8805142-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 176:1
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430400* -- Particle Accelerators-- Storage Rings
ACCELERATORS
BARYONS
BEAM CURRENTS
BEAMS
CONSTRUCTION
CURRENTS
DATA
DIAGRAMS
DOCUMENT TYPES
ELEMENTARY PARTICLES
ENGINEERING DRAWINGS
FERMIONS
HADRONS
INFORMATION
LAMPF LINAC
LINEAR ACCELERATORS
MESON FACTORIES
NEUTRON SOURCES
NEUTRONS
NUCLEON BEAMS
NUCLEONS
NUMERICAL DATA
PARTICLE BEAMS
PARTICLE SOURCES
PROGRESS REPORT
PROTON BEAMS
RADIATION SOURCES
STORAGE RINGS
THERMAL NEUTRONS