Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

The design and performance of the FNAL high-energy polarized beam facility

Conference ·
OSTI ID:5476357

We describe a new polarized-proton and -antiproton beam with 185-GeV/c momentum in the Fermilab MP beam line which is currently operational. The design uses the parity-conserving decay of lambda and antilambda hyperons to produce polarized protons and antiprotons, respectively. A beam-transport system minimizes depolarization effects and uses a set of 12 dipole magnets that rotate the beam-particle spin direction. A beam-tagging system determines the momentum and polarization of individual beam particles, allowing a selection of particles in definite intervals at momentum and polarization. We measured polarization of the beam by using two types of polarimeters, which verified the determination of polarization by a beam-particle tagging system. Two of these processes are the inverse-Primakoff effect and the Coulomb-nuclear interference (CNI) in elastic proton-proton scattering. Another experiment measured the {pi}{sup 0} production asymmetry of large-x{sub F} values; this process may now be used as an on-line beam polarimeter. 9 refs., 9 figs.

Research Organization:
Los Alamos National Lab., NM (USA)
Sponsoring Organization:
DOE/ER
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5476357
Report Number(s):
LA-UR-89-3600; CONF-8910121--1; ON: DE90002409
Country of Publication:
United States
Language:
English

Similar Records

Polarization of antiprotons by antilambda decay
Conference · Sun Jul 20 00:00:00 EDT 1986 · AIP Conf. Proc.; (United States) · OSTI ID:6380903
The fermilab polarized proton and antiproton beam
Conference · Fri May 05 00:00:00 EDT 1989 · AIP Conference Proceedings (American Institute of Physics); (USA) · OSTI ID:5107282
Tests of a Coulomb-nuclear polarimeter
Conference · Fri May 05 00:00:00 EDT 1989 · AIP Conference Proceedings (American Institute of Physics); (USA) · OSTI ID:5034301

Related Subjects

43 PARTICLE ACCELERATORS
430200* -- Particle Accelerators-- Beam Dynamics
Field Calculations
& Ion Optics
ACCELERATORS
ANTINUCLEON BEAMS
ANTIPARTICLE BEAMS
ANTIPROTON BEAMS
BARYON-BARYON INTERACTIONS
BEAM TRANSPORT
BEAMS
BOSONS
CYCLIC ACCELERATORS
DESIGN
DETECTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
FERMILAB ACCELERATOR
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MESONS
NUCLEON BEAMS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE BEAMS
PARTICLE INTERACTIONS
PERFORMANCE
PIONS
POLARIMETERS
POLARIZED BEAMS
POLARIZED TARGETS
PROTON BEAMS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
SCATTERING
SYNCHROTRONS
TARGETS