Part 1, Angular distribution measurement of beam-foil muonium, Part 2, Muon injection simulation for a new muon g-2 experiment

Technical Report · Thu Oct 01 04:00:00 EDT 1992

OSTI ID:7012169

Ahn, H E

The angular and energy distributions of positive muons [mu][sup +] and muonium M produced by the beam-foil method have been measured for the first time. A 7 MeV/c subsurface [mu][sup +] beam was delivered to our apparatus from the Stopped Muon Channel at the Los Alamos Clinton P. Anderson Meson Physics Facility (LAMPF). The [mu][sup +] formed M by electron capture in a thin Al target foil. A low pressure multi-wire proportional chamber upstream of the target foil was used both as a moderator and as a muon counter. To observe muonium, muons sere swept away by a bending magnet which was placed downstream of the target foil. This magnet was turned off while measuring the [mu][sup +] distribution. Beyond the magnetic field, particles were collimated and then stopped by a microchannel plate detector located at various angles to the incident muon beam axis. Two pairs of scintillators mounted above (St) and below (Sb) the MC-P were used to detect the decay positrons to verify from the lifetime spectrum that the particles detected by the MCP are muons. The intensities of [mu][sup +] and M emerging from the Al foil at different angles were obtained from both a time-of-flight spectrum and a lifetime spectrum.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7012169
• Report Number(s): LA-12380-T; ON: DE93002178
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
BEAM INJECTION
BEAMS
CHARGE EXCHANGE
COMPUTERIZED SIMULATION
DATA ANALYSIS
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY LOSSES
ENERGY SPECTRA
EQUATIONS
FERMIONS
GYROMAGNETIC RATIO
LEPTON BEAMS
LEPTONS
LOSSES
MAGNETIC MOMENTS
MEASURING METHODS
MONTE CARLO METHOD
MUON BEAMS
MUONIUM
MUONS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE BEAMS
PRODUCTION
SCATTERING
SIMULATION
SPECTRA
STORAGE RINGS
WAVE EQUATIONS