Laser photoionization of H/sup 0/ beams for charge-changing injection

Conference · Mon Aug 01 00:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5274745

Blind, B; Jason, A J

The two-step charge-changing injection used in the Los Alamos Proton Storage Ring (PSR) requires stripping of H/sup -/ to H/sup 0/ by high magnetic fields and subsequent stripping of H/sup 0/ to H/sup +/ by a carbon foil. The authors consider single- and multiphoton laser ionization as alternatives to using a fragile foil. The multiphoton case is of possible interest for selection of practical lasers, which tend to have increased power output at higher wavelengths. The formulas derived express the necessary laser powers for ionization of monoenergetic H/sup 0/ beams; they also hold for beams of particles other than atomic hydrogen. The numerical examples given are for the 800-MeV PSR beam with momentum spread taken into account. Additionally, they discuss selective stripping as an implication of the inherent energy selectivity of the photoionization process.

• Research Organization: AT-3, Ms H808, Los Alamos Nat.'l Lab., Los Alamos, NM 87545
• OSTI ID: 5274745
• Report Number(s): CONF-830311-; TRN: 84-005729
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-30:4; Conference: Particle accelerator conference, Santa Fe, NM, USA, 21 Mar 1983
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
STORAGE RINGS
BEAM STRIPPERS
ION BEAM INJECTION
CHARGE EXCHANGE
HYDROGEN 1 MINUS BEAMS
HYDROGEN IONS
IONIZING RADIATIONS
LASER RADIATION
LASERS
LASL
MAGNETIC FIELDS
MEV RANGE 100-1000
PHOTOIONIZATION
STRIPPING
BEAM INJECTION
BEAMS
CHARGED PARTICLES
DIRECT REACTIONS
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ION BEAMS
IONIZATION
IONS
MEV RANGE
NATIONAL ORGANIZATIONS
NUCLEAR REACTIONS
RADIATIONS
TRANSFER REACTIONS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
430400* - Particle Accelerators- Storage Rings