The JLab Frozen Spin Target

Journal Article · Tue Aug 04 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3215785· OSTI ID:21344469

Keith, C D ^[1]

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1. Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States)

A polarized, frozen spin target has been designed and constructed at Jefferson Lab for use inside the CEBAF Large Acceptance Spectrometer. Protons in TEMPO-doped butanol are polarized via dynamic nuclear polarization (DNP) to approximately 90% using microwaves and an external, 5 T solenoid magnet. The target sample is then cooled to approximately 30 mK while an internal 0.56 T superconducting magnet is used to maintain the polarization. Relaxation times in excess of 3500 hours have been observed.

• OSTI ID: 21344469
• Journal Information: AIP Conference Proceedings, Vol. 1149, Issue 1; Conference: SPIN 2008: 18. International Spin Physics Symposium, Charlottesville, VA (United States), 6-11 Oct 2008; Other Information: DOI: 10.1063/1.3215785; (c) 2009 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BUTANOLS
CEBAF ACCELERATOR
DINITROPHENOL
MICROWAVE RADIATION
POLARIZATION
POLARIZED TARGETS
PROTON-PROTON INTERACTIONS
PROTONS
SOLENOIDS
SPIN
SUPERCONDUCTING MAGNETS
ACCELERATORS
ALCOHOLS
ANGULAR MOMENTUM
AROMATICS
BARYON-BARYON INTERACTIONS
BARYONS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
ELECTROMAGNETS
ELEMENTARY PARTICLES
EQUIPMENT
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYDROXY COMPOUNDS
INTERACTIONS
LINEAR ACCELERATORS
MAGNETS
NITRO COMPOUNDS
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHENOLS
PROTON-NUCLEON INTERACTIONS
RADIATIONS
SUPERCONDUCTING DEVICES
TARGETS