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The Lineage of Nuclear Polarization Instrumentation Often Leads Through Madison

The Lineage of Nuclear Polarization Instrumentation Often Leads Through Madison. Sourcery, Targetry, and Polarimetry. Thomas B. Clegg University of North Carolina at Chapel Hill and Triangle Universities Nuclear Laboratory. Sourcery - 1964.

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The Lineage of Nuclear Polarization Instrumentation Often Leads Through Madison

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  1. The Lineage of Nuclear Polarization Instrumentation Often Leads Through Madison Sourcery, Targetry, and Polarimetry Thomas B. Clegg University of North Carolina at Chapel Hill and Triangle Universities Nuclear Laboratory

  2. Sourcery - 1964 First production of polarized H or D negative ions I beam = 300 pA

  3. Sourcery - 1965 First acceleration of polarized ions in tandem accelerator Polarization preserved with foil stripper Ibeam  10-20 pA Pbeam 0.45

  4. Sourcery – 1967/8 First Lamb-shift polarized source installed on an acceleratorFirst purely vector- and tensor-polarized deuteron beams

  5. Sourcery - 1968 Begins long association with Wilmer Anderson et al.

  6. Targetry - 1968 First spin correlation measurement with polarized beam & target Ptarget 0.1 Ibeam 0.5 nA Two points in 48 hours! Axz θcm

  7. Polarimetry – 1968-71 p + 4He Ay Ay = 1 points Proton Lab Energy First absolute calibration method for spin-1/2 particle polarization

  8. Sourcery - 1978 First ionization of polarized atoms with a cesium beam Ibeam3μA Pbeam 0.89 !!

  9. Targetry - 1980 First test of teflon-coated target cell for stored polarized atoms Some target atom polarization was maintained after ~900 wall collisions

  10. Targetry - 1992 Proved that storage cell target was compatible with the IUCF Cooler Ring and that p + p scattering measurements are possible with such a target.

  11. Targetry - 1992 First measurement of polarization of ions extracted from a target Showed that deuterons in extracted molecular ions are almost completely unpolarized.

  12. Targetry – 1993-4 First detailed studies of depolarization of stored atoms on various wall surfaces over a range of temperatures

  13. Targetry – 1993 First test of polarization of atoms in a prototype of the Indiana Cyclotron Facility Cooler Ring polarized target Polarization measured by p + p scattering at 7.6 MeV. Ptarget > 70% of Pmax

  14. Sourcery ~ 1991-93 Developed an optimized atomic beam source with permanent magnet sextupole systems

  15. Targetry ~ 1989-95 Scattering from stored polarized atoms in a storage ring FILTEX Source at Heidelberg

  16. Targetry ~ 1992-98 PINTEX at IUCF

  17. Targetry ~ 1993-2005 Internal storage cell target enabled first measurements of nucleon’s internal spin structure HERMES Collaboration at DESY

  18. Polarimetry/Targetry ~ 2001-05 Developed polarized jet target to measure the RHIC beam polarization after acceleration by using p + p scattering H-Jet at RHIC

  19. SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN SPIN Sourcery, Targetry, and Polarimetry

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