All Stories

  1. Matching of turn pattern measurements for cyclotrons using multiobjective optimization

    Article • Physical Review Accelerators and Beams, June 2019, American Physical Society (APS)

    Christian Baumgarten

  2. On the accuracy of Monte Carlo based beam dynamics models for the degrader in proton therapy facilities

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, August 2018, Elsevier

    Christian Baumgarten

  3. Intensity limits of the PSI Injector II cyclotron

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, March 2018, Elsevier

    Christian Baumgarten

  4. Evolution of a beam dynamics model for the transport line in a proton therapy facility

    Article • Physical Review Accelerators and Beams, December 2017, American Physical Society (APS)

    Christian Baumgarten

  5. Minkowski Spacetime and QED from Ontology of Time

    Article • November 2016, World Scientific Pub Co Pte Lt

    Christian Baumgarten

  6. Old Game, New Rules: Rethinking the Form of Physics

    Article • Symmetry, May 2016, MDPI AG

    Christian Baumgarten

  7. A new look at linear (non-?) symplectic ion beam optics in magnets

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, January 2014, Elsevier

    Christian Baumgarten

  8. Cyclotrons with fast variable and/or multiple energy extraction

    Article • Physical Review Special Topics - Accelerators and Beams, October 2013, American Physical Society (APS)

    Christian Baumgarten

  9. Geometrical method of decoupling

    Article • Physical Review Special Topics - Accelerators and Beams, December 2012, American Physical Society (APS)

    Christian Baumgarten

  10. Transverse-longitudinal coupling by space charge in cyclotrons

    Article • Physical Review Special Topics - Accelerators and Beams, November 2011, American Physical Society (APS)

    Christian Baumgarten

  11. Use of real Dirac matrices in two-dimensional coupled linear optics

    Article • Physical Review Special Topics - Accelerators and Beams, November 2011, American Physical Society (APS)

    Christian Baumgarten

  12. Cyclotron closed orbits on a radial grid

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, August 2011, Elsevier

    Christian Baumgarten

  13. A compact electron cyclotron resonance proton source for the Paul Scherrer Institute's proton accelerator facility

    Article • Review of Scientific Instruments, May 2011, American Institute of Physics

    Christian Baumgarten

  14. Transverse polarization ofΛandΛ¯hyperons in quasireal photoproduction

    Article • Physical Review D, November 2007, American Physical Society (APS)

    Christian Baumgarten

  15. Isochronism of the ACCEL 250MeV medical proton cyclotron

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, January 2007, Elsevier

    Christian Baumgarten

  16. Automated cyclotron tuning using beam phase measurements

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, December 2006, Elsevier

    Christian Baumgarten

  17. A beam profile measurement in the ACCEL 250MeV medical proton cyclotron

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, December 2006, Elsevier

    Christian Baumgarten

  18. New superconducting cyclotron driven scanning proton therapy systems

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, December 2005, Elsevier

    Christian Baumgarten

  19. The HERMES polarized hydrogen and deuterium gas target in the HERA electron storage ring

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, March 2005, Elsevier

    Christian Baumgarten

  20. Quark helicity distributions in the nucleon for up, down, and strange quarks from semi-inclusive deep-inelastic scattering

    Article • Physical Review D, January 2005, American Physical Society (APS)

    Christian Baumgarten

  21. Flavor Decomposition of the Sea-Quark Helicity Distributions in the Nucleon from Semiinclusive Deep Inelastic Scattering

    Article • Physical Review Letters, January 2004, American Physical Society (APS)

    Christian Baumgarten

  22. A gas analyzer for the internal polarized target of the HERMES experiment

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, August 2003, Elsevier

    Christian Baumgarten

  23. The HERMES polarized atomic beam source

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, June 2003, Elsevier

    Christian Baumgarten

  24. Evidence for Quark-Hadron Duality in the Proton Spin AsymmetryA1

    Article • Physical Review Letters, March 2003, American Physical Society (APS)

    Christian Baumgarten

  25. Q2Dependence of Nuclear Transparency for Exclusiveρ0Production

    Article • Physical Review Letters, February 2003, American Physical Society (APS)

    Christian Baumgarten

  26. Measurements of atomic recombination in the HERMES polarized hydrogen and deuterium storage cell target

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, January 2003, Elsevier

    Christian Baumgarten

  27. The storage cell of the polarized H/D internal gas target of the HERMES experiment at HERA

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, January 2003, Elsevier

    Christian Baumgarten

  28. Time-of-flight measurements in atomic beam devices using adiabatic high frequency transitions and sextupole magnets

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, August 2002, Elsevier

    Christian Baumgarten

  29. An atomic beam polarimeter to measure the nuclear polarization in the HERMES gaseous polarized hydrogen and deuterium target

    Article • Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, April 2002, Elsevier

    Christian Baumgarten

  30. Molecular flow and wall collision age distributions

    Article • The European Physical Journal D, January 2002, Springer Science + Business Media

    Christian Baumgarten

  31. Measurement of longitudinal spin transfer toΛhyperons in deep-inelastic lepton scattering

    Article • Physical Review D, November 2001, American Physical Society (APS)

    Christian Baumgarten

  32. Measurement of the Beam-Spin Azimuthal Asymmetry Associated with Deeply-Virtual Compton Scattering

    Article • Physical Review Letters, October 2001, American Physical Society (APS)

    Christian Baumgarten

  33. Single-spin azimuthal asymmetries in electroproduction of neutral pions in semi-inclusive deep-inelastic scattering

    Article • Physical Review D, October 2001, American Physical Society (APS)

    Christian Baumgarten

  34. Evidence for a Single-Spin Azimuthal Asymmetry in Semi-inclusive Pion Electroproduction

    Article • Physical Review Letters, May 2000, American Physical Society (APS)

    Christian Baumgarten

  35. Measurement of the Spin Asymmetry in the Photoproduction of Pairs of High-pTHadrons at HERMES

    Article • Physical Review Letters, March 2000, American Physical Society (APS)

    Christian Baumgarten

  36. Observation of a Coherence Length Effect in Exclusiveρ0Electroproduction

    Article • Physical Review Letters, April 1999, American Physical Society (APS)

    Christian Baumgarten

  37. Beam-Induced Nuclear Depolarization in a Gaseous Polarized-Hydrogen Target

    Article • Physical Review Letters, February 1999, American Physical Society (APS)

    Christian Baumgarten

  38. Flavor Asymmetry of the Light Quark Sea from Semi-inclusive Deep-Inelastic Scattering

    Article • Physical Review Letters, December 1998, American Physical Society (APS)

    Christian Baumgarten