Zobrazeno 1 - 10
of 27
pro vyhledávání: '"R. L. York"'
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 333:251-255
The systematic errors that arise in polarization measurements have been examined using the LAMPF optically pumped polarized ion source (OPPIS). Knowledge of these is important in planning precise experiments such as charge symmetry breaking or parity
Autor:
D. Ambrose, David Richard Swenson, P. J. Riley, P. Coffey, M. W. McNaughton, J.C. Hiebert, H. Woolverton, G. E. Tripard, D. Tupa, G. Glass, K. Johnston, K. H. McNaughton, R. L. York, H. M. Spinka, R. H. Jeppesen, I. Supek
Publikováno v:
Physical Review C. 48:256-265
We have measured the analyzing power ${\mathit{A}}_{\mathit{N}\mathit{O}}$ and the spin transfer ${\mathit{K}}_{\mathit{N}\mathit{N}}$ for np-elastic scattering from about 60\ifmmode^\circ\else\textdegree\fi{} to 170\ifmmode^\circ\else\textdegree\fi{
Publikováno v:
Review of Scientific Instruments. 67:1042-1044
High brightness H− ion beams will be required for the next generation of accelerator‐driven, neutron spallation sources. Volume H− ion sources have the potential for providing these beams at a high duty factor with moderate beam currents and wi
Publikováno v:
Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology.
The space charge code SCHAR has been used to interpret some of the measurements made with the LAMPF ECR (Los Alamos Meson Physics Facility electron cyclotron resonance) source. Calculations were made for rectangular hole (ribbon beam), single hole, a
Publikováno v:
Proceedings of International Conference on Particle Accelerators.
One method of increasing the intensity of the LAMPF proton Storage Ring is to use a brighter H/sup -/ ion source. To develop such a source, the performance of the small LBL dipole filter and the BNL toroidal filter volume H/sup -/ sources are being i
Publikováno v:
Conference Record of the 1991 IEEE Particle Accelerator Conference.
A report is presented on experiments to understand the laser optical pumping efficiency for the Optically Pumped Polarized Ion Source (OPPIS) at LAMPF. Measurements were made of ion beam polarization and current vs. laser power and potassium vapor th
Publikováno v:
AIP Conference Proceedings.
We report improvement of the polarization diagnostics and their use in the development of the Optically Pumped Polarized Ion Source (OPPIS).
Autor:
L. C. Northcliffe, John C. Hiebert, R. L. York, Ronald E. Brown, Subrata Nath, P. Doleschall, R. G. Graves, H. Woolverton
Publikováno v:
Physical Review C. 28:2230-2233
The transverse polarization transfer coefficient K/sub y//sup y/' has been measured for the reaction /sup 1/H(d,n)pp at 0/sup 0/ for E/sub d/ = 42.8 MeV as a function of breakup neutron energy. For the high-energy neutrons (E/sub n/>28 MeV) the avera
Publikováno v:
Physical Review C. 27:46-56
The analyzing power A/sub y/(theta) for elastic scattering of neutrons by /sup 4/He has been measured for eight angles in the range 80/sup 0/
Autor:
M. W. McNaughton, C. L. Hollas, K. Toshioka, E. W. Hoffman, R. L. York, R. D. Ransome, B. E. Bonner, P. J. Riley, W. D. Cornelius, O. B. van Dyck
Publikováno v:
Physical Review C. 25:1967-1971
The spin depolarization parameters ${D}_{\mathrm{NN}}$, ${D}_{\mathrm{SS}}$, ${D}_{\mathrm{LS}}$, and the spin transfer parameters ${K}_{\mathrm{NN}}$, ${K}_{\mathrm{SS}}$, ${K}_{\mathrm{LS}}$ have been measured for $\mathrm{pp}\ensuremath{\rightarro