Zobrazeno 1 - 10
of 60
pro vyhledávání: '"R.L. York"'
Publikováno v:
1998 IEEE Nuclear Science Symposium Conference Record. 1998 IEEE Nuclear Science Symposium and Medical Imaging Conference (Cat. No.98CH36255).
An active neutron interrogation package monitor is being developed for the purpose of rapidly searching containers, packages, and luggage for special nuclear materials (SNM). The technique uses a pulsed neutron generator to interrogate the container
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a568f77c44280c5c7f142ea43c93de5c
https://doi.org/10.1109/nssmic.1998.774341
https://doi.org/10.1109/nssmic.1998.774341
Autor:
R.R. Stevens, W. Ingalls, David Richard Swenson, C. Geisik, R.L. York, J.E. Stelzer, D. Fitzgerald
Publikováno v:
Proceedings Particle Accelerator Conference.
We have continued the development of a toroidal-filter volume H/sup -/ ion source with the goal of providing a better ion source for the proton storage ring at the Los Alamos Neutron Scattering Center (LANSCE). A prototype source has produced H/sup -
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f344131a0ca7783406921dc614958672
https://doi.org/10.1109/pac.1995.505114
https://doi.org/10.1109/pac.1995.505114
Autor:
P.E. Fehlau, R.L. York
Ten years have elapsed since the publication of the original applications guide to vehicle special nuclear material (SNM) monitors. During that interval, use of automatic vehicle monitors has become more commonplace, and formal procedures for monitor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eac2dba16eff6856f7cf24013000579b
https://doi.org/10.2172/468602
https://doi.org/10.2172/468602
The security plans for many DOE facilities require the monitoring of pedestrians and vehicles to control the movement of special nuclear material (SNM). Vehicle monitors often provide the outer-most barrier against the theft of SNM. Automatic monitor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40afbd7e546d1d3c30c44bd257f5bdec
https://doi.org/10.2172/444040
https://doi.org/10.2172/444040
High brightness H{sup {minus}} ion beams will be required for the next generation of accelerator-driven, neutron spallation sources. Volume H{sup {minus}} ion sources have the potential for providing these beams at high duty factor with moderate beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99c656e9655d58a086130148a2fe5487
https://doi.org/10.2172/106609
https://doi.org/10.2172/106609
Publikováno v:
Physical Review Letters. 49:870-873
Optical pumping by a single-frequency cw ring dye laser of thick sodium-vapor targets (NL>10/sup 13/ atoms/cm/sup 2/) without buffer gas has been investigated for an optically pumped polarized ion source. The atomic polarization of the sodium was det
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff8f65a835cbd1b414376442ca1e4c9f
https://doi.org/10.1103/physrevlett.49.870
https://doi.org/10.1103/physrevlett.49.870
Publikováno v:
Review of Scientific Instruments. 55:681-686
H− ions produced by volume processes have been extracted from a multicusp source operated with a magnetic filter and accelerated to form a high‐quality beam. It was found that the H− beam current increased almost linearly with the discharge cur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5651bc08d91dcedf8b9aa8ee3ee82842
https://doi.org/10.1063/1.1137821
https://doi.org/10.1063/1.1137821
Publikováno v:
Nuclear Instruments and Methods in Physics Research. 189:599-602
We discuss the electron spin depolarization of a hydrogen beam formed by charge capture in a polarized alkali vapor. An expression is derived for the final ground-state polarization of the hydrogen beam as a function of external-magnetic-field streng
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed2869eea10a6b23d3c35811b87d325a
https://doi.org/10.1016/0029-554x(81)90448-1
https://doi.org/10.1016/0029-554x(81)90448-1
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :891-895
A new high-current H− injector has been installed at LAMPF for the proton storage ring. The injector is equipped with a multicusp surface-production H− ion source that was developed at LAMPF. The ion source is capable of long-term operation at 20
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::118e18b3ff04e9a8c1e5d084d0702d00
https://doi.org/10.1016/0168-583x(85)90132-6
https://doi.org/10.1016/0168-583x(85)90132-6
Autor:
R.R. Stevens, R.L. York
Publikováno v:
IEEE Transactions on Nuclear Science. 30:2705-2707
The addition of the Proton Storage Ring (PSR) to LAMPF requires the development of a more intense H/sup -/ ion source. The goals of this development program are to produce a beam of sufficient quality to match the acceptance of the accelerator and of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::036e82b65fb85ffd48175f6a48f1e498
https://doi.org/10.1109/tns.1983.4332929
https://doi.org/10.1109/tns.1983.4332929