Polarized H Source Development At Bnl

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Polarized H Source Development At Bnl

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Author :
language : en
Publisher:
Release Date : 1986

Polarized H Source Development At Bnl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.

The Bnl Polarized H Ion Source Development Program

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Author :
language : en
Publisher:
Release Date : 1992

The Bnl Polarized H Ion Source Development Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Polarized H Source Development At Bnl

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Author :
language : en
Publisher:
Release Date : 1986

Polarized H Source Development At Bnl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.

A polarized H− source has been in operation at BNL for several years. It produces 500 .mu.s pulses of approx. 40 .mu. A H− with polarization of approx. 75% measured at 200 MeV. Normal operation is at 0.5 Hz, but the source has recently been operated at 5 Hz with encouraging results. Progress in developing a milliampere source is reported.

The Bnl Polarized H Sup Minus Ion Source Development Program

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language : en
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Release Date : 1992

The Bnl Polarized H Sup Minus Ion Source Development Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Polarized protons have been available for acceleration in the AGS for the high energy physics program since 1984. The polarized H[sup [minus]] source, PONI-1, has routinely supplied a 0.4 Hz, 400 [mu]sec pulse having a nominal intensity of 40 [mu]A. Polarization is [approximately]80% out of the ion source. After PONI- 1 became operational, a program was initiated to develop a more intense source based on a cold ground state atomic beam source, followed by ionization of the polarized H[degrees] beam by D[sup [minus]] charge exchange. Various phases of this work have been fully reported elsewhere, and only a summary is given here.

The Bnl Polarized H Ion Source Development Program

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Author :
language : en
Publisher:
Release Date : 1992

The Bnl Polarized H Ion Source Development Program written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.

Polarized protons have been available for acceleration in the AGS for the high energy physics program since 1984. The polarized H[sup [minus]] source, PONI-1, has routinely supplied a 0.4 Hz, 400 [mu]sec pulse having a nominal intensity of 40 [mu]A. Polarization is [approximately]80% out of the ion source. After PONI- 1 became operational, a program was initiated to develop a more intense source based on a cold ground state atomic beam source, followed by ionization of the polarized H[degrees] beam by D[sup [minus]] charge exchange. Various phases of this work have been fully reported elsewhere, and only a summary is given here.

Advances In Bnl S Polarized Ion Source Development

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language : en
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Release Date : 1988

Advances In Bnl S Polarized Ion Source Development written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Polarized protons have been accelerated in the AGS to 22/yield/ GeV. The polarized source presently used produces 30-40 .mu. A of /rvec char/H− at 75-80% polarization, in 500 .mu.s pulses, 0.5 Hz. This is three orders of magnitude lower in intensity than normal H− operation, and higher intensities are desired. There is a program in the AGS department to develop a higher intensity source. This is a ground state atomic beam source with an atomic beam cooled to 6 K, spin selection and focusing via a superconducting solenoid (shown) or a sextupole system, and an ionizer for /rvec char/H− production based on the charge exchange of /rvec char/H° with D−. Work is in progress on all three components, and will be described in this paper. 6 refs., 7 figs.

High Intensity Polarized H Proton Deuteron And 3he Ion Source Development At Bnl

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language : en
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Release Date : 2008

High Intensity Polarized H Proton Deuteron And 3he Ion Source Development At Bnl written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

New techniques for the production of polarized electron, H− (proton), D (D+) and 3H{sup ++} ion beams are discussed. Feasibility studies of these techniques are in progress at BNL. An Optically Pumped Polarized H− Ion Source (OPPIS) delivers beam for polarization studies in RHIC. The polarized deuteron beam will be required for the deuteron Electron Dipole Moment (EDM) experiment, and the 3H{sup ++} ion beam is a part of the experimental program for the future eRHIC (Electron Ion) collider.

Pulsed Cs Beam Development For The Bnl Polarized H Source

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language : en
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Release Date : 1983

Pulsed Cs Beam Development For The Bnl Polarized H Source written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.

A pulsed Cs beam has been developed for use on a polarized H− source. Cesium ion production is by surface ionization using a porous tungsten ionizer. While satisfactory current pulses (5 to 10 mA greater than or equal to 0.5 ms) can be obtained, the pulse shapes are a sensitive function of the ionizer temperature and Cs surface coverage. The beam optical requirements are stringent, and the optics have been studied experimentally for both Cs and Cs° beams. Computer calculations are in good agreement with the observed results. The present source has delivered 2.6 mA of Cs+ through the interaction region of the polarized ion source, and as much as 2.0 particle mA of Cs°. A new source is being built which is designed to give 15 mA through the interaction region.

The New Bnl Polarized Negative Ion Source

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language : en
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Release Date : 1991

The New Bnl Polarized Negative Ion Source written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

A new ground state source of negative hydrogen ions with polarized nuclei ({rvec H}−) is being developed at BNL. Extensive developmental research has been aimed at improving each element of ({rvec H}−) production: cold H° beam, spin selection and focusing magnets, and ionizer. These elements have recently been integrated into a source. A first test with the accommodator nozzle cooled only to liquid nitrogen temperatures resulted in 5 [mu]A of H−. Tests at liquid helium temperatures are now beginning. 7 refs., 1 fig.

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1993

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Power resources categories.