Testing of an advanced ‘‘volume’’ H− source and preaccelerator

Autor:	P. Purgalis, C. F. Chan, Wulf B. Kunkel, W. F. Steele, Ka-Ngo Leung, O. A. Anderson, G. J. deVries, G. D. Ackerman, J.W. Kwan, Russell Wells, W. S. Cooper
Rok vydání:	1991
Předmět:	Materials science law Pulse duration Particle accelerator Atmospheric-pressure plasma Plasma Electron Atomic physics Penning trap Instrumentation Ion source Beam (structure) law.invention
Zdroj:	Review of Scientific Instruments. 62:1521-1526
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1142480
Popis:	In testing a cesiated volume‐production negative ion source, we have obtained 75 mA of H− beam current in a 270 ms pulse length delivered downstream of the 87 keV preaccelerator. Optimum pressure in the source was less than 8 mT and the electron‐to‐ion ratio in the beam was less than 4. With future improvements in the electron trap, it is anticipated that higher H− current can be obtained by operating with a higher discharge power and a lower plasma electrode bias.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8d9ec06c4fd423a85622da02501bf55b https://doi.org/10.1063/1.1142480 Zobrazit plný text záznamu