Testing of a high current DC ESQ accelerator

Autor: W. S. Cooper, C. F. Chan, L. Soroka, W.B. Kunkel, G. D. Ackerman, G. J. deVries, Russell Wells, W. F. Steele, O. A. Anderson, J.W. Kwan
Rok vydání: 2002
Předmět:
Zdroj: Kwan, J.W.; Ackerman, G.D.; Anderson, O.A.; Chan, C.F.; Cooper, W.S.; Vries, G.J. de; et al.(1991). Testing of a High Current DC ESQ Accelerator. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/5xc9j1j6
DOI: 10.1109/pac.1991.164834
Popis: A high current DC electrostatic quadrupole (ESQ) accelerator is being developed for negative-ion-based neutral beam heating and current drive on the next generation tokamak. Beam energy and current will eventually be in the megaelectronvolt and multiampere range. This constant-current variable-voltage (CCVV) accelerator uses a series of identical ESQ modules. The authors have successfully tested a prototype CCVV accelerator up to 200 keV with a 100-mA He/sup +/ beam (with space charge equivalence of 140 mA of D/sup -/) for a pulse length of 1 s. Testing was also done with a 42-mA H/sup -/ beam (H/sup -/ beam current was limited by source performance). There was almost no beam loss in the ESQ accelerator. >
Databáze: OpenAIRE