Status and future plans for the BNL polarized H/sup -/ source
Conference
·
OSTI ID:5362522
In 1982, when Haeberli described the design and performance of his 3 ..mu..A polarized negative hydrogen source, he predicted that the colinear colliding beam source had the potential to produce H/sup -/ beam currents well in excess of 10 ..mu..A. The recently constructed AGS source, which is similar to Haeberli's system, has reached peak beam currents in excess of 25 ..mu..A, while operating in the pulsed mode. Standard operation of the AGS machine is 10 ..mu..A in beam pulses of 0.5 ms each two seconds. These intense beams have been achieved by cooling the atomic beam from room temperature to 110/sup 0/K and by increasing the cesium ion current from 2 to 3 mA to the 10 to 15 mA level. Higher polarized beam currents are expected with relatively simple modifications in the design.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5362522
- Report Number(s):
- BNL-34030; CONF-831180-16; ON: DE84004177
- Country of Publication:
- United States
- Language:
- English
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