Initial Performance of the AGS Slow External Beam

Authors :: M. Q. Barton
J. D. Fox
J. W. Glenn
L. N. Blumberg
H. C. H. Hsieh
A. V. Soukas
R. J. Nawrocky
G. W. Bennett
Source :: IEEE Transactions on Nuclear Science. 16:234-241
Publication Year :: 1969
Publisher :: Institute of Electrical and Electronics Engineers (IEEE), 1969.
Abstract: The internal beam of the Brookhaven AGS has been extracted by exciting the third-integral nonlinear resonance at a horizontal tune of ?H = 8-2/3. The extraction efficiency is approximately 80% and the spill duration ~ 300 to 400 ms. The beam has been extracted over the energy range 20 to 29 GeV. Preliminary measurements of horizontal and vertical emittance give EH ? 0.036 ? in.-mrad and EV ? 0.09 ? in.-mrad. Intensity modulation of the spill is presently about 40%.