Re. Pollock et al., CALIBRATION OF THE POLARIZATION OF A BEAM OF ARBITRARY ENERGY IN A STORAGE RING, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 55(6), 1997, pp. 7606-7611
With a storage ring synchrotron, two additional methods have become po
ssible to establish polarization standards at arbitrary energies, maki
ng use of the ease with which the energy of the stored beam can be cha
nged. Both methods yield the analyzing power of a reaction at one ener
gy in relation to the known analyzing power at a different energy. One
method involves ramping of the energy of a polarized beam up and down
; the other requires a polarized target. The two methods have been dem
onstrated in an experiment with the Indiana Cooler, and their relative
consistency has been established.