Abstract
Comment on “Unexpected reduction of rf spin resonance strength for stored deuteron beams”
Highlights
In a recent paper, Krisch et al [1] have reported an ‘‘unexpected reduction’’ of the spin-flip resonance width for a stored polarized deuteron beam, via studies performed using a radial field rf dipole spin flipper
I point out that the claim of an unexpected result in the above paper is invalid, because the authors employed a theoretical expression for the resonance width which did not account for all of the contributions to the spin flip induced by an rf dipole
I present the theoretical expressions for the spin-flip resonance width for an rf solenoid and rf dipole below, and discuss them in more detail later in this paper
Summary
Krisch et al [1] have reported an ‘‘unexpected reduction’’ of the spin-flip resonance width for a stored polarized deuteron beam, via studies performed using a radial field rf dipole spin flipper. I point out that the claim of an unexpected result in the above paper is invalid, because the authors employed a theoretical expression for the resonance width which did not account for all of the contributions to the spin flip induced by an rf dipole. I present the theoretical expressions for the spin-flip resonance width for an rf solenoid and rf dipole below, and discuss them in more detail later in this paper.
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