Effect of a partial Siberian snake on an rf-induced'' depolarizing resonance

Journal Article · Tue Dec 15 00:00:00 EST 1992 · Physical Review A. General Physics; (United States)

DOI:https://doi.org/10.1103/PhysRevA.46.R7383· OSTI ID:6904200

Anferov, V A; Baiod, R; Chao, A W; Chu, C M; Courant, E D; Derbenev, Y S; Duryea, J; Krisch, A D; Minty, M G; Phelps, R A; Shoumkin, D S; Wong, V K ^[1]; Caussyn, D D; Ellison, M; Ellison, T J.P.; Lee, S Y; Rinckel, T; Sperisen, F; Stephenson, E J; von Przewoski, B ^[2] ; Wienands, U ^[3]; Ratner, L G ^[4]

---

1. Randall Laboratory of Physics, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)
2. Indiana University Cyclotron Facility, Bloomington, Indiana 47408-0768 (United States)
3. TRIUMF, Vancouver, British Columbia, V6T2A3 (Canada)
4. AGS Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

A recent experiment studied the effect of an rf solenoid magnet and a partial Siberian snake on a 120-MeV polarized proton beam. We measured the frequencies of the rf-induced''depolarizing resonance for different values of the snake strength; this frequency measurement determined the spin tune [nu][sub sp], which is the number of spin processions in one turn around the ring. A 4% snake increased the frequency of the rf-induced depolarizing resonance by the predicted 11 kHz and thus shifted the spin tune by the predicted [Delta][nu][sub sp]=0.006 88[plus minus]0.000 04; as expected the 4% snake also tilted the stable spin direction by more than 38[degree] from the vertical.

• OSTI ID: 6904200
• Journal Information: Physical Review A. General Physics; (United States), Vol. 46:12; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
POLARIZED BEAMS
SPIN ORIENTATION
PROTONS
CORRECTIONS
PRECESSION
RESONANCE
RF SYSTEMS
ROTATION
BARYONS
BEAMS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MOTION
NUCLEONS
ORIENTATION
430200* - Particle Accelerators- Beam Dynamics
Field Calculations
& Ion Optics