Frequency Measurements and Resonance Survey in the Electron Model Spiral Sector FFAG Accelerator

Technical Report · Fri Aug 30 04:00:00 EDT 1957

DOI:https://doi.org/10.2172/4337850· OSTI ID:4337850

Stump, R. ^[1]; Waldman, B. ^[2]

---

1. Univ. of Kansas, Lawrence, KS (United States)
2. University of Notre Dame, IN (United States)

Beam intensities, vertical and radial betatron oscillation frequencies, and stop bands in the tuning range of the spiral sector FFAG accelerator were measured. The machine is tunable from $$\nu_z$$ = 0.46 to 1.76 $$\nu_x$$ = 1.12 to 1.71. In this tuning region the resonances $$\nu_z$$ = 1, $$\nu_z$$ = 0.5, $$\nu_z$$ = 1.5, $$\nu_x$$ = 1.5, $$\nu_x$$ + $$\nu_z$$ = 2 and 2 $$\nu_x$$ + 2$$\nu_z$$ = 6 are observed to destroy the beam. Of these only $$\nu_z$$ = 1, $$\nu_z$$ = 0.5 and 2$$\nu_x$$ + 2$$\nu_z$$ = 6 cause complete loss of beam at all points in the available tuning range. The Walkinshaw resonance (2$$\nu_z$$ - $$\nu_x$$ = 0) appears as a minimum of beam intensity.

• Research Organization: Midwestern Universities Research Association (MURA), Madison, WI (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• NSA Number: NSA-11-013528
• OSTI ID: 4337850
• Report Number(s): MURA--361
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
ANALOG SYSTEMS
BEAMS
BETATRONS
CONFIGURATION
ELECTRON BEAMS
FFAG ACCELERATORS
FREQUENCY
LENSES
LOSSES
MAGNETIC FIELDS
MEASURED VALUES
OSCILLATIONS
RESONANCE
STABILITY