Recent results & plans for the future on SLAC Damped Detuned Structures (DDS)

Conference · Tue Oct 01 04:00:00 EDT 1996

OSTI ID:489688

Kroll, N M; Jones, R M; Adolphsen, C ^[1]

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1. and others

The cells in the SLAC DDS are designed in such a way that the transverse modes excited by the beam are detuned in a Gaussian fashion so that destructive interference causes the wake function to decrease rapidly and smoothly. Moderate damping provided by four waveguide manifolds running along the outer wall of the accelerator is utilized to suppress the reappearance of the wake function at long ranges where the interference becomes constructive again. The newly developed spectral function method, involving a continuum of frequencies, is applied to analyze the wake function of the DDS I design and to study the dependence of the wake function on manifold termination. The wake function obtained with the actually realized manifold terminations is presented and compared to wake function measurements recently carried out at the ASSET facility installed in the SLAC LINAC.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (United States); California Univ., San Diego, La Jolla, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00515; FG03-93ER40759
• OSTI ID: 489688
• Report Number(s): SLAC-PUB--7387; CONF-9610210--23; ON: DE97006461
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
BEAM BUNCHING
DAMPING
ELECTRON BEAMS
INSTABILITY
PLASMA WAVES
STANFORD 20-GEV LINAC