Bridge coupled drift tube linacs

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:7138238

Liska, D; Smith, P; Carlisle, L; Larkin, T

Modern linac designs for treating radioactive waste achieve high proton currents through funneling at low energy, typically around 20 MeV. The resulting switch to a high-frequency accelerating structure poses severe performance and fabrication difficulties below 100 MeV. Above 100 MeV. proven coupled-cavity linacs (CCLS) am available. However, at 20 MeV one must choose between a high-frequency drift-tube linac (DTL) or a coupled-cavity linac with very short cells. Potential radiation damage from the CW beam, excessive RF power losses, multipactoring, and fabricability all enter into this decision. At Los Alamos, we have developed designs for a bridge-coupled DTL (BCDTL) that. like a CCL, uses lattice focusing elements and bridge couplers, but that unlike a CCL, accelerates the beam in simple. short, large-aperture DTL modules with no internal quadrupole focusing. Thus, the BCDTL consumes less power than the CCL linac without degrading beam performance and is simpler and cheaper to fabricate in the 20 to 100 MeV range.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7138238
• Report Number(s): LA-UR-92-3662; CONF-921116--17; ON: DE93003815
• Country of Publication: United States
• Language: English

Related Subjects

052001 -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ACCELERATORS
DESIGN
LINEAR ACCELERATORS
MATERIALS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
TRANSMUTATION
WASTES