Abstract
The Spallation Neutron Source project includes a superconducting linac section in the energy range from 186 MeV to 1000 MeV. For this energy range two types of cavities are needed with geometrical β values of β=0.61 and β=0.81. An aggressive cavity prototyping program is being pursued at Jefferson Lab, which calls for fabricating and testing four β=0.61 cavities and two β=0.81 cavities. Both types consist of six cells made from high purity niobium and feature one HOM coupler of the TESLA type on each beam pipe and a port for a high power coaxial input coupler. Three of the four β=0.61 cavities will be used for a cryomodule test at the end of 2001. Two cavities of each type have been fabricated and the first tests on both cavities exceeded the design values for gradient and Q value: Eacc = 10.1 MV/m and Q = 5×109 at 2.1 K for the β=0.61 and Eacc = 12.5 MV/m and Q = 5×109 at 2.1 K for the β=0.81.
Original language | English |
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Pages | 484-486 |
Number of pages | 3 |
State | Published - 2001 |
Event | 2001 Particle Accelerator Conference - Chicago, IL, United States Duration: Jun 18 2001 → Jun 22 2001 |
Conference
Conference | 2001 Particle Accelerator Conference |
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Country/Territory | United States |
City | Chicago, IL |
Period | 06/18/01 → 06/22/01 |