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Superconducting RF cavities for High Current Energy Recovery Linacs

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Injector & Linac<br />

S<strong>RF</strong> Injector<br />

S<strong>RF</strong> Cavity<br />

• Generation of ampere class<br />

beam CW<br />

• Cathode Issues and Isolation<br />

• E z at the cathode<br />

• Low ɛ x/y & δE/E<br />

• Strong Coupling Q ext ∼ 10 4<br />

• <strong>High</strong> Q ext ⇒ Lorentz <strong>for</strong>ce<br />

detuning & microphonics<br />

• HOM Power & extraction<br />

• Multibunch Instabilities (x20<br />

state-of-the-art)<br />

• Field Emission (Q 0 )

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