Last change
on this file since 17 was
17,
checked in by zhangj, 11 years ago
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To have a stable version on the server.
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Property svn:executable set to
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File size:
453 bytes
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1 | function tau_q = physics_quantumlifetime(epsilon_RF,sigma_epsilon,tau_epsilon) |
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2 | % physics_quantum_lifetime - computes quantum lifetime |
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3 | % |
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4 | % INPUTS |
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5 | % 1. epsilon_RF - RF acceptance |
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6 | % 2. sigma_epsilon - Energy spread |
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7 | % 3. tau_epsilon - Longitudinal damping time |
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8 | % |
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9 | % OUPUTS |
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10 | % 1. tau_q - Quantum lifetime in s |
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11 | % |
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12 | % See Also ... |
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13 | |
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14 | % |
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15 | % Written by Laurent S. Nadolski |
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16 | |
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17 | xi = power(epsilon_RF,2)/2./power(sigma_epsilon,2); |
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18 | |
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19 | tau_q = tau_epsilon/2./xi.*exp(xi); |
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