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HDS at X-band. Parameters fixed in the optimization (same as in H60vg3): Frequency = 11.424 GHz Bunch charge = 7.5 * 10 9 * e= 1.2 nC a/lambda = 0.17 Transverse wake amplitude at the second bunch < 0.2 V/pC/mm/m Averaged loaded accelerating gradient = 55 MV/m
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HDS at X-band Parameters fixed in the optimization (same as in H60vg3): Frequency = 11.424 GHz Bunch charge = 7.5*109*e= 1.2 nC a/lambda = 0.17 Transverse wake amplitude at the second bunch < 0.2 V/pC/mm/m Averaged loaded accelerating gradient = 55 MV/m In order to have no more than 1 breakdown in 10 h: Pin * tP1/2 < 1100 [MW*ns1/2]
Parameters of X-band HDS of different length Ncells Type Eff Es_max dT_max Pin tp Nbunch Ncycle ( a1, a2; d1, d2) [%] [MV/m] [K] [MW] [ns] [0.1*lambda] 40 dT 33.2 151.9 12.0 64 300.0 220 13 (1.85,1.55;0.95,0.80) 41 dT 32.9 156.1 11.5 65 284.8 207 13 (1.85,1.55;0.90,0.75) 42 dT 34.0 162.5 10.9 68 258.9 200 12 (1.85,1.55;0.85,0.70) 43 dT 33.5 167.7 10.4 70 244.6 187 12 (1.85,1.55;0.80,0.65) 44 Es 33.6 147.7 12.5 66 277.6 195 13 (1.85,1.55;0.90,0.90) 45 Es 33.6 146.5 12.3 67 274.1 190 13 (1.85,1.55;0.95,0.90) 46 Es 33.4 168.7 14.2 73 227.3 168 12 (1.90,1.50;0.55,0.85) 47 dT 33.8 163.9 10.4 73 229.1 167 12 (1.85,1.55;0.80,0.70) 48 Es 33.9 160.3 10.8 73 227.1 163 12 (1.85,1.55;0.80,0.75) 49 Es 34.2 159.7 14.4 73 229.3 162 12 (1.90,1.50;0.70,0.95) 50 Es 33.3 165.8 10.2 76 211.6 148 12 (1.85,1.55;0.75,0.70) 51 Es 33.9 158.2 13.9 74 222.3 152 12 (1.90,1.50;0.75,0.95) 52 Es 33.7 155.3 14.1 74 221.4 148 12 (1.90,1.50;0.80,1.00) 53 Es 33.3 156.7 13.4 75 214.4 141 12 (1.90,1.50;0.80,0.95) 54 Es 32.9 154.2 13.5 75 212.5 136 12 (1.90,1.50;0.85,1.00) 55 Es 33.1 165.1 12.3 80 187.8 127 11 (1.90,1.50;0.75,0.85) 56 Es 32.6 169.4 11.8 82 179.9 120 11 (1.90,1.50;0.70,0.80) 57 Es 32.0 163.7 11.9 82 180.7 116 11 (1.90,1.50;0.80,0.85) 58 Es 31.5 168.0 11.4 84 173.8 110 11 (1.90,1.50;0.75,0.80) 59 Es 30.9 172.9 11.0 85 166.8 104 11 (1.90,1.50;0.70,0.75) 60 Es 30.3 177.0 14.3 86 163.1 99 11 (1.95,1.45;0.55,0.90)