Theory, Design and Tests on a Prototype Module of a Compact ...

More documents

Recommendations

Info

88 5. RADIOFREQUENCY MEASUREMENT Figure 5.17. The bead pulling result after the first operation on all the CCs. Figure 5.18. The bead pulling result for the tuners positions of table 5.2. to keep the bump stop-b<strong>and</strong> always to relatively big values, keeping in mind that at the end of the tuning procedure it should has been possible to decrease the stop-b<strong>and</strong>s using the CCs tuning. The figure 5.17 shows the bead pulling measurement after that the CCs enter inside of +0.3 mm on the left side. The π/2 frequency was unchanged <strong>and</strong> the bump stop-b<strong>and</strong> increased to +270 kHz. It is clear that the intervention made worse the field level. This happened because the stop-b<strong>and</strong> was bigger than in the previous situation. In fact, the entity of the bump <strong>and</strong> tilt effects are directly related to the entity of the respectively stop-b<strong>and</strong>s. The bigger is the stop-b<strong>and</strong>, the bigger is the effect of the nearest modes on the field level of π/2 mode.
6. THE FINAL STEPS OF THE TUNING PROCEDURE 89 tank # cell type left [mm] right [mm] 1 AC +3.5 +7.9 CC +0.3 +7.0 2 AC +6.7 +6.2 CC +0.3 +7.0 3 AC +5.0 +6.2 CC +0.3 +7.0 4 AC out +4.4 CC +0.3 +7.0 Table 5.2. tuners positions for the bead pulling of figure 5.18. Figure 5.19. The first good bead pulling result. The figure 5.18 shows the bead pulling measurement after some interventions on the tuners resumed in the table 5.2. The π/2 frequency was 2996.96 MHz <strong>and</strong> SBB = +222 kHz. 6. The final steps of the tuning procedure It is clear from the previous section that the tuning procedure should be made by little steps in order to be sure to keep positive the two stop-b<strong>and</strong>s <strong>and</strong> to fully underst<strong>and</strong> the results on the field level. Unfortunately, sometimes the intervention on one tank has also effect on the near tanks <strong>and</strong> this implies that all the interventions must be careful made <strong>and</strong> without big displacements of the tuners. The figure 5.19 shows a bead pulling measurement 14 that was quite good since the field level was flat within ±5%. The π/2 frequency was 14 Note that the figure 5.19 is the output plot of the network analyzer. The scale is the same of the previous figures, the maximum being 8 divisions.
Page 1:
UNIVERSITÀ DEGLI STUDI DI NAPOLI F
Page 4 and 5:
ii CONTENTS List of Figures 105 Ack
Page 6 and 7:
iv INTRODUCTION In the state of art
Page 8 and 9:
2 1. INTRODUCTION TO THE HADRONTHER
Page 10 and 11:
Page 12 and 13:
Page 14 and 15:
8 2. LINAC AND SCL ACCELERATORS par
Page 16 and 17:
10 2. LINAC AND SCL ACCELERATORS wh
Page 18 and 19:
12 2. LINAC AND SCL ACCELERATORS at
Page 20 and 21:
14 2. LINAC AND SCL ACCELERATORS 2.
Page 22 and 23:
16 2. LINAC AND SCL ACCELERATORS f
Page 24 and 25:
18 2. LINAC AND SCL ACCELERATORS Fi
Page 26 and 27:
20 2. LINAC AND SCL ACCELERATORS re
Page 29 and 30:
CHAPTER 3 Design T
Page 31 and 32:
1. GLOBAL PARAMETERS OF THE ACCELER
Page 33 and 34:
2. ANALYSIS OF COUPLED CAVITIES 27
Page 35 and 36:
3. SINGLE CAVITY DESIGN 29 Spice ha
Page 37 and 38:
20mA 15mA 10mA 5mA 3. SINGLE CAVITY
Page 39 and 40:
3. SINGLE CAVITY DESIGN 33 • HFSS
Page 41 and 42:
4. BRIDGE COUPLERS DESIGN 35 4. Bri
Page 43 and 44: 5. COUPLING BETWEEN WAVEGUIDE AND B
Page 49: 5. COUPLING BETWEEN WAVEGUIDE AND B
Page 52 and 53: 46 4. CIRCUIT MODEL where the matri
Page 54 and 55: 48 4. CIRCUIT MODEL For the latest
Page 56 and 57: 50 4. CIRCUIT MODEL left side of th
Page 58 and 59: 52 4. CIRCUIT MODEL and</st
Page 60 and 61: 54 4. CIRCUIT MODEL Under this hypo
Page 62 and 63: 56 4. CIRCUIT MODEL matrix of the w
Page 64 and 65: 58 4. CIRCUIT MODEL For the derivat
Page 66 and 67: 60 4. CIRCUIT MODEL Remembering the
Page 68 and 69: 62 4. CIRCUIT MODEL the bars is pro
Page 70 and 71: 64 4. CIRCUIT MODEL is unitary, one
Page 72 and 73: 66 4. CIRCUIT MODEL 120 100 80 60 4
Page 74 and 75: 68 5. RADIOFREQUENCY MEASUREMENT Ri
Page 76 and 77: 70 5. RADIOFREQUENCY MEASUREMENT Fi
Page 78 and 79: 72 5. RADIOFREQUENCY MEASUREMENT re
Page 80 and 81: 74 5. RADIOFREQUENCY MEASUREMENT de
Page 82 and 83: 76 5. RADIOFREQUENCY MEASUREMENT In
Page 84 and 85: 78 5. RADIOFREQUENCY MEASUREMENT me
Page 86 and 87: 80 5. RADIOFREQUENCY MEASUREMENT pe
Page 88 and 89: 82 5. RADIOFREQUENCY MEASUREMENT Al
Page 92 and 93: 86 5. RADIOFREQUENCY MEASUREMENT ta
Page 98 and 99: 92 5. RADIOFREQUENCY MEASUREMENT In
Page 100 and 101: 94 5. RADIOFREQUENCY MEASUREMENT We
Page 102 and 103: 96 5. RADIOFREQUENCY MEASUREMENT ra
Page 105 and 106: Conclusions and Ou
Page 107: CONCLUSIONS AND OUTLOOK 101 Finally
Page 110 and 111: 104 BIBLIOGRAPHY [23] U. Amaldi, B.
Page 112 and 113: 106 LIST OF FIGURES 2.12 Drawing of
Page 114 and 115: 108 LIST OF FIGURES methods, in add
Page 116: 110 ACKNOWLEDGEMENTS Naples, Italy
show all

Theory, Design and Tests on a Prototype Module of a Compact ...

Create successful ePaper yourself

Delete template?

Save as template?