conventional acceleration 93
FIGURE 5.28
Schematic of a magnetron.
A schematic of a magnetron is shown in Fig.5.28.
A magnetron, in contrast to klystrons and IOTs, is not
an amplifier, but a generator, which starts from initial noise.
Therefore, the phase of the RF power generated by a magnetron is arbitrary in principle.
Correspondingly, one of the difficulties of using magnetrons in accelerators when more than one magnetron is required is the difficulty of phase-locking those devices.
5.4.4 Powering the accelerating structure
An accelerating structure of a linac or other accelerator is typically fueled by pulsed power RF tubes — klystrons.
RF power is transported from a klystron in a different
mode than that used for acceleration. Therefore, the RF cou,ULVORDGHGVWUXFWXUH
7( ZDYH
70 ZDYH
&RXSOLQJVORW
FIGURE 5.29
Feeding RF power into an accelerating structure. Field lines show
electric and magnetic fields of the corresponding cavity modes.
FIGURE 5.28
Schematic of a magnetron.
A schematic of a magnetron is shown in Fig.5.28.
A magnetron, in contrast to klystrons and IOTs, is not
an amplifier, but a generator, which starts from initial noise.
Therefore, the phase of the RF power generated by a magnetron is arbitrary in principle.
Correspondingly, one of the difficulties of using magnetrons in accelerators when more than one magnetron is required is the difficulty of phase-locking those devices.
5.4.4 Powering the accelerating structure
An accelerating structure of a linac or other accelerator is typically fueled by pulsed power RF tubes — klystrons.
RF power is transported from a klystron in a different
mode than that used for acceleration. Therefore, the RF cou,ULVORDGHGVWUXFWXUH
7( ZDYH
70 ZDYH
&RXSOLQJVORW
FIGURE 5.29
Feeding RF power into an accelerating structure. Field lines show
electric and magnetic fields of the corresponding cavity modes.