1. System layout in PS ring and possible evolution
Finemet Review
M.Haase September 14th

2. PS longitudinal damper cavity in SS02
The Cavity
Need no modification
The Gap Relay circuit and
Overvoltage protection circuit.
Need to redesigned
Cavity Structure
Need no modification
Amplifier support
Need to redesigned
For the
New Improved
Plug in amplifier

3. Gap relay circuit and Overvoltage protection circuit
We have indicated the following problems:
High beam induced voltage observed around 40 MHz.
Passive gap monitor has a resonance at 40MHz.
Instead we use the active gap monitor.
Gap Relay efficiency is not good enough.
PRESENT CIRCUIT

4. NEW IMPROVED AMPLIFIER
PRESENT INSTALATION
NEW AMPLIFIER
We use the same new plug in amplifier as provided in the PSB

5. NEW: AMPLIFIER DOCKING STATION
In the amplifier support we need:
New water distribution to the amplifier
New cabling to connect the amplifier
New 40V (amplifier) & 25V (driver) connective system
PRESENT AMPLIFIER SUPPORT

6. The shielding works very well to protect our amplifiers for radiation issues
But the access to the
amplifiers is very difficult!
The shielding is done with iron brick
L10cm x W10cm x H20cm weight ~15kg
Total ~500kg
The solution we design a shielding wall
that we can open the wall like a paddle
to simplify the access to the amplifier

7. Additional changes are necessary
Installing of new control cables for the
plug in amplifier from Building 151
to the Ring ~70m.
Additional a 25V Driver cable and
some spare cables
Replacing the Control chassis and control
electronics with the improved version.

8. Additional changes are necessary
WATER DISTRBUTION
Improvement of the exist main water distribution,
to handle better the water consumption
for the plug in amplifier and cavity.
(Pressure reducer and water flow detector)