SRF2011 - List of Authors (Escherich, K.)

Paper	Title	Page
TUPO018	Update of the DESY Infrastructure for Cavity Preparation	401
	M. Schalwat, K. Escherich, N. Krupka, A. Matheisen, B. Petersen, N. Steinhau Kühl DESY, Hamburg, Germany
	The clean room is the main infrastructure for preparation of superconducting cavities at DESY, which was set up in the early 90th of the last century. This clean room was completely renovated in 2009. The ground plan of clean room class ISO 4 was enlarged from 20 to 53 m² and the areas of ISO 7 of the old clean room were upgraded to ISO 6 and ISO 5 standard. Areas for ultrasonic cleaning, ultrapure water rinsing and chemical surface treatment were upgraded to ISO 4 standards. Multiple vacuum connections were installed to reduce movement of cavities. A 120oC heating chamber was connected to the ISO 4 assembly area and allows the in situ bake out of multi cell super conducting resonators. For industrial cavity production it was shown that a high pressure rinsing unit driven by a turbine pump allows feeding several high pressure rinsing stands in parallel. For cost reduction of ultra pure water production and for increase of the amount of water in the cavity preparation cycle, a recirculation of rinsing water is under commissioning. Fixtures and tools for the assembly of the Beam position monitor and Quadrupol units (BQU) for the XFEL modules are installed and commissioned.

Paper

Title

Page

Update of the DESY Infrastructure for Cavity Preparation

401

M. Schalwat, K. Escherich, N. Krupka, A. Matheisen, B. Petersen, N. Steinhau Kühl
DESY, Hamburg, Germany

The clean room is the main infrastructure for preparation of superconducting cavities at DESY, which was set up in the early 90th of the last century. This clean room was completely renovated in 2009. The ground plan of clean room class ISO 4 was enlarged from 20 to 53 m² and the areas of ISO 7 of the old clean room were upgraded to ISO 6 and ISO 5 standard. Areas for ultrasonic cleaning, ultrapure water rinsing and chemical surface treatment were upgraded to ISO 4 standards. Multiple vacuum connections were installed to reduce movement of cavities. A 120oC heating chamber was connected to the ISO 4 assembly area and allows the in situ bake out of multi cell super conducting resonators. For industrial cavity production it was shown that a high pressure rinsing unit driven by a turbine pump allows feeding several high pressure rinsing stands in parallel. For cost reduction of ultra pure water production and for increase of the amount of water in the cavity preparation cycle, a recirculation of rinsing water is under commissioning. Fixtures and tools for the assembly of the Beam position monitor and Quadrupol units (BQU) for the XFEL modules are installed and commissioned.