Slide2:
Cleaning of components at DESY
Rough cleaning
large components modified car wash
Small components modified dish washer
Fine cleaning
ultrasonic cleaning
rinsing with ultra pure water
Drying
in class 10 (ASTM) atmosphere
Final cleaning
Air flow cleaning and particle control Cleaning sequences
Slide3:
Cleaning procedure of power couplers Status 2004 “ standard” cleaning (StC) for test of cold parts
in respect of particle contamination
Slide4:
Definition of ultra pure water
Slide5:
Test on cleaning procedure
Nb sample polluted with grease and oil Not efficient cleaning After Ultrasonic cleaning with TICOPUR 33 Quality check of degreasing
Slide6:
Test Sequence for cleaning method of flanges
Ultrasonic cleaning and rinsing in ultra pure water
Sonosys megasonic® cleaning hand held single cell
DESY standard Process
(Ultrasonic cleaning- Ultra pure water rinsing
and blowing with ionized Nitrogen (Pulsed gun) Quality check of cleaning processes
Slide7:
Resistance:
measured in rinsing water of inside of power coupler cold part
QC documentation
2) Particles:
<10 counts / min (total Canal 0,3 µm and larger)
Measured before installation
3) on Test stand
4) and after installation
Vacuum: See info MVS
Residual masses: See info MVS Acceptance of power coupler cold part
to be installed to ca cavity