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Scanditronix Usermeeting
June 2017 Kopenhagen
Re-engineering on an Ion Source Base
Scanditronix Usermeeting
June 2017 Kopenhagen
Heidelberg Ion Source MC32NI
Scanditronix Usermeeting
June 2017 Kopenhagen
Issue: Anode Base
• Finding the right drawings • Creation of an 3D-Model • 3D printing • Proof of plausibility
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Issue: Anode Base
• Is the outer ring really out of oxygen free copper or is Elmedur X possible?
• Mixing of materials with different thermal expansion rate could lead into bending or cracks
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Material: ElmedurX, Cowodur, Oxygenfree Copper?
• Comparing our „museum“ of Ion Sources and other stuff
• Polishing the parts and comparing with material samples from workshop
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Secret solder reservoir and gap precission
Capillary Effect Design
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Atmospheric condition soldering trys
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Choosing temperature gradient
950°C Surface disintegration (real datasheet value 893°C from company) ->ElmedurX is not an eutectic system. It is warm hardened
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Surface Preperation - Cleaning
Cleaning test with 1mol HCL for 100 hours -> No weight or size changes within tolerances
ElmedurX sample with nailpaint covers (thanks to our secretary Sandra) to measure thickness of plating
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Surface Preperation - Electroplating
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Choosing the right solder
• Success with „honey like“ solder
• Liquid solder flows to much during long heating and cooling time
Scanditronix Usermeeting
June 2017 Kopenhagen
Soldering
• Vacuum: 1x10-8mbar • Duration: Whole night • Temperature drift ±10°𝐶
(after reflectance / emittance calibration)
• Final temperature 810°C
MPI Kernphysik Heidelberg
Martin Beckmann
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Sucessful Soldering !!!
Gold is totally absorbed into the metallic crystal structure
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Pressure Testing Device
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Trial at Copenhagen by HRS
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Holgers Try
Scanditronix Usermeeting
June 2017 Kopenhagen
Before Automation
Special Thanks to: Precission Engineering Workshop DKFZ Heidelberg
Thank you for your attention
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