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