Manufacturing of the Drift Tubes: Found Troubles and Given Solutions

Aitor Zugazaga (ESS-Bilbao)13 September 2011

DTL mini-workshop, CERN

Outline

1. Introduction of the DT’s

2. Handling and Cleaning Procedure

3. Machining Orientation Problems

Introduction of the DT’s

Body Cover

Stem

Introduction of the DT’s

Separation Ring Sleve

Inner Tube

Traction Screw Guide Washer Socket

Introduction of the DT’s

Introduction of the DT’s

• The Body and Cover pieces are unique. Each Drift Tube has its own Cover and Body Design.

Handling and Cleaning Procedure

• Handling of copper parts must be done with care of not touching them bare handed. Gloves must be used always.

• Copper parts must be stored in appropiate conditions, protecting them from atmosphere.

Handling and Cleaning Procedure

• Cooling Fluid must be Halogen and Silicone free.

• The clamping of copper must be done with care, due to the softness of the material.

• Also is important the election of the tool. Some tools produce vibrations during the machining operation producing irregular surfaces.

Handling and Cleaning Procedure

• After some tests it was found that the problem of the machining of the rounded part was the orientation of the copper rod.

• Changing the orientation, the tolerances for the critical parts were achieved.

Machining Orientation Problems

Machining Orientation Problems

111 Cover

112 Cover

Original

Modified

Manufacturing of the Drift Tubes: Found Troubles and Given Solutions

Aitor Zugazaga (ESS-Bilbao)13 September 2011

DTL mini-workshop, CERN