Top stringer in a drift chamber for CLAS12 project

A top stringer work instructions

The top stringer is responsible for

1- Dropping the wire that has a length extends from the top feed through to the bottom feed. The wire should have an additional length that has a range of 10-12" after the wire comes out of the bottom feed through.

2- crimp the pin that holder the wire in the top feed through.

3- Observe if any changes take place inside the chamber through the stringing time.

The top stringer has tools to drop that wire such as chains (hand made), a wire cutter, a crimper, torch, and a feeler gauge. A left is used to help the top stringer to reach the top of the chamber which is placed to take advantage of the gravity to vertically drop the wire inside it.

Procedure to drop the wire

The chamber is placed in a clean room, before the following the next procedure, the stringer is expected to follow all the clean room instructions and safety instructions to be in a clean and safe working environment.

1-

the bottom feed through has the same row and order number as the top one's numbers.