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. The chamber is placed to take advantage of the gravity to drop the wire vertically inside it.

Procedure to drop the wire

1-

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