Wire Procurement and Wire Joint Production Jack Fowler

Wire Procurement and Wire Joint Production Jack Fowler 26 September 2000

Sense Wire Procurement · Luma, Osram and Toshiba wires were evaluated · Toshiba was considered the highest quality from initial test · Two pre-series of wire have been procured from Toshiba · Both have been evaluated · One has been approved and is being used in production · Full production order being submitted · Audit of facility tentatively scheduled for Oct 2000 Fowler Duke HEP 26 September 2000

Evaluate Cleaning Effects · Evaluate the affects of cleaning the wire in ultrasonic cleaner after wire joint process · First evaluate any damage to the wire due to the cleaning · Second evaluate the effectiveness of the cleaning process · Samples were evaluated uncleaned, after 30 seconds, 1 minute, 5 minutes, and 10 minutes · 30 seconds was found to be as effective as longer cleanings Fowler Duke HEP 26 September 2000

Cleaning Results Uncleaned Fowler Duke HEP 30 seconds 26 September 2000

Cleaning Results 1 minute Fowler Duke HEP 5 minutes 26 September 2000

Cleaning Results 10 minutes Fowler Duke HEP Analysis of dark area 26 September 2000

Mass Spectrograph of “Dark Area” Fowler Duke HEP 26 September 2000

Diameter Analysis Fowler Duke HEP 26 September 2000

Evaluate Wire for Damage · Evaluate any damage of wire outside of the glass bead during the fusing process · No damage has been detected · Further testing will follow · Also evaluating the cleanliness of wire after the production process Fowler Duke HEP 26 September 2000

Production and Wire Analysis Results · · · Actual Wire Joints produced - 4606 single, 270 double Planned Wire Joints - 6500 single, 600 double Second wire joint station online in November 2000 Production goal 120 to 150 daily Wire meets specification based on our testing More studies on cleanliness after production planned Fowler Duke HEP 26 September 2000