High-precision measurement of the electron drift velocity in Ne–

✍ Scribed by J. Wiechula; P. Braun-Munzinger; H. Daues; U. Frankenfeld; C. Garabatos; J. Hehner; R. Renfordt; H.R. Schmidt; H. Stelzer; D. Vranić

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 307 KB
• Volume: 548
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2005.05.031

✦ Synopsis

The baseline gas mixture which will be used in the ALICE TPC is 90% Ne and 10%

CO

2

. The change of the drift velocity due to changes of the

CO

2

concentration as well as

N

2

addition has been studied in high-precision measurements at drift fields between 100 and 900V/cm. Also a precise absolute measurement of the drift velocity has been made. All measurements are compared with calculations.