The HERMES forward tracking chambers: construction, operation, and aging effects

详细信息    查看全文

• 作者：Brack ; J.T. ; Belz ; J.E. ; Clark ; S. ; Ely ; J. ; Fox ; B. ; Hofman ; G.J. ; Kinney ; E.R. ; Mercer ; D.J. ; Rakness ; G. ; et. al.
• 关键词：29.40.Cs ; 07.89.+b ; Wire chamber ; CF₄ gas ; Aging studies Radiation damage ; HERMES spectrometer ; Resolution studies
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2001
• 出版时间：August 1, 2001
• 年：2001
• 卷：469
• 期：1
• 页码：47-54
• 全文大小：208 K

文摘

The design, construction and operation of the HERMES forward (front) tracking chambers and associated electronics are described. Resolution and limited aging tests have been performed on these drift chambers, which use an Ar/CF₄/CO₂ (90:5:5) gas mixture. No degradation in chamber performance has been observed for a cumulative charge in excess of 9C/cm.