D. phi. vertex drift chamber construction and test results

Conference · Wed May 01 00:00:00 EDT 1991

OSTI ID:5196550

Clark, A R; Goozen, F; Grudberg, P; Klopfenstein, C; Kerth, L T; Loken, S C; Oltman, E; Strovink, M; Trippe, T G

A jet-cell based vertex chamber has been built for the D{O} experiment at Fermilab and operated in a test beam there. Low drift velocity and diffusion properties were achieved using CO{sub 2}(95%)-ethane(5%) at atmospheric pressure. The drift velocity is found to be consistent with (9.74+8.68( E -1.25)) {mu}m/nsec where E is the electric field strength in (kV/cm < E z 1.6 kV/cm.) An intrinsic spatial resolution of 60 {mu}m or better for drift distances greater than 2 mm is measured. The track pair efficiency is estimated to be better than 90% for separations greater than 630 {mu}m. 8 refs., 6 figs., 1 tab.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5196550
• Report Number(s): LBL-31070; CONF-9105263-; ON: DE92000848
• Resource Relation: Conference: 5. Pisa meeting on advanced detectors, Isola d'Elba (Italy), 26-31 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DRIFT CHAMBERS
CONSTRUCTION
TESTING
DESIGN
DIFFUSION
ELECTRIC FIELDS
SPATIAL RESOLUTION
MEASURING INSTRUMENTS
MULTIWIRE PROPORTIONAL CHAMBERS
PROPORTIONAL COUNTERS
RADIATION DETECTORS
RESOLUTION
440104* - Radiation Instrumentation- High Energy Physics Instrumentation