Electrodeless drift chamber in a flux of more than 10 5 particles per second per wire

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 238; no. 2; pp. 245 - 248
• Main Authors: Budagov, Yu.A., Nagaitsev, A.P., Omelyanenko, A.A., Semenov, A.A., Sergeev, S.V., Hlinka, V., Povinec, P., Sitar, B., Špalek, J., Artykov, A.M.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 1985
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/0168-9002(85)90461-9

Electrodeless drift chambers with drift lengths of 50 and 100 mm have been tested at a particle flux from 10 3 to 1.5 × 10 5/s per wire. The efficiency remains high (>99%) up to a flux of 7 × 10 4/s, but at a rate 1.5 × 10 5/s it drops to 70%. The space-time linearity and spatial resolution do not change with the count rate. The recovery time after a high particle intensity is about 20 min. The characteristics do not change within many days of operation, even after large changes in the particle flux.