Drift time measurements in limited streamer tubes
نویسندگان
چکیده
منابع مشابه
The Limited Streamer Tubes of the Sld *
A large hadron calorimeter and muon tracking device using plastic streamer tubes has been constructed in the iron flux-return structure for the SLD detector at SLAC. Various studies of the operating characteristics of the streamer tubes of this system are presented. Emphasis is placed on the tracking capabilities of the device and on the optimization of the high voltage and readout electronics....
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Starting from the very beginning of their operation the efficiency of the RPC chambers in the BaBar Instrumented Flux Return (IFR) has suffered serious degradation. After intensive investigation, various remediation efforts had been carried out, but without success. As a result the BaBar collaboration decided to replace the dying barrel RPC chambers about two years ago. To study the feasibility...
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Position resolution and lifetime have been studied for one-atmosphere D\IE in half-inch diameter aluminum tube chambers operated in the limited streamer mode. The radial resolution was measured by timing to be CT, = 73 pm. The longitudinal resolution was measured by charge division to be < 0.3% of the wire length. No significant gain changes were seen after 12 C/cm. Submitted to Nuclear Instrum...
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Modern detectors such as ATLAS use pressurized drift tubes to minimize diffusion and achieve high coordinate accuracy. However, the coordinate accuracy depends on the exact knowledge of converting measured times into coordinates. Linear spacetime relationships are best for reconstruction, but difficult to achieve in the E ∝ 1 r field. Previous mixtures, which contained methane or other organic ...
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The aim of this project is the investigation of atomic properties of trans-einsteinium elements (Z > 99) in a buffergas cell. Of particular interest are measurements of ionic radii and bond length of simple molecular ions. Drift time measurements with which the ion mobility and in turn the ionic radii can be determined may present a direct access to investigate the increasing importance of rela...
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ژورنال
عنوان ژورنال: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
سال: 1988
ISSN: 0168-9002
DOI: 10.1016/0168-9002(88)90632-8