Fluctuations and the most probable values of relativistic charged particle energy loss in thin gas layers

Ermilova, V.C.; Kotenko, L.P.; Merzon, G. I.

doi:10.1016/0029-554x(77)90586-9

Cited by 70 publications

(12 citation statements)

References 19 publications

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“…Nevertheless, there are still persistent discrepancies between the predicted relativistic rise including density effect corrections [30] and results of measurements which show systematically smaller values [26,29,31]. Also, the predicted increase of the relativistic rise with reduced sample size [6,24,26,32] was not confirmed experimentally. This subject will be discussed in more detail in connection with "longitudinal drift".…”

Section: High Resolution Ionization Samplingmentioning

confidence: 78%

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Progress in particle identification by ionization sampling

Lehraus

1983

Nuclear Instruments and Methods in Physics Research

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The present generation of large scale dE/dx detectors was conceived in the mid-seventies. In fixed target physics applications (EPI, ISIS) the achieved particle identification efficiency allows for ¢r/K separation in the relativistic rise region. In the family of compact colliding beam detectors (e.g. AFS, ARGUS, CLEO, JADE, TPC, UAI), only the LBL TPC performance was so far sufficient for operation beyond the minimum of ionization. New central detectors foreseen for experiments in near future (LEP) should be more performing and will require resolutions which are at the limits imposed by systematic higher order effects. Influence of various design parameters on the optimization of the dE/dx sampling performance is discussed, supported by recent result from measurements of full-scale detector segments and including tests using ionized tracks generated by pulsed UV lasers. Merits of longitudinal drift and fine sampling are compared to results obtained by classical charge integration,

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Section: High Resolution Ionization Samplingmentioning

confidence: 78%

“…Fluctuations of the ionization energy loss in thin absorbers and their influence on the detector design were extensively treated theoretically and experimentally [6,[23][24][25][26][27][28][29]. Results obtained in large detectors under very clean conditions (selected tracks, no background, etc.)…”

Section: High Resolution Ionization Samplingmentioning

confidence: 99%

Progress in particle identification by ionization sampling

Lehraus

1983

Nuclear Instruments and Methods in Physics Research

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“…As there are large fluctuations in the energy loss per impact, measured energy losses are broader than expected by a statistical variance only [10]. As there are large fluctuations in the energy loss per impact, measured energy losses are broader than expected by a statistical variance only [10].…”

Section: Number Of Ion Pairs Createdmentioning

confidence: 81%

1 Gas Filled Detectors

1997

Experimental Techniques in Nuclear Physics

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V. Low pressure gas detectors 42 Α. Parallel plate avalanche chambers 42 Β. Low pressure multiwire proportional counters 45 C. Low pressure multi-step detectors 45 VI. Gas microstrip detectors 46 A. Description 46 B. Influence of the substrate and nature of electrodes 48 C. Performances 49 VII. Conclusion 51 References 52 Unauthenticated Download Date | 6/13/16 9:24 AM Gas Filled Detectors 13number of primary pairs. In the absence of other effects, ions will rapidly lose their energy by multiple collisions with gas molecules while electrons will diffuse in the medium.

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“…They are based on the well-proven Geant3 [9] detector simulation package with additional code [10] to include TR photon generation and absorption [11] and to improve dE=dX Landau-fluctuations in thin gas layers [12]. The beam-test data are used to tune the MC parameters to describe our detector specifications.…”

Section: Geant3 Trd Simulationmentioning

confidence: 99%