Luminositätsbestimmung am Experiment COSY-11: Vergleich verschiedener Methoden
Luminositätsbestimmung am Experiment COSY-11: Vergleich verschiedener Methoden
In this diploma thesis different methods for luminosity determination at the experiment COSY-11 have been analysed and compared with each other. COSY-II is located at, the proton accelerator and cooler synchrotron COSY in Jülich. The detector is placed behind an internal target (internal means that...
| Personal Name(s): | Pellmann, I.-A. (Corresponding author) |
|---|---|
| Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
| Imprint: |
Jülich
Forschungszentrum Jülich, Zentralbibliothek, Verlag
1999
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| Physical Description: |
II, 58 p. |
| Document Type: |
Report Book |
| Research Program: |
ohne Topic |
| Series Title: |
Berichte des Forschungszentrums Jülich
3686 |
| Link: |
OpenAccess OpenAccess |
| Publikationsportal JuSER |
|
In this diploma thesis different methods for luminosity determination at the experiment COSY-11 have been analysed and compared with each other. COSY-II is located at, the proton accelerator and cooler synchrotron COSY in Jülich. The detector is placed behind an internal target (internal means that the target is installed directly in the beampipe and always hit by the circulating beam). Luminosity can be determined using either beam and target characteristics or the analysis of interactions with known cross section. Here the interactions pp $\rightarrow$ pp and pp $\rightarrow$ d$\pi^{+}$ are analysed. The analysis of the latter interaction was used for luminosity determination at this experiment for the first time. Additionally a luminosity monitor, consisting of a multi wire proportional chamber in combination with scintillators, has been developed. Using this monitor during beamtime allows the observation of both the luminosity online and the interaction point of beam and target in the projection perpendicular to the beam direction. A program to analyse the data, as well as the Monte Carlo simulations, has been developed. First data have already been taken, which confirm the correct operation of the detector system. |