Supervisor: Amos Breskin

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Presentation transcript:

Supervisor: Amos Breskin Conception and preparation of a gaseous photon detector for UV light based on parallel plate avalanche chamber Armin Ridinger Thomas Baumgartner Mentor: Dirk Moermann Supervisor: Amos Breskin

Principles of Operation schematic plot of a gas avalanche anode wire

The construction of our Detector

The MicroCAT meshes we used

Number of photoelectrons leaving attracted by M1 in function of the Voltage on M1 1. Measurement in vacuum M1 M2 M3 +HV I Number of photoelectrons leaving, pass trough holes of the mesh and go to M3 in function of the Voltage on M3 M1 M2 M3 I +HV

2. Measurement in vacuum There is a constant Voltage of +800 Volts on M3. While we changed the Voltage on M1 M1 M2 M3 +/- HV I I +800 V Number of electrons who leave the photo cathode Number of electrons who get to M3