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Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 129: Beschleunigerphysik XVI (Poster)

T 129.17: Poster

Mittwoch, 6. März 2013, 16:45–19:00, HSZ 1.OG

Design and calibration of ultra-short, broadband (200nm - 12 µ m), single-shot spectrometer for ultrashort electron bunch durations diagnostics — •Omid Zarini, Alexander Debus, Michael Bussmann, Jurjen Couperous, Arie Irman, Wolfgang Seidel, and Ulrich Schramm — Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany

The properties of electron bunch based on the Laser-Wakefield accelerators (LWFA) vary from shot to shot due to changes in the environment, such as gas jet profile or laser pointing. In order to understand the properties of these ultra-short electron bunches like bunch duration and bunch substructure in the range of 0.7 to 40 fs we are building a broadband-spectrometer for measuring coherent and incoherent transition radiation (TR).

Our TR-spectrometer is able to measure the TR-spectrum from a thin Al-foil in a single shot experiment from UV (200 nm) to mid-IR (12 µ m) by means of a CCD detector for the UV to VIS range and two array detectors for the NIR and MIR range. In this poster we present our design and calibration results of the detectors.

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