High QE Photocathodes at FLASH.

descriptionPublicationkeyboard_double_arrow_right Conference object 01 Jan 2006 Germany, Italy English Publisher:European Physical Society Accelerator Group

Authors: D. Sertore; P. Michelato; L. Monaco; C. Pagani; J. H. Han; S. Schreiber;

handle: 2434/65695

High QE Photocathodes at FLASH.

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Abstract

The RF gun-based photoinjector of the VUV-FEL/TTF at DESY continues to use high quantum efficiency (QE) photocathodes produced at LASA, Milano. To study the photocathode behavior during beam operation, an online QE monitoring tool has been installed. In this paper, we present the hardware and software setup for the online QE measurement and the results so far obtained. The measured QEs are usually higher than at TTF phase 1. We compare the QE values taken in the RF gun with data measured just after production with a continuous UV light source.

Countries

Germany, Italy

Related Organizations

Helmholtz Association of German Research Centres
Germany
University of Milan
Italy
Deutsches Elektronen-Synchrotron DESY
Germany

Keywords

Free electron laser

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