Author/Authors :
Bytchkov، نويسنده , , A and Fateev، نويسنده , , A.A and Feldhaus، نويسنده , , J and Hahn، نويسنده , , U and Hesse، نويسنده , , M and Jastrow، نويسنده , , U and Kocharyan، نويسنده , , V and Lebedev، نويسنده , , N.I and Matyushevskiy، نويسنده , , E.A and Saldin، نويسنده , , E.L and Schneidmiller، نويسنده , , E.A and Shabunov، نويسنده , , A.V and Sytchev، نويسنده , , K.P and Tiedtke، نويسنده , , K and Treusch، نويسنده , , R and Yurkov، نويسنده ,
Abstract :
A nondestructive radiation detector unit is under construction at the TESLA Test Facility at DESY providing monitoring of the radiation (pulse energy, transverse intensity distribution, and statistical properties). The concept of the detector design is based on experience obtained during operation of TTF FEL, Phase 1. Key element of the detector is a wide dynamic range micro-channel plate (MCP) which detects scattered radiation from a thin gold wire crossing photon beam. Operating wavelength range of the detector is from 6 to 100 nm. An important feature of the MCP-based detector is that it is capable to cover all dynamic range of the radiation intensity, from the level of spontaneous emission up to the saturation level of SASE FEL.
