Joint Institute for Nuclear Research (JINR), Joliot-Curie 6, Dubna, Moscow Region 141980, Russian Federation.
Deutsches Elektronen Synchrotron (DESY), Notkestraße 85, 22603 Hamburg, Germany.
J Synchrotron Radiat. 2019 Sep 1;26(Pt 5):1400-1405. doi: 10.1107/S1600577519006295. Epub 2019 Jul 12.
Detectors based on microchannel plates (MCPs) are used to detect radiation from free-electron lasers. Three MCP detectors have been developed by JINR for the European XFEL (SASE1, SASE2 and SASE3 lines). These detectors are designed to operate in a wide dynamic range from the level of spontaneous emission to the SASE saturation level (between a few nJ up to 25 mJ), in a wide wavelength range from 0.05 nm to 0.4 nm for SASE1 and SASE2, and from 0.4 nm to 4.43 nm for SASE3. The detectors measure photon pulse energies with an anode and a photodiode. The photon beam image is observed with an MCP imager with a phosphor screen. At present, the SASE1 and SASE3 MCP detectors are commissioned with XFEL beams. Calibration and first measurements of photon radiation in multibunch mode are performed with the SASE1 and SASE3 MCPs. The MCP detector for SASE2 and its electronics are installed in the XFEL tunnel, technically commissioned, and are now ready for acceptance tests with the X-ray beam.
基于微通道板（MCP）的探测器用于探测自由电子激光的辐射。JINR 为欧洲 XFEL 开发了三个 MCP 探测器（SASE1、SASE2 和 SASE3 线）。这些探测器旨在在从自发发射水平到 SASE 饱和水平（从几个 nJ 到 25 mJ）的宽动态范围内，在从 0.05nm 到 0.4nm（用于 SASE1 和 SASE2）和从 0.4nm 到 4.43nm（用于 SASE3）的宽波长范围内运行。探测器通过阳极和光电二极管测量光子脉冲能量。通过带有磷光体屏幕的 MCP 成像仪观察光子束图像。目前，SASE1 和 SASE3 MCP 探测器已与 XFEL 光束一起投入使用。正在使用 SASE1 和 SASE3 MCP 进行多束模式下的光子辐射校准和初步测量。SASE2 的 MCP 探测器及其电子设备已安装在 XFEL 隧道中，已进行技术调试，现已准备好接受 X 射线束的验收测试。
