Multi-element X-ray detection module

Function

Detection and spectrometry of hard X-ray radiation with the possibility of assembling of large area position-sensitive detectors.

Description

The module is a hybrid integrated circuit, manufactured by the thick film technology. 32 CdZnTe-detectors are fixed on the top surface of the ceramic substrate; these detectors provide high X-ray detection efficiency and allow operation under moderate cooling (to –30…–40) °Ñ). The design of module enables tight mounting for composing of detection plane the required size. The module is currently under development for the coded mask X-ray telescopes for the SRG/eROSITA/Lobster project.

Main characteristics

Detector size                                            4.0×4.0×2.5 mm

Number of detectors                                                        32

Module size                                       37.6×18.8×20.0 mm

Energy range                                                    10–150 keV

Energy resolution

(for energy) (FWHM)                        1.5 (10), 3.0 (60);

                                                                   6.0 (150) keV

Operating temperatures                                  –(35±5) °Ñ

Dead time of detection                                              20 μs

Power consumption, W                                                  0.2



X-ray detection modules


241Am X-ray spectrum


Cooperation

FGUP GIREDMET, Moscow

Contacts

Department of high-energy astrophysics
V.V. Akimov +7(495)333-40-44, vakimov@space.ru