Measurements of angular distribution and spectrum of transition radiation with a GridPix detector

N L Belyaev ,V O Tikhomirov ,A A Savchenko ,S Yu Smirnov ,P Spinelli ,V Sosnovtsev ,J Kamiński ,K Filippov ,P Teterin ,S Konovalov ,M Strikhanov ,Y Smirnov ,D Krasnopevtsev ,F Loparco ,P Fusco ,E Shulga ,M L Cherry ,A Romaniouk ,C Rembser ,D Ponomarenko ,M N Mazziotta ,K Vorobev ,K Desch ,K Zhukov

doi:10.1088/1742-6596/934/1/012049

Abstract

In recent years, developments of gaseous detectors based on a combination of electron multiplication gap in the gas and pixel readout chips as a part of the anode plane (GasPixel detectors) reached a level where they can offer unique opportunities for particle detection. Transition radiation (TR) detectors based on this technology can be one of the possible applications. In this work, measurements of energy spectra and angular distributions of transition radiation photons produced by particles with different gamma factors made with a GridPix detector prototype are presented. The observed results are compared with theoretical predictions.

Highlights

GasPixel detector is one of the new promising technologies, which combines the properties of silicon and gaseous detectors
Developments of gaseous detectors based on a combination of electron multiplication gap in the gas and pixel readout chips as a part of the anode plane (GasPixel detectors) reached a level where they can offer unique opportunities for particle detection
Measurements of energy spectra and angular distributions of transition radiation photons produced by particles with different gamma factors made with a GridPix detector prototype are presented

Summary

Introduction

GasPixel detector is one of the new promising technologies, which combines the properties of silicon and gaseous detectors. Measurements of energy spectra and angular distributions of transition radiation photons produced by particles with different gamma factors made with a GridPix detector prototype are presented. Using a GridPix detector, it is possible to identify photons by measuring ionization clusters along a track and their distance from a track. Spectra and angular distributions of TR photons measured by a GridPix detector are presented.

Results

Conclusion