The Transition Radiation Detector (TRD) [1] is one of the main detector components of the ALICE experiment. It consists of 18 supermodules mounted cylindrical around the beam axis of the LHC. Every supermodule is assembled out of 30 Readout Chambers (ROC) of different types. These ROCs are equipped with front end electronics (FEE) and tested at the Institut für Kernphysik Frankfurt (IKF) [2]. I...

A new instrument for direct measurements of heavy cosmic ray nuclei (oxygen to iron) in the energy range from about 10 to several 10 eV is described. The detector consists of a counter telescope with a proportional tube array and a transition radiation detector. Single wire proportional tubes are used which allow operation in the low pressure environment of stratospheric balloons without requir...

A description, results and the current status of the track-finding routines developed for the Transition Radiation Detector (TRD) of the CBM experiment are presented. The trackfinding algorithm is based on the Kalman Filter and track following methods. Two different approaches have been used: a standalone TRD track-finder (using only TRD information) and an algorithm based on the information fr...

The ATLAS experiment at the CERN Large Hadron Collider (LHC) has started taking data in Autumn 2008 with the inauguration of the LHC. The determination of vertex position and charged particle tracks is performed in the Inner Detector which consists of pixel and microstrip silicon sensors and of straw drift tubes with transition radiation detector capability. All three subdetectors were run in s...

We show that a periodic metal-metal multilayer nanostructure can serve as an efficient source of hard x-ray transition radiation. Our research effort is aimed at developing an x-ray source for medical applications, which is based on using low-energy relativistic electrons. The approach toward choosing radiator-spacer couples for the generation of hard x-ray resonant transition radiation by few-...