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X-ray transition radiation can be used to measure the Lorentz factor of relativistic particles. Standard transition radiation detectors (TRDs) typically incorporate thin plastic foil radiators and gas-filled x-ray detectors, and are…

High Energy Physics - Experiment · Physics 2009-11-07 Gary L. Case , P. Parker Altice , Michael L. Cherry , Joachim Isbert , John W. Mitchell , Donald Patterson

X-ray transition radiation can be used to measure the Lorentz factor of relativistic particles. At energies approaching gamma = E/mc^2 = 10^5, transition radiation detectors (TRDs) can be optimized by using thick (sim 5 - 10 mil) foils with…

Astrophysics · Physics 2009-11-07 M. L. Cherry , G. L. Case

This work is dedicated to the study of a technique for hadron identification in the TeV momentum range, based on the simultaneous measurement of the energies and of the emission angles of the Transition Radiation (TR) X-rays with respect to…

Transition Radiation (TR) plays an important role in particle identification in high-energy physics and its characteristics provide a feasible method of energy calibration in the energy range up to 10 TeV, which is of interest for dark…

Instrumentation and Methods for Astrophysics · Physics 2020-04-06 Bo Huang , Hongbang Liu , Xuefeng Huang , Ming Xu , Yongwei Dong , Xiaotong Wei , Xiwen Liu , Huanbo Feng , Qinhe Yang , Jianyu Gu , Shuai Chen , Xiaochuan Xie , Jin Zhang , Yongbo Huang , Enwei Liang

A Transition Radiation Detector (TRD) has been designed to improve the electron identification and trigger capability of the ALICE experiment at the Large Hadron Collider (LHC) at CERN. We present results from tests of a prototype of the…

We review the basic features of transition radiation and how they are used for the design of modern Transition Radiation Detectors (TRD). The discussion will include the various realizations of radiators as well as a discussion of the…

Instrumentation and Detectors · Physics 2015-06-03 A. Andronic , J. P. Wessels

We present measurements of the spectral distribution of transition radiation generated by electrons of momentum 1 to 10 GeV/c in different radiator types. We investigate periodic foil radiators and irregular foam and fiber materials. The…

Instrumentation and Detectors · Physics 2019-08-14 A. Andronic

Since May 2011 the AMS-02 experiment is installed on the International Space Station and is observing cosmic radiation. It consists of several state-of-the-art sub-detectors, which redundantly measure charge and energy of traversing…

Instrumentation and Methods for Astrophysics · Physics 2015-01-09 Andreas Obermeier , Michael Korsmeier

For cosmic particle spectroscopy on the International Space Station the AMS experiment will be equipped with a Transition Radiation Detector (TRD) to improve particle identification. The TRD has 20 layers of fleece radiator with Xe/CO2…

A full simulation of a transition radiation detector (TRD) based on the GEANT, GARFIELD, MAGBOLTZ and HEED codes has been developed. This simulation can be used to study and develop TRD for high energy particle identification using either…

Computational Physics · Physics 2016-09-08 M. N. Mazziotta

The Transition Radiation Detector (TRD) was designed and built to enhance the capabilities of the ALICE detector at the Large Hadron Collider (LHC). While aimed at providing electron identification and triggering, the TRD also contributes…

Instrumentation and Detectors · Physics 2019-01-18 ALICE Collaboration

Operating conditions and challenging demands of present and future accelerator experiments result in new requirements on detector systems. There are many ongoing activities aimed to develop new technologies and to improve the properties of…

The Transition Radiation Detector (TRD) provides particle identification in the ALICE central barrel. In particular, it allows electron identification via the measurement of transition radiation for $\rm p >$ 1 GeV/$c$, where pions can no…

Instrumentation and Detectors · Physics 2019-08-21 Yvonne Pachmayer

The ATLAS Transition Radiation Tracker (TRT) is the outermost of the three sub-systems of the ATLAS Inner Detector at the Large Hadron Collider at CERN. In addition to its tracking capabilities, the TRT provides particle identification…

Instrumentation and Detectors · Physics 2019-08-13 E. Hines

The ALICE Transition Radiation Detector (TRD) significantly enlarges the scope of physics observables studied in ALICE, because it allows due to its electron identification capability to measure open heavy-flavour production and quarkonium…

Nuclear Experiment · Physics 2019-08-14 Yvonne Pachmayer

Transition Radiation Detectors (TRDs) are useful for electron identification and hadron suppression in high energy nuclear and particle physics experiments. Conventional wire-chamber TRDs face operational limitations due to space charge…

We present measurements of the transition radiation (TR) spectrum produced in an irregular radiator at different electron momenta. The data are compared to simulations of TR from a regular radiator.

Instrumentation and Detectors · Physics 2019-08-14 O. Busch

Coherent transition radiation (CTR) from relativistic electron beam interaction with an overdense plasma foil is investigated by making use of two-dimensional particle-in-cell simulations. Well-defined single electron beam either of uniform…

Plasma Physics · Physics 2019-02-14 W. J. Ding , F. Y. Li , S. M. Weng , P. Bai , Z. M. Sheng

In order to evaluate the response to cosmic-ray nuclei of a Compton-Scatter Transition Radiation Detector in the proposed ACCESS space-based mission, a hybrid Monte Carlo simulation using GEANT3 and an external transition radiation (TR)…

Instrumentation and Detectors · Physics 2009-11-11 John F. Krizmanic , Michael L. Cherry , Robert E. Streitmatter

The Transition Radiation Detector (TRD) for the ALICE experiment at the Large Hadron Collider (LHC) identifies electrons in p+p and in the challenging high multiplicity environment of heavy-ion collisions and provides fast online tracking…

Nuclear Experiment · Physics 2019-08-13 M. J. Kweon
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