The Measurement of Spectral Characteristics and Composition of Radiation in Atlas With Medipix2-Usb Devices

Campbell, M.; Doležal, Z.; Greiffenberg, D.; Heijne, E.; Holý, T.; Idárraga, J.; Jakůbek, J.; Kral, V.; Králı́k, M.; Lebel, C.; Leroy, C.; Llopart, X.; Lord, G.; Maneuski, D.; Ouellette, Olivier; Sochor, V.; Pospı́šil, S.; Suk, M.; Tlustos, L.; Vykydal, Z.; Wilhelm, I.

doi:10.1142/9789812819093_0061

Cited by 10 publications

(12 citation statements)

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“…An example of such a distributable system with Pixelman software is the ATLAS-MPX network [8], which consists of a network of 16 Medipix detectors placed within the ATLAS detector cavern at CERN. The whole network is controlled from one computer running Linux with the Java Remote Control Application installed.…”

Section: Distributable Acquisition Softwarementioning

confidence: 99%

Pixelman: a multi-platform data acquisition and processing software package for Medipix2, Timepix and Medipix3 detectors

Tureček¹,

Holý²,

Jakůbek³

et al. 2011

J. Inst.

162

134

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The semiconductor pixel detectors Medipix2, Timepix and Medipix3 (256x256 square pixels, 55x55 µm each) are superior imaging devices in terms of spatial resolution, linearity and dynamic range. This makes them suitable for various applications such as radiography, neutronography, micro-tomography and X-ray dynamic defectoscopy. In order to control and manage such complex measurements a multi-platform software package for acquisition and data processing with a Java graphical user interface has been developed. The functionality of the original version of Pixelman package has been upgraded and extended to include the new medipix devices. The software package can be run on Microsoft Windows, Linux and Mac OS X operating systems. The architecture is very flexible and the functionality can be extended by plugins in C++, Java or combinations of both. The software package may be used as a distributed acquisition system using computers with different operating systems over a local network or the Internet.

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Section: Distributable Acquisition Softwarementioning

confidence: 99%

Pixelman: a multi-platform data acquisition and processing software package for Medipix2, Timepix and Medipix3 detectors

Tureček¹,

Holý²,

Jakůbek³

et al. 2011

J. Inst.

162

134

View full text Add to dashboard Cite

show abstract

“…Pulse height discriminators determine the input energy window and provide noise suppression. A counter in each pixel records interacting quanta of radiation, photons, neutrons, electrons, minimum ionizing particles, and ions with energy deposits falling within the preset energy window [3], [4].…”

Section: Introductionmentioning

confidence: 99%

“…The MPX pixel detector can be operated in tracking or counting mode [3], [4]. Every pixel records the number of hits within an adjustable time interval (acquisition time).…”

Section: Introductionmentioning

confidence: 99%

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MPX Detectors as LHC Luminosity Monitor

Sopczak,

Ali,

Asbah

et al. 2015

Preprint

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A network of 16 Medipix-2 (MPX) silicon pixel devices was installed in the ATLAS detector cavern at CERN. It was designed to measure the composition and spectral characteristics of the radiation field in the ATLAS experiment and its surroundings. This study demonstrates that the MPX network can also be used as a self-sufficient luminosity monitoring system. The MPX detectors collect data independently of the ATLAS data-recording chain, and thus they provide independent measurements of the bunch-integrated ATLAS/LHC luminosity. In particular, the MPX detectors located close enough to the primary interaction point are used to perform van der Meer calibration scans with high precision. Results from the luminosity monitoring are presented for 2012 data taken at √ s = 8 TeV proton-proton collisions. The characteristics of the LHC luminosity reduction rate are studied and the effects of beam-beam (burn-off) and beam-gas (single bunch) interactions are evaluated. The systematic variations observed in the MPX luminosity measurements are below 0.3% for one minute intervals.

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“…The data of the MPX devices is recorded in frames which contain the status of all the 65,536 pixels after a given exposure time of the order of 1 s to 100 s. The dead time after each frame is about 6 s for data readout. The MPX devices can effectively be used for continuous measurements of the composition of complex radiation fields [2]. A network of MPX devices was installed within the ATLAS experiment [3] at CERN.…”

Section: Introductionmentioning

confidence: 99%

Luminosity Monitoring in ATLAS with MPX Detectors

Sopczak

2013

Preprint

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The ATLAS-MPX detectors are based on the Medipix2 silicon devices designed by CERN for the detection of multiple types of radiation. Sixteen such detectors were successfully operated in the ATLAS detector at the LHC and collected data independently of the ATLAS datarecording chain from 2008 to 2013. Each ATLAS-MPX detector provides separate measurements of the bunch-integrated LHC luminosity. An internal consistency for luminosity monitoring of about 2% was demonstrated. In addition, the MPX devices close to the beam are sensitive enough to provide relative-luminosity measurements during van der Meer calibration scans, in a lowluminosity regime that lies below the sensitivity of the ATLAS calorimeter-based bunch-integrating luminometers. Preliminary results from these luminosity studies are presented for 2012 data taken at √ s = 8 TeV proton-proton collisions.

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The Measurement of Spectral Characteristics and Composition of Radiation in Atlas With Medipix2-Usb Devices

Cited by 10 publications

References 0 publications

Pixelman: a multi-platform data acquisition and processing software package for Medipix2, Timepix and Medipix3 detectors

Pixelman: a multi-platform data acquisition and processing software package for Medipix2, Timepix and Medipix3 detectors

MPX Detectors as LHC Luminosity Monitor

Luminosity Monitoring in ATLAS with MPX Detectors

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