The Medipix2-based network for measurement of spectral characteristics and composition of radiation in ATLAS detector

Vykydal, Z.; Bouchami, J.; Campbell, M.; Doležal, Z.; Fiederle, M.; Greiffenberg, D.; Gutiérrez, A.; Heijne, E.H.M.; Holý, T.; Idárraga, J.; Jakůbek, J.; Král, V.; Králı́k, M.; Lebel, C.; Leroy, C.; Llopart, X.; Maneuski, D.; Nessi, M.; O’Shea, V.; Platkevič, Michal; Pospı́šil, S.; Suk, M.; Tlustos, L.; Vichoudis, P.; Visschers, J.; Wilhelm, I.; Žemlička, J.

doi:10.1016/j.nima.2009.03.104

Cited by 33 publications

(20 citation statements)

References 5 publications

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“…The installation of this TPX3 device took place during the LHC winter shutdown 2017/2018 [6]. The TPX3 device is operated in addition to the previously installed network of double-layer Timepix (TPX) assemblies [12], [13]. An external trigger is used to relate the TPX3 data to the LHC orbit timing [6].…”

Section: Tpx3 Devicementioning

confidence: 99%

Timepix3 Luminosity Determination of 13-TeV Proton–Proton Collisions at the ATLAS Experiment

Sopczak

2020

IEEE Trans. Nucl. Sci.

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Medipix and Timepix devices, installed in the ATLAS cavern, have provided valuable complementary luminosity information. Results are presented from measurements with Timepix3 (TPX3) detectors. In contrast with previously employed frame-based data acquisition, the TPX3 detector remains active continuously, sending information on pixel hits as they occur. Hit-and cluster-counting methods were used for the luminosity determination of the LHC proton-proton collisions. The LHC luminosity versus time is determined using these two methods and fitted to a simple model, which incorporates luminosity reduction from single bunch and beam-beam interactions. The precision of the luminosity determination could be improved by counting the number of clusters, instead of just pixel hits. The internal precision and long-term stability of the TPX3 luminosity measurement are below 0.5%. TPX3, owing to its 1.56 ns timetagging, is able to resolve the time structure of the luminosity due to the collisions of individual proton bunches when integrated over an LHC fill.

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Section: Tpx3 Devicementioning

confidence: 99%

Timepix3 Luminosity Determination of 13-TeV Proton–Proton Collisions at the ATLAS Experiment

Sopczak

2020

IEEE Trans. Nucl. Sci.

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“…By coating different parts of the sensor with different converter and filter layers it is possible to gain some insight into the spectrum of the neutron flux. This approach has been extensively used in the ATLAS experiment [12] where 15 devices are positioned throughout the detector to monitor the instantaneous radiation field. A similar system of detectors is situated around the CMS experimental cavern.…”

Section: Neutron Monitoringmentioning

confidence: 99%

Medipix 3 and Timepix 2 Chip and Applications

Plackett¹,

Ballabriga²,

Campbell³

et al. 2011

Proceedings of 19th International Workshop on Vertex Detectors — PoS(VERTEX 2010)

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These proceedings describe the current status of the Medipix family of pixel readout chips. The current chips, Medipix2, Timepix and Medipix3 are described and their applications briefly summarised. A future readout chip Timepix2 is also discussed and two possible implementations are explored. The Medipix2 and Timepix chips have allowed a wide variety of fields to access hybrid pixel technology where it would otherwise have not been financially viable. This has lead to a very broad range of applications, including material analysis, medical imaging, sensor development, dosimitry, neutron monitoring and education. The success and maturity of the technology has also led to the chips being used to develop future systems within HEP, particularly the future LHCb pixel vertex tracker. * Speaker.

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“…SATRAM provides highsensitivity wide-dynamic range radiation monitoring enhanced with particle track visualization of the charged events and low-energy X-ray field along the satellite orbit. The Timepix detector [2] determines over a wide range of particle fluxes, energies and broad field of view [3] the composition (particle species) and spectral characterization (dE/dx) of the mixed field radiation environment [4]. The per-pixel energy sensitivity provides linear energy transfer (LET) spectra with enhanced particle-type resolving power and directional sensitivity for energetic charged particles.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Directional Visualization of Space Radiation Quanta on Low Earth Orbit with Timepix-based compact Spacecraft Payload

Granja¹

2015

Proceedings of the 23rd International Workshop on Vertex Detectors — PoS(Vertex2014)

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The Medipix2-based network for measurement of spectral characteristics and composition of radiation in ATLAS detector

Cited by 33 publications

References 5 publications

Timepix3 Luminosity Determination of 13-TeV Proton–Proton Collisions at the ATLAS Experiment

Timepix3 Luminosity Determination of 13-TeV Proton–Proton Collisions at the ATLAS Experiment

Medipix 3 and Timepix 2 Chip and Applications

Characterization and Directional Visualization of Space Radiation Quanta on Low Earth Orbit with Timepix-based compact Spacecraft Payload

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