Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

Estimate of the neutron fields in ATLAS based on ATLAS-MPX detectors data

NázevTitle
Estimate of the neutron fields in ATLAS based on ATLAS-MPX detectors dataEstimate of the neutron fields in ATLAS based on ATLAS-MPX detectors data
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
J. Bouchami, F. Dallaire, A. Gutierrez, J. Idarraga, V. Král, C. Leroy, S. Picard, S. Pospíšil, O. Scallon, J. Šolc, M. Suk, D. Tureček, Z. Vykydal, J. Žemlička
DOIDOI
10.1088/1748-0221/6/01/C01042
Časopis / citaceJournal / citation
Journal of Instrumentation. 2011, 6 1-6. ISSN 1748-0221.
RokYear
2011
JazykLanguage
eng
WoSWoS
000291345600047
ScopusScopus
2-s2.0-79952660838
RIVRIV
RIV/68407700:21670/11:00177353!RIV12-MSM-21670___
ProjektProject
Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN; SLHC-PP - Přípravná fáze projektu Super LHCSLHC-PP - Preparatory Phase of the Large Hadron Collider Upgrade; Fundamentální experimenty ve fyzice mikrosvětaFundamental Experiments in Physics of Microworld; Referenční pracoviště pro kalibraci neutronových detektorů a jejich využití v částicových urychlovačových experimentechReference facility for calibration of neutron detectors for particle accelerator experiments; Přípravná fáze projektu Super LHCPreparatory Phase of the Large Hadron Collider Upgrade

AbstraktAbstract

The ATLAS-MPX detectors are based on Medipix2 devices covered with converting layers of 6LiF and polyethylene (PE) to increase their sensitivity to thermal and fast neutrons. The signature of particles interacting in a ATLAS-MPX detector are clusters of adjacent pixels with different size and form depending on their type, energy and incidence angle.The Medipix analysis framework (MAFalda) (based on the ROOT application) allows classification of particles into different categories using the geometrical parameters of the clusters. The pattern recognition obtained from the application of MAFalda was configured to distinguish the response of neutrons from other radiation. The neutron detection efficiency of ATLAS-MPX devices has been determined by the exposure of two detectors of reference to radionuclide sources of neutrons (252Cf and 241AmBe). With these results, an estimate of the neutrons fields produced at the devices locations during ATLAS operation was done.

The ATLAS-MPX detectors are based on Medipix2 devices covered with converting layers of 6LiF and polyethylene (PE) to increase their sensitivity to thermal and fast neutrons. The signature of particles interacting in a ATLAS-MPX detector are clusters of adjacent pixels with different size and form depending on their type, energy and incidence angle.The Medipix analysis framework (MAFalda) (based on the ROOT application) allows classification of particles into different categories using the geometrical parameters of the clusters. The pattern recognition obtained from the application of MAFalda was configured to distinguish the response of neutrons from other radiation. The neutron detection efficiency of ATLAS-MPX devices has been determined by the exposure of two detectors of reference to radionuclide sources of neutrons (252Cf and 241AmBe). With these results, an estimate of the neutrons fields produced at the devices locations during ATLAS operation was done.