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Data analysis of the FIC detector at the n_TOF facility

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D. Karadimos, K. Ioannides, P. Assimakopoulos, N. Tsagas, P. Paulopoulos, V. Vlahoudis, P. Cennini, V. Ketlerov, V. Konovalov, K. Stamoulis, D. Karamanis
D. Karadimos, K. Ioannides, P. Assimakopoulos, N. Tsagas, P. Paulopoulos, V. Vlahoudis, P. Cennini, V. Ketlerov, V. Konovalov, K. Stamoulis, D. Karamanis

Abstract


The analysis technique applied to the data from the FIC (Fast Induction Chamber) detector at the n_TOF facility is presented here. The measurements took place at the installation of CERN in Geneva. The detector was placed in front of the neutron beam for the determination of the neutron induced fission cross-section of various isotopes of the Th cycle. For the data acquisition, several fADC (flash Analog to Digital Converter) channels were used. This facilitated the detailed off-line analysis of data since all information was stored in the computer. The analysis of the data aimed at the discrimination of fission events. For this end we had to deal with three main issues: (1) The subtraction of the background, (2) the fitting of the pulses and (3) the automation of the process. The analysis pertaining to these issues will be further elucidated here.


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References


CERN n_TOF Facility: Performance Report. n_TOF collaboration.

C. Rubbia et al., Conceptual Design of a Fast Neutron Operated High Power Energy Amplifier, CERN/AT/95-44 (ET), (29 September 1995); see also C. Rubbia, A High Gain Energy Amplifier Operated with fast Neutrons, AIP Conference Proc. 346, Int. Conf. on ADT Technologies and Applications, Las Vegas, (1994). For more details on the TRU's incineration see also C. Rubbia et al., Fast Neutron Incineration in the Energy Amplifier as Alternative to Geologic Storage: the case of Spain, CERN report CERN/LHC/97-01 (EET), Geneva, (17 February 1997) and C. Rubbia et al., A realistic Plutonium elimination scheme with Energy Amplifiers and Thorium-Plutonium Fuel, CERN report CERN/AT/95-53_(ET), Geneva, (12 December 1995)

ENDF / B6, OECD ΝΕΑ Data Bank; IAEA-NDS-110, IAEA Nuclear Data Section, Viena, Austria.

JENDL / Nuclear Data Evaluation Research Group. Japan Atomic Energy Research and Development Agency (JAEA) http://wwwndc.tokai.jaeri.go.jp/

ROOT. An Object Oriented Data Analysis Framework, http://root.cern.ch/

MINUIT - CERN Program Library entry D506, CERN, Geneva 1994




DOI: http://dx.doi.org/10.12681/hnps.2265

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Copyright (c) 2019 D. Karadimos, K. Ioannides, P. Assimakopoulos, N. Tsagas, P. Paulopoulos, V. Vlahoudis, P. Cennini, V. Ketlerov, V. Konovalov, K. Stamoulis, D. Karamanis

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