EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2

The transfer function is a basic characteristic of every nuclear reactor. It describes how a perturbation at a given place and time influences the neutron flux. In case of a known perturbation, the determination of characteristic reactor parameters is possible. The present paper shows an experimenta...

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Main Authors: Hübner Sebastian, Knospe Alexander, Viebach Marco, Lange Carsten, Hurtado Antonio
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:EPJ Web of Conferences
Subjects:
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_21009.pdf
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author Hübner Sebastian
Knospe Alexander
Viebach Marco
Lange Carsten
Hurtado Antonio
author_facet Hübner Sebastian
Knospe Alexander
Viebach Marco
Lange Carsten
Hurtado Antonio
author_sort Hübner Sebastian
collection DOAJ
description The transfer function is a basic characteristic of every nuclear reactor. It describes how a perturbation at a given place and time influences the neutron flux. In case of a known perturbation, the determination of characteristic reactor parameters is possible. The present paper shows an experimental method to determine the gain of the zero-power reactor transfer function (ZPTF) of the AKR-2 reactor at TU Dresden and the comparison to the theoretical shape of the ZPTF derived from kinetic parameters simulated with MCNP. For the experiments, a high-precision linear motor axis is used to insert an oscillating perturbation acting at frequencies smaller than the lower bound of the plateau region of the ZPTF. For higher frequencies, a rotating absorber is used. This device emulates an absorber of variable strength. The reactor response is detected with a He-3 counter. The data evaluation shows good agreement between measured and corresponding theoretical values of the gain of the ZPTF.
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spelling doaj.art-d8c1852097054b139c2688bd34981b172022-12-21T19:43:22ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012472100910.1051/epjconf/202124721009epjconf_physor2020_21009EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2Hübner Sebastian0Knospe Alexander1Viebach Marco2Lange Carsten3Hurtado Antonio4Technische Universität Dresden (TU Dresden)Technische Universität Dresden (TU Dresden)Technische Universität Dresden (TU Dresden)Technische Universität Dresden (TU Dresden)Technische Universität Dresden (TU Dresden)The transfer function is a basic characteristic of every nuclear reactor. It describes how a perturbation at a given place and time influences the neutron flux. In case of a known perturbation, the determination of characteristic reactor parameters is possible. The present paper shows an experimental method to determine the gain of the zero-power reactor transfer function (ZPTF) of the AKR-2 reactor at TU Dresden and the comparison to the theoretical shape of the ZPTF derived from kinetic parameters simulated with MCNP. For the experiments, a high-precision linear motor axis is used to insert an oscillating perturbation acting at frequencies smaller than the lower bound of the plateau region of the ZPTF. For higher frequencies, a rotating absorber is used. This device emulates an absorber of variable strength. The reactor response is detected with a He-3 counter. The data evaluation shows good agreement between measured and corresponding theoretical values of the gain of the ZPTF.https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_21009.pdftransfer functionzero-power reactornoise analysistraining reactormcnp simulation
spellingShingle Hübner Sebastian
Knospe Alexander
Viebach Marco
Lange Carsten
Hurtado Antonio
EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
EPJ Web of Conferences
transfer function
zero-power reactor
noise analysis
training reactor
mcnp simulation
title EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
title_full EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
title_fullStr EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
title_full_unstemmed EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
title_short EXPERIMENTAL DETERMINATION OF THE ZERO POWER TRANSFER FUNCTION OF THE AKR-2
title_sort experimental determination of the zero power transfer function of the akr 2
topic transfer function
zero-power reactor
noise analysis
training reactor
mcnp simulation
url https://www.epj-conferences.org/articles/epjconf/pdf/2021/01/epjconf_physor2020_21009.pdf
work_keys_str_mv AT hubnersebastian experimentaldeterminationofthezeropowertransferfunctionoftheakr2
AT knospealexander experimentaldeterminationofthezeropowertransferfunctionoftheakr2
AT viebachmarco experimentaldeterminationofthezeropowertransferfunctionoftheakr2
AT langecarsten experimentaldeterminationofthezeropowertransferfunctionoftheakr2
AT hurtadoantonio experimentaldeterminationofthezeropowertransferfunctionoftheakr2