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Reactor physics studies for the Adva...

Stankovskiy, Evgeny Yuryevich.

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Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project./
Author:	Stankovskiy, Evgeny Yuryevich.
Description:	157 p.
Notes:	Source: Dissertation Abstracts International, Volume: 69-06, Section: B, page: 3816.
Contained By:	Dissertation Abstracts International69-06B.
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3319141
ISBN:	9780549695196

Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project.
Stankovskiy, Evgeny Yuryevich.

Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project. - 157 p.

Source: Dissertation Abstracts International, Volume: 69-06, Section: B, page: 3816.

Thesis (Ph.D.)--University of Nevada, Las Vegas, 2008.

In the recently completed RACE Project of the AFCI, accelerator-driven subcritical systems (ADS) experiments were conducted to develop technology of coupling accelerators to nuclear reactors. In these experiments electron accelerators induced photon-neutron reactions in heavy-metal targets to initiate fission reactions in ADS. Although the Idaho State University (ISU) RACE ADS was constructed only to develop measurement techniques for advanced experiments, many reactor kinetics experiments were conducted there. In the research reported in this dissertation, a method was developed to calculate kinetics parameters for measurement and calculation of the reactivity of ADS, a safety parameter that is necessary for control and monitoring of power production.

ISBN: 9780549695196Subjects--Topical Terms:

649730
Mechanical engineering.

Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project.
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020 $a 9780549695196
035 $a (MiAaPQ)AAI3319141
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100 1 $a Stankovskiy, Evgeny Yuryevich. $3 3178588
245 1 0 $a Reactor physics studies for the Advanced Fuel Cycle Initiative (AFCI) Reactor -Accelerator Coupling Experiments (RACE) Project.
300 $a 157 p.
500 $a Source: Dissertation Abstracts International, Volume: 69-06, Section: B, page: 3816.
500 $a Adviser: Robert F. Boehm.
502 $a Thesis (Ph.D.)--University of Nevada, Las Vegas, 2008.
520 $a In the recently completed RACE Project of the AFCI, accelerator-driven subcritical systems (ADS) experiments were conducted to develop technology of coupling accelerators to nuclear reactors. In these experiments electron accelerators induced photon-neutron reactions in heavy-metal targets to initiate fission reactions in ADS. Although the Idaho State University (ISU) RACE ADS was constructed only to develop measurement techniques for advanced experiments, many reactor kinetics experiments were conducted there. In the research reported in this dissertation, a method was developed to calculate kinetics parameters for measurement and calculation of the reactivity of ADS, a safety parameter that is necessary for control and monitoring of power production.
520 $a Reactivity is measured in units of fraction of delayed versus prompt neutron from fission, a quantity that cannot be directly measured in far-subcritical reactors such as the ISU RACE configuration. A new technique is reported herein to calculate it accurately and to predict kinetic behavior of a far-subcritical ADS. Experiments conducted at ISU are first described and experimental data are presented before development of the kinetic theory used in the new computational method.
520 $a Because of the complexity of the ISU ADS, the Monte-Carlo method as applied in the MCNP code is most suitable for modeling reactor kinetics. However, the standard method of calculating the delayed neutron fraction produces inaccurate values. A new method was developed and used herein to evaluate actual experiments. An advantage of this method is that its efficiency is independent of the fission yield of delayed neutrons, which makes it suitable for fuel with a minor actinide component (e.g. transmutation fuels). The implementation of this method is based on a correlated sampling technique which allows the accurate evaluation of delayed and prompt neutrons. The validity of the obtained results is indicated by good agreement between experimental data and simulated responses of neutron detectors. The accuracy (0.2% uncertainty) of the calculated effective delayed neutron fraction, together with the exponential decay of neutron population in the reactor, allows the estimation of the mean neutron generation time to be performed with acceptable uncertainty (1.5%). Because the multiplication constant is a standard result with MCNP, the difference between dynamic reactivity (which is measured in the experiment) and static reactivity is clearly shown.
590 $a School code: 0506.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Nuclear engineering. $3 595435
650 4 $a Nuclear physics. $3 517741
690 $a 0548
690 $a 0552
690 $a 0610
710 2 $a University of Nevada, Las Vegas. $3 1017627
773 0 $t Dissertation Abstracts International $g 69-06B.
790 $a 0506
791 $a Ph.D.
792 $a 2008
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3319141