Present situations and perspectives on the advanced utilization of HANARO

Choi, Chang-Oong; Kim, Hark-Rho; Lee, Kye-hong; Lee, Choong-Sung; Sohn, Jae Min

doi:10.1016/s0921-4526(01)01052-3

Cited by 10 publications

(5 citation statements)

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“…In an effort to boost the nation's research capability, HANARO was conceived and constructed in the 1980s using domestic reactor technology from KAERI [4]. As a platform for nuclear basic researches in Korea, HANARO has been operated, and the functions of its systems have been improved continuously since its first criticality in February 1995; and it is now being successfully utilized in such areas as fuel and material irradiation tests, neutron beam research, radioisotopes production, neutron activation analysis, and neutron transmutation doping, etc.…”

Section: Hanaro and Irradiation Facilitiesmentioning

confidence: 99%

Neutron Irradiation of Electronic Materials at HANARO

Choo¹,

Cho²,

Jun³

et al. 2014

JAMP

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HANARO, a 30 MW open-pool type multipurpose research reactor, has been operated as a platform for nuclear researches in Korea, and irradiation facilities have been mainly utilized for various nuclear material irradiation tests requested by users. Although most irradiation tests have been related to national R&D relevant to nuclear power, demand for neutron irradiation of electromagnetic materials is increasing rapidly at HANARO. Another research reactor, which is named the KIJANG research reactor (KJRR), is under construction in Korea. KJRR is dedicated to increasing the national radio-isotopes supply capacity and to the irradiation facilities including Neutron Transmutation Doping (NTD) facilities for power semiconductor production in a large scale and fast neutron irradiation (FNI) facility for fast neutron irradiation. The NTD and FNI facilities in the KJRR reactor can be effectively utilized on the study of separated effect of thermal and fast neutron irradiations on the properties of electromagnetic materials. HANARO will also specialize more on irradiation research, including neutron irradiation of electronic materials. The research status and possibility of new electromagnetic materials using neutron irradiation at HANARO are surveyed to ascertain the utilization of neutron irradiation technology in electromagnetic material researches.

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Section: Hanaro and Irradiation Facilitiesmentioning

confidence: 99%

Neutron Irradiation of Electronic Materials at HANARO

Choo¹,

Cho²,

Jun³

et al. 2014

JAMP

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“…The High-Flux Advanced Neutron Application Reactor (HANARO), located at the Korea Atomic Energy Research Institute (KAERI) in Korea, has been operating as a platform for basic nuclear research in Korea, and the functions of its systems have been continuously improved since its first criticality in February 1995 [1]. Both the general design features and detailed information about this reactor are available on the HANARO homepage (http://hanaro.kaeri.re.kr).…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of HANARO Irradiation Capsule for Long-Term Irradiation Testing

Choo

Cho

Yang

et al. 2018

Science and Technology of Nuclear Installations

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As HANARO has been recently required to support new R&D relevant to future nuclear systems requiring much higher neutron fluence, two types of bottom rod tip of the capsule were preliminarily prepared. The first one is a conventional design made of STS304 and welded using a tungsten inert gas (TIG) welding method. The other is a new design made of STS316L and welded using electron beam (EB) welding to strengthen the fatigue property of the rod tip. During the out-pile testing, they failed after 40 and 203 days, respectively. The fracture surfaces were examined using microscopes and the maximal applied stresses were estimated. The combination of these stresses was proved to be sufficient to cause a fatigue failure of the rod tip of the capsule. Based on the failure analysis, an optimized design of the rod tip of the capsule was made for long-term irradiation testing. It was designed to improve the welding and fatigue properties, to decrease the applied stress on the rod tip, and to fundamentally eliminate the effect of residual stress due to welding. The newly designed capsule was safely out-pile-tested up to 450 days and will be utilized for HANARO irradiation testing.

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“…A hot wa ter pool layer with a depth of two me ters and a tem per a ture differ ence of about 5 °C in re la tion to the rest of the pool wa ter kept the bulk of the wa ter con fined un der neath it. Af ter the in tro duc tion of the HWLS, the ra di a tion level un der HANARO con tain ment de creased as much as 90% in com par i son to its pre vi ous sta tus [3] and [9]. Evi dently, this sim ple sys tem works by pre vent ing aero sol prop a ga tion out of the pool sur face wa ter.…”

Section: Introductionmentioning

confidence: 99%

Design and installation of a hot water layer system at the Tehran research reactor

et al. 2013

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A hot water layer system (HWLS) is a novel system for reducing radioactivity under research reactor containment. This system is particularly useful in pool-type research reactors or other light water reactors with an open pool surface. The main purpose of a HWLS is to provide more protection for operators and reactor personnel against undesired doses due to the radio- activity of the primary loop. This radioactivity originates mainly from the induced radioactivity contained within the cooling water or probable minute leaks of fuel elements. More importantly, the bothersome radioactivity is progressively proportional to reactor power and, thus, the HWLS is a partial solution for mitigating such problems when power upgrading is planned. Following a series of tests and checks for different parameters, a HWLS has been built and put into operation at the Tehran research reactor in 2009. It underwent a series of comprehensive tests for a period of 6 months. Within this time-frame, it was realized that the HWLS could provide a better protection for reactor personnel against prevailing radiation under containment. The system is especially suitable in cases of abnormality, e. g. the spread of fission products due to fuel failure, because it prevents the mixing of pollutants developed deep in the pool with the upper layer and thus mitigates widespread leakage of radioactivity

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Present situations and perspectives on the advanced utilization of HANARO

Cited by 10 publications

References 0 publications

Neutron Irradiation of Electronic Materials at HANARO

Neutron Irradiation of Electronic Materials at HANARO

Design Optimization of HANARO Irradiation Capsule for Long-Term Irradiation Testing

Design and installation of a hot water layer system at the Tehran research reactor

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