YOUNGMIN LEE

k722lym@kins.re.kr

Regional Workshop of Nuclear and Radiological Emergency Preparedness and Response

KINS, South Korea, June 8~19, 2014

Atomic Computerized Technical

Advisory System for a Radiological Emergency

Contents

Modules of AtomCARE

I

II

III

IV

Radiological Emergency Preparedness & Response Scheme

Environmental Radiation Monitoring

Activities of Emergency Exercise

Nuclear Power Plants in KOREA

` In operation

23 units

` Under

Construction

5 units

Yong-gwang

6 units

Kori 8 units

Ulchin 8 units

Wolseong

6 units

In Operation Under Construction

LILW Radioactive Waste

Disposal Facility

(Under construction)

Korea Institute of Nuclear Safety

Radiological Emergency Preparedness & Response Scheme

Korea Institute of Nuclear Safety

Ministry of Security and Public Administration

Emergency Classification Criteria

Class Criteria Alert

Site-area emergency

General emergency

• An emergency of which radiological impact arising from leakage of radioactive materials is expected to be limited to the building

of the nuclear facilities Ex) severe damages on the fuel claddings

• An emergency of which radiological impact arising from leakage of radioactive materials is expected to be limited to the site of

the nuclear facilities Ex) loss of coolant exceed the capacity of the charging pump

• An emergency of which radiological impact arising from leakage of radioactive materials is expected to reach the outside of the

nuclear facilities Ex) massive release of radioactive materials into the environment

Environmental Radiation Monitoring

http://IERNet.kins.re.kr/

Collects Environmental Radiation Levels (National Wide & Marine)

- Real time monitoring of nationwide environmental radiation levels

- 1 Central Monitoring Station / 14 Regional Monitoring Stations (CAMSNet)

- 108 Unmanned Monitoring Posts

- 3 Xenon Monitoring Station (meteorological monitoring posts, remote islands, army bases)

Detects any Abnormal Variations in Environmental Radiation Levels

Open to public using web & mobile phone application

Environmental Radiation Monitoring

Radiological Emergency Technical Advisory Center

Technical Advice on Emergency Management Dispatches the Off-Site Emergency Technical Support Team

- analyses the accident and manages the response actions by licensee

- monitors off-Site environmental radiation

- assesses the radiological consequences

makes recommendation for emergency response measures

Operates the Nuclear Emergency Management System (AtomCARE)

Korea Institute of Nuclear Safety

Radioactive Airborne Dust Sampling Aerial Survey Car-borne Survey

Mobile Monitoring Post In Situ Gamma Spectroscopy SIREN

Joint Radiological Environmental Monitoring

Korea Institute of Nuclear Safety

Functions of Emergency Management

Korea Institute of Nuclear Safety

Safety Information

Display System

Environmental Monitoring - Domestic

Monitoring and Detection

Accident Characterization and

Source Term Evaluation

Meteorological Data Acquisition

Emergency Characterization

Dose Assessment-Domestic

Protective Action Advice

Emergency Management

Cooperative Consequence

Management

Commands and Control

Consequence Management

IAEA early Notification convention

Dose Assessment - Global

- Displays safety parameter values

- Transmits in real time and stores the data

- Displays the parameters classified by critical safety functions

- Connects all 24 operating NPPs and HANARO

Collects & Analyzes Operational Information

SIDS (Safety Information Display System)

PWR PHWR

Korea Institute of Nuclear Safety

SIDS (Safety Information Display System)

Korea Institute of Nuclear Safety

Displays the parameters classified by critical safety functions

- ooooo

- oooodata

- oocritical safety functions

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SIDS (Safety Information Display System)

Korea Institute of Nuclear Safety

SIDS (Safety Information Display System)

Korea Institute of Nuclear Safety

SIDS (Safety Information Display System)

Korea Institute of Nuclear Safety

AINS (Automatic Information Notification System)

Automatically provides the warnings and/or alerts

1. Transmits automatic alarm signals to emergency response

personnel:

- A rapid change in power output, a reactor trip,

a station black out, or abnormal radiation levels

2. Notifies information about individual abnormal events to

emergency response personnel

abnormal signal

Korea Institute of Nuclear Safety

KINS KINS KINS

STES (Source Term Estimation System)

Korea Institute of Nuclear Safety

Analyzes the causes and current status of an accident

- Assesses the degree of reactor core damage

- Estimates the reduction factor & pathways of radioactive materials

- Estimates the amount of released radioactive materials

Reduction factor

Escape factor

Fraction of the F.P released from core or coolant

Estimates the Radiation Source Term (RTM &XSOR)

)( iiii EFRDFCRFFPITermSource -

Safety Parameter

Source Term

Collects Meteorological Information

1. 13 ~ 15 automatic weather stations in each

NPP site

2. Weather information every 10 minutes

3. Wind speed, direction, precipitation,

atmospheric stability

Generates 3-D Wind Fields

1. Altitudinal Range: 50 ~ 1500 m

2. Numerical Weather Prediction Data from KMA

REMDAS (Radiological Emergency Meteorological Data Acquisition System)

Korea Institute of Nuclear Safety

FADAS (Following Accident Dose Assessment System)

Korea Institute of Nuclear Safety

Evaluates the Resultant Dose & Effects

- Predicts the size of an affected area

- Evaluates the radiation dose for the public

Calculation Models - Random-walk diffusion model

- Volume equivalent numerical integration model

Input Data - Meteorological data (NWP and AWS data)

: Wind, Precipitation, Temperature, etc.

- Topological data

- Radiation source term

ADAMO-GR (Accident Dose Assessment Model of Global Region)

Objective - Dose assessment of massive accidents from

overseas

Calculation Models - Using atmospheric dispersion model

- Evaluates the radiation dose for the public

Input Data - Meteorological data

• East Asia region: horizontal res. 12km

• Global region : horizontal res. 100km

- Source term data

• Each nuclear site in Northeast Asia were

arranged into the database

DISPERSION

DOSE

- Geographical Information DB

- Social-Environmental DB, Protective Action DB

Manages & Controls the Database

GIS (Geographic Information System )

Recommends Protective Measures and Countermeasures

Provides Technical Support to the Government

Identifies the size of an Affected Area

Korea Institute of Nuclear Safety

Communication (ERIX, Video Conference)

Web-based Interactive Emergency Response Information

Sharing System

1. Exclusive access with an authentication process

2. On-line information sharing among the relevant organizations

3. Electronic document management function

4. Multi-user bulletin board function

5. Multi-message injection function

Korea Institute of Nuclear Safety

Activities of emergency exercise

Rapid recovery of emergency communication system

- satellite communication equipment

- video conference equipment

Activities of emergency exercise

Public Protective Action Level

Generic Intervention Level (GIL)

Meteorological data

• Wind Direction : 315.0°(NW)

• Wind Speed : 2.4 m/s

• Instability : C

• Precipitation : 0.0 mm/h

• Plum Direction : SSE Distance (km) Effective Dose (mSv) 1 km 84.2

2 km 75.5

5 km 54.3

8 km 32.2

Activities of emergency exercise

‘13 Yeonggwang Integrated exercise ‘12 UlJin Unified exercise Scenario

Activities of emergency exercise

Environmental Radioactivity Monitoring

- Conduction of radioactive prospecting using vehicles, helicopter

and other equipment

Activities of emergency exercise

By car By helicopter By ship

Activities of emergency exercise