Asia

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INES-event
INES 1

Loss of radioactive source (Cs-137, Bac Kan, 2015)

The lost radioactive source is Cs-137 (sealed source, code number: CS-137DT, made in China) with an activity of 4,5 mCi in July, 21st 2010. The source was installed in the level gauge, used to control the clinker automatic disposal system in the cement manufacturing factory of Bắc Kạn DATC joint stock company (DATC company), at Suối Viền, Xuất Hóa ward, Bắc Kạn city. At 8.30 am in 15/12/2015, legal representative of DATC company informed that the radioactive source had been stolen via telephone.

Category: Radiation Source Vietnam »

INES-event
INES 1

Loss of radioactive source (Co-60, Pomina, 2015)

The loss of radioactive source originated from liquid steel spill accident during steel billet manufacturing process of the factory at the beginning of September, 2014. In the accident, lead layers for radioactive source protection were damaged. The radioactive source was Co-60, its activity at this time was 2,33 mCi. After the damage had been detected, the technical team had removed the box for maintenance. The technical team proposed that the source should be isolated because its safety was not ensured.

Category: Radiation Source Vietnam »

INES-event
INES 1

Loss of radioactive source (Ir-192, APAVE, 2014)

At 12 am of September 12th, 2014, in Hồ Chí Minh City, staff from APAVE Asia Pacific limited company discovered that an equipment containing a sealed Ir-192 radioactive source with the activity of 20,5 Ci had been lost). After unsuccessful attempts to retrieve the source, the Company had reported to competence agencies on the emergency. By the evening of 18/09/2016, competence agencies has found the stolen radioactive source (remained intact in the projector) after receiving information from a man living in a house nearby.

Category: Radiation Source Vietnam »

INES-event
INES 1

Loss of radioactive source (Cs-137, Song Da, 2006)

On July 28th 2006, the factory temporary stopped production for equipment maintenance. On 30/07/2006, the radioactive source box is removed from the manufacturing line and put in a inox container with a layer of lead lining before putting on a cement pedestal for clinker disposal. The Cs-137 source's activity is 10 mCi. This was a sealed radioactive source, put in an protective lead box. The box's dimension was 100x100x120mm. In 8/8/2016, the company detected that radioactive source was loss. Despite best effort from relevant agencies, the source has not been found.

Category: Radiation Source Vietnam »

INES-event
INES 1

Loss and dispersion of radioactive source (Eu-152, 2006)

On May 29th, 2006, the Eu-152 radioactive source with an activity of 25 mCi at 10/1995 was lost when being kept at a temporary storage facility. At this moment, the factory was under repairment. At 10h30 of May 31st, 2006, the police office informed that the the radioactive might be kept at No 628, Bạch Đằng street, Hai Bà Trưng district, Hà Nội (an garbage collection area), The radioactive source container had been broken, causing contamination to the house.

Category: Radiation Source Vietnam »

INES-event
INES 2

Overexposure of a member of the public

An industrial radiograph test was performed in Sakarya province, Turkey on October 17,2016 after which a serious radiological incident occured.
Test was performed in a normal manner but after the test, the radiological protection officer hurried up and skipped the control that the source was secured. The source, Ir-192 with a 15 Ci activity (category 3 source according to INES manual) at the date of the accident, dropped to the worksite as unsealed. The source was found by a 16 years old visitor (E.B) approximately at 03:40 p.m. (local time) next day. E. B. placed the source to his trouser’s back pocket and travelled to home for two and a half hours. At the house, household members and their guests declared that they touched or saw the source until approximately 09:00 a.m. on October 20, 2016.
The source was reported as lost to Turkish Atomic Energy Authority Disaster and Emergency Management Center by its owner on October 20, 2016.

Category: Radiation Source Turkey »

INES-event

Leakage from Piping Transferring RO-Concentrated Water to G-6 Tank Area

Around 19:20 on 20 April 2016, TEPCO found that RO-concentrated water was leaking from a heat-insulating material of transfer piping to G-6 tank area.
Extent of soil contaminated by leakage was about 30 cm × 30 cm.
The leak was stopped after shut down of transferring RO-concentrated water.
The place concerned is approximately 70 meters away from the nearest drainage, and the possibility of flowing into the ocean is ruled out, so there is no impact on the environment.
The maximum amount of leakage estimated by TEPCO is 2.7 litres.

Category: Power Reactor Japan »

INES-event
INES 1

Leak from primary coolant system at Kakrapar Atomic Station-1

On March 11, 2016, Kakrapar-1 was operating at 220 MWe. At about 0852 hrs, primary containment (pump room) pressure high alarm appeared in control room. Both fast acting reactor shutdown systems and liquid poison injection system actuated automatically and brought the reactor to long term sub-critical state. Emergency Core Cooling System (ECCS) actuated as per design and provided cooling to the core.

As per the established procedure, plant emergency was declared at 0910 hrs.

Shutdown cooling loop was taken in service and primary coolant temperature was brought to 45 °C.

Category: Power Reactor India »

INES-event
INES 3

Overexposure of two industrial radiographers

Two industrial radiographers who were involved in an oil refinery projects, overexposed by Gamma radiation of Ir-92, 35 Ci. On 23/09/2015, one of the radiographers dismantled the guide tube without noticing that the source/holder was detached and stocked in the guide tube due to not having survey meter with him. He put the guide tube in the car between the right front chair and back chair. During the night, one of the radiographers slept in the left front chair for about 6 hours while the other slept in the right front chair for about 4 hours in different times.

Category: Radiation Source Iran »

INES-event

Contaminated water being transferred to turbine building of unit 3 from 1000 tons notch tank was leaking from the cracked pressure hose

On 29 May, 2015, TEPCO found that contaminated water being transferred to turbine building of unit 3 from 1000 tons notch tank was leaking from the cracked pressure hose.
TEPCO stopped the inappropriate transfer of contaminated water.
The estimated volume of the leaked water is approximately 7 m3.
Although the leaked water flowed into the drainage which led to the port there has been no significant change in radioactivity of the ocean that raises any concern about influence to health and the environment.

Category: Power Reactor Japan »