1

INES Levels
INES N/A 
INES 4
INES 0
INES 5
INES 1
INES 6
INES 2
INES 7
INES 3

INES 1: Anomaly

Impact on Defence-in-Depth
  • Overexposure of a member of the public in excess of statutory ­annual limits.
  • Minor problems with safety components with significant defence-in-depth remaining.
  • Low activity lost or stolen radioactive source, device or transport package.
(Arrangements for reporting minor events to the public differ from country to country. Also, it is difficult to ensure precise consistency in rating events between INES Level-1 and Below scale/Level-0)
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INES-event
INES 1

THEFT OF RADIOACTIVE SOURCES

On the night of October 8, armed thieves entered the storage facility at the company and equipment and various electronic ítems were stolen, as well as two sources of Am-Be 185 GBq each (Category 3), within a yellow container.
The company notified the National Police and the IPEN (regulatory body), who sent a team for performing a quick search of the sources in the area.
Local advisory warnings to the public were issued.

Category: Radiation Source Peru »

INES-event
INES 1

Theft of portable radioactive gauge

On June 17th, 2012 a portable radioactive gauge was stolen from the store room of BISA company, in a mining plant. The radioactive gauge was used to density and moisture measurements and it was stolen jointly with other belongs from company by breaching the store room door.
The radioactive gauge is a TROXLER manufactured and model 3440P and serial 65350. It contains two Category 4 radioactive sources: Cesium-137 (296 MBq) and Am-241/Be (1,48 GBq).

Category: Radiation Source Peru »

INES-event
INES 1

Object: Retrieval of Co-60 orphan source at Genoa port coming from Senegal

On the 30th of July 2014, at the port of Genova Voltri, radiometric investigation revealed abnormal levels of radiation inside the container of metal scraps MRKU8395940, coming from Senegal, shipped by a company based in Sharjah (United Arab Emirates).

Specifically the dose rate on contact with the container result equal to 2,3 microSievert/h and rapidly decrease to a value of 0,15 microSievert/h at 20 cm from the container, and comparable with the local natural background (0,05 microSievert/h) at 1 meter from the container. Spectroscopic analysis revealed the presence of Co-60.

Category: Transportation Italy »

INES-event
INES 1

Inspection of Container No.TSAU 2600500 for Radioactive Contamination

A radiation survey on the container no. TSAU2600500 which was kept at the Colombo Port premises was carried out by the Atomic Energy Authority (AEA) on 02.05.2014.

Details of the consignment inspected are as follows:
Container No. : TSAU 2600500
Country of Origin : Bangladesh
Items in the Container : Stainless Steel Scrap

Category: Transportation Sri Lanka »

INES-event
INES 1

Overexposure to Member of the Public

The Texas Department of State Health Services was informed of an incident involving industrial radiography of a pressure vessel. A site foreman was present in the work area with the radiographer. The radiographer approached the source collimator to change the film and realized the source was still in the exposed position. It is estimated that the site foreman received an unintended dose. The site foreman reported he was in the area for 5-8 minutes and approximately 12-24 inches from the source. A calculated dose for 8 minutes at a distance of 1 foot from the 67 Ci Ir-192 source was 40 rem.

Category: Radiation Source United States of America »

INES-event
INES 1

One radioactive source containing Co-60 lost or stolen

In the beaverboard manufacturing plant (in town of Koniecpol, Śląskie region) which is currently under insolvency proceedings (bankruptcy) there has been discovered the loss of one radioactive source containing isotope Co-60. The current activity of lost source is approximately 0,5 GBq. The source was being used in the fill level gauge in the process of beaverboard production. The source was in its shielded container no. PS-5B, weighing approximately 45 kg (please see attached pictures).

Category: Radiation Source Poland »

INES-event
INES 1

Two radioactive sources containing Co-60 lost or stolen

During the modernization in the „Bełchatów” Coal-Fired Power Plant (Rogowiec, Łódzkie province) there has been discovered the loss of two radioactive sources containing isotope Co-60, that were used as the level gauges. The sources were in their shielded containers (dimensions 30 cm x 35 cm x 22 cm). The details of the sources:
- source no BA469 with current activity of 1,08 GBq, container PRJ 500 no 3010 weighing approximately 180 kg;
- source no BA476 with current activity of 2,43 GBq, container PRJ 1000 no 2740 weighing approximately 240 kg.

Category: Radiation Source Poland »

INES-event
INES 1

Contaminated Transport Package-Used Machineries and spare parts

The Sri Lanka customs suspected the container number APHU 6385138 which contain used machineries and spare parts for radioactive contamination from Megaport detectors. Atomic Energy Authority has been carried out radiation survey at request of Sri Lanka customs.maximum radiation level recorded was 2 micro seivert per hour on the surface of the container. Measurement of the container for radiation using the following instruments confirmed that the one or more items of the container were contaminated with both Cs-137 and Cs-134 radioactive materials.

Category: Transportation Sri Lanka »

INES-event
INES 1

EDG failed to start after unintentional loss of two phases on 400 kV incoming offsite supply

Unit 3 was in refueling state with reactor vessel head removed and spent fuel pool gates open to the reactor vessel. The 400 kV unit breakers received an unintentional order to open, but only two out of three phases opened causing low-voltage in the station but still over 65%.No EDG got start order.

Forsmark unit-3 had been shut down for yearly maintenance since 2013-05-19.
Forsmark-3 is equipped with 4 safety trains.

Category: Power Reactor Sweden »

INES-event
INES 1

Found orphan Cs-137 source

On 22.11.2013 radiation portal monitors at a Finnish stainless steel factory indicated that an incoming shipment of scrap metal contained a radiation source. The factory immediately contacted Radiation and Nuclear Safety Authority (STUK). An inspector from STUK went to the site. The source was tentatively identified as Cs-137.

Category: Radiation Source Finland »