Transport incident of a gamma ray projector


Print View Posted on: 28 May 2015

Event Date: 02 March 2015 Event Type: Transportation
Event Location: France, St Pol-sur-Mer (59) and Courcelles-les-Lens (62) INES Rating: 2 (Final)

On 16th March 2015, ASN was informed by the ECW company (Courcelles-les-Lens) that one of their gamma ray projects had been carried on the public highway on 2nd March 2015 in conditions failing to comply with a number of requirements stipulated by the transport approval issued by ASN. Indeed, the device was not in the closed and locked position and was equipped with its site accessories, which prevented it from being fully inserted into its transport casing.
These deviations increased the risk of ejection of the radioactive source (category 2) from its shielding in the event of an accident and could have led to the irradiation of the individuals in the immediate vicinity of the accident site.
Following notification of this event, ASN carried out two reactive inspections in the premises of the ECW agency, on 26th March and 14th April. The numerous deviations noted by the inspectors show a lack of safety culture within the agency. ASN asked ECW to take corrective measures.

INES Rating: 2 - Incident (Final) as per 12 May 2015
Release beyond authorized limits? No
Overexposure of a member of the public? No
Overexposure of a worker? No

Contamination spread within the facility? No
Damage to radiological barriers (incl. fuel damage) within the facility? No

Degradation of Defence In-Depth Yes

Person injured physically or casualty? No
Is there a continuing problem? No

Erik Ducousso
Autorité de Sûreté Nucléaire (ASN)

erik.ducousso@asn.fr
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