Thank you, Chairman. I wish everyone a happy new year. I am pleased to be back in front of the committee.
The High Activity Sealed Sources Directive has been adopted with effect from 22 December 2003. I am happy to remind the joint committee of the contents of that and then to set out where the next steps lie.
This directive is aimed at strengthening the control by the competent national authority of those sealed radioactive sources posing the greatest risk. It also sets out the responsibilities of holders of such sources.
A sealed radioactive source is a source the structure of which is such as to prevent under normal conditions of use any dispersion of the radioactive substances into the environment. Sealed radioactive sources are used throughout the world for a wide variety of applications, notably in medicine, industry and research. The risks posed by such sources vary widely, depending on their activity, the contained radionuclides, the purpose for which used, construction and so on.
Sealed sources can be categorised as those which are currently in use; those which are no longer in use and in storage; and those which are called orphan sources. Sealed sources which are either in use in Ireland or disused are regulated by the Radiological Protection Institute of Ireland having regard to the requirements of EU Council Directive 96/29 Euratom of 13 May 1996 which lays down basic safety standards for the protection of the health of workers and the general public against dangers arising from ionising radiation. These requirements are enshrined in Irish law under the Radiological Protection Act 1991 (Ionising Radiation) Order 2000 (S.I. 125 of 2000).
Orphan sources are sources which were never subject to regulatory control, or sources which were subject to regulatory control but have been abandoned, lost, misplaced or stolen and as such are no longer subject to control.
The risks associated with inadequate control of sealed sources are many. For example, disused sources stored in the user's premises may become lost, stolen or misplaced and thus fall into the orphan source category. Sealed sources may leak and thus increase the radiological content. Orphan sources can cause serious injury, including death to workers and members of the public who may not be aware of their existence or of the radiation hazard.
There have been a number of accidents worldwide, some of which have been fatal, arising from inadequately controlled radiation sources. While there have been no fatal accidents in EU States, the European Commission acknowledges the possibility of accidents occurring because of the mismanagement of sealed sources.
An area of particular concern to the Commission is the increasing incidence of the findings of radioactivity in scrap metal in the EU. Such an incident occurred in Ireland in 1994 when what now could be described as an orphan source was melted down by Irish Steel at their premises in Cork.
These concerns, and the imminent expansion of the EU through the accession of new states, many of which have large numbers of disused and orphan sources, have prompted the Commission to bring forward these proposals, which have been endorsed and approved.
The summary of the proposals is that prior authorisation is required from the member state's authority for any practice involving a high activity sealed source. Before issuing such an authorisation, the member state's authority must ensure that arrangements, plus financial provision, have been made for the safe management of the sources when they become disused under Article 3 of the directive.
The authorisation granted must, among other things, set out the holder's responsibilities, staff competencies and training, work procedures to be followed, the requirements for emergency procedures and adequate management of the disused sources, including agreements on the transfer of the disused sources to a supplier or to a recognised installation under Article 3.
The holder is required to keep records of the sources in his possession, their location and transfer which must be available for inspection by the national competent authority. The holder must also regularly check the integrity of the source, check that it is in situ at the place of use or storage and notify the competent authority immediately of the loss, theft and damage of the source under Article 5 of the directive. Manufacturers are required to identify each source by a unique number under Article 7 of the directive.
Member states must encourage a situation whereby management and workers of installations where orphan sources are most likely to be found, such as metal scrapyards, or customs points, are advised, on the visual detection of sources and their containers and are informed of action to be taken if a source is detected. This is under Article 8 of the directive.
Member states must also ensure the establishment of a system of guarantee for damage to human health caused by high activity sources, as well as for the costs of intervention under Article 11 of the directive. This would also address a situation where the holder of a source cannot be identified or is found to be insolvent.
Following our meeting last September, the directive was considered further by the atomic questions working group, an EU Council working group with responsibility for these matters, and was agreed. The European Parliament issued its opinion on 22 December 2003 and the proposal was formally adopted at Council on 22 December 2003.
The critical issues resulting from the adoption are its implications for Ireland. Under existing Irish law, the custody, use, storage, transfer or disposal of all radiation sources, other than very small exempted sources, such as in individual smoke detectors, is prohibited save under a licence from the Radiological Protection Institute of Ireland. These licences have particular conditions attached related to the safe use of sealed sources and their proper management when they become disused.
In Ireland, there are some 600 disused sealed sources which are stored on the premises of the licence holder in accordance with conditions laid down in the licence granted by the RPII. Licences are now granted by the RPII only if the applicant can provide a written guarantee from the supplier of the source that will accept back the source when it is no longer required. In cases where the supplier is no longer trading, the holder of the source must continue to hold a licence for the custody of the source.
The directive, however, incorporates some additional requirements which are not currently included in the RPII's licensing requirements. These are the requirement requiring the need to provide financially for the management of disused source; the requirement on holders of disused sources which cannot be returned to the supplier to send them to a recognised installation for long-term storage or disposal. In practice, as the committee will be aware from our previous discussion on this topic, this would require Ireland to establish a dedicated storage facility for such sources.
There is also the requirement to establish controls, including radiation detection systems, at establishments where orphan sources are most likely to appear, such as metal scrapyards or air and sea ports and the requirement to establish a system of guarantee for damage to human health as well as for the cost of intervention.
On the matter of disposal of disused sealed sources, an option increasingly being suggested by expert bodies, such as the International Atomic Energy Agency, is that the sources be placed in boreholes in the ground, which are then backfilled with concrete. The boreholes would be typically 15 centimetres in diameter and 100-300 metres deep. The attraction of this option is that there is no requirement for ongoing security surveillance. Also, unlike spent nuclear fuels, which remain radioactive for hundreds of thousands of years, most sealed sources will decay to background levels in a few hundred years, that is, over a timescale in which source containment integrity and geological stability can be assured with a high degree of confidence.
Now that it has been adopted, the directive will be transposed into national law in accordance with the timescales indicated therein. The timescale varies depending on which article is referenced, which is why I do not have specific details. Ireland will aim to transpose in full as soon as possible. Such transposition will include the additional requirements not currently included in the RPII's licensing requirements. In that context, if amending legislation is required for the RPII in this regard then it will be proposed and enacted.
That completes my presentation to the joint committee. I am available to take any questions that the committee may wish to ask.