Topic — ARSN Niger

Safety Safety

Ensuring that nuclear and radiological facilities in Niger are operated safely, protecting workers, the public and the environment from radiological risks.

92 2024 Inspections
98% Compliance rate
2 Uranium mines
0 Level 2+ incident
ARSN Mission

Nuclear safety in Niger

Nuclear safety refers to all the technical and organisational measures aimed at ensuring the normal functioning of nuclear and radiological facilities, preventing accidents, and mitigating their consequences should an accident occur.

In Niger, the main facilities subject to ARSN safety control are the uranium mines (SOMAÏR and IMOURAREN), the medical Linac at the National Hospital, industrial radiology units and research laboratories.

2024 Indicators
92
Inspections carried out
98%
Compliance rate
168
Authorisations in force
0
Level 2+ incidents
Safety architecture

The fundamental safety principles

ARSN bases its regulatory approach on the IAEA Fundamental Safety Principles (SF-1) and GSR series standards.

Defence in depth

Multiple independent physical barriers and levels of protection are put in place to prevent accidents and limit their consequences. Each level of defence is effective even if previous ones fail.

SF-1 — Principe 8

Safety culture

All staff at nuclear facilities must integrate safety as a priority value. ARSN assesses safety culture during its inspections and requires continuous improvements.

SF-1 — Principe 11

Competence & Training

Anyone working in a nuclear or radiological facility must have the required qualifications. ARSN verifies authorisations and requires continuing training programmes.

SF-1 — Principe 6

Independent control

Independent and effective regulatory control is a fundamental safety requirement. ARSN acts independently from the entities it regulates, without pressure or conflict of interest.

SF-1 — Principe 3

Emergency preparedness

Arrangements must be made to prepare for and respond to radiological emergencies. ARSN coordinates the national emergency plan and supervises simulation exercises.

SF-1 — Principe 9

Transparence & Communication

ARSN communicates to the public information relating to facility safety and publishes its inspection reports. Transparency is an essential vector of trust.

SF-1 — Principe 5
Niger

Regulated facilities in Niger

ARSN exercises its safety control over all significant nuclear and radiological facilities on Nigerien territory.

SOMAÏR
Uranium mine
Arlit, Agadez 1971

Société des Mines de l'Aïr — open-pit and underground uranium mine operated by ORANO (formerly Areva). One of the world's largest uranium mines. Under strict ARSN control since 2016.

  • Radiological monitoring of workers
  • Control of atmospheric and liquid discharges
  • Management of tailings and radioactive residues
  • Approved internal emergency plan
IMOURAREN
Uranium deposit
Agadez En préparation

One of the world's largest uranium deposits. Site development will require a strengthened regulatory framework. ARSN monitors the progress of the authorisation file.

  • Preliminary radiological impact study
  • Preparation of the authorisation file
  • Engagement with ORANO on safety standards
  • Revision of the mining regulatory framework
Linac — NHN
Medical linear accelerator
Niamey 2018

The linear particle accelerator (Linac) at the National Hospital of Niamey is used for cancer radiotherapy. The first installation of this type in French-speaking sub-Saharan Africa, under ARSN authorisation.

  • Qualification and authorisation of medical physicists
  • Control of acceptance tests
  • Verification of radiation shielding
  • Annual dosimetric audit
Laboratories & Industries
Various facilities
Niger 2016

All industrial and research facilities using radioactive sources: industrial gauges, radiation generators, university laboratories. All subject to ARSN authorisation.

  • 40+ industrial facilities under control
  • Gammagraphy and industrial radiography
  • Sealed sources for research use
  • Nuclear level and density gauges
Communication tool

INES scale for event classification

The International Nuclear and Radiological Event Scale (INES) classifies incidents and accidents from 0 to 7. ARSN uses this scale to classify and communicate any event.

7
Major accident Chernobyl 1986, Fukushima 2011
6
Serious accident Kyshtym 1957
5
Accident with off-site risks Three Mile Island 1979
4
Accident without off-site risks Saint-Laurent 1980
3
Serious incident Vandellós 1989
2
Incident Several events worldwide
1
Anomaly Deviation from authorised limits
0
Deviation (below scale) No safety significance
Niger: current level
Regulatory control

The inspection process

ARSN conducts planned and unannounced inspections to verify facility compliance with regulatory requirements.

Planned inspections

Scheduled in advance according to an annual inspection plan approved by the General Directorate. Allow for systematic and in-depth assessment of facilities.

  • Verification of documentary compliance
  • Review of safety procedures
  • Control of worker dosimetry
  • Assessment of safety culture

Unannounced inspections

Carried out without notice to verify actual compliance with operating conditions. An essential tool for the effectiveness of regulatory control.

  • Control of actual working conditions
  • Verification of protective equipment
  • Control of compliance with dose limits
  • Detection of hidden non-compliances

Reactive inspections

Triggered following a reported incident, complaint or information signalling a potentially dangerous situation. Immediate ARSN response.

  • Analysis of incident causes
  • Assessment of radiological impact
  • Prescription of corrective measures
  • Follow-up until complete resolution

Inspection report

Results of annual inspections published in ARSN's activity report.

Consult reports

Report an event

Any safety event must be notified to ARSN as soon as possible.

Report now

Safety guides

ARSN technical guides and IAEA standards applicable to Nigerien facilities.

Access guides

Contact NSD

Directorate of Nuclear Safety — available for authorisation and inspection questions.

Contact the NSD