2

INES Levels
INES N/A
INES 0
INES 1
INES 2
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INES 7

INES 2: Incident

Impact on People and Environment:
  • Exposure of a member of the public in excess of 10 mSv.
  • Exposure of a worker in excess of the statutory annual limits.
Impact on Radiological Barriers and Control:
  • Radiation levels in an operating area of more than 50 mSv/h.
  • Significant contamination within the facility into an area not expected by design.
Impact on Defence-in-Depth:
  • Significant failures in safety ­provisions but with no actual ­consequences.
  • Found highly radioactive sealed orphan source, device or transport package with safety provisions intact.
  • Inadequate packaging of a highly radioactive sealed source.
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INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.

Category: Fuel Reprocessing Sellafield United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »

INES-event
INES 2

Electronic Personal Dosimeter went into Alarm during X-ray Radiography Operations

Radiographers were working in a cell in a redundant reprocessing facility, carrying out digital imaging of legacy crates using X-rays in order to identify their contents.
This cell is an area of known high background radiation containing ten legacy crates.
A previous health physics survey of the crates had identified radiation levels in nine of the crates between 0.5 mSv/h and 1.8 mSv/h gamma, with the other crate up to 20mSv/h gamma.
The work was carried out using an adjacent room, approximately 20 metres away, as a control point.

Category: Fuel Reprocessing United Kingdom »