Radiographic inspections are very useful for testing the quality and remaining life of metals and metal products. However, the tests involve using materials that can be hazardous in the wrong hands. To prevent this, it is important to rely on expert technicians. Format NDT Ltd ticks this box, offering the safest on site gamma radiography.
Risk of exposure
The problem with providing radiography on a site is there is a higher risk of exposure. It is easier to control this if you are testing a metal or product in a lab where you can control all of the conditions. However, on a site there could be more people in the area. It is also harder to use enclosures.
Exposure to radiography, particularly in industrial or medical settings, carries certain risks that need to be carefully managed and minimized. Radiography involves the use of X-rays or gamma rays to image the internal structures of objects or the human body. While these techniques are highly valuable for diagnostic and inspection purposes, precautions must be taken to ensure the safety of individuals involved.
One of the primary risks associated with exposure to radiography is the potential for ionizing radiation to cause harm to living tissues. Ionizing radiation can damage cells and DNA, leading to various health effects such as radiation sickness, increased risk of cancer, and genetic mutations. Prolonged or repeated exposure to high doses of radiation can have severe consequences.
To mitigate these risks, strict safety protocols and regulations are in place to limit radiation exposure. This includes the use of shielding materials, such as lead aprons and barriers, to reduce exposure to scattered radiation. Personnel involved in radiography must be trained in radiation safety procedures and wear appropriate personal protective equipment.
Another risk is the accidental exposure to radiation due to equipment malfunction or human error. Malfunctioning radiography equipment or improper handling of radiation sources can result in unintended exposure. Therefore, regular equipment maintenance, calibration, and thorough quality control procedures are necessary to ensure the proper functioning and safety of radiography systems.
Furthermore, proper training and certification of personnel involved in radiography are essential to minimize the risk of errors and ensure safe practices. Operators should have a thorough understanding of radiation safety principles, proper handling of radiation sources, and emergency procedures in case of incidents.
In summary, exposure to radiography carries inherent risks due to the potential harmful effects of ionising radiation on living tissues. However, with strict adherence to safety protocols, appropriate shielding, regular equipment maintenance, and trained personnel, the risks can be effectively managed and minimised. Safety measures are crucial to protect individuals from unnecessary exposure and ensure the safe and responsible use of radiography in various fields, including medicine and industrial applications.
Luckily, there is radiographic equipment that you can use on sites. These products have to meet minimum requirements for gamma ray sources. The standard is ISO 2919:2012. This dictates how the radioactive material must be stored. It has to be within an exposure container that complies with ISO 3999:2004. It must only be possible to expose it with a definitive action. That prevents accidental releases.
Classifications
The gamma source containers for radiography can have one of three classifications. The first is class F. They are fixed units which can only be used in a set working location. These are what you find in formal labs, usually within enclosures.
A second option is class M. These containers are mobile but not entirely portable. Moving them requires the use of a trolley or similar item. They may be suitable for on site use but it is vital to think about the mobility.
The final type of enclosure is class P. These are entirely portable devices, generally with a mass that does not exceed 50kg so one or two people can carry them. If you choose on site gamma radiography these are the container you are most likely to see.
Categories
The devices can be categorised in two further ways based on how the technician exposes the radioactive source.
Category I devices operate without removing the source from the container. Instead it is possible to remove a small section of the shielding or move the source slightly. This exposes a small beam that the technician can aim at the item they are testing.
Category II devices are a little different. They are known as projection systems because the source can move out of the container along a tube sheath. Once it reaches the exposure head it will project a beam.
Ask us about on site gamma radiography
Format NDT Ltd understands the potential hazards with radiography. We work to offer the safest services, ensuring we account for the safety of our own technicians and anyone on the site where we are testing. A big part of this is using the right equipment, storing it correctly, and maintaining it. We also ensure that all technicians have the right skills.
So, if you want on site gamma radiography services, rely on us. We can provide them for various sites, allowing testing in-situ.