Lead for Radiation Shielding

Since 1974, Mediray has been the largest supplier of radio-pharmaceutical shipping containers. Mediray is mainly known for shielding radioactive products, X-ray, PET, CT or MRI equipment. Lead is used for the shielding of radioactive products.

Lead – Best Radiation Shielding Metal

Lead is the best metal in providing protection from various sources of radiation. It has become a standard in the design of Radiation Protection systems. Lead shielding refers to the use of lead to shield or protect people or objects from radiation. Because of its high density and high atomic number, lead can fade certain kinds of radiation. And that’s why lead is used as radiation protection in applications ranging from x-ray imaging and PET rooms to nuclear reactors.

Criteria for Selection of Shielding Material

Thickness is not enough for a material to attenuate radiation. There are certain characteristics that are required in a material to use as radiation shielding.

  • Shielding material should have high density and high atomic number, which in turn is better attenuator of x-rays and gamma rays.
  • Shielding material should have good heat conductivity.
  • Shielding material must be resistant to radiation damage.
  • Shielding material should have required thickness and weight.

Apart from the above characteristics, you should also consider the cost of shielding material, transportation and installation. Also, take into account its wastage and scrap value; and availability and ease of shielding material.

Properties of Lead as Shielding Material

The properties of lead are its high density, high atomic number; high level of stability, ease of fabrication and availability makes it excellent shielding material.

  • Lead has extremely low-level neutron absorption and practically no gamma radiation. It cannot become radioactive. Even after long exposure of neutrons, lead emits an insignificant amount of radiation due to activation.
  • Lead is not too dense, but it is readily available, easily fabricated and is less expensive than other high-density materials.
  • Lead is more uniform throughout as compared to other materials.
  • Lead is less likely to become contaminated with dirt, which in turn may become radioactive.
  • Lead can be immediately available for reuse, adaption or for sale as scrap.

Forms of Lead Available For Radiation Shielding

For radiation shielding various forms of lead are used. The shielding of containers for radioactive materials is usually metallic lead. Radioactive materials in laboratories and the medical industry are usually handled by remote control from a position of safety. Personal shielding includes lead aprons (such as the garment used during dental x-rays), thyroid shields, and lead gloves. There are also shielding devices available for laboratory equipment, including lead castles, structures composed of lead bricks, and thick containers for storing and transporting radioactive samples.

We understand why lead is the best shielding material. Mediray is devoted to innovation in lead metal technology as it mainly deals with shielding of X-ray, CT, PET, MRI equipment.

Lead Sheets

Lead is a material used in everyday life all over the world. It comes in many different sizes and shapes depending on its use. Its versatility and protective qualities make it a material in high demand.

Though all different forms of lead materials can be of great use to a number of industries, the most common and useful form of lead is the lead sheet.

Lead sheets are an important product, most of the time made from pure lead. These sheets have great importance in chemical and radiation related industries, as lead metal is highly resistant against a wide variety of chemicals, as well as x-rays and gamma rays. Lead sheets are built into walls of doctor’s offices, hospitals, and laboratories, as well as storage containers and aprons, to protect both doctors and patients from the harmful radiation and contamination associated with the medical field.

Lead sheets that are used in chemical, medical, and building related industries are generally either made from pure lead, or a mixture called lead-antimonial alloy. Calcium-lead and calcium-lead-tin are also suitable combinations for many applications of lead sheets as well.

As you can imagine, the benefits of lead sheets are considerable. For one, lead is a rugged, flexible, and long lasting material, that has considerable aesthetic appeal. Due to its benefits, lead is gaining great popularity in a number of industries.  For example, the roofing business no longer considers lead use for traditional applications such as churches and historic buildings. Architects have been won over by the attractive and long lasting properties of lead sheets for modern buildings, both for roofing and the vertical cladding of external walls.

The high density and limpness of lead sheets make lead a very effective material for reducing the transmission of noise through partitions and doors of lightweight construction. Often the lead sheets are bonded to plywood or other building boards for convenience of handling. Current developments include employing lead sheets for the reduction of industrial noise, and from engines of all sorts. A particular advantage to this use of lead sheets is that the high density of the material creates a need for relatively thin layers to suppress the transmission of sound.

Are you looking for the highest quality lead materials for your home or business? Contact Medi-RayTM today, to choose from our wide variety of lead products of only the highest quality.

The Importance of Lead Lined Products

Lead lined products and rooms have great importance throughout the world today. Lead linings are used in many different types of facilities worldwide. Examples of such places include hospitals and medical clinics, where lead products are used to provide medical radiation shielding. Lead lined products are also often used in the construction industry, to provide defense and protection to people and their surrounding environment against harmful rays. The importance of lead lined products is steadily growing all over the world, as protection from radiation in any situation, is crucial.

Radiation protection is of utmost importance in regard to lead products. Therefore, it must be taken very seriously. From medical to industrial situations, there is a dire need for the application of lead lined products in radiation shielding. Radiation, whether we like it or not, holds great necessity in our modern world. Without radiation and advanced in technology, industries such as healthcare, construction, and defense would be stuck in the past. These advances create the importance for radiation protection, as it creates a safe environment for individuals working around radiation sources. Unprotected exposure to radiation can cause damaging and irreversible changes to the body. Overexposure to high levels of radiation increases the likelihood of contracting many types of tumors and cancers, as well as radiation sickness, and severe skin burns. These circumstances create the need and high demand for lead lined products.

Lead lined products hold great importance in a wide variety of industries and settings:

  •  Lead building products are often used throughout the construction industry. This includes decorative lead fixings, lead pipe shielding, and lead sheets. With advances in technology, solutions can be made to correct any issues involving radiation. Lead is also a highly economical material, which creates long lasting, corrosion resistant results.
  •  Lead products used for radiation shielding can keep healthcare workers and their patients safe from harmful rays. This includes anyone working in the Veterinary, Dental, and Medical fields.
  •  The need for lead shielding in nuclear power facilities is intense. Powerful gamma and neutron radiation can be extremely harmful if not contained. This includes protecting the surrounding environment, as well as any transportation needed to move radioactive materials.
  • Lead shielding is also important to the Defense industry. Radiation shielding for defense purposes must be extremely strong, due to their long periods of time submerged in water. Lead products used within the defense industry may include lead shielding, lead wool, and lead bricks.

Here at Medi-RayTM we make it our highest priority to provide people all over the world with the highest quality lead materials for needs in any situation. Contact us today for more information on our top of the line products.

Why Choose to Work With an ISO Certified Company?

Being an ISO Certified company, as Medi-RayTM is, creates great opportunity and accomplishment for companies that operate on an international level, as it strives to encourage and enable trade between member countries.

It is first and foremost important to understand exactly what ISO is. This is the International Organization for Standardization, and it is the world’s largest developer of voluntary International standards. These standards cover a wide variety of various aspects in technology and business, including food safety, computers, agriculture, and healthcare. Such standards provide companies with many benefits, such as state of the art specifications for products, an array of services and good practice, as well as the ability to make industry more efficient and effective. In addition, ISO strives to break down barriers to International trade.

ISO International standards ensure that products and services are safe, reliable, and of the best quality. For businesses, these standards act as strategic tools that help reduce cost by minimizing waste, and increasing productivity. They also help companies access and achieve membership to new markets, level the playing field for developing countries, and aid in the facilitation of free and fair global trade.

Here at Medi-RayTM, we take great pride in our ISO Certification, as it ensures that our customers will be more than satisfied with our top of the line products, as well as our ability to reach out to customers seeking our products and services worldwide.

Lead Lined Storage and Waste Containers

Lead lined storage and waste containers come in many different shapes and sizes, and are composed of many different outer materials, the most common, being steel.

These containers are used most commonly for the storage, and or disposal of materials that have been contaminated with low-level energy gamma radiation. This includes protection from contaminated syringes, as well as many other nuclides used within the field of Nuclear Medicine.

The lead lined container comes with many benefits to individuals, as well as their surrounding environments. For example, they reduce the risk of accident or unnecessary radiation exposure to workers or the general public, and they reduce costly storage and maintenance. In addition, these containers are equipped with disposable plastic liners to allow the rapid and efficient transfer of radioactive contents.

Here at Mediray, we emphasize the use of Lead lined storage and waste containers to minimize exposure to radiation, while maintaining a clean and safe environment.

X-Ray Shielding: Medical Radiation Protection

Radiation Protection, otherwise known as radiological protection, is the science and practice of protecting people and the environment from the harmful effects of Ionizing Radiation. Ionizing radiation is used in many aspects of industry and medicine, and as a result can present significant health hazards. Such radiation causes microscopic damage to body tissue, which can lead to skin burns and radiation sickness at high exposures, as well as heightened risks of Cancer at low exposures.

Radiation protection is divided into a number of different categories, as there are many different factors to consider when it comes to protecting individuals from radiation, as well as keeping their surrounding environments radiation free.

Radiation exposure is managed by a combination of three factors, these being time, distance, and shielding. Time refers to reducing the amount of time that individuals spend exposed to radiation equipment, while still ensuring that patients receive their appropriated dosage. Distance, refers to increasing the distance between radioactive equipment, and the individuals surrounding it. Finally, shielding refers to absorbing material placed around radioactive sources, to reduce the amount of radiation to a level that is safe for humans. Types of shielding may include lead sheets in the walls surrounding an x-ray room, lead glass or screens on the viewing room for operator safety, and lead aprons for patients to wear. The effectiveness of such shields depends on shield thickness.

Mediray has developed clinic, laboratory, and medical office products for various types of x-ray applications, using such materials as lead castings, sheet lead, and lead foil.

Nuclear Medicine

Nuclear Medicine is a medical specialty, involving the application of radioactive substances in the diagnosis and treatment of diseases. In nuclear medicine procedures, radionuclides are either combined with other elements to form chemical compounds, or they are combined with pharmaceutical compounds to form radiopharmaceuticals.

When administered to patients, radiopharmaceuticals can localize to specific organs or cells throughout the body, to create an image of the extent of disease processes in the body. Nuclear medicine studies are able to identify many medical problems at much earlier stages than many other types of diagnostic tests, as it records radiation being emitted from inside the body.

Mediray takes the advancements in Nuclear Medicine and its technology very seriously. Since the company’s inception in 1970, they have focused a great deal of effort on inventions and improvements of many specialized products and services in the field of nuclear medicine, most importantly its laboratory equipment and apparatuses.

Aeronautical Lead Counterweights

Counterweights come in many different sizes, shapes, and materials, and in accordance, are used for many different things. However, the most important need for a counterweight is to create a sense of balance. In terms of Aeronautical Counterweights, their use is to keep airplane pilots from over exhausting their aircrafts.

Aeronautics is the science involved with the study, design, and manufacturing of air flight capable machines, or the techniques of operating aircraft and rocketry within the atmosphere. Counterweights used in this regard, are also known as bob weights. Their main purpose is to change the amount of control force required to deflect an airplane’s control column. This process is dependent on the factor of air speed.


By installing lead counterweights into aircrafts, aeronautical engineers can make it more difficult to pull on the control column as g-force increases. G-force is the force to which a body is subjected when accelerated. The installation of lead counterweights in aircrafts is an important safety procedure, as it ensures that a pilot will not overstress his aircraft.

Medi-RayTM‘s skilled team of craftsmen pride themselves on the production of such counterweights, as well as many others with a wide range of sizes, material types, and uses.

Radioactive Waste: What is it? How do we keep ourselves safe from it?

Radioactive wastes are usually by-products of nuclear power generation and other applications of nuclear technology, such as research and medicine. It is hazardous to people and the environment. Therefore, it is regulated by government agencies to protect the health of citizens and the environment.

Over time, radioactivity diminishes. Radioactive waste is properly stored and isolated until it is no longer hazardous. The period of time that radioactive waste needs to be isolated and stored depends on the type of waste. Common medical and industrial radioactive wastes, often low-level wastes with low levels of radioactivity per mass or volume, may need to be stored for only a few hours or days. High-level wastes, such as nuclear fuel or byproducts of nuclear reprocessing, may need to be stored for millions of years!

Radioactive medical waste usually contains beta particles and gamma ray emitters. Beta particles are high-energy and high-speed electrons or positrons emitted by certain types of radioactive nuclei. Beta particles can be used to treat conditions such as eye and bone cancer, and can be used in radiation therapy. Gamma radiation is the electromagnetic radiation of high frequency. It has very high energy per photon. Although gamma rays can sometimes cause cancer, they are also used to treat some types, since the rays kill cancer cells also. During gamma-knife surgery, multiple concentrated beams of gamma rays are directed on the growth in order to kill the cancerous cells.

All ionizing radiation can cause damage at a cellular level. However, beta particles are mostly non-penetrating and external exposure to them causes only localized damage. Gamma rays are much more penetrating and cause diffuse damage throughout the body, rather than just burns. Learn about the products you work with, and dispose of radioactive waste properly, and you’ll maintain a healthy environment for all.

Call us today to see how we can help you with radiation safety.

Keeping our clients safe!

Here at Medi-Ray™, we are the driving force in the development and refinement of shielded laboratory equipment and accessories for nuclear medicine. Since the beginnings of our company and still today, we focus most of our research and development on shielded laboratory equipment that keeps nuclear medicine clinicians safe. The medical market’s need for safe, accurate and quality shielding of radioactive sources has constantly brought Medi-Ray™ to the forefront of source containment.

We have combined antimonial lead, tungsten, leaded glass and a variety of other metals and specialized coatings to create a great line of nuclear medicine products. From our unique syringe holders and dose calibrator shielding to waste storage containers, our goal is to ensure adequate protection for laboratory clinicians and patients.