Radiation Protection Guidelines

Radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium.

It is broadly classified into two main types based on its energy level:

Non-Ionizing Radiation: Low-energy radiation that does not possess enough energy to remove electrons from atoms or molecules. Examples include radio waves, microwaves, infrared, and visible light.

Ionizing Radiation: High-energy radiation capable of liberating electrons from atoms, creating charged particles (ions). This type can alter chemical bonds and cause biological damage to living tissue. Examples include X-rays, gamma rays, and alpha or beta particles.

What Are the Harmful Effects of Ionizing Radiation? 

Ionizing radiation, including X-rays used in medical imaging, has enough energy to alter molecules and damage cells. The health effects depend on factors such as dose, exposure time, radiation type and the tissue exposed.

For radiation protection, health effects are broadly divided into tissue reactions (deterministic effects) and stochastic effects.

Background radiation is the low level of ionizing radiation that is naturally present around us all the time. It comes from natural sources in the environment and, in smaller amounts, from human activities.

Where Does It Come From?

– Cosmic radiation – Comes from outer space and is higher at greater altitudes. 

– Earth & rocks – Natural radioactive materials in soil and rocks emit radiation. 

– Radon gas – A naturally occurring radioactive gas that can accumulate indoors. 

– Food & our bodies – Tiny amounts of naturally occurring radioactive elements are present in food and living organisms. 

– Medical sources – X-rays and other medical imaging contribute to radiation exposure, but these are not considered natural background radiation.

Is Background Radiation Dangerous?

We are exposed to small amounts of background radiation throughout our lives. The level varies depending on where we live, altitude, geology and other factors.

For healthcare workers, background radiation is different from occupational exposure received while working around X-ray or fluoroscopy equipment.

Background radiation = radiation that is naturally present in our environment.

Occupational exposure = additional radiation received as a result of work.

Ionizing radiation, including X-rays used in medical imaging, has enough energy to alter molecules and damage cells. The health effects depend on factors such as dose, exposure time, radiation type and the tissue exposed.

For radiation protection, health effects are broadly divided into tissue reactions (deterministic effects) and stochastic effects.

1. Tissue Reactions / Deterministic Effects

These occur when radiation exposure is high enough to cause significant cell damage. They generally have a dose threshold, and the severity increases as the dose increases.

• Possible effects include:

• Skin injury and radiation burns

• Hair loss

• Cataracts

• Damage to the blood-forming system

• Infertility

• Acute radiation syndrome following very high whole-body exposure

• Effects on the developing embryo or fetus at sufficiently high exposures

2. Stochastic Effects

Stochastic effects are associated with changes to cellular DNA.

The principal concern is:

Increased risk of cancer

Radiation exposure has been associated with cancers such as leukaemia and various solid cancers. These effects may occur years after exposure, and the risk generally increases with accumulated dose.

Which Parts of the Body Are Particularly Sensitive?

Some tissues are more sensitive to radiation than others. Particular attention is given to:

Eyes – Repeated exposure can increase the risk of radiation-induced lens changes and cataracts.

Bone Marrow – High exposure can damage blood-forming cells.

Reproductive Organs – Sufficiently high doses can affect fertility.

Developing Fetus – Radiation sensitivity varies with the stage of pregnancy and the dose received.

DNA / Cells – Radiation can cause cellular and genetic damage that may contribute to long-term health effects.

The Goal of Radiation Protection

Radiation cannot always be completely avoided in medical imaging—and it provides enormous clinical benefits. The objective is to use radiation when justified and keep exposure as low as reasonably achievable (ALARA) while achieving the required clinical result.

Dhaal Can Help

Dhaal provides a comprehensive range of radiation-protection solutions for healthcare professionals, including protective aprons, thyroid shields, radiation-protective eyewear, gloves, table-mounted curtains, mobile barriers and other shielding solutions.

Protect your team. Minimize unnecessary exposure. Choose the right radiation protection.

Not every medical imaging machine emits the same amount of radiation. Some systems produce X-rays for only a fraction of a second, while others use continuous or pulsed fluoroscopy for extended periods. 

Among commonly used systems, Cath Labs and C-Arms generally present the highest occupational scatter radiation exposure, while Dental X-ray, OPG, Mammography and DEXA usually present very low operator exposure when appropriate shielding and operating practices are followed.

Most occupational radiation exposure comes from scatter radiation produced by the patient—not directly from the X-ray tube.

General X-ray

Short exposures. Operators usually remain behind protective barriers, resulting in low occupational exposure.

Portable X-ray

Used in ICU/OT. Operators may remain in the room, so scatter protection is important.

Fluoroscopy

Real-time imaging creates more scatter due to longer exposure times.

C-Arm

Common in Orthopedics, Urology and Pain procedures. Scatter is highest near the patient.

Cath Lab

Highest occupational exposure because staff remain close to the patient during prolonged fluoroscopy.

CT Scanner

High patient dose but very low operator dose because staff leave the room during scanning.

OPG / Dental

Very low occupational exposure when proper barriers are used.

Mammography

Low-energy X-rays with operators behind protective barriers.

Most occupational exposure is caused by scatter radiation produced when the primary X-ray beam interacts with the patient. The patient becomes the main source of scattered radiation reaching doctors, nurses and technologists.

Several medical imaging machines use ionizing radiation. The level of radiation reaching an operator depends on the equipment, exposure settings, procedure, distance and shielding.

Which Machines Need the Most Operator Protection?

C-Arm, Cath Lab and interventional fluoroscopy generally require greater attention to occupational radiation protection because staff may remain close to the patient for extended periods. The patient becomes the main source of scattered radiation.

What Determines Operator Exposure?
Radiation exposure ↓ with:

Less Time → Minimize unnecessary fluoroscopy/exposure
More Distance → Stay farther from the patient when possible
More Shielding → Use appropriate protective equipment and barriers

The machine’s radiation output alone does not determine operator exposure. Where the operator stands, how long they remain there, and how effectively shielding is used are equally important.

When an X-ray exposure is made, radiation does not simply “flow” through the room like air. X-rays travel from the tube and interact with the patient, equipment and surrounding surfaces.

The Radiation Path
1. Primary X-Ray Beam
The X-ray tube produces the primary beam, which travels toward the patient and image receptor.

2. Patient Scatter — The Main Concern for Staff
When X-rays interact with the patient’s body, some are absorbed and some are scattered in different directions.

This scattered radiation is generally the main source of occupational exposure for staff during fluoroscopy and C-arm procedures.

3. Transmitted Radiation
Some of the primary radiation passes through the patient and is captured by the detector. Depending on the equipment and geometry, radiation can also reach surrounding structures.

4. Walls & Barriers
Structural shielding such as shielded walls, doors and viewing windows attenuates radiation passing toward adjacent occupied areas.

There is no single fixed percentage between primary and scattered radiation. It changes with patient size, X-ray energy (kV), field size, projection angle, distance, and equipment settings.

For a C-arm/fluoroscopy room, a useful rule of thumb from the IAEA is that the scatter dose rate around the patient is typically about 1/100 to 1/1,000 of the primary-beam dose rate at the patient’s skin. In percentage terms, that is approximately 0.1%–1%.

Simple way to explain it

Primary X-ray beam → 100% at the patient’s entrance

Scattered radiation around the patient → roughly 0.1%–1% of that level

But 0.1% does not mean the exposure is insignificant. Staff can be close to the patient and may remain there during many exposures, so the cumulative occupational dose can become important. The IAEA identifies patient scatter as the main source of radiation exposure for staff in fluoroscopy rooms.

Ref: https://www-pub.iaea.org/MTCD/Publications/PDF/PUB1983_web.pdf?utm_source

Ref: https://www.aerb.gov.in/storage/uploads/Booklets/bookletsEfEAS.pdf?utm_source

X-rays from an X-ray machine exist only while the machine is producing the X-ray beam. Once the exposure is stopped and the X-ray tube is switched off, the machine no longer emits X-rays. There is no residual X-ray radiation lingering in the room. AERB specifically compares this to switching off an electric bulb—the light does not remain after the bulb is off

What Happens During Exposure?

X-ray ON → Radiation is produced → Patient is exposed → Scatter is produced → Staff may be exposed

X-ray OFF → No X-rays are being produced

The scattered radiation produced during an exposure also does not remain floating around the room after the X-ray beam is switched off.

What About C-Arm & Fluoroscopy?

This is especially important in a C-arm room because exposures may occur repeatedly during a procedure.

The radiation risk exists while the X-ray beam is ON. Therefore, staff should:
• Minimize exposure time
• Maintain maximum practical distance
• Use appropriate shielding
• Avoid unnecessary presence near the patient during exposure

AERB identifies Time, Distance and Shielding as the basic principles of radiation protection.

Simple Message for Your Infographic

X-RAY ON → RADIATION PRESENT
X-RAY OFF → NO X-RAY RADIATION REMAINS IN THE ROOM

ALARA stands for “As Low As Reasonably Achievable.” It is a fundamental principle of radiation protection that aims to minimize unnecessary radiation exposure while still obtaining the required medical information or performing the procedure safely.

Why Is ALARA Important?
Following ALARA helps to:
• Reduce unnecessary radiation exposure to patients and healthcare staff.
• Lower cumulative occupational exposure over time.
• Reduce the potential long-term health risks associated with radiation.
• Encourage safer working practices around X-ray, C-arm and fluoroscopy equipment.
• Promote the effective use of Time, Distance and Shielding.

ALARA in Simple Terms

LESS TIME → MORE DISTANCE → BETTER SHIELDING → LOWER EXPOSURE

ALARA does not mean eliminating radiation. It means using only the radiation that is necessary and keeping exposure as low as reasonably achievable.

Simple explanation
X-rays from an X-ray or C-arm machine do not remain in the room after the machine is switched off.

During exposure:
X-ray Tube → Patient → Scattered Radiation → Surrounding Area

When the exposure stops, the X-ray tube stops producing X-rays. The radiation that was traveling through the room is no longer being continuously produced.

X-RAY ON → Radiation Produced
X-RAY OFF → No X-rays Being Produced

Importantly, this is different from radioactive materials, which can continue to emit radiation after the equipment is switched off.

Ref: https://pub.iaea.org/mtcd/publications/pdf/pub1564webnew-74666420.pdf?utm_source

The most useful way to present this is as relative radiation intensity versus distance, rather than giving one fixed μSv/h value for each machine. Actual dose rate varies with kV, mA, exposure time, field size, patient size, workload, geometry and shielding. The IAEA confirms that X-ray intensity approximately follows the inverse-square law with distance; for fluoroscopy, scatter around the patient also decreases approximately with the square of distance

The key message:

Double the distance → approximately ¼ the radiation intensity.
Triple the distance → approximately ⅑ the intensity.

*This is an idealized relative comparison, not a prediction of actual dose rate in a clinical room.

A Very Important Difference: X-Ray vs C-Arm

For a fixed X-ray machine, we usually think about distance from the X-ray tube.

For a C-arm or Cath Lab, the operator’s main exposure comes from scatter generated when the X-ray beam hits the patient. Therefore, the relevant distance for occupational protection is often distance from the patient, not simply distance from the tube. The IAEA notes that patient scatter is the main source of staff exposure in fluoroscopy rooms.

Ref: https://www-pub.iaea.org/MTCD/publications/PDF/Pub1206_web.pdf?utm_source
Ref: https://www.aerb.gov.in/images/PDF/DiagnosticRadiology/RADIATION-PROTECTION-IN-DIAGNOSTIC-RADIOLOGY.pdf?utm_source

Yes. If you mean the appropriate Pb-equivalence of the personal protective apron worn by an operator, the answer is different from room shielding.

There is no separate apron thickness for every distance from the X-ray source. Apron selection is primarily based on the type of procedure, X-ray energy, scatter level and duration of exposure. Distance is a separate protection factor.

Recommended Lead Equivalence for Aprons

Ref: https://www.aerb.gov.in/images/PRACTICAL-TIPS-IN-ENSURING-RADIATION-SAFETY-IN-THE-USE-OF-MEDICAL-DIAGNOSTIC-X-RAY-EQUIPMENT.pdf?utm_source

Ref: https://www-pub.iaea.org/MTCD/Publications/PDF/PUB2021_web.pdf?utm_source

Yes. If the hospital does not have a dedicated apron-testing device, it can still perform a basic local screening inspection, but it should not be treated as a substitute for radiographic/fluoroscopic integrity testing when the apron is suspected to be damaged or when formal periodic testing is required.

AERB specifically recommends checking the consistency/integrity of lead aprons periodically, and its practical guidance says lead aprons should be stored properly and their consistency checked once every two years.

How to Test Lead Aprons in a Hospital
Regular inspection helps ensure that a lead apron continues to provide effective radiation protection.

1. Inspect Visually
Lay the apron flat and check for cracks, permanent creases, bulges, tears, separation or damaged stitching.

2. Check Gently
Feel the surface for hard, thin, uneven or irregular areas. Do not fold, roll or aggressively bend the apron.

3. Radiographic / Fluoroscopic Inspection
A visual check cannot detect all internal defects. Periodic X-ray or fluoroscopic imaging can identify cracks or discontinuities inside the protective material. AERB recommends checking apron consistency by radiography at least once every two years.

4. Decide: PASS or REMOVE

• PASS: No significant defects and shielding material appears intact.
• FAIL: Cracks, holes, splits, delamination or other significant defects → remove from service and have it professionally evaluated or replaced.

5. Maintain an Inspection Record
Record the apron ID, Pb equivalence, inspection date, test method, result and inspector’s name.

When in doubt, take it out of service. A damaged apron can give a false sense of protection.

Important: Radiographic/fluoroscopic testing should follow an approved hospital protocol and be performed/evaluated by appropriately trained radiation-safety or medical-physics personnel.

Ref: https://webstore.iec.ch/en/publication/5291?utm_source
Ref: https://www.aerb.gov.in/images/PDF/CodesGuides/General/IndustrialSafety/4.PDF?utm_source

Yes. The key point is that there is no scientifically valid fixed “5-year/7-year/10-year” life for every radiation-protection apron.
An apron remains usable as long as its shielding integrity and required Pb-equivalence remain compliant.

Age, material, frequency of use, folding, storage and wear all affect this. IEC 61331-3 specifies the performance/attenuation requirements for protective clothing, but it does not establish a universal expiry period

AERB’s specifications for protective rubber aprons specifically require the material to remain flexible and free from defects such as stiffening, blisters, porosity, cuts and pinholes.

The bigger concern is localized damage—for example, cracks or gaps in the shielding material.

A damaged area can create a weak spot even when the rest of the apron remains compliant.

Actual lead equivalence is a measured attenuation property. IEC 61331-1 describes determining attenuation using controlled radiation qualities and reference lead; it is not something that can reliably be determined by visual inspection

Yes, X-rays can pass through walls if the wall does not provide adequate radiation shielding. However, properly designed X-ray and C-arm rooms use structural shielding to reduce transmitted radiation to an appropriate level.

Unlike visible light, X-rays have enough energy to penetrate many materials. When an X-ray beam reaches a wall, part of the radiation is absorbed by the wall, some is scattered, and some may continue through it. The amount that passes through depends on factors such as X-ray energy, exposure workload, distance, the material used and its thickness.

This is why radiation shielding is an important part of X-ray room design.

The primary purpose of structural shielding is to protect people outside the radiation room—such as staff working in adjacent rooms, patients, visitors and members of the public.

In India, the Atomic Energy Regulatory Board (AERB) requires appropriate structural shielding for the walls, doors, ceiling and floor of rooms housing X-ray equipment so that radiation exposure to workers and the public remains within applicable limits.

No. There is no universal “lead thickness” that applies to every X-ray room.

The required shielding depends on:
✓ Type of X-ray equipment
✓ Operating voltage and radiation energy
✓ Expected workload
✓ Frequency and duration of exposures
✓ Distance to occupied areas
✓ Room layout and equipment position
✓ Type of wall, floor and ceiling construction
✓ Occupancy of surrounding areas

Therefore, shielding should be calculated and designed for the specific room, rather than simply applying a standard thickness everywhere.

AERB’s published guidance specifically states that shielding adequacy depends on the material and thickness used.

During fluoroscopy, C-arm or interventional procedures, staff are exposed primarily to scattered radiation from the patient, rather than directly from the X-ray beam.

As patient size increases:
Larger patient → More X-ray output may be required → More scatter → Potentially higher staff exposure

How Can Exposure Be Reduced?
• Use appropriate exposure settings and automatic dose-control systems correctly.
• Minimize fluoroscopy time and avoid unnecessary exposures.
• Maximize distance from the patient whenever practical.
• Use collimation to limit the X-ray field to the required area.
• Use protective equipment such as lead aprons, thyroid shields, protective eyewear and table-mounted/ceiling-suspended shields.
• Position yourself appropriately, avoiding the path of scattered radiation as much as possible.

An Important Point
Patient size does not automatically mean unsafe radiation exposure. Modern equipment and good technique can help manage dose effectively. The key is to optimize the procedure while following the ALARA principle — As Low As Reasonably Achievable.

Table-mounted lead curtains provide an additional layer of protection from scattered X-ray radiation, particularly during fluoroscopy and interventional procedures.

They are positioned around the lower edge of the procedure table to help shield the legs and lower body of doctors, nurses and other staff from scatter radiation.
Key benefits include:
• Reduces scatter exposure to the lower body.
• Protects staff who must remain close to the patient during procedures.
• Provides continuous shielding without requiring staff to hold a protective device.
• Adds another layer of protection alongside lead aprons, thyroid shields and other PPE.
• Particularly useful during C-arm, Cath Lab and interventional procedures where staff may be exposed for extended periods.
Remember
Table-mounted curtains do not replace personal protective equipment. They work as an additional protective measure along with appropriate aprons, thyroid protection, eyewear and safe positioning.

Dhaal offers radiation protection solutions designed to work together for more comprehensive staff protection.

Lead aprons contain a flexible radiation-shielding layer that can be damaged by repeated folding or sharp creasing.
Folding can cause:
• Cracks or fractures in the protective shielding material
• Weak spots where radiation attenuation may be reduced
• Permanent creases that can shorten the apron’s service life
• Damage that may not be visible from the outside

Even if an apron looks fine externally, repeated folding can compromise the internal protective layer. That is why aprons should be stored flat or, preferably, hung vertically on a suitable apron rack, according to the manufacturer’s instructions.

Protect Your Apron. Protect Its Performance.

Proper storage is a simple but important part of radiation protection. Never fold, crease, throw or place heavy objects on a lead apron.

Dhaal can help hospitals with suitable apron storage solutions and guidance on inspection, maintenance and replacement.

Proper storage is essential to prevent cracks, creases and damage to the protective shielding material.

Follow these simple practices:
• Hang aprons vertically on a strong, suitable hanger or dedicated apron rack.
• Never fold or crease an apron, as repeated bending can damage the internal shielding material.
• Avoid placing heavy objects on aprons or storing them under equipment.
• Keep them away from excessive heat, moisture and direct sunlight.
• Do not hang aprons by straps, buckles or other weak points unless the manufacturer specifically recommends it.
• Allow aprons to dry completely before storing them after cleaning.
• Store different sizes and types separately to make them easy to access and reduce unnecessary handling.
• Inspect periodically for cracks, tears, hardening or other signs of deterioration.

Use a Dedicated Apron Rack
A properly designed lead apron storage rack helps prevent folding and creasing while keeping aprons organized, accessible and protected between procedures.

Dhaal Can Help
Dhaal provides dedicated storage solutions for radiation protection aprons, helping hospitals protect their investment and extend product life.
Need help selecting the right apron + storage solution for your hospital? Contact Dhaal.

Lead aprons should be cleaned regularly to maintain hygiene, but they should never be treated like ordinary clothing. Improper cleaning can damage the protective material and reduce the apron’s service life.
Recommended cleaning practices:
• Wipe the surface with a soft cloth or suitable disinfectant wipe recommended by the manufacturer.
• Use mild cleaning solutions and avoid harsh chemicals, solvents, abrasive cleaners or bleach unless specifically approved by the manufacturer.
• Do not machine wash, soak or dry-clean the apron unless the manufacturer specifically permits it.
• Do not scrub, bend or aggressively squeeze the protective material.
• Allow the apron to dry completely before storage.
• Never fold or crease the apron. Store it properly on a suitable hanger to prevent damage to the shielding material.
• Inspect after cleaning for cracks, tears, hardening, separation or other visible damage.

How Often Should Lead Aprons Be Cleaned?
Cleaning frequency should depend on usage and hospital hygiene protocols. Aprons used frequently or by multiple users may require more frequent surface cleaning.

All three types can provide effective radiation protection when properly designed, tested and selected for the intended X-ray energy and procedure. The main differences are in material, weight, flexibility and environmental considerations.

Which One Is Better?

There is no single best material for every user.
The right choice depends on:
✓ Type of procedure
✓ Radiation exposure and X-ray energy
✓ Required Pb-equivalent protection
✓ Weight and comfort
✓ Frequency and duration of use
✓ Fit, coverage and mobility
✓ Durability and maintenance requirements

For frequent, long-duration procedures, a lighter, well-balanced apron can reduce physical strain, but it should never compromise the required radiation protection.

The Most Important Factor: Verified Protection
Don’t choose an apron simply because it is labelled lead, lead-composite or lead-free.
Always check the declared Pb-equivalent protection and supporting test documentation for the intended application.

Before purchasing a radiation protection apron, hospitals should verify the product’s radiation protection performance, applicable regulatory approvals and quality credentials.

Key certifications and standards to look for include:
• BIS / IS/IEC 61331-3 – Covers protective clothing, including radiation protection aprons, thyroid collars, gloves and protective eyewear. BIS certification provides an important indication that the product has been assessed against the applicable Indian standard.
• IEC 61331 – An international standard series covering protective devices against diagnostic medical X-radiation. It includes methods for determining radiation attenuation and requirements for protective clothing.
• CE Marking – Relevant when the product is being placed on the European market and demonstrates conformity with applicable EU medical-device requirements. Hospitals should verify the manufacturer’s EU Declaration of Conformity and, where applicable, notified-body documentation rather than relying on a CE logo alone.
• ISO 13485:2016 – This is a quality-management-system standard for medical-device manufacturers, not a product radiation-protection certification. It indicates that the manufacturer operates a quality system designed specifically for medical devices.
• AERB Compliance / Requirements – In India, AERB is the regulatory authority responsible for radiation safety. However, AERB should not simply be presented as a “lead apron certification.” Hospitals should verify the applicable AERB requirements for their facility, equipment and radiation-safety program.

What Should Hospitals Check Before Buying?
Don’t choose an apron based on certifications alone. Ask the manufacturer for:
✓ Applicable certification / conformity documents
✓ Radiation attenuation or Pb-equivalence test report
✓ Applicable standard: IS/IEC 61331-3 / IEC 61331
✓ Material and construction details
✓ Declared lead-equivalent protection: 0.25, 0.35 or 0.50 mm Pb, as applicable
✓ Manufacturer’s quality-management certification, such as ISO 13485
✓ Warranty, inspection and replacement support

Dhaal: Built Around Compliance & Protection
At Dhaal, radiation protection products are developed with a focus on verified protection, quality manufacturing and applicable regulatory requirements.

Hospitals can contact Dhaal for help in selecting the appropriate apron based on their procedure, required protection level, material, fit, frequency of use and budget—as well as for inspection, replacement and responsible end-of-life disposal support.

Personal dosimeters, such as TLD badges, should be worn by radiation workers whenever they are working in designated radiation areas. The dosimeter should be assigned to one individual and worn correctly as recommended by the authorized personnel-monitoring service.
In India, TLD dose evaluation is generally carried out quarterly, with badges returned for processing at the beginning of the following quarter. Hospitals should maintain individual dose records and review them regularly through their Radiation Safety Officer (RSO).

When Should Dose Results Be Reviewed?
• Every monitoring period – Review recorded occupational dose.
• Regularly by the RSO – Look for unusual or increasing exposure trends.
• After suspected overexposure – Arrange for the dosimeter to be evaluated promptly rather than waiting for the normal reporting cycle.
• Annually – Ensure workers receive their dose records and that records are properly maintained.

A radiation safety audit should check whether the hospital’s equipment, workplace practices and protective measures are effectively controlling staff exposure.
Key areas should include:
• Radiation Equipment – Check X-ray, C-arm, CT and other radiation-producing equipment for proper operation, maintenance and quality assurance.
• Staff Exposure – Review personnel monitoring or dosimeter records and investigate unusual or elevated readings.
• Protective Equipment – Inspect lead aprons, thyroid shields, protective eyewear, gloves, mobile barriers and other shielding for condition and adequacy.
• Apron Inspection – Check for visible damage and, where appropriate, conduct periodic X-ray/fluoroscopic inspection to identify internal defects.
• Workplace Shielding – Verify that walls, doors, viewing windows and other structural shielding are appropriate and maintained.
• Safe Working Practices – Check whether staff consistently follow Time, Distance and Shielding principles and use available protective equipment correctly.
• Training & Awareness – Confirm that staff receive appropriate radiation-safety training and understand safe operating procedures.
• Documentation & Compliance – Review licenses, inspection reports, equipment maintenance records, staff monitoring records and other required documentation.

For a complete radiation safety audit, hospitals should work with their Radiation Safety Officer (RSO) and appropriately qualified/authorized radiation-safety professionals in accordance with applicable regulations.

Even with protective equipment, incorrect practices can increase unnecessary radiation exposure. Common mistakes include:
• Standing too close to the radiation source – Increase distance from the patient and X-ray source whenever possible.
• Not using available shielding – Use mobile barriers, ceiling-suspended shields, table-side curtains and other available protection.
• Poor positioning – Stand in a position that minimizes exposure to scattered radiation, preferably away from the direction of the X-ray beam.
• Incorrect use of lead aprons – Ensure the apron provides adequate coverage and is properly fitted and fastened.
• Wearing damaged protective equipment – Cracked or damaged aprons may have compromised shielding and should be removed from use.
• Improper apron storage – Folding or creasing aprons can damage the protective material over time.
• Unnecessary presence during exposure – Staff who are not required for a procedure should remain outside the radiation area whenever possible.
• Ignoring other protective equipment – Use appropriate thyroid protection, protective eyewear, gloves and other equipment when required.

Remember: Time, Distance & Shielding
The three basic principles of radiation protection are:
Minimize Time → Maximize Distance → Use Appropriate Shielding

Dhaal Can Help
Effective radiation protection is not just about wearing an apron. Dhaal helps hospitals build a more complete protection approach by providing radiation protection aprons, thyroid shields, protective eyewear, gloves, mobile barriers and other protective solutions.

Choosing the right radiation protection apron is about more than just price. Hospitals should consider:
• Procedure & Radiation Exposure – Choose the appropriate protection level based on the type of X-ray, C-arm, fluoroscopy or interventional procedure.
• Lead Equivalence – Check the required protection level, such as 0.25 mm, 0.35 mm or 0.50 mm Pb equivalent.
• Weight & Comfort – Lightweight and well-designed aprons can reduce strain during long procedures.
• Coverage & Fit – Select the right style, size and coverage for the user’s clinical requirements.
• Material – Consider traditional lead, lead-composite or lead-free options based on protection, weight and intended application.
• Construction & Durability – Look for strong stitching, reliable closures, flexible materials and good resistance to repeated use.
• Certifications & Testing – Ensure the product meets applicable safety standards and has appropriate test documentation.
• Storage & Maintenance – Check whether suitable storage solutions and care instructions are available.
• After-Sales Support – Consider warranty, inspection, replacement and disposal support.

Ref: IAEA Safety Standards for protecting people and the environment
Specific Safety Guide No. SSG-46
http://www-ns.iaea.org/standards

A simple inspection program can help hospitals ensure their radiation protection aprons remain safe and effective.
Regularly inspect aprons for:
• Cracks, tears or visible damage
• Hardening, separation or deterioration of the protective material
• Damaged buckles, straps or closures

Periodically check internal shielding:
X-ray or fluoroscopic inspection can help identify damage that may not be visible externally.

Replace when required:
Any apron with compromised shielding or significant damage should be removed from use and replaced. Proper storage—preferably hanging rather than folding—can also help extend its service life.

Keep a record:
Maintain an inspection and replacement record for each apron to track its condition and service history.

Damaged lead aprons should not be disposed of with ordinary hospital waste or municipal garbage. Because they contain lead, they require responsible handling to prevent lead from entering soil or water.

Key environmental considerations
• Treat them as lead-containing waste: Damaged or unusable aprons should be segregated from general healthcare waste.
• Do not burn or incinerate them: Heating lead-containing materials can release hazardous lead-containing fumes or residues.
• Prevent leakage: Store damaged aprons in a secure, covered area to prevent deterioration and environmental contamination.
• Use authorized recyclers: Disposal should be handled through an authorized hazardous-waste/recycling facility capable of recovering or safely managing lead.
• Keep records: Hospitals should maintain documentation of collection, transportation, recycling/disposal, and the receiving facility where applicable.
• Consider recycling: Where facilities are available, recovering the lead is preferable to simply sending the apron to landfill.
• Follow local regulations: Requirements vary by country and jurisdiction. In India, healthcare facilities should follow applicable CPCB (Central Pollution control board)/SPCB (State Pollution control board) hazardous-waste and biomedical-waste requirements and use appropriately authorized waste handlers.

Ref: IAEA Safety Standards for protecting people and the environment
Specific Safety Guide No. SSG-46
http://www-ns.iaea.org/standards

Yes — lead-free aprons can be as effective as traditional lead aprons, provided they are properly designed, tested, and offer the required lead-equivalent attenuation for the X-ray energies and procedure involved.

Lead-free aprons typically use materials such as tungsten, bismuth, antimony, or tin to attenuate X-rays. The IAEA recognizes these materials as viable alternatives, while cautioning that claimed lead equivalence should be verified carefully.

The important point: Don’t judge a lead-free apron simply by the words “lead-free.” What matters is its tested attenuation performance, particularly at the X-ray energies relevant to its intended use.

For example, IAEA guidance indicates that protective aprons should generally provide at least 0.25 mm Pb equivalent up to 100 kV, 0.35 mm above 100 kV, while interventional radiology may require 0.5 mm Pb equivalent because of higher scattered radiation levels.

DHAAL Lead Free (Pb Free) Apron is the lightest, super flexible and non-tearble Apron provides complete protection with an option of customization on different lead equivalency from 0.25 mm Pb to 1 mm Pb.