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Radiation Attenuation and Shielding

Attenuation and Shielding

Nuclear Australia specialise in the innovation, design and supply of radiation shielding devices. Utilising the latest in 3D computer aided design (CAD) software and attenuation simulation, our skilled engineers provide solutions which are uniquely tailored to our customer’s needs.

Across the global radiation market, we have developed products for a variety of applications, such as:

  • Radio-Pharmaceutical Attenuation Pigs
  • Source Attenuators
  • LINAC Beam Stops
  • Custom Sealed Source Holders
  • Fixed Radiation Gauges

At Nuclear Australia, we work closely with our manufacturing partners in the supply of raw materials, which may include:

  • Tungsten (W95NiFe, W97NiFe)
  • Stainless Steel (SS316)
  • Lead (Pb)
  • Molybdenum (Mo)
  • Titanium Zirconium Molybdenum (TZM)
  • Titanium (Ti)

Our materials are meticulously sourced and this gives us the competitive edge in attenuation media for the radiation field.

Combined with our Radiation Package Design and Testing services, our specialised range gives us the ability to offer a complete turn-key solution for our clients.

Enquire about Attenuation Design and Supply Services

Bertin Instruments
SaphyRAD

Contamination Monitor

SaphyRAD radiation contamination meter

SaphyRAD Alpha Beta and Gamma handheld radioactive contamination monitor, is a multipurpose instrument complete with contamination, survey and dose rate meter functions. It was ergonomically designed to be used in rugged and harsh  environments, complete with hardy housing and large buttons that are easy to access and use with gloves. This device is suitable for use in the Nuclear industry, NORM industry, medical structures and first responders. The SaphyRAD probes come with a proximity sensor and alarm.

A range of detachable SaphyRAD probes allow the monitor to access small or large areas to detect alpha, beta/gamma or alpha & beta /gamma radioactive contamination. An SD card will be required for storage of data.

For more details, please refer to the official SaphyRad website or  datasheet.

Features:

  • Multipurpose
  • Detects and measures Alpha and Beta radiation sources through measuring probes
  • Wide dose rate range from 0.05 μGy/h to 10Gy/h
  • Compatible with external analog probes from other systems
  • Algorithm developed for rapid and reactive radioactive source detection
  • Adaptive library of 20 radionuclides
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Type A Package
Design and Verification

Type A Package Design and Verification for Radiation Sources

Radioactive products play an important role in our modern age. Their use is applicable across a range of industries including manufacturing, mining and medicine. Specifically, this material is essential in the advanced diagnosis and treatment of some cancers. While these products are used worldwide, the packages within which they are transported must meet specific requirements.

The packages which have been specifically designed for international transport are thoroughly tested and verified to ensure that they meet strict criteria and adhere to regulations.

The two main packages used for transporting non-exempt amounts of radioactive products are Type A and Type B.

The type of package required is dictated by:

  • Type of radiation
  • Activity level of the source intended to be carried
  • Validity of the Special Form certificate for the source capsule, if the activity of the source exceeds the A2 value for the particular isotope

Depending on these factors the appropriate package type can be selected.

Type A packages are the simplest and most cost-effective package for the transport of radioactive products. Type A packages are internationally defined by the International Atomic Energy Agency (IAEA) and must meet the regulations specified within the current design regulations. The current standard is the Regulations for the Safe Transport of Radioactive Material 2018 (SSR-6).

This document outlines all of the safety standards which a Type A package must meet. This includes extensive physical tests that the package is subjected to in order to verify the integrity of its structure during transport. By subjecting the package to a range of potential incidents and measuring any changes, we can verify the safety of the contained material according to stringent requirements.

Design Reviews

At Nuclear Australia, we design and verify Type A packages for our customers, particularly for the pharmaceutical industry where liquid isotopes for patient therapies are used. Type A packages must be shown to meet all the requirements in the SSR-6 through a comprehensive design review and a number of physical tests.

To ensure a design meets these requirements Nuclear Australia engineers first analyze the design to ensure all requirements are met through computer simulations and the modeling of its mechanical and attenuation properties. This includes documenting the design against every requirement of the SSR. For example, SSR-6 Requirement 613A states the package should take into account ageing mechanisms. Therefore, a design that quickly wears should not be used or alternatively, the package should be designated for single use only.

Physical Testing

Once the design review has been completed it must be subjected to a number of physical tests. A standard Type A package must be subjected to:

1) Water Spray Test

To simulate light rainfall for one hour prior to each of the destructive tests. This is to ensure that the package can withstand water and is not physically compromised by rain. This is particularly relevant for cardboard and wooden packages.

2) Stacking Test

The package is stacked with five times its mass applied to its top surface to ensure it will not compress and reduce its external dimensions.

3) Drop Test

The package is dropped from a height of 1.2m onto a steel hardstand to test its ability to contain the isotope inside if it was dropped in transit.

4) Puncture Test

A steel bar of 6kg in weight is dropped onto the package from a height of 1m. This is to ensure that should the package be hit by a falling object, it would not be punctured and affect the secure containment of the isotope inside.

Type A packages which carry liquid must also be subjected to the following tests:

5) Puncture Test (1.7m)

To ensure that the liquid contained in a Type A package will not escape in the worst case scenario. The same steel bar as above must also be dropped from 1.7m.

6) Free Fall Drop Test

The most extreme and spectacular test of a Type A package is the free fall drop test where the package is dropped from 9m and enters into free fall. This is to simulate falling off a rack while in transit. Although the package can be significantly damaged, it must not release the liquid from containment.

Compliance

Once all these tests are complete, Nuclear Australia will create a certificate of compliance and issue it to the customer to signify that the package meets the requirements set out in SSR-6 and is fit for transport.

Labeling

Packages which transport radioactive products are classified as dangerous goods and must carry the Dangerous Goods 7 stickers with the nuclear trefoil attached. The package is classified as 1, 2 or 3 and this is calculated based upon the Transport Index (TI) of the package. The Transport index is the reading on a survey meter located 1m from the package in micro sieverts (uSv) divided by 10. This transport index is also written on the package so that those handling the package can care for it appropriately.

Need package design or verification for radioactive source transportation?

Get in touch with us at Nuclear Australia for more assistance: +61 3 8770 6565

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SaphyGATE G
Radiation Portal Monitors

SaphyGate G Radiation Portal Monitor

Bertin’s SaphyGATE G Range of Radiation Portal Monitors

Bertin Technologies’ SaphyGate G range of radiation portal monitors is optimised to detect radioactivity in trucks, trains and cargo. This system is compliant with international standards, including IEC62022, and offers a protection grade of IP 65. 

Why you need a radiation portal monitor on site

Radiation portal monitors are essential for the detection and prevention of the movement of contaminated material. This device offers security to a wide range of industries including metal recycling, mining, border control and facilities which contain radioactive sources.

This highly sensitive system is a vanguard in the screening of radioactivity with its ability to measure and determine radioactivity separate to background levels. Thereby, providing highly effective control of vehicles moving into or out of an area.

Introducing the SaphyGate G

The SaphyGate G range of radiation portal monitors are detection monitors positioned on two pillars, which automatically screen vehicles for radioactivity.

 


Check out the SaphyGate G in action

The system’s innovative algorithm was designed to compensate for radioactive background attenuation induced by the vehicle’s presence through its digital multichannel analyser.

The combination of the high volume plastic scintillators, the spectrometry electronic board and algorithm, ensures reliability and performance in alarm classification.

Contained in a hermetic aluminium box, it was designed to withstand extreme weather conditions and works effectively in temperatures from -20°C to +50°C (–4°F to +122°F).

Its ability to detect energy levels from 30keV to 7 MeV makes this an appropriate, efficient and effective system for cargo transport and freight security.

One of Nuclear Australia’s onsite installations of the SaphyGate G50 for a client in South Australia

Nuclear Australia’s experienced engineers have implemented this system within various industries and sites nationwide. We will work with your specific requirements in order to create an effective solution for the radiological management of your site.

Download the datasheet and brochure, or refer to our SaphyGATE product page to find out more about the SaphyGATE G range.

Located in Australia and need a radiation portal monitor for your premises?

Get in touch with us at Nuclear Australia for a commitment-free quote for your own SaphyGATE and on-premise installation services! 

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Atomtex
AT2140

Personal Dosimeter

AT2140 Dosimeter

The Atomtex AT2140 AT2140A AT2140/1 Dosimeters are compact energy efficient devices to measure ambient dose equivalent rate and continuous dose of gamma radiation.

These Dosimeters operate based on the process of count rate measurement of impulses, generated in Geiger-Muller counter tube under the influence of radiation. Count rate is converted automatically into measurable physical values throughout the range. Devices allow selecting one of 8 pre-set dose rate and dose threshold levels. Energy compensating filter facilitates energy dependence correction of sensibility in entire energy range of gamma-radiation. Atomtex AT2140 AT2140A can be used by radiation safety agencies for radiation monitoring or by inexperienced people concerned with radiation background level in their place of work, residence and recreation, as well as for educational purposes.

For more details, please refer to datasheet or contact us.

Features:

  • Easy to use for inexperienced individuals
  • Hours of continuous operation on one set of batteries: AT2140 – 5,000h, AT2140A – 10,000 h
  • Indication of battery status and main units fault condition
  • Auto compensation background radiation levels
  • Quick response to changes in radiation level
  • Simultaneous dose rate and dose measuring
  • Automatic calculation of measurement statistical error
  • Sound and visual alarm in case threshold level is exceeded for dose and dose rate
  • Night time and low light operation is possible
  • Fit for work in harsh temperature conditions (AT2140A)

Bertin Instruments
SaphyGate G

Vehicle Radiation Monitor

SaphyGate G

The Saphygate G range of Radiation Portal Monitors is specially designed to detect a wide range of radioactive sources in vehicles, even weak sources. This measurement system uses high volume plastic scintillator detectors which ensures sensitivity. Furthermore, its hermetic EMC shielded aluminium casing allows these radiation portal monitors to be used even in harsh weather and environmental conditions. Data obtained by these monitors can be accessed in 2 different configurations with multiple detectors depending on client requirements. Additionally, false alarm rates are effectively reduced by the new enhanced real-time gamma energy distribution algorithm which provides background compensation.

Download the datasheet for more details or contact us today to discuss getting your own SaphyGate G with on-premise installation services!

Features:

  • Reference detector with working systems used by various clients:
    • local authorities (household and industrial waste),
    • recycling companies (metal, wood),
    • steel industry,
    • nuclear industry, etc.
  • System approved by major national and international organizations
  • Central processing unit with coloured LCD touch 12” screen
  • A software pack including: Windows Embedded, RPMVision HMI, remote assistance sw
  • Real-time count rate analysis during measurement
  • Rugged material designed for all weather conditions

Atomtex
AT6130

Radiation Survey Meter

The Atomtex AT6130 is an all-in-one Radiation Survey Meter, Geiger Counter and Personal Electronic Dosimeter. The AT6130 is a compact and robust device intended for Gamma and X-Ray radiation ambient dose equivalent and rate measurements. It also measures beta particle flux density on contaminated surfaces. This Radiation Survey Meter has an inbuilt search mode where the instrument displays in counts per second (cps). This general purpose Radiation Survey Meter / Geiger Counter / Personal Electronic Dosimeter is well suited to industrial, environmental, security and border control applications. The instrument’s operates based on the count rate measurement, generated in the internal Geiger Muller pancake detector under the influence of X-Ray, Gamma and Beta Radiation. The Count rate is converted automatically into Sv values throughout the entire energy range of 20keV to 3MeV. The Microprocessor-based unit is responsible for controlling the radiation monitor operating modes, calculations and displaying the measurement results. This Radiation Survey Meter / Geiger Counter / Personal Electronic Dosimeter is well suited as a general purpose instrument and represents outstanding quality, functionality, robustness and value for money. The instrument is supplied with a certificate of calibration, user manual and a 12 month warranty.

For ordering assistance, technical questions, batch quantities or OEM applications please contact us

Features:

 

  • Low weight and small size
  • Detects X-Rays and Gamma radiation in the range of 20keV to 3MeV
  • 2000 measurement results  stored in non-volatile memory
  • Multi use instrument, Radiation Survey Meter, Personal Electronic Dosimeter, wipe tester, source search functionality
  • Automatic compensation of intrinsic background levels
  • Selective measurement of beta and gamma radiation in mixed fields
  • Measurement results, current time, date and battery life indicator is displayed on LCD screen
  • Measurement results can be transmitted to a PC via Bluetooth interface (If available)
  • Headphones can be attached when working in noisy environment

Atomtex
AT2327

Vehicle Radiation Monitor

Atomtex AT2327 Vehicle Radiation Monitor

Atomtex AT2327 Vehicle Radiation Monitor uses smart probes, which detect gamma and neutron radiation. This device is used to monitor and control access points into a site or facility. The system screens rear walls of gamma radiation detection unit by lead plates, automatically adjusts set threshold levels according to changes to natural background radiation levels, has a backup power source and automatically logs data.

Selected areas of application:

  • Access control points
  • Nuclear industry facilities
  • Scrap metal salvage and reprocessing facilities and smelters
  • Public utility companies for solid domestic waste disposal

Features

  • Automatic switching from background radiation measurement to detection when the control zone line is crossed by a passing vehicle.
  • Rear semi sphere of smart probes is screened by lead plates
  • Automatic correction of set threshold levels according to changes in natural radiation background
  • Sound and light alarm system for exceeded threshold levels
  • Self-testing of components during operation
  • Ability to withstand severe operating conditions
  • Count rate levels and cases of threshold crossing are automatically recorded into the history log
  • Backup power supply with a fully charged battery can provide continuous operation for up to 6 hours (4 smart probes)

For more details, please refer to datasheet or contact us.