Axim Nuclear and Oncology (Pty) Ltd Industrial division offers a wide range of dosimetry devices covering all clinical fields as well as industrial fields such as mining, process control and many other disciplines with research instrumentation, irradiators, radioactive sources and calibration services. Cutting edge, advanced technology allows for ease of use and quick through put in our range of products.

Calibration Services

Calibration Services

Axim Nuclear and Oncology offer calibration services for dosimetry equipment to medical and industrial fields. Equipment includes Personal Dosimeters, Survey Meters, Dose Calibrators, and other radiation measurement instruments. All instruments are calibrated by approved calibration centers within South Africa.



ORTEC electronics provide a critical role in a majority of gamma spectroscopy counting laboratories, physics research institutes and other gamma spectroscopy applications globally.

The ORTEC range of modular electronics includes instruments in NIM formats as well as other modular instruments, such as photomultiplier bases, preamplifiers, and other accessories. ORTEC also offers modular instruments for pulse height spectroscopy, fast timing, counting, high voltage power supplies and other special functions.

In addition to modular electronics ORTEC is also an industry leader in digital electronics. Whether the fully integrated DSP based workstation family of DSPECs, or portable, field friendly digiDARTs, ORTEC offers a full suite of digital solutions to meet all your needs.

551 Timing Single Channel Analyzer

  • Single-channel analyzer and timing signal derivation
  • Trailing-edge constant-fraction timing provides walk <±3 ns for 100:1 dynamic range
  • Integral, normal, and window modes
  • Separate lower-level and upper-level discriminator outputs
  • DC-coupled
  • Adjustable delay 0.1 to 11 µs
  • Provision for external baseline sweep

The ORTEC Model 551 Timing Single-Channel Analyzer performs the dual functions of single-channel pulse-height analysis and timing signal derivation. The patented trailing-edge constant-fraction timing technique provides unexcelled timing on either unipolar or bipolar signals and shows better results than are possible with conventional leading-edge discriminators.

556 and 556H High Voltage Power Supply

  • For use with photomultiplier tubes, microchannel plates, proportional counters, and Geiger-Mueller tubes
  • 0 to ±3 kV
  • 0 to 10 mA
  • Digital meter reads output voltage or current
  • Overload and short-circuited protected
  • External control of output voltage
  • 115 or 230 V ac, 47 to 63 Hz input power

The ORTEC Models 556 and 556H High-Voltage Power Supplies provide the noise-free, well-regulated, very stable high voltage necessary for proper operation of photomultipliers, ionization chambers, semiconductor detectors, electron multipliers, and many other devices.


BX3 Irradiator

Box calibrators are fully-shielded, self-contained irradiator systems requiring no separate control room. Compact and easy-to-use, box calibrators provide convenient and versatile calibration of a wide range of radiation survey meters and personnel dosimeters.
Many calibration laboratories are challenged by an increasing workload and dwindling resources. The Hopewell Designs model BX3 Box Calibrator can help by automating many time consuming daily tasks. The fully automated BX3, uses the modular LabVIEW software and is computer controlled with touch screen technology. Irradiator set-up and calibration, exposure rate and decay corrections are all done with a touch of the screen.
Ease-of-use is a high priority in our BX3 design. Features include a large door (16” x 15”) and oversized leaded glass-viewing window (10.5” x 16.5”). The Model BX3 is equipped with a precise, rigid, dual-axis linear positioning track that provides amazing accuracy (+/- 0.1 mm). Instrument placement is easy and repeatable using jigs, etched grid, and dowels on the instrument platform. Versatility of the Model BX3 is enhanced by the use of single or dual sources from 300 mCi to 2200 Ci, dual axis positioning track and ports for extendable probes. With its fail-safe design, redundant interlocking and password-protected software, the Hopewell Designs Model BX3 Box Calibrator exceeds all federal, state and local government regulations and provides a safe, secure, easy-to-use system that will increase efficiency and accuracy.


Nuclear Research Equipment

High Purity Germanium (HPGe) Radiation Detectors

Semiconductor based photon radiation detectors have been evolving for over half a century, with ORTEC pioneering commercial availability for a majority of that time. Initial offerings were based around lithium-drifted germanium Ge(Li) and lithium-drifted silicon Si(Li). Ge(Li) was later replaced with more advanced, high purity germanium (HPGe) detectors. ORTEC provides a comprehensive suite of HPGe detector solutions covering an extensive range of energies and for a variety of applications.

905 Series NaI(Tl) Scintillation Radiation Detectors

A gamma ray interacting with a scintillator produces a pulse of light that is converted to an electric pulse by a photomultiplier tube (PMT). The PMT consists of a photocathode, a focusing electrode, and 10 or more dynodes that multiply the number of electrons striking at each dynode. A chain of resistors typically located in a plug-in tube base assembly bias the anode and dynodes. Complete assemblies including the scintillator and PMT are available.

Personal Dosimetry

Dose Rate Meter 6150AD

The 6150AD is a calibratable dose rate measuring device in a robust, watertight die-cast aluminium housing. The built-in counter is used to measure photon radiation (X-ray and gamma radiation). As the letters “AD” in the designation indicate, the device has an analogue and digital display with automatic range switching. Warning tones and the acoustic single pulse detection are emitted via a piezo sounder, which is integrated in the housing. A connector pin of the probe socket serves as a serial interface and can be used to transfer and evaluate the device display (dose rate) to a PC. The 9-volt battery (IEC 6LR61) included in delivery lasts for approx. 3000 operating hours.
The probe socket on the left side allows for the connection of external probes. When a probe is connected, the internal counter of the 6150AD is automatically switched off and it is then measured with the detector of the probe. The 6150AD automatically recognises the probe type (e.g. display “ext 18” when connecting a probe 6150AD-18) and selects display areas and units according to the probe type. No fixed allocation between the probe and device has to be observed. The probe cable can be up to 100 m long.


Personal Radiation Detector PM1703GNA-II

Upgraded PRD PM1703xx-II Series have improved CsI(Tl) detector characteristics and fully comply with ANSI N42.32-2016.
The extended measurement range is enabled by the installed new CsI(Tl) detector with a semiconductor photomultiplier (SiPM).
* Instruments of PM1703xx-II Series were successfully tested in ORNL.

PM1703GNA-II is a gamma-neutron PRD, which has such competitive features as high sensitivity, compact size, user-friendly interface, low-energy operation, waterproof and shockproof case. The instrument can be used in both indoor and outdoor environments for detection and localization of gamma and neutron radiation sources and measurement of dose equivalent rate (DER).

Teletector Probe

The calibratable Teletector Probe 6150AD-t/E is a portable probe which, in conjunction with a dose rate meter 6150AD, is used to measure photon radiation (gamma and X-rays) in the quantity of H*(10). The two Geiger-Müller counters at the end of the telescope offer a very wide dose rate range. The counter for the low area is located behind the window in the front of the counter housing and can also detect beta radiation. Switching between the two counters is automatically done by the 6150AD. The power supply comes from the 6150AD.
The stainless-steel telescope can be continuously extended to a total length of approximately four metres. This allows a greater distance from the radiation source with a correspondingly reduced radiation exposure. It also makes measurements in hard-to-reach places easier.
As long as the button above the handle of the Teletector probe is kept pressed, the 6150AD works with its built-in counter. This allows the radiation conditions at the user’s location to be checked temporarily. An integrated short probe cable and the removable carrying strap are included in the delivery of the Teletector probe but not with the 6150AD.

X-Ray and Gamma Personal Dosimeters PM1610A

Electronic personal dosimeters of PM1610 series provide measurement of dose equivalent (DE) and dose equivalent rate (DER) of continuous and pulsed X-ray and gamma radiation in the energy range from 20 keV to 10 MeV, as well as time of dose accumulation. Instruments have audible, visual and vibration alarms to warn the user when pre-set dose/dose rate threshold levels are exceeded. Shockproof rubberized case and LCD with fluorescent backlight allows operation in harsh environment. Dosimeters are compact and easy in use and have long life built-in rechargeable battery.
PM1610 series is recommended for use by medical professionals, first responders, customs and border patrol, radiological and radioisotope laboratories, professionals exposed to pulse radiation.


Advanced Electron Density Phantom

Accurately converting CT values to HU or electron density values plays an important role in transitioning from diagnosis to a specific treatment protocol. With the Advanced Electron Density Phantom, ICRU-44 matched tissue equivalence, automation and smart design all serve to remove uncertainties from your energy conversions.


The CIRS Model 002LFC IMRT Thorax Phantom for film and ion chamber dosimetry is designed to address the complex issues surrounding commissioning and comparison of treatment planning systems and complete system QA from CT imaging to dose verification.
The 002LFC is elliptical in shape and properly represents an average human torso in proportion, density and two-dimensional structure. It measures 30 cm long x 30 cm wide x 20 cm thick. The phantom is constructed of proprietary tissue equivalent epoxy materials. Linear attenuations of the simulated tissues are within 1% of actual attenuation for water and bone, and within 3% for lung from 50 keV to 15 MeV.
Tissue equivalent interchangeable rod inserts accommodate ionization chambers allowing for point dose measurements in multiple planes within the phantom. Hole placement allows verification in the most critical areas of the chest. One half of the phantom is divided into 12 sections, each 1 cm thick, to support radiographic or GafChromic ® film. Additional inserts are available to support a variety of other detectors including TLD’s, MOSFET, and diodes.

DR, CR, & Fluoroscopy Solutions

Perform quality control testing of your Digital Radiography (DR), Computed Radiography (CR) and Fluoroscopy X-ray systems with ease. Comply with local, state, federal, and governing bodies for digital and traditional analog radiographic imaging technologies.

Gamma Flood

Rigid PMMA flood phantom for the quality control of detector homogeneity and subsequent correction in gamma cameras.
The two filling and venting plugs of the Leeds Gamma Flood phantom are situated on the flat surface, not on one of the edges as with many other manufacturers. This is because filling from the edge necessitates that the phantom stands up on the opposite edge. In such an orientation, water pressure develops on the flat faces, forcing them outwards (bulging). The bulging does not easily rectify itself even when the phantom is placed flat, and so the difference in thickness causes unequal thickness of the test solution which might be mistaken for non-uniformity in the distribution of radioactivity.

Phantom for Intraoral Radiography Assessment, Testing & Evaluation

The CIRS Phantom for Intraoral Radiography Assessment, Testing & Evaluation (PIRATE) is a standard of reference for diagnostic radiology of the jaw. The phantom is designed to assist technical and clinical staff in the selection, monitoring, training and verification of scanning parameters common to intraoral radiological imaging procedures and other common dental procedures.
Our PIRATE phantom consists of maxilla, mandible and holding device. It can be mounted to included tripod with ballhead fitting for flexibility in positioning. The maxilla and mandible are hinged to allow a dental technician to place a bitewing film or other intraoral devices with a holder and image the phantom.
The phantom is constructed of proprietary tissue-equivalent materials that mimic reference tissues within 1% by linear attenuation for the dental x-ray and other dental imaging procedures.
The Model 134200 approximates the average male human jaw in both size and structure. The phantom features detailed 3D anthropomorphic anatomy including bone, sinus, maxilla, mandible, mandibular nerve and teeth. The bones contain both cortical and trabecular separation. The teeth include distinct dentine, enamel, root canal and crown. One tooth includes a fracture and a second includes a cavity.


Resolution Test Patterns

These test patterns are designed for quick quantitative assessments of the limiting spatial resolution of an x-ray system. The line pair patterns consist of a thin foil of Lead sandwiched between plastic plates. In the foil, linear slits are cut with a range of widths, these alternate with linear bars of the foil of equal width. One slit and one bar is referred to as a line pair, and the width of each group of lines is specified in terms of the number of line pairs per mm (LP/mm).

Ultrasound Phantoms

Sono Ultrasound Phantoms are relied on for training and QA testing of B-mode ultrasound systems. A selection of models supports your clinical needs, and helps you meet requirements.


TOR 18FG fluoroscopy phantom is a routine test object designed to be used quickly and easily on a regular basis (e.g., weekly/monthly) to provide an ongoing check of imaging performance, particularly those aspects which are most liable to deterioration. After an initial grey-scale check, image quality is measured simply by counting the number of details detected and the number of bar-patterns resolved in the image. An ongoing record of these numbers will reveal any trend towards deterioration in imaging performance.

Radiation Monitoring

Multipurpose Hand-Held Radiation Monitor/Identifier PM1401K-3PM

PM1401K-3 is the smallest and the most lightweight instrument in the world, which is capable to operate simultaneously as an alarming device, search instrument, survey meter, spectrometer, and identifier.
The instrument can be used both indoors and outdoors and is intended for everyday and/or emergency use by officers of radiological and isotope laboratories, specialists of different industries, agriculture, transport, medicine, customs and border services, firefighters, military, police and other first responding agencies.

Radiation Monitor PM5000B-01

Radiation Portal Monitors (RPMs) of PM5000B Series are highly sensitive fixed installation systems designed to automatically detect illicit trafficking of radioactive materials.
Application: airports, seaports, railway stations, customs and border checkpoints, nuclear plants and other facilities of the nuclear industry, nuclear waste disposal and storage sites, scrap metal industry, governmental offices, banks and post offices.


TEDA Impregnated Carbon Cartridges

TEDA (triethylene di-amine) impregnated Carbon filter media has a high affinity for the adsorption, chelation and retention of the various species of Iodine. The HI-Q Environmental Products Company manufactures a number of configurations of activated carbon cartridges to fit almost all industry standard cartridge holders. The most common size in the industry is the 2¼” dia. x 1” thick unit. These are HI-Q’s “TC-Series” cartridges. This cartridge container is made of radiation yellow, high density polypropylene which is chemically inert, with a spun polypropylene retainer. The cartridges are easily cut open for analysis. Other popular HI-Q cartridge configurations, are the 2½” dia. x 1” (TCAL-Series), and the 2½” dia. x 1½” (TCGA-Series) metal can configuration commonly used in post accident monitors. All cartridges are heat-sealed in an airtight 6-mil polyethylene package to prevent contamination before use. The unopened package has an industry accepted ten-year shelf life. Ten cartridges are contained in each package/sleeve. Custom packaging is available with no minimum order.

V-FLO-XX – Air Flow Measuring Unit

The V-FLO-XX series units incorporate a flowmeter and a precision-machined venturi tube to create a pressure differential across a fixed orifice which floats the indicating ball in the flowmeter. By varying the flow velocities, the pressure differentials are measured & recorded against a laminar flow element whose calibration is certified and traceable to the National Institute of Standards and Technology (N.I.S.T.). The recorded volumetric flow units are then marked directly on the attached flowmeter scale. HI-Q’s V-FLO models are accurate within ±5% of full scale reading. The standard V-FLO-XX body is six inches long and threaded on both ends with 3/8” female NPT. The complete unit includes one male (outlet) & one female (inlet) 3/8” quick disconnect fitting. The V-FLO-XX, venturi flow meters are intended for in-line use.

VS23 Series – Continuous Duty, Constant Flow Air Sampling Systems

The VS-Series Air Sampling Systems can be either incorporated as the primary vacuum source in air monitoring instrumentation or used in conjunction with filter holders and filter media for the collection of particulate and/or gaseous constituents. The systems are furnished complete with a shock mounted base motor/pump, carrying handle, heavy duty constant air flow control valve (MCV-260), venturi flow meter, exhaust muffler, hard mounted toggle switch, 8 foot 14/3 grounded power cord, fuse holder, fuse and a 3/8” female quick disconnect for easy filter holder and sample line replacement. All rotary vane motor/pumps have automatic overload cut off and are warranted for one year after purchase.
All 1/4 and 3/4 HP units include hard mounted toggle switch, 8 foot 14/3 grounded power cord, fuse holder and fuse.

Radioactive Sources

Cylindrical Phantoms

Cylindrical phantoms are used for 2D and 3D normalization and in test images of PET and PET-CT systems. Radioactive element is uniformly filled in the cylindrical cast. Each cylindrical phantom manufactured is checked with a PET-CT scanner to ensure high quality.

Dose Calibrator Sources

Dose calibrator reference sources are calibrated by direct comparison of standardized solutions traceable to the National Institute of Standards and Technology (NIST), in an identical geometry, using a pressurized ion chamber with ±%5 accuracy. Dose Calibrator sources are manufactured by adding 20 ml activity of epoxy composition in 30 ml volumed of polyethylene vial. Each dose calibrator source has its own colour-coded epoxy. Cobalt-57, Cobalt-60, Cesium-137, Barium-133 dose calibrator reference sources can be supplied in set or individually in accordance with customer request.

Flood Sources

Co-57 flood sources are intended to produce uniform radiation field across the camera’s usable field of view with the methods of NEMA NU-1-2007 to evaluate the gamma camera uniformity.
Lead shielding and carrying case accessories to provide high-level radiation protection during Co-57 flood source transportation.
Unless otherwise indicated, flood source orders come with the lead shielding as a standard accessory.
An optional aluminium carrying case is supplied upon customer request.

Line Sources

Line sources are double layered tubes and made of high quality stainless steel. Each line source is sealed on its ends by the process of precise argon welding. Thanks to the argon welding process, the possibility of activity leakage is eliminated, ensuring safe use of line sources.
Source related information including product code, isotope type, activity, serial number, and production date is permanently marked with laser for traceability.
Each line source is tested with 5 mm steps of scanning’s throughout its length for uniformity.
The uniformity of the line sources is within +/- 5% limits.

Point Sources

Na-22 point sources are in two different forms; glass filled Teflon capsule and acrylic disc. Epoxy marked active area is located in the centre of the point source with the dimension of 1mmx1mm (0.39”x0.39”)
Overall dimensions for glass filled Teflon capsule and acrylic disc type point sources are 25.4mmx6.35mm (1”x0.25”) and 25.4 mm x 5 mm (1”x 0.20”) respectively.