Gamma Monitor/Pager PM1703M

Widely used in the front-line against illicit movements of radioactive materials, employed by law enforcement agencies, border police, and emergency response teams across the world. Also used in the metal recyling industry to monitor for the presence of radioactive sources. Based on a CsI(Tl) scintillator detector to give better sensitivity than Geiger-based devices and housed in a small, compact and lightweight unit, the device activates an alarm (audible and vibrating) when radiation levels pass a preset threshold, displaying the count rate on a backlit LCD. The unit may be switched between dose rate and counting modes for search, detection and dosimetry applications. Data including alarm times and levels are stored in a non-volatile memory and can be downloaded to a PC via an IR-channel. Also available with LiI(Eu) neutron detector incorporated (PM1703GN) for enhanced detection of plutonium.

Portable Gamma Monitor PM1710

A highly sensitive gamma radiation monitor specifically designed for search and location of nuclear materials, based on a CsI(Tl) scintillator detector to give higher sensitivity than Geiger-based devices. The unit incorporates audible and vibrating alarms to signal when radiation levels pass a preset threshold automatically calculated by the instrument. The alarm rate varies as the monitor approaches or recedes from the radiation source to aid location. Data including alarm times and levels are stored in a non-volatime memory and can be downloaded to a PC via an IR-channel. Also available with He-3 neutron detector incorporated (PM1710GN) for enhanced detection of plutonium.

Gamma-radiation Pager NukeAlert 951

The NukeAlert is a small and lightweight gamma pager designed specifically for non-technical personnel, with simple operation and display to warn when background radiation levels are exceeded. Ideal for security screening, monitoring scrap metals for radioactive sources, and related applications. Based on a CsI(Tl) scintillator, the device incorporates audible, vibration and flashing LED alarms which activate at elevated radiation levels; alarms pulses and vibrations increase with the radiation level, while the LED alarm changes colour from orange to red. An LED display shows radiation level on a scale of 1 to 9, with 9 corresponding to approx. 25 µSv/hr; a dose rate equivalence chart is included in the operation manual.

Gamma Pager/Dosimeter PM1621

High sensitivity, compact Geiger-based pager/dosimeters used for conducting surveys of radiation levels and measuring radiation dose. Incorporates vibration and audible alarm to warn the user of elevated radiation levels; alarm thresholds can be set in terms of both dose rate and accumulated dose. Measures dose and dose rate (personal dose Hp(10) ) from photon radiation down to low energy X-rays (10 keV). Detector is a Geiger-Müller tube, with a dose rate measurement range of 0.1 µSv/hr - 0.1 Sv/hr (option for 1 Sv/hr maximum) displayed on a backlit LCD. I Data including dose histories and alarm events are stored in a non-volatile memory and can be downloaded to a PC via an IrDA (infra-red) port (software included). A clip on the rear of the instrument allows the user to wear the instrument on a belt or pocket.

Radiation Monitor RadAlert 100

A popular general purpose Geiger-Müller detector with mica window, used for measurement of alpha, beta, gamma, and X-radiation down the 10 keV. Ideal for measurement of doserate from beta and gamma sources in environemental control applications, checking for X-ray leakage, etc. Its digital display can be switched to readout in terms of µSv/hr or in mR/hr (dose rate); also the readout can be expressed in terms of counts-per-minute or counts-per-second. A red LED blinks and a beeper chirps with each count (the chirp can be muted). Incorporates audible and silent alarms; readout updates every 3 seconds. Dual miniature jack sends counts to computers, data loggers, while submini jack provides audio output to an external earpiece or amplifier.

Radiation Monitor PalmRad 907

Designed for contamination monitoring, security applications and first responders. Based on a Geiger-Müller detector with mica window, with a larger tube compared to the RadAlert 50, giving higher sensitivity for search and detection applications. Incorporates audible and silent alarms; display can be switched between count rate and dose rate modes. Updates every 3 seconds. Special circuitry holds display at full scale at radiation levels above the maximum reading, so avoiding "max-out" scenario. Dual miniature jack sends counts to computers, data loggers, while submini jack provides audio output to an external earpiece or amplifier. Also available with a 70 mm diameter external Geiger-Müller probe (Inspector EXP model) instead of an internal G-M tube.

Pocket Dosimeter PM1203M

Multipurpose professional instruments designed for continuous measuring of gamma ambient dose equivalent (DE) H*(10) and dose equivalent rate (DER) H*(10). Incorporates both dose rate and accumulated dose alarms; flashes warning in the event of reaching maximum instrument dose. Features special function for measurement of DER levels for control purposes. Data are stored in a non-volatile memory and can be downloaded to a PC via an IrDA (infra-red) port (software included).

Compact Personal Dosimeter PM1604

Compact professional dosimeters measuring dose and dose rate (personal dose Hp(10) ) from X-ray and gamma radiation. Detector is a Geiger-Müller tube, with a dose rate measurement range of 1 µSv/hr - 5 Sv/hr (option for 10 Sv/hr maximum) displayed on a backlit LCD. Incorporates both dose rate and accumulated dose alarms; flashes warning in the event of reaching maximum instrument dose. Data including dose histories and alarm events are stored in a non-volatile memory and can be downloaded to a PC via an IrDA (infra-red) port for personnel dose management and accounting (software included).

Wristwatch Gamma Dosimeter PM1603

A Geiger-Müller detector built into a digital wristwatch with shockproof hermetic case, continuously displaying dose rate (1 µSv/hr - 5 Sv/hr) and accumulated dose on a backlit LCD (ambient dose H*(10) ); includes audible alarm in case dose or dose rate thresholds are exceeded, and flashing LCD signal at maximum reading. Accumulated dose and dose rate measurement histories can be stored in the device's non-volatile memory and downloaded to a PC through a standard IrDA (infra-red) port for dose accounting and control. Watch functions include calendar (day, date, month, year), alarm and stopwatch, water resistant to 1m depth.

Gamma Pager/Dosimeter PM1621 - see previous section (above)

Portable Spectrometers

Multipurpose Radiation Monitor PM1401K Identifier

Unique radiation survey meter incorporating three detectors for multipurpose use in a package small enough to be worn on a belt. Designed for detection and measurement of alpha, beta, gamma and neutron radiation, the instrument incorporates 4 measurement channels for: detection, location and identification of radioactive sources; dose rate measurement including alarm; measurement of surface contamination by alpha and beta sources; neutron source detection. On-board detectors as follows: CsI(Tl) scintillator for detection of gamma radiation, with spectroscopic capability for source material identification; Geiger-Müller counter for dose rate measurement and alpha/beta surface contamination survey; He-3 chamber for neutron detection. Includes 1024 channel analyser for gamma spectroscopy with spectra displayed on the LCD. As an option, the PM1401K can be supplied with an IPAQ Pocket PC and software for isotope identification, with data transferred in real time via IrDA (Infra-red) or Bluetooth wireless channels.

SAM 940 Defender

Advanced real time isotope identifier with simple, one-handed operation, designed for first responder units, allowing identification of multiple radionuclides within one second. PC communication through CompactFlash card, ethernet, or USB. Several detector options are available: sodium iodide (NaI) for good efficiency and optimum price/performance, and fast and accurate isotope identification (2"x2" and 3"x3" available); lanthanum bromide fro exceptional energy resolution (3% at 662 KeV); and lithium (6Li) neutron detection for enhanced detection of special nuclear materials. A GPS package option is also available.

Portable Gamma Spectroscopy System SAM 935

Gamma spectroscopy system incorporating an internal NaI scintillator detector for detection and identification of radioactive materials, used for surveillance and general gamma spectroscopy applications. Incorporates alarm that can be set globally or on an isotope by isotope basis (library can store over 90 isotopes); in dose rate mode, the user can measure ambient dose rate along with the isotope break down or individual contributions to the total dose rate. AC power can be used for wall mounted or table-top systems. Additional options include He-3 neutron detector and various external detector options. Data can be downloaded to a PC via both RS-232 and RS-485 communication interfaces for storage and further analysis.

Multipurpose portable radiation monitor PM1402M

A portable radiation detection laboratory incorporating a central processing unit and 5 external radiation detectors, housed in a robust carrying case together with cables and accessories. Used for detection and measurement of alpha, beta, gamma, and neutron radiation; full external detector set consists of two CsI(Tl) scintillators for search and spectroscopy; a Geiger-Müller counter for dose rate measurement; a He-3 neutron detector; and a gas proportional counter for alpha and beta detection. The system is modular and may be supplied with any combination of probes. The processing unit features a 512 channel analyser with storage capacity for 110 spectra, which can be downloaded to a PC for analysis via an RS-232 data port plus audible and vibrating alarms.

ICS-4000 Radionuclide Identifier

The ICS-4000 Radionuclide Identifier is a hand held gamma-ray spectrometer that combines a multichannel analyzer with a high resolution Cadmium Zinc Telluride (CZT) detector. The ICS-4000 is programmed to automatically analyze gamma ray spectra and report detected radionuclides and dose rates. Users can select from preprogrammed isotope libraries or can define custom libraries from a list of over 160 radionuclides. In addition, an auto-ranging, alarming dose rate meter provides audible and visual indicators of dose rate, with user settable dose rate units and alarm levels. An alarm log records the time and radiation level each time an alarm is activated. Two modes of operation are provided: Normal and Expert. In "Normal" mode a single keystroke begins analysis. “Expert” Mode provides an expanded feature set. Spectra can be observed in either mode. Data files can be uploaded to a PC automatically using the ICS Explorer file management software. Multiple accessories including a hard carrying case are supplied as standard. External CZT probes are also available including submersible and ruggedized versions.

Portal Monitors PM5000 / PM5000E

Portal monitors are a fixed monitors designed to prevent illicit movement of radioactive and nuclear materials into any controlled area, whether at a border crossing or an entrance to an individual building or housing compound. The monitors are based on a modular design that can be adapted to control the movements of pedestrians, trucks, cars, trains etc. according to the requirements of the security situation; the system may consist of gamma and neutron detectors, video monitoring system, pager and communication system to the personnel responsible for radiation control and security procedures. Assessment for each installation is made on an individual basis and depends on factors such as distance between monitors (e.g. single or double rail track, road or checkpoint width, vehicle height etc.). Units are housed in pillar mounted on metal framing; PM5000 units consist of individual gamma and neutron detector modules, PM5000E units consist of combined gamma and neutron detectors. Each installation is site specific: monitors can be configured for any requirement from small pedestrian monitors to large, highly sensitive railway monitors: please contact us for more information.

 

• Radrisk supplies both active and passive systems for professional radon gas monitoring. Please consult us for more details on the equipment featured below or to discuss which system best suits your radon measurement requirements.

RAD7 Continuous Radon Measurement System

The RAD7 continually measures radon and thoron concentration, showing both on a spectrum printout, and also functions as a sniffer with audible count signal to locate radon entry points. The unit features the fastest response and recovery time of any system on the market, and is able to measure radon concentrations at the 200 Bq/m³ action level (UK and EU new buildings) in less than 1 hour with 10% standard deviation. The virtual absence of intrinsic background (0.2 Bq/m³) gives the RAD7 an extremely low detection threshold, easily measuring below 4 Bq/m³. The instrument is microcomputer controlled, featuring step-by-step instructions for ease of use. Data can be displayed on the unit's LCD, printed on external printer (supplied) or downloaded to a PC for further analysis. The unit is a complete, portable stand-alone system with a built-in air pump, supplied in a rugged carrying case, total weight 5 kg. Additional accessories allow measurement of radon in soil and water (continuous and sample measurement); the RAD AQUA continuous water measurement accessory allows measurement of water radon to concentrations as low as 1 Bq/m³.

E-PERM Electret Ion Chamber System

The E-PERM system employs re-usable passive integrating ionization chambers, known as electret ion chambers, which are placed in the measurement location for a specific period of time and then read out with a user-friendly electret voltage reader. Electret ion chambers are low cost devices and are supplied in order quantities of 10, thus several measurement locations can be surveyed simultaneously. Short term chambers (measurement period from several days to several weeks, sensitivity 300 Bq/m³-days with short-term electret) and long term chambers (measurement period several weeks to several months, sensitivity 75 Bq/m³-days with long-term electret) are available. As passive devices with no moving parts or electronic components, electret ion chambers are suitable for use in a wide range of locations and conditions. Radon concentrations are calculated from the electret voltage reduction using a handheld computer or PC. Accessories for measurement of radon in water are also available.