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BDBG-09 / IT-09T
Detecting unit of gamma radiation BDBG-09 with information panel IT-09T for constant monitoring
Purpose of use:
-measurement of ambient equivalent dose rate (EDR) of gamma radiation;
-displaying of measurement results of ambient equivalent dose rate of gamma radiation (EDR) that have been obtained from the BDBG-09 detecting unit of gamma radiation;
-displaying of current time;
-displaying of ambient air temperature;
-audio and light alarm at threshold levels exceeding of gamma radiation ERD.
Features:
-Data exchange between the detecting unit and the data panel through RS-485 interface;
-Constant self-testing of BDBG-09;
-Availability of the statistical accuracy of measurement;
-Protection jacket of BDBG-09 is IP67;
-Average service life of the detecting unit BDBG-09 is not less than 10 years;
-EDR display range of IT-09T, µSv/h, 0,1...10(7);
-Ambient air temperature display range of IT-09T from - 40 to + 50C;
-The possibility of programming of three threshold levels for IT-09T within the range of 0.01 µSv/h to 9.99 µSv/h with discreteness of 0.01 µSv/h;
-Threshold levels exceeding signaling - audio (with different soundings for every threshold level), and light (color change of EDR measurement result display);
-The possibility of operation in the network via RS485 interface for IT-09T;
-Power supply of IT-09T from industrial network (220 V) through power adapter;
-Operating mode of IT-09T is 24 hours continuous;
-Mounting method of IT-09T is upright wall-mounted.
Delivery kit:
-IT-09T data panel;
-connecting cable;
-power adapter from 220 V network;
-operating manual;
-BDBG-09 detecting unit of gamma radiation kit.
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The GammaRAE II-R is two instruments in one: it has the rapid response of a detector and the accurate dose measurement of a dosimeter. It is designed specifically to meet the needs of first responders.
This instrument contains two separate sensors. The Cesium Iodide (CsI) scintillator provides a fast, two-second response to radiological threats, while the energy-compensated PIN diode provides high dose rate range coverage and accurate dose measurements.
The GammaRAE II-R accumulates accurate total dose. Stored dosage data can be cumulative or reset for each use period. It alerts the wearer with a loud audible alarm, big, bright flashing LEDs, and a built-in vibration alarm. For stealth operations, law enforcement personnel can disable each alarm individually.
Immersible (IP67) design makes for reliable operation in wet environments and easy decontamination. IS certification permits operation in potentially flammable/explosive environments.
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- Real-time gamma and neutron source location from the ground or the air.
- Locates illicit transportation or lost sources.
- Omni-directional sensitivity.
- Integral GPS and Mapping software provides precise location of sources and
historical record of area covered.
- Advanced data collection technique (list mode) means no "dead spots."
- Clear and flexible data presentation.
- Compact and Modular: flexible packaging solutions to match application need.
- Powerful analysis of Gamma-ray spectra.
- Latest version1 includes many experience-based improvements.
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SAM 940 Revealer with Reachback Program
Confidence factors when identifying radioactive materials are critical to a successful mission. To give your end users an edge over traditional identification methods, the latest in MCA and algorithm technology has been coupled with a new detector material for gamma ray collection. The SAM Revealer comes standard with a 1.5%u201D x 1.5%u201D lanthanum bromide detector (LaBr ) and the QCC%u2122 statistical enhancement transform which provides background subtraction in real time and therefore the highest degree of sensitivity. The SAM is designed to operate in any background (high or low), including Bremsstrahlung or Compton, with the interference subtracted in real time (one second or less). With this advanced identifier, your spectroscopic data collection, isotope identification and data analysis reporting are all automated with exceptional resolution. This large improvement in resolution also allows quick identification of mixed radionuclides, a typical problem with the overlapping peaks of lower resolution sodium.
Peak Resolution
One critical specification for gamma ray detectors is peak resolution. In nuclear spectroscopy, we often express the resolution as a percentage at 662 keV (cesium). For the SAM Revealer, the typical resolution is 2.8%. This is about 2.5 times better than sodium iodide detectors and therefore allows separation of many closely spaced peaks.
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Landauer's InLight® System offers simple, versatile turnkey on-site analysis capabilities as a solution for personnel monitoring and other dose measurement applications. InLight on-site solutions are scalable, from manual single dose measurement to automatic multi-dosimeter analysis options.
Ideal for small laboratories processing dosimeters in-house to full service laboratories providing personnel services, an InLight System can quickly determine the severity of an exposure or precisely track dose over time
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The SVG 2 is a hand-held, ruggedized micro-processor controlled radiation detector, based on state-of-the-art semiconductor technology. Equipped with integrated sensors for gamma and neutron radiation detection, an internal personal dosimeter, and an external a/b - g probe in the basic set
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This detector is composed by several tubes (8, 16 or 32 tubes for instance), which are able to be linked. In order to build very large detection surface. Each tube is able to detect neutrons by localization.
The second dimension is given by the index of the tube. Then, resolution perpendicular to the tube is given by its diameter or the how they are positionned to each other.
In each tubes, the localization is done on 8 bits; maximum of resolution is 1/256th of the tube length, for a given pressure in He3 and CF4.
These detectors are robuste, and are able to accept high counting rate (50kHz per tubes). They are versatile, and by using this technics, high detection surface can be built (several square meters).
These detector woks in proportionnal mode; energy discrimination is possible, and then background due to gamma ray can be decreased.
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Features
Designed to respond to thermal, epithermal and fast neutrons
Measurement of tissue equivalent dose rate of the neutron field
SMART probe retains probe information in non-volatile memory
3He/BF3 proportional counter
10B attenuator
Polyethylene moderator
Excellent linearity and accuracy
Detectors are easily interchanged
Optional mounting bracket
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PTB-approved dosemeter for measuring gamma- and X-rays
measuring size: personal dose equivalent Hp (10)
detector: built-in GM-tube
digital indication of measured values on LC-display
dose indication range with floating point
doserate indication upon keystroke
high measuring accuracy
reliable measurement of radiation in a solid angle of 180° in front of the user
excellent reading of the display by a special shaped housing
switchable acoustic single-pulse indication
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Ionizing radiation that is associated with radioactivity cannot be directly detected by our senses. Ionization is the process whereby the radiation has sufficient energy to strip electrons away from atoms. The ionization results in the formation of free electrons and an ionized atom that has lost some of its orbital electrons. Examples of ionizing radiation include particles such as alpha and beta particles, and photon radiation such as x-rays and gamma rays. Neutrons and protons can also cause ionizations. Since radiation can be harmful to our health, we need detectors that are capable of sensing the presence and intensity of radiation and convert it into an electrical signal to provide suitable alarm. Geiger-Müller tubes are gas-filled radiation detectors that are useful, cheap and robust. A GM tube basically detects the presence and intensity of radiation (particle frequency, rather than energy). Geiger counters are used to detect radiation (usually gamma and beta radiation, but some models can also detect alpha radiation).Geiger-mueller counters respond to the commonly encountered types of radiation, namely, alpha and beta particles as well as gamma and x-radiation. In general, GM counters cannot determine the type, energy, or vectors of the detected radiation. Generally they are used for detecting and measuring radioactivity that consists of low level beta particles and gamma-ray radiation. It has high sensitivity, versatility with various types of radiation, wide variety of shapes and windows, large output signal and reasonable cost.
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Electret ion chambers become gamma monitors when sealed in a radon leak tight enclosures. Usually sealable Mylar bags or any other enclosures are used. These provide integrated gamma exposure over a time, in units of mR or nGy. Dividing such exposure by exposure period leads to the average exposure rate.
Chambers being made of electrically conducting plastic, these provide energy independent response. These have been used in the place of TLDs. certain areas where low energy gamma emitters such as Americium-241, EICs provide superior performance over TLDs. For very low energy applications the EICs with thin windows, such as 7 mg/cm2 thick carbon coated Tyvek, are used. With a choice of different chamber volumes and electrets, a wide variety of sensitivities and ranges are possible. For more information, please contact REI for details. Following publications provide additional information:
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