The 900 Series of radiation counters are well established in teaching, research, hospital and industrial laboratories. Their reliablity and convenient design are particularly attractive for industrial hygiene applications or where budgets are tight.
Product Detail
The Mini 900R, G & D monitors are equipped with energy-compensated GM probes. The 900X uses an uncompensated probe to extend the low energy response.
Mini 900R A monitor scaled over the range 0.5 to 5000 µSv h-1 (0.05 to 500 mR/h).
The G-M tube is compensated to give a useful response from 45 keV to 1.5 MeV and above.
It is not recommended for monitoring X-radiation from apparatus operating below 75kVp.
Mini 900G A sensitive instrument for environmental use.
The monitor is scaled over the range 0.05 to 75 µSv h-1 (0.005 to 7.5 mR/h). The useful energy range is 55keV to 1.5 MeV and above.
This instrument is not suitable for monitoring X-radiation.
Mini 900D A monitor using a partially compensated G-M tube to obtain an extended low energy response.
The instrument is scaled over the range 0.5 to 1000 µSv h-1 (0.05 to 100 mR/h). The useful energy range is from 30 keV to 1.5 MeV but response is maintained down to at least 17 keV.
It is suitable for measuring radiation from X-Ray apparatus operating at or above 45 kVp.
Mini 900X This instrument is scaled 0.5 to 2000 counts per second and uses an end window G-M tube without energy compensation.
It is sensitive to radiation down to 10 keV and is therefore useful for locating X-Ray leakage from a variety of systems including high voltage equipment where X-Rays are generated adventitiously.
It is not intended for measurement but as a relative check device.
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