FH 40G NBR gamma dosimeter
Product model:
Brief description:For artificial gamma radiation and abnormal gamma radiation field energy, the red/green flashing of the NBR probe is used to indicate extremely quickly. The use of advanced ADF technology (AdvancedDigtial Filter-advanced digital filter) can respond quickly to slight increases in radiation levels.
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Detailed introduction
FH 40G NBR gamma dosimeter
Product introduction:
l for environmental levelsX, γ dose rate measurement, while detecting hidden radioactive sources and confirming artificial radiation sources
l Artifacts are difficult to distinguish using known quantitative measurement methodsFluctuations between γ source and natural background
l Although for highly shielded artificial sources, inorganic scintillator and high-resolution germanium semiconductors can be used to measure the spectrum, it takes a long time.
l and inThe measurement point peak within 100mS to a few seconds has poor statistics. In addition, the shielding effect of the object itself on the natural γ background reduces the natural background by 50%, so it is difficult to detect weak sources.
l Even if we use the method of measuring the effect, measuring the background at another location, and then subtracting the results, it still takes a long time to measure weak sources.
l adoptThe measurement device of NBR technology uses at least two comparators connected to the scintillator for automatic range conversion. One comparator corresponds to the high threshold, and the other comparator corresponds to the low threshold. The integral count rate above the threshold is measured.
l The measured two-threshold count rate ratio if compared with the naturalIf the ratio of γ radiation is consistent or within the error range, a signal without γ source will be given. If the difference is greater than 20%, a signal with artificial γ source will be given.
Product features:
l For manualAbnormal gamma radiation and gamma radiation field energy are indicated extremely quickly by the red/green flashing of the NBR probe.
l Adopt advancedADF technology (AdvancedDigtial Filter-advanced digital filter) can respond quickly to slight increases in radiation levels
l Up to high-performance host, multiple options to meet different needs
l Detection efficiency of 2000S-1/μSv/h (137Cs)
l NBR's proprietary technology can detect hidden radioactive sources and confirm artificial radioactive sources
l Intelligent host, multiple detectors optional
l 
PTB certification: Z23.01/96.06
l FB certification: DL/FW/IdF029820, can be used in fire brigade
Product application:
l Environmental monitoring
l homeland security
l emergency response
l nuclear related fields
Technical parameters:
FH 40GL-10(host) | |
energy range | 30keV ~ 4.4MeV |
Measuring range | 1nSv ~ 1Sv/h |
Sensitivity | 2s-1/μSv/h |
weight | 410g , excluding battery weight |
battery life | >250 hours (not connected FHZ 672E-10） |
>30 hours (connect FHZ 672E-10） | |
load capacity | 50Sv/h |
angle dependence | -75。~75。The angle change per unit in the longitudinal axis direction between20% |
working temperature | -30℃~55℃ |
Working humidity | 10%~95% |
Protection level | IP67(Waterproof up to0.8meters deep) |
FHZ 672E-10 (probe) | |
energy range | 30keV ~ 4.4MeV (expandable to 10Mev) |
Measuring range | 1nSv/h ~ 100μSv/h |
Sensitivity | 2500s-1/μSv/h |
detection limit | Less than typical natural dose rates20% |
Protection level | IP52 |
working temperature | -30℃~50℃ |
Working humidity | 10%~90% |
line sex | ≤±10% |
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