German BERTHOLD LB6411 neutron probe
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Brief description:It has the highest sensitivity and is very suitable for measuring in very weak neutron radiation fields. ICRP Publication No. 60 recommended the use of a new radiation unit. Bertholdt Company and Karlsruhe Company jointly developed the neutron dose rate meter LB6411. The system probe uses the patented He-3 proportional counter tube.
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Detailed introduction
germanyBERTHOLD LB6411 Neutron Probe
Product introduction:
l It has extremely high sensitivity and is very suitable for measurement in very weak neutron radiation fields.
l ICRP Publication No. 60 recommended the use of new radiation dose units. Bertholdt and Karlsruhe jointly developed the neutron dose rate meter LB6411
l The system probe adopts patentedHe-3 proportional counter tube
l The counting tube is placed in diameter 250mm moderating ball center
l The geometric position of the counting tube is based on the Monte Carlo simulation program (MCNP) calculation results and obtained a patent
l The instrument has a very high sensitivity, and everynSv is about 3 counts, which is very suitable for measurements in very weak neutron radiation fields.
l Can be used as a portable dosimeter or as a fixed dose monitor
l The monoenergetic neutron fluence response experiment was conducted at the Braunschweig Institute of Physics in Germany.
Features:
l This instrument has everyNSV has high sensitivity of about 3 counts
l Can be used as a portable instrument or as a fixed monitor
l Calibration of neutron surrounding dose equivalentsH *（10）
l The thermal energy of neutron detection reaches20 MeV
l energy dependence±30% between 50 keV and 10 MeV
l Extremely high sensitivity and therefore low measurement times in weak neutron fields
Technical parameters:
System host | LB1230 |
Display | High contrast LCD dot matrix display, resolution32 x 84 pixels; with backlight, 4-digit display of measurement results, automatic range expansion |
Operation | 1 switch key, 4 operation keys |
Probe connection | 8-pin socket Fischer 04, spiral cable LB 75576 (standard) |
temperature range | -15℃ - +50℃ |
Size | 145 mm (H) x 170 mm (W) x 45 mm (D) |
weight | approx.0. 8kg (including battery) |
power supply | 3 x IEC-R14 or 3 x rechargeable Varta NiCd #5014 batteries |
battery life | UseR14 >150 hours |
LB6411 Neutron Detector | |
Measured quantity | Neutron surrounding dose equivalentH*(10) |
Measuring range | 30 nSv/h ~ 100 mSv/h |
Neutron energy range | Thermal neutrons ~ 20 MeV |
scale source | Cf-252 naked neutron source |
fluence response | 1.09 cm2 |
scale factor | 1.27 μSv/h / cps |
response function | The fluence and energy response functions can be found in the manual. |
Energy dependence | ±30% between 50 keV ~ 10 MeV |
gamma sensitivity | reading less than40 μSv/h（10mSv/h Cs-137） |
temperature range | -10℃~ 50℃ |
Moderating ball diameter | 625px |
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