3B Scientific

Lab Supplies, Geiger Counter

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3B Scientific #1002722 Specifications

  • Country of Origin (subject to change): Unknown


Versatile, easy to use and compact precision instrument for measuring α-, β- and γ-radiation. With filter selection switch at the front of the Geiger-Müller counter tube for filtering out types of radiation (γ/β, γ/α/β or γ only), large display and integrated USB interface. Including USB cable, Windows software, and operating instructions. The following functions and operating modes are available for measurement: Standard mode for displaying the current radiation level. Display of the equivalent dose as a numerical value and as a bar chart and display of the time until a selected cumulative dose limit is reached (default 5 μSv/h). Also equipped with variable acoustic and optical warning threshold signal and display of average radiation from previous day. Pulse counting either permanent or with variable gate time. Gate time adjustable in seconds, minute or hours. Additional optional acoustic count indication. Count rate measurement. The pulses registered are measured successively and converted into a count rate (number of pulses per second). Integrated display of date and time for correct recording of measured radiation. The number of pulses registered is stored in the internal memory. This facilitates recording e.g. of weekly values for up to 10 years. Computer docking station. The software enables the measured data to be evaluated and processed on an MS-Windows PC. Specifications: Radiation types: α from 4 MeV, β from 0.2 MeV, γ from 0.02 MeV Measured variables: equivalent dose in Sv/h, mSv/h, μSv/h, pulses/s, pulses/variable time interval Display: LCD, 4 digit, numerical with display of measured variable, quasi analogue bar chart, operating mode indicators Radiation detector: End window Geiger-Müller counter tube, stainless steel housing with neon-halogen filling Measuring length: 38.1 mm Measuring diameter: 9.1 mm Mica window: 1.5 – 2 mg/cm2 Gamma sensitivity: 114 pulses/min for 60Co radiation = 1 μSv/h in background radiation energy band Background rate: 10 pulses per minute approx. Internal memory: 2 kilobytes Battery life: 3 years approx. Dimensions: 163x72x30 mm3 approx. Weight: 155 g approx.

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