Berthold
LB 6500-H10

Radiation Monitoring Probe

Download Datasheet

The LB 6500-H10 is a Geiger-Mueller Dose Rate Probe used in radiation protection applications, dose rate for environmental gamma monitoring or for local measurements. The measured quantities are ambient dose equivalent H*(10) and ambient dose rate equivalent Ḣ*(10).

The dose rate probe exists in 2 versions:

  • LB 6500-4-H10 Low dose rate ≤ 10 mSv/h
  • LB 6500-3-H10 High dose rate ≤ 1 Sv/h

Description

Berthold  LB 6500-H10 is a dose rate probe in a stainless steel cylindrical shape, which also serves as a handle. The unit is integrated with Geiger-Mueller counter tube, amplifier–pulse shaper stage and high voltage module, used in various radiation protection applications, for environmental gamma-monitoring, and for local dose rate measurements. The measured radiation quantity is ambient dose equivalent H*(10) and ambient dose rate equivalent Ḣ*(10).

The measuring results of the Berthold LB 6500-H10 are displayed on the easy to operate  universal monitor Berhold LB 134 (UMo II) which comes with a data storage system and USB interface. The probe can be used also in combination with the stationary data logger Berthold LB 115, which is a modern and versatile unit with colour display that shows current numerical and graphical values of on-site measurements.

The highest sensitivity of the counter tube is perpendicular to the longitudinal axis. The centre of the active area is marked by a blue ring on the probe case. Due to this quench, the counter tube should always be held vertical or transverse to the radiation incident direction.

The Berthold  LB 6500-H10 dose rate probe exists in 2 versions:

  • LB 6500-3-H10 High dose rate ≤ 1 Sv/h
  • LB 6500-4-H10 Low dose rate ≤ 10 mSv/h

For more details, please refer to datasheet.

Features:

  • Ambient Equivalent Energy compensated GM counter tube.

  • High voltage for the GM counter tube (high voltage setting internally)

  • Amplifier discriminator circuit

Specifications

LB 6500-3-H10
Dose Rate Range1 µSv/h – 1 Sv/h (type approved: 10 µSv/h – 1 Sv/h)
Energy RangePTB type tested: 50 keV – 1,3 MeV ± 40% with regard to Cs-137 and 0° (angular response ± 45°)
Life cycle5 x 1E10 counts
Intrinsic backgroundapprox. 0,014 cps
Calibration Factor7,05 µSv/h per cps
LB 6500-4-H10
Dose Rate Range100 nSv/h – 10 mSv/h (type approved: 500 nSv/h – 3 mSv/h)
Energy RangePTB type tested: 65 keV – 1,3 MeV ± 40% with regard to Cs-137 and 0° (angular response ± 45°)
Life cycle5 x 1E10 counts
Intrinsic backgroundapprox. 0,08 cps
Calibration Factor0,617 µSv/h per cps
Operation Conditions (Both)
Ambient temperatureAmbient temperature: - 20°C to + 40°C
Rel. HumidityRel. Humidity: 30 % to 90 %
Protection DegreeIP65
Storage temperaturemax. 60°C
Dimensions / Weight (Both)
Outer diameter45 mm
Length315 mm
Weightapprox. 1000g