Manual

Featuring:

radiation monitoring

systems

A Mirion Technologies Division

PRELIMINARY

SB 40/150

Detectors

SB 40/150

Plastic Scintillators

The scintillation detectors SB 40 and SB 150 have

been developed for monitoring for beta activity accor-

ding to the KTA standards 1502 and 1503 in safety

related applications.

In the disc shaped scintillator ionizing radiation

generates light pulses, which are converted and

ampli ed into charge pulses by the photo multiplier.

The sensitivity to gamma radiation is low because of

the thin layer of scintillating material. An adjustable

pulse ampli er offers calibration of the sensitivity and

matching of the output pulses to the impedance of

the detector cable.

APPLICATIONS

• Monitoring of beta activities of noble gases and

airbone particles

FEATURES

● Wide measuring range

● Low gamma sensitivity

● Built-in pulse ampli er and buffer

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SB 40/150 Detectors SB 40/150 Plastic Scintillators The scintillation detectors SB 40 and SB 150 have been developed for monitoring for beta activity according to the KTA standards 1502 and 1503 in safety related applications. In the disc shaped scintillator ionizing radiation generates light pulses, which are converted and amplified into charge pulses by the photo multiplier. The sensitivity to gamma radiation is low because of the thin layer of scintillating material.
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SB 40/150 Detectors TECHNICAL DATA Properties SB 40 SG 150 with measuring vessel RSD 200, lead shielding RSA 310 (if applicable), Udiscr = -100 mV with measuring vessel RSD 275 and lead shielding RSA 482 RSA 482, Udiscr = -150 mV 3e4 Bq/m3 s-1 ±10% 4.4e4 Bq/m3 s-1 ±20% 5e3 … 5e9 Bq/m3 1e4 … 1e10 Bq/m3 0.4 s-1 8.5 s-1 /μGy/h, without shielding 4.4e3 Bq/m3 s-1 ±20% 8.1e3 Bq/m3 s-1 ±20% 2e3 … 5e8 Bq/m3 3.37e3 … 1e9 Bq/m3 2.5 s-1 0.2 s-1 /μGy/h, with 5 cm lead 0 ... -5V at 50 Ohms 0.7 μs approx.