MODEL 5522-A

AMERICIUM-241 NEUTRALIZER

Bipolar neutralizer for α radiation - 3.7 MBq

The GRIMM 5522-A aerosol neutralizer is based on the radioactive decay of Am-241 (nominal activity 3.7 MBq), that produces a bipolar ionic atmosphere by α radiation. Irregularly charged particles (from ambient or lab generated) are brought into a defined stationary-state charge distribution, regardless of their initial charging state. Aerosol neutralizers based on radioactive sources are nearly maintenance free and well proven.

Overview

  • Am-241 α radioactive source
  • nominal activity 3.7 MBq
  • aerosol flow rate up to 5 L/min
  • low maintenance
  • easy to operate and safe
  • compatible with GRIMM SMPS+C and SMPS+E systems

Applications

  • neutralizer for aerosol sizing with SMPS systems
  • neutralizer for particle generators
  • fundamental aerosol research
  • investigation of particle charging

TECHNICAL DATA

source type

Am-241
sealed radioactive source; covered with gold layer

ion generation method

alpha (α) radiation, maximum energy 5.6 MeV

nominal activity

3.7 MBq

half-live

433 y

 

aerosol flow rate

up to 5 L/min

aerosol medium

Air or N2

housing

stainless steel

dimensions (h x w x d)

4 x 5.5 x 5 cm (1.6 x 2.2 x 2 inch)

weight

0.55 kg (1.2 lbs)

 

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