Bipolar ion production with various ionisation sources ensuring a well-define charging state of the aerosol. The GRIMM Aerosol Neutralisers include the following:
5522-A – Americium-241 Aerosol Neutraliser
This aerosol neutraliser works based on the radioactive decay of 241Am (nominal activity 3.7 MBq). It is optimised for direct connection to GRIMM DMAs and compatible with GRIMM SMPS+C and SMPS+E systems.
5523 – Nickel-63 Aerosol Neutraliser
This aerosol neutraliser works based on the radioactive decay of 63Ni and is compatible with GRIMM SMPS+C and SMPS+E systems. It provides all benefits of radioactive source based neutralisers, however does not require a special handling licence.
5520 – ADBD Aerosol Neutraliser
The alternative to established systems: it does not require the use of radioactive radiation and can therefore be operated without a special handling licence.
5524-X – Soft X-Ray Aerosol Neutraliser
This aerosol neutraliser works with soft X-Ray radiation instead of radioactivity. It is therefore not subject to transport or storage regulations and no special handling licence is necessary.