Pixe International Corporation
pronounced (pixee)
PIXE Cascade Impactors


Figure 1: Model I-1 Cascade impactor
(Shown with optional base B-1)
Seven stages ranging from 16 to 0.25 micrometer aerodynamic cut-off diameter plus afterfilter.

Length: 24 cm (9.5 inches)
Diameter: 7.6 cm (3 inches)
Weight: .92 kg (2.02 lbs)
Pumping: 483 mm (19 inches) Hg vacuum at one liter/minute


Figure 2: Model I-1L Cascade impactor
(Shown with optional base B-1)
Nine stages ranging from 16 to 0.06 micrometer aerodynamic cut-off diameter plus afterfilter.

Length: 28 cm (11 inches)
Diameter: 7.6 cm (3 inches)
Weight: 1.08 kg (2.4 lbs)
Pumping: 648 mm (25.5 inches) Hg vacuum at one liter/minute



Impactors are shown with bases (B-1). Impactors are molded of electrically conductive high-quality plastic.

The PIXE cascade impactor is an air particulate sampler that uses inertial impaction to collect aerodynamically fractionated particulate samples. The particulate matter can be separated in up to ten diameter ranges: >16, 16-8, 8-4, 4-2, 2-1, 1.0-0.5, 0.5-0.25, 0.25-0.12, 0.12-0.06, and <0.06 Ám. These ten intervals provide adequate resolution to characterize aerosols in a region of great environmental interest.

PIXE impactors are molded of electrically-conductive high-quality plastic with o-ring seals, and are designed for modest pumping requirements of 1.0 liter/minute. Samples are impacted onto coated Kapton or Nuclepore (PCTE) backings and are suitable for analysis using ion-beam techniques such as PIXE (Proton-Induced X-ray Emission) and PESA (Proton Elastic-Scattering Analysis) or SEM (Scanning Electron Microscope) plus x-ray spectroscopy. Such analyses are available both commercially and through university and government research laboratories worldwide.

Impactor Operation Requirements

Download the Impactor Instruction Sheet in PDF format
        (requires Adobe Acrobat reader - download here)

Accessories are also available.

Vacuum Pumps

PIXE Analysis

Click here for Impactor References

Click images to enlarge
Impactor I1
Figure 1. (I-1)

Impactor I1-L
Figure 2. (I-1L)

Impactor I1-L
Cutaway View


PIXE International Corp.
P.O. Box 2744
Tallahassee, FL 32316 USA
Voicemail/Fax: 404-551-5458
email: info@pixeintl.com

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