Application of PIXE to mineral analysis

Satoshi Murao

2006 CASM Asia-Pacific Bandung meeting

Light Minerals

Iron minerals where the Fe K lines dominate

Heavy minerals where K lines of element other than Fe dominate

Heavy minerals where L lines of the major elements are dominant

Conclusion• PIXE has proven to be a powerful tool for

delineation of trace element distribution at levels relevant to environmental study.

• Judicious selection of filters is essential in order to obtain the maximum benefit from the method.

• The MDL is good spanning the range 1 – 100 ppm either not accessible or tedious to obtain by the electron microprobe.

1

10

100

1000

10000

100000

1000000

20 60 100 140 180 220 260 300 340 380 420 460 500

Channel Number

Cou

nts/

Cha

nn Fe-Kα

esc

apT

i-Kα

Ti-K

β

Fe-Kβ

esca

p

Mn-

K α

Cr-

K α

Cr-

K β

Fe-Kα

Fe-

K βSi-K

Al-

K

S-K α

Cl-K

α

Ga-

K α

Ca-

K α

K-Kα

K-Kβ

Ca-

K β

Zn-

K α

Ni-Kβ

Ni-K

α

Cu-

K α

Cu-

K β

Pb-

L α

Zn-

K β

Particle Induced X-ray Emission Analysis

NMCC

Environmental incident form

Environmental

Interview form

Request for analysis

CCOP Member Countries

Reviewing incidents/Sample preparation/sample description/data handling

Report to each community

Request from each community

Labeling/packing

Delivery

Geological Survey of Japan, AIST

Analytical support for environmental issues in CCOP and other Region towards the realisation of Human Security

Announcement of the scheme

Call for application

Reporting back

Sample collection

Lecture on analysis

Analytical report Analytical

resultSamples