A small amount of material is encapsulated for irradiation. Both solids and liquids can be analyzed.

For archaeological ceramics, sherds are first "cleaned" by removing weathered and/or contaminated surfaces with a tungsten carbide bur. Samples are then rinsed, dried, and pulverized in an agate mortar and pestle.

1. Sample preparation:

Approximately 200-500 mg of dry, powdered sherd is utilized, although it is advisable to provide extra that can be archived. For lithics, ground or finely chipped material is utilized.

The powder is weighed out and encapsulated in vials of high-purity quartz tubing or hyper-pure polyethylene vials and submitted for irradiation.

For details on INAA services and sample preparation procedures, please email.

Oregon State University Archaeometry Lab