Technical Director(s): 
Douglas Kennett, Department Head and Professor of Anthropology
Kate Freeman, Evan Pugh Professor of Geosciences
Address: 
Land and Water Research Building, 100 Hastings Rd. University Park, PA 16802

Description: The Penn State AMS 14C facility is dedicated to providing radiocarbon measurements on carbon-bearing materials spanning the last 45,000 years. The facility operates a National Electrostatics Corporation 500kV 1.5SDH-1 Compact Accelerator Mass Spectrometer optimized with a second einzel lens and solid ion source typically generating 12C beam currents in the range of 120-150 µA. The AMS facility at Penn State is supported by a sample preparation laboratory capable of processing a variety of materials including wood, charcoal, pollen, marine and terrestrial shell, speleothems, hair, teeth, and bone collagen both by ultrafiltration and amino acid hydrolysis (XAD). Samples are pretreated and converted to graphite routinely running samples of ~0.7 mg of carbon, which allows for direct 14C measurement on small samples such as individual seeds, incremental growth in wood and shell, and poorly preserved bone collagen. Typical precision is better than 30/00 for Holocene-age samples. Our research emphasizes human-earth interactions with a special focus on integrating human and environmental histories through the development of high-resolution chronologies. Our aim is to foster the development of interdisciplinary archaeological research and greater articulation with the earth and environmental sciences.  

AMS Facility Rates Per Sample:

Sample Type

Internal Rate ($)

External Academic Rate ($)

External Non-Academic Rate ($)

Required Sample Treatment *

Graphite

85.21

134.88

139.14

No treatment

Carbon Dioxide

138.97

219.99

226.93

No treatment

Carbonate Minerals

179.29

283.81

292.78

1, 7

Carbon (ready for combustion)

179.29

283.81

292.78

6, 7

Organic Carbon (requires pre-processing)

219.61

347.64

358.62

2, 6, 7

Bone for Ultrafiltration (incl. EA-IRMS)

421.21

666.77

687.83

2, 3, 4, 6, 7

Bone for Amino Acid Hydrolysis (incl. EA-IRMS)

501.85

794.42

819.52

2, 3, 5, 6, 7

* Required Sample Treatment: (1) Cleaning and hydrolysis; (2) Cleaning and ABA demineralization;

(3) Gelatinization (4) Ultrafiltration; (5) XAD purification; (6) Combustion; (7) Conversion to graphite.

NOTE: Rates per sample listed above include all required sample treatment

 

 

 

Instruments in this Facility