YALE ELECTRON MICROPROBE LABORATORY, KGL 327
Kline Geology Laboratory Room 327, P.O. Box 208109, New Haven, CT
06520-8109 203-432-3181
We invite your interest in our facility described below. For more information, please contact Jim Eckert using the information at the bottom of this page.
This JEOL JXA-8530F "Hyperprobe", installed in 2009, includes five wavelength-dispersive spectrometers (WDS), an energy-dispersive spectrometer (EDS) and Windows-XP-based processing software. Hardware and software allow automated operation and data collection; this includes image processing and feature analysis. Jim Eckert is available to answer questions and assist users with all forms of analysis.
Available analyzing crystals on the five spectrometer channels are:
| CHANNEL | CRYSTAL | Analyzable Range of Z (@15 kV) |
| 1 (Gas-flow, P-10) | LDE1 | 6-10 (Ka), 20-29 (La) |
| TAP | 8-15 (Ka), 24-41 (La), 57-80 (Ma) | |
| 2 (Gas-flow, P-10) | LDE2 | 5-8 (Ka), 20-29 (La) | TAP | 8-15 (Ka), 24-41 (La), 57-80 (Ma) |
| 3 (Sealed, Xenon) | PETJ | 13-26 (Ka), 36-66 (La), 71-92 (Ma) |
| LIF | 19-38 (Ka), 48-93 (La) | |
| 4 (Sealed, Xenon) | PETJ | 13-26 (Ka), 36-66 (La), 71-92 (Ma) |
| LIF | 19-38 (Ka), 48-93 (La) | |
| 5 (Sealed, Xenon) | PETL | 13-26 (Ka), 36-66 (La), 71-92 (Ma) |
Accelerating voltage may be varied from 0.5 to 30 kV and probe (beam) currents maybe be varied from picoamps (esp. for high-resolution imaging) to microamps (esp. to detect low-concentration elements). The most typical operating conditions are 15 kV, 10 - 20 nanoamps, though these currents may be revised downward with additional experience with this new instrument.
email: Jim Eckert