ICDD Technical Committee Minutes

Electron Diffraction Subcommittee
March 15, 2001
ICDD Headquarters
Chairman - Alwyn Eades

1. Call to Order
The Meeting was called to order by Alwyn Eades with 25 people in attendance.

2. Minutes
The minutes of the meeting in March 2000 were approved. There was also an informal report on the meeting that took place at the Microscopy and Microanalysis 2000 meeting in Philadelphia, with six people in attendance. Alwyn Eades asked how many people at this meeting actually did electron diffraction, and four responded affirmatively. Alwyn Eades was concerned about the low turnout, and there was a discussion about the level of attendance and activity and a focus on the future.

3. Mission Statement
Alwyn Eades distributed copies of the existing mission statement and a proposed new one. Changes were suggested, and the following statement emerged.

Electron Diffraction Subcommittee Mission Statement
The Electron Diffraction Subcommittee serves as a bridge between the electron-diffraction community and the other parts of ICDD. It will communicate the needs of electron diffractionists to ICDD, so that ICDD may more effectively respond to those needs. It will assist in communicating to the electron-diffraction community the way in which ICDD will serve them. To these ends, it will cooperate with other ICDD subcommittees and with the central organization of ICDD. Specifically, the Subcommittee shall monitor the status of and suggest improvements to the databases and related products used in electron diffraction (those produced by other organizations, as well as those produced by ICDD).

There was a motion to approve the revised statement as reproduced above, and it carried unanimously.

4. Proposed Joint Meeting of MAS with the Denver X-ray Conference
Alwyn Eades introduced Charles Lyman, who reported the results of a meeting held that morning. The meeting was attended by Charles Lyman, John Friel, Camden Hubbard, George Havrilla, Terry Maguire, and the ICDD meetings staff. Charles reviewed previous attempts to hold joint meetings and the scheduling problems that occurred. The participants at the earlier meeting decided to try to schedule a "Special Symposium" (the name has not been established) to be held at the 2003 Denver Conference. That year the M&M conference is the prior week in San Antonio. The symposium would be co-sponsored by MAS and ICDD and would address three topics. These are: X-ray detectors, EBSD (electron backscatter diffraction), and X-ray spectrometry. Charles and John will return to ICDD in two weeks for the organizing committee meeting for the '01 and '02 Denver meetings, and they will begin to work out the details of such a meeting. Charles emphasized that this would be a unique meeting, but if successful, it could be repeated at some interval. It should expose members of each group to the activities of the other, thus should be beneficial to both groups.

5. Relational Database
John Faber gave a presentation on the progress of the relational database. He said that it is divided into the database itself and the front end. Data from the PDF2 is incorporated into the RDB rather than in flat files. John gave a demonstration of the software using the minerals dataset, and he said that the metals and alloys set is now available. He also mentioned that neutron or electron cross-sections could be entered.

6. Next Subcommittee meeting
The next meeting of the Electron Diffraction Subcommittee will be held at the Denver X-ray Conference. There was a motion for the Subcommittee to recommend to the Technical Committee that the sum of $1000 be provided for the meeting. The motion passed unanimously.

7. Priorities
Alwyn Eades asked for suggestions from the floor regarding priorities and activities for the Subcommittee. Jim Kakuk asked if there is an electron-diffraction-specific product desired by the Subcommittee. Alwyn Eades said that he would like to use the PDF with modifications for electron diffraction. Others agreed. Ray Goehner asked for the software to simulate spot and ring patterns. Others agreed.

8. Adjournment
The meeting adjourned at 1100.

Respectfully submitted,
John Friel