ISA meeting

Week 7, February 13, 2001.

Status of the ring: The ring is still running very well, the stored current after injection has been ~200 mA for the past three days, this morning we reached 204 mA! During the past week we have experienced a two partial beam losses, which apparently occurred in connection with undulator gap movement. Last week, we changed the beam chromaticity, and this can have made the beam more sensitive, although the purpose of the modification was the opposite. If the problems persists, we will probably undo the modification.
Tune tracking is now active all the time, and works very well.
Starting next week, we will only make one injection/day, at 08:30. The main reason is that we want to start running the EBIS ion source, and use the bending magnet and Faraday cups in the injection beamline. The lifetime is now about 22 h at 200 mA, so a single daily injection is acceptable to most users. Besides, some users report that beam stability is better at lower currents. If your experiment requires higher current during the night a second injection can be made, just let us know.

SGM I and the SX700 are busy, and everything is running well, ZL reports.

The SGM II has a problem with the stability of the floor. As you know, the floor is divided into separate sections, and the place where the SGM II is located is very sensitive to load changes. Just a person walking by will cause the floor to move with a resulting change in intensity at monochromator exit. As a temporary measure, a stack of lead bricks has been placed on the floor to keep it pressed down, but the effect can still be seen. A more permanent solution must be found, but until then, the affected part of the hall will probably be blocked to keep people out of the area while SGM II measurements are running.

The EU application for Transnational Access to Research Infrastructures was sent off last Friday.

Computer security: A virus which is distributed by email is loose on the net! It is disguised as an attachment which, needless to say, you must not open. The attachment has the extension VBS. You can update your Outlook such that executable attachments are not downloaded. TW recommends the following actions to be taken:

In order to ensure the security on your PC, remember to visit http://windowsupdate.microsoft.com/ regularly for updates. It is recommended to install all security updates, including the ones that block Outlook from receiving ".EXE" and ".VBS" files.
If you receive a mail with executable code that you want to run after installation of the security options, you can download through http://webmail.ifa.au.dk/
(This must be done before the mail is deleted from the ifa server, I recommend that you set Outlook or whatever program you are using so that it leaves mail on the server for some days. Do not leave mail on the server to for to long a period - the network traffic with a long list of mails on the server can be big)
Recommended settings in Outlook:
From the menu:
Tools -> Accounts -> Properties -> Advanced :
Check: Leave a copy of mails on server
Set: Remove from server after __ 5 __ days

13/2 2001 /