2006–2007 var detta en teknisk blogg, bl.a. om en vacuumkammare. 2008–2013 var temat idépolitik, främst ekonomisk demokrati. 2017–2018 var det en dagbok från Uppsalas plan- och byggnadsnämnd. Nu: Basemba – riffrock med ruff.
2006-10-05
Discussion for Thursday the 9th with Allectra
I will go to Parma tomorrow (Wednesday) to see the chamber, and meet with Mario Peli, the Allectra engineer. And eat some prosciutto. :)
We intend to use the chamber in November for test purposes. The particle injection system will be mounted from the left, a Nd:YAG laser comes from the front and a beam dump/ power meter will be mounted on the rear side.
Before, we discussed the option to have off-centre CF 360-35 nipple adapters.
The IAR, Interaction Region, is given by the distance to the 250 top flange (presently given by the Berlin chamber).
However, it is much more convenient to have the interaction region at the centre. That would require a CF 360-250 well adapter, with a depth of 156mm. The problem to solve is that there is space for nitrogen pipes (Swagelok connections on the top 250 flange, pointing to the right). The special geometry of this well adapter is the first topic to discuss in Parma.
List of topics:
1) Well adapter (see above).
2) Geometry of the viewports, so that they do not collide with the 360 flanges.
3) 360-35 nipple adapters.
4) Support for the breadboard in the chamber (previously misleadingly denoted rails).
5) Date for chamber delivery to Flash.
6) Lugs, the interface chamber-stand.