The ion RF cavity has soon accelerated its last ion. Starting with the next ion run, we will use a drift tube instead. Yesterday we made some preliminary tests using the Schottky tube, and were able to accelerate NO+. This is a much simpler system, so many of the supplies etc. we use now will become obsolete.
The connection to Faraday cup 1 is broken. It will have to be fixed before we change to negative ions in two weeks.
The new door leading to the new hall will be cut in week 30, when this ion run has finished. At
the same time, two holes will be drilled: one for the extracted beam and one for the injected
beam from the new injector room.
In addition, a corner of the 5MeV shielding will be cut off, allowing much better access at corner
4. This can be done without affecting the radiation shielding.
The new current transformer shows a much improved resolution when tested in the lab, but when mounted on the ring, there are noise problems, FA reports.
The EBIS source is currently being lined up. There are still some problems, which may be internal. The matter is being investigated in detail before deciding to open the EBIS again.
Mikael Eriksson from Lund will visit us Thursday next week (June 26) to tell about MAX II
and discuss ASTRID II.
The talk about MAX II will take place in 525-323 at 11:15 on June 26.
Safety: When aligning lasers in the ring hall, or whenever laserbeams are not shielded, signs must be put up on all entrances to the hall. Furthermore, people working in the hall must be warned before starting the alignment.
We have bought a digital camera, intended primarily for documenting experimental equipment, important events etc. Some of the pictures already taken can be seen on the web at http://isals.dfi.aau.dk/Billeder . Contact TW if you want to borrow the camera.
17/6 1997 NH+SPM