In the absence of YB, MK leads the meeting.

1. News from the technical group:

· There was a valve stuck at the target that had to be closed manually.

· Some heating issues at the target level (target and line heating dropping to 0A) were identified and are under investigation.

· There were more problems with the target cooling water flow: it was too high at GPS (where it was too low last week) while it was too low at HRS over the week-end (and had to be adjusted regularly to prevent the interlock on the target heating from stopping the target heating abruptly). The CERN team on cooling water is looking into the issue.

· On Sunday morning, the beam was lost and the ISOLDE control would not respond: total freeze. EP came in to reboot the system and the beam was recovered.

· REMINDER: the wire-scanner GPS.482 does not work; GPS.483 might jump around but if you look at the FC downstream, the beam is fine. This is only an artifact and should not worry the users (the exact reason has not been identified yet, in spite of a thorough investigation). Make sure to enter a note in the GPS logbook when such behavior is observed. Note that the scheduled diagnostic upgrade/maintenance during shutdown only concerns the Faraday cups and NOT the wire-scanners (i.e. the issue might remain a while longer).

· The ISCOOL only had 60% transmission over the week-end. It is probably due to the spare RF amplifier. PF returns to CERN on Monday and will look at the broken ISCOOL RF amplifier.

· The valve before the CRIS beam line is still interlocked, though the conditions are met and the hardware is correctly wired. Issue still under investigation.

· RILIS on Be. Low on manpower (new people, conferences).

· A peek into the preliminary planning for 2011: LHC will start early but not the injector chain => ISOLDE will receive her first protons on week 18. Stop time is under negotiations (possibly mid-December).

· GPS front end replacement might be delayed to 2012.

· Current guidelines to the PSB are that any available proton pulse should be sent to ISOLDE up to the limit of 2uA. Nominal current in standard super cycle is only 1.5 uA. In case an experiment requires a very specific super cycle (pulse positions, regularity), the spokesperson should inform the ISOLDE Coordinator (MK) a week in advance to make sure that the information is added to the PSB guidelines for that week.

2. News from the experiments:

· ISOLTRAP took beam from HRS over the week-end. Ta target. Aiming at neutron-rich Rare Earth elements. The yields of the species of interest were much lower than assumed in the proposal: ISOLTRAP with look with the target group what are the other options for these beams. The physics program could not be carried out and alternatives were investigated. Neutron-deficient Rare Earth isotopes were investigated instead, providing new masses and, hopefully, resolving a 20-year-old question on isomerism in ¹³⁷Sm. Good communication with the PSB permitted very smooth operation. =]

· GPS& RILIS are currently delivering ¹¹Be beams to T-REX. The yields are much better than expected and the scientific output of this program looks promising. The yields are also sufficient to allow for angular correlation in the g emission. There were a few interruptions (amplifier problem solved by replacing a tube, ventilation difficulties).

· Coming up: Be test at COLLAPS (during the week-end – day time), ¹⁶³Ho at ISOLTRAP (night time), ¹⁶²Ho collections, and many other collections (including some by Ulli Koester).

· Monday: Target change at GPS to molten Pb + plasma source for biophysics work with Hg.

· ⁴⁴Ar at T-REX next week from HRS.

3. A.O.B:

· New student in biophysics: Sabrina Kargoll (26/1-023).

· Three 2011 INTC meetings are maintained. The possibility to submit proposals is still under question. The community expresses its will to propose new experiments, at least at the February meeting.

· A pump was borrowed by external users but not returned at the proper place. This raises the issue of responsibility when borrowing equipment. Everyone understands that science is important and might not wait for paperwork to be processed, but always make sure to inform the owner of the equipment, to be responsible in the use of that equipment, and to return it where you found it.

· New electronic modules have been acquired: 3x ORTEC 471 pre-amplifiers for b scintillator detectors in order to slow the signal and be able to process them via the standard ISOLDE acquisition logic. 2x DGF XIA modules have been ordered (+1x controller unit), same version as the MiniBall ones (to be useable as spares there too). Many modules have been kindly donated by Strasbourg: they are labeled ‘ISOLDE-FRANCE’ and join the rest of the ISOLDE electronic pool. Please, be sure to use those modules only for short term needs and return them where you found them. A list of those equipments will soon be available at the ISOLDE electronic pool to allow people to sign them out when they use it. Alternative ways to track the modules are under investigation by MK.

· The ISOLDE Workshop & Users’ Meeting is coming in November. Make sure to submit your abstracts by October 10^th.

· MK is the new safety officer at ISOLDE and swears to preach by example. She asks for people to inform her, should situations that do not comply with safety regulations be identified. She also reminds the ISOLDE users that, though the new Radiation Warning signs on the doors do not mention it explicitly, it is strictly forbidden to eat/drink/smoke in the ISOLDE hall.

· The ISOLDE Separator Courses 2010 are scheduled for week 48. Two two-day courses will be offered by the ISOLDE Operation Team, with priority to new students/researchers who are going to come for experiments in 2011. An e-mail will be distributed next week. Some users have expressed the interest in Refresher Courses / Improvement Modules. MK will look into the possibility of using the time when CA0 is free for such purpose.

· A new bike rack is available in front of ISOLDE. Do not hesitate to use it!

· The Polish school to which the extra EURORIB bags were donated offered its thanks to ISOLDE.

· ISOLDE 3D: there will soon be a model of ISOLDE available in 3D. If you have technical drawings of beam lines, provide them to MK to make sure that they can be included in the final version.

· Car park at the back of ISOLDE: this is NOT an ISOLDE parking, therefore there are no regulations that prevent people to park there. However, since this parking is of practical use to unload equipment for the laboratories behind the main experimental hall, people who are staying for extended periods (several hours) at ISOLDE are kindly asked to park at the front of the hall.

4. Seminars

· Summer Student Friedrich Romstedt from the Solid State group about a CCD Driver and Simulation.

· Summer Student Ohad Levinkron from the CRIS group about the CRIS Beam Optics.

Minutes by TEC