In the absence of AH, MK will take over the tasks of ISOLDE Coordinator.
- News from the technical group and experiments:
- GPS:
- After the GLM-deflector problem was solved, proton scan was attempted on Friday but had to be delayed until Monday morning. The calibration of the deflector is still problematic and another intervention on it is necessary. The drawings available did not match the equipment and improvisation was required on the spot.
- Physics at GLM started on Monday afternoon and lasted until Tuesday morning.
- Samples of Hg have been made for later study with the Au daughter nuclei. Measurement scheduled for October.
- Study of SiO nanotubes with radio-isotopes inside under different biological conditions for the possible applications in selective radiotherapy.
- The performance of the molten-Pb target with the VADIS ion source was very good.
- Problems during the target switch to UCx for NICOLE: the Robot is stuck due to a door interlock malfunction. RC and his team are investigating but the radiation levels are pretty high (300 mSv/h) for a long intervention.
- NICOLE hurried their preparation and will be ready to take beam from Thursday on or from when the target is available.
- NICOLE run will end on Monday to allow for target cooling and change for ISOLTRAP.
- HRS:
- Difficulties with 96Kr. Though some yields are observed out of the ion source, no direct observation was made at MiniBall. 94Kr worked. MiniBallare looking into the data and preparing a report on that situation.
- Yield measurements on 202,224Rn revealed yields only half of the tabulated values in the database, in spite of the expected improvements from the VADIS ion source.
- Coulomb excitation of 202Rn successful at MiniBall: higher excitations than expected were observed, in spite of a little low yield.
- Target failure on Saturday night (broken line providing current to the electron gun) cut the beam time short by one day and prevented beam delivery to IS475 (220Rn).
- Coming soon (2 days in advance of the schedule): neutron-deficient Pb, Rband island-of-inversion Na at REX-ISOLDE with MiniBall.
- Problem with ‘watchdog’, especially when HRS and GPS are running together. This has been identified as a baseline problem with STAG.ISO proton beam. The problem should be fixed by the next use of STAG.ISO (end of September).
- A.O.B:
- There have been changes in the LN2 delivery. No deliveries seem possible on Mondays and Fridays and that can cause problems to experiments. Coupled to the 2-day notice, it means that in order to have LN2 on a Monday, one has to order it the Tuesday before. This is due to recent changes in the company with which CERN deals: they no longer have a CERN-dedicated facility in Technopark St-Genisbut only a wide facility in Geneva for which the requests are centralized in Lausanne. In case of desperate emergencies, MK has the contact information of the delivery chauffeur and can deal with it. MK will also try to negotiate with the CERN contact to this company to see if Friday and/or Monday could be changed for other week-days. WITCH and ISOLTRAP (and other experiments with regular needs for LN2) are asked to be as predictable as MiniBallwhen it comes to LN2 ordering and to try, as much as possible, to hold a regular schedule (e.g. MiniBall buy on Tuesdays and Fridays).
- Seminars
- Yacine Kadi presented the HIE-ISOLDE project and, together with Seamus Hegarty from HR, the job prospects for Junior Scientists and Young Scientists within the CATHI network for Marie-Curie Fellowships. The CATHI network starts on November 1st 2010 with the first positions to be filled as early as January 1st 2011. Slides of the talk: http://indico.cern.ch/conferenceDisplay.py?confId=103245
Minutes by TEC