1. Magdalena Kowalska, CERN PH-SME-IS
ISOLDE scientific coordinator’s report
ISCC meeting, February 2, 2011
Running statistics 2010
Status of experiments and ISOLDE hall
Safety files on fixed installations
News on ISOLDE web page
Magdalena Kowalska, CERN PH-SME-IS

2. ISOLDE running period 2010 Requested shifts: 667 in total
~29 weeks for physics
vs 31 weeks in 2009
Requested shifts:
667 in total
627.5 for 50 experiments
GPS
HRS
Scheduled shifts (~73%):
480 in total
443 for 41 experiments
REX-ISOLDE:
332 shifts requested
160 shifts scheduled (~37%)

3. ISOLDE running period 2010
ISOLDE delivered 350 RIB shifts (like in 2009)
265 (76%) for INTC experiments (vs 82% in 2009)
85 (24%) other (vs 18% in 2009)
Standard target check + TISD + REX-MD
Coordinators reserve: debugging, recovery, tests, LOIs
41 research projects (IS experiments) – 7 with no beam (vs 6 in 2009)
4 LOIs
Integrated # protons
7.7e19 (vs 6.7e19 in 2009)
Running for 203 days (vs 223 in 2009)
More protons on GPS (4.0e19), but equal number of shifts (ca. 175)
56% of possible
RIB shifts used
(1.69 shifts/day)
(55% in 2006
61% in 2007
56% in 2008
52% in 2009)

4. Shift distribution
Remaining shifts:

5. Shift distribution

6. Shift distribution

7. Resources: targets 2010 Actinide targets 244 shifts (out of 350) [72%]
12 new units + 2 old (one not used)
In total 25 targets
21 new units
1 not used

8. Resources: RILIS 2010 158.5 total RIB shifts (155.5 in 2009)
151 shifts for INTC experiments
~2000 hours for online work
includes setup, yield checks, etc.
>2100 hours total running time (incl. off-line tests)
20 IS experiments (20 in 2009)
Beams: Mg, Cu, Ga, Tl, Be, Pb, Mn, Au, Be, Zn, Ag, At (all with Nd:YAG pump lasers and new dye lasers)

9. Resources: RILIS 2010

10. Resources: REX 2010
100 shifts

11. Latest Accelerator schedule 2011
ISOLDE dates (as in Nov.)
protons to ISOLDE April 25
physics start ISOLDE May 2
protons stop November 20
(i.e. 29 weeks for physics vs 29.5 in 2010)
Protons:
December Research Board approves 34% proton pulses for ISOLDE
nTOF starts in March: ISOLDE can get 1 proton pulse more during nights
=> ISOLDE is guaranteed 34-37% proton pulses (ca.1.5uA)

12. Beta-NMR
System for manipulating foils and connected parts machined in Rehovot (Ch. Sotty went there last week to see what needs changing); will be sent to CERN next week
Tests of scintillator efficiency planned for next week (when G. Georgiev comes to CERN)
Machining of remaining parts and installation of chamber: spring 2011
Running period 2011: system should be ready for 1st online tests
PhD students are presently analysing Miniball data from 2010

13. WITCH
Additional shielding for REX mass separator installed and tested in December:
magnet at nominal field: losses when scaling masses
Magnet at ca 50% of the field: full mass scaling possible after re-steering the beam
Difficult access to REX diagnostics
=> REX operation and scaling possible after finding new settings for each mass range; details to be discussed with Fredrik and Didier
Physics run on 35Ar scheduled for week 46 had to be cancelled: WITCH trap damage due to over-baking

14. ISOLTRAP decay-spectroscopy station
commissioning beamtime in Sep 2009
first real online run in Nov 2010, assisting mass measurements: determination of excitation energy and assignment of state to 194Tl isomer

15. Cleanup Offline lab (bldg 275) cleanup: December
ISOLDE extension cleanup: next week

16. Safety files for fixed installations
Required by the HSE unit for all CERN experiments;
PH-DSO Christopher Griggs as our contact:
WITCH and CRIS as test cases; files being finalised
Files in preparation by local responsibles until end of February
Feedback and checks of conformity (CE) during the year
Necessary changes implemented this year
Full safety file (most probably) ready for 2012 running period
Visiting installations: presently “safety table” in INTC proposals; a reduced safety file template in preparation
PH-DSO is very happy about our progress:
“ISOLDE leads the way is matters of safety at CERN”

17. News on the ISOLDE web page

18. News on the ISOLDE web page
List of ISOLDE publications 2009-now:
Science&Events -> Publications -> ISOLDE Publications -> Publications
Found:
73 publications
12 Phys. Rev. Lett.