1. A. Herlert, CERN PH-SME-IS
ISOLDE scientific coordinator’s report
ISCC meeting, June 23, 2010
A. Herlert, CERN PH-SME-IS
Requests and schedule 2010
New Safety structure
Status of experiments
Status ISOLDE web page

2. New and active experiments at ISOLDE
INTC February 2010
5 new experiments: IS499 – IS503
132 approved RIB shifts (out of 183 requested)
8 experiments completed (3 REX experiments):
IS381, IS414, IS415, IS417, IS418, IS425, IS431, IS469
 69 active experiments for 2010 beam period

3. Injector schedule 2010 (V1.7) ISOLDE dates: protons from PSB May 3
physics start ISOLDE May 6
protons stop November 22
(i.e. ~29 weeks for physics
as compared to 31 weeks
in 2009)
Several long periods of MD
partly with parasitic beam to
ISOLDE (not guaranteed)
Technical stops keep
changing dates …

4. ISOLDE beam requests 2010 Beam requests:
627.5 RIB shifts requested by 50 experiments (19 with no request)
For comparison to 551 RIB shifts requested in 2008 and 627 in 2009
Requested RILIS shifts: 350  >50% (337 in 2008 and 359 in 2009)
Requested REX-ISOLDE RIB shifts: 333 (273 in 2009)
Additional ~40 shifts for TISD, LOIs + off-line MD …
Scheduled runs (present status):
469 RIB shifts in total (609 shifts for running period incl. PSB setup)
432 RIB shifts for 41 experiments
74 different beams
19 beams and 36 experiments not scheduled (27 of those with no request
and/or completed)
7 REX-ISOLDE runs for 11 experiments with ~160 RIB shifts (~37%) 4

5. ISOLDE schedule 2010 - overview
ISOLDE program 2010
(Version 1.2):
physics started May 6
protons stop Nov. 22
~29 weeks
for physics
So far scheduled:
41 IS experiments
3 TISD runs
6 LOIs
>460 RIB shifts
>70 different beams
GPS
HRS

6. ISOLDE schedule 2010 – REX-ISOLDE
25 active REX experiments
17 requested beam
11 scheduled
3+3 share target/setup
(but different beams)
7 runs
3 days for setup
+ LOI (TF polarization)
+ 2 WITCH on-line runs
Need REX-TRAP
Operation of WITCH still
not compatible with EBIS/
LINAC operation

7. ISOLDE schedule 2010 – Targets
28 target units planned
12 for HRS
16 for GPS
Some old or to be reused during period
10 new UCx units (1 HD)
TISD
3 dedicated runs:
- Molten metal target
plus VADIS
- low work-function
cavity + Sm RILIS
- High density UCx

8. ISOLDE schedule 2010 – RILIS
14 RILIS runs planned
No off-line run
1 target test (Sm)
dense schedule
At scheme to be tested
>210 RIB shifts planned
>2000h operation

9. First on-line runs in 2010
TISD: Sm RILIS target test (with low work-function cavity) at GPS:
No Sm beam observed – not successful
SSP collections with YO HP target (GPS):
Strong stable contamination present
Not much physics output
Good tests with promising yields of Fe and Cr beams
SiC target with Mg RILIS (GPS):
Despite some vacuum problems and contaminants good results for SSP
Successful run for COLLAPS experiment (n-def Mg isotopes)
ZrO target with RILIS for Cu (HRS):
Successful run for COLLAPS experiment (n-def Cu isotopes)
Good results for SSP despite RFQ problems
YO CP target for 1st REX-ISOLDE run (GPS):
9C yield dropped quickly after start - not successful – need target test
ZrO target with RILIS for Ga (HRS):
Target broken right before on-line run - cancelled

10. New procedure for proposals
Safety file for all experiments required
all new INTC proposals need to provide a ‘safety file’ with the submission of the proposal (or addendum)
Safety aspects will be discussed with CERN specialists before the INTC meeting
Approval from Research Board only with endorsed safety file
 More details soon …

11. Follow up: floor space for experimentsHV
PLAT-
FORM
ISOLTRAP
MISTRAL
COLLAPS
CRIS Em Ch
MINIBALL
NICOLE
ASPIC
TAgS
WITCH b

12. Status of experiments - MISTRAL
Clean-up ongoing
RFQ buncher and cooler of
MISTRAL removed (shipped
to University Mainz)
Removal of 22t magnet
- opening to hall extension
enlarged by 50cm
- magnet ready for transport
- Storage space not yet
confirmed
- expected removal July 2010
Oct 2009

13. Status of experiments - ASPIC
ISOLDE group owner of equipment
LOI endorsed at February 2010 INTC meeting
BMBF proposal not successful

14. Status of experiments - HV Platform
Nov 2009
HV platform removed
Collection point to be
refurbished (work
in progress)

15. Status ISOLDE web page
New web page presently located at:
All pages transferred - still corrections needed
Work and tests in progress
old web page ‘frozen’
only new web page will be updated
Will be moved to new location mid July 2010
Afterwards YOUR feedback is needed …