A. Herlert, CERN PH-SME-ISA. Herlert, CERN PH-SME-IS

ISOLDE scientific coordinator’s reportISOLDE scientific coordinator’s reportISCC meeting, November 16, 2009

Running period 2009Status of experimentsNew ISOLDE web page

ISCC November 16, 2009A. Herlert

ISOLDE experiments and requests 2009ISOLDE experiments and requests 2009

INTC February 2009• 10 new experiments: IS484 - IS493• 363 approved RIB shifts• 83 experiments after February meeting

Beam requests 2009• 11 completed experiments• 51 experiments out of 72 requested beam (627 shifts)• Requests for REX-ISOLDE 273 shifts

INTC May 2009• 1 new experiment: IS494• 21 approved RIB shifts

ISCC November 16, 2009A. Herlert

ISOLDE schedule 2009 (Apr 20 - Nov ISOLDE schedule 2009 (Apr 20 - Nov 23)23)

• 662 in total• 96 different beams• 627 for 51 experiments

Requested shifts:

• 463 in total• 62 different beams• 437 for 39 experiments

Scheduled shifts (~70%):

• 273 shifts requested• 140 shifts scheduled• 9 experiments (8 runs)• additional WITCH runs

(need REXTRAP)

REX-ISOLDE:

GPS HRS

ISCC November 16, 2009A. Herlert

GPS HRS

Wk 15: Startup problems - beam to users (COLLAPS) verymuch delayed (off-line tests possible)

Wk 17/18: Vacuum problems, targetperformance not ok, power cut,controls problems ... debugging run

Wk 19: Target change delayeddue to PISOMOVE problems,11Li yields not sufficient but detector tests possible (IS417)

Wk 22/23: REXLINAC 9-gap failureno beam for IS485

Wk 25/26: YO target not ready forIS478 (cancelled). RescheduledIS485 takes beam until severalpower cuts on June 18 eliminateISOLDE operation (vacuum etc.)

Wk 20: PSB injection septum brokenIS457 has to run with limited intensity

Main problems in 2009 (I)Main problems in 2009 (I)

ISCC November 16, 2009A. Herlert

GPS HRS

Wk 31: IS443 stopped due to HVtripping ... some data obtained

Wk 35: LINAC2 vacuum probem,IS480 stopped shortly after start ofrun - no data

Wk 44: HV problems, wrongly setextraction electrode and ripple onHV (missing ground) - no beamfor IS413

Wk 47: HRS front-end blocked, notarget change possible - IS433cannot take beam from HRS butfrom GPS as scheduled

Wk 42: REXEBIS cathode broken,IS430 resumes measurements aftervery fast repair

Main problems in 2009 (II)Main problems in 2009 (II)

ISCC November 16, 2009A. Herlert

Accelerator schedule 2010 (draft)Accelerator schedule 2010 (draft)

ISOLDE dates:

protons from PSB April 12physics start ISOLDE April 29protons stop November 22(i.e. 29.5 weeks for physicsas compared with 31 weeksin 2009)

Several long periods of MDpartly with parasitic beam toISOLDE (not guaranteed)

Longer shutdown perioddue to new HRS front-endand new vacuum system

ISCC November 16, 2009A. Herlert

Follow up: Reallocation of floor space for experiments 2008

ECR

CO

LLA

PS

COMPLIS

HV PLAT-FORM

ASPIC

WITCH

ISOLTRAPMISTRAL

TAgS

NICOLE

MIN

IBA

LL

?

ISCC November 16, 2009A. Herlert

Follow up: Reallocation of floor space for experiments - present

EC

CO

LLA

PS

CRIS

HV PLAT-FORM

ASPIC

WITCH

ISOLTRAPMISTRAL

TAgS

NICOLE

MIN

IBA

LL

ISCC November 16, 2009A. Herlert

Status of experiments - ECR

ECR removal and new GHM experimentAug 2009

ECR experiment before removal

ISCC November 16, 2009A. Herlert

Status of experiments - ECR removed

Parts to be shippedto Grenoble andGANIL

Aug 2009

Some equipmentbelongs to ISOLDEand can be usedby other users andexperiments

GHM collectionchamber removed,new chamber tobe designed andinstalled

ISCC November 16, 2009A. Herlert

Status of experiments - EC

New experiment: On-line emission channeling

Aug 2009

ISCC November 16, 2009A. Herlert

Status of experiments - MISTRAL

• Clean-up has started

• RFQ buncher and cooler of MISTRAL removed (shipped to University Mainz)

• Looking into the removal of 22t magnet difficult!

Oct 2009

ISCC November 16, 2009A. Herlert

Status of experiments - Beta-NMR

Two PhD students:Hans Tornqvist (CERN - supervisor Thomas Nilsson)Christophe Sotty (Orsay - supervisor Georgi Georgiev)

Initial safety discussionto be done soon

mailing list andweb page available

Tilted foil polarizationFirst test in week 48 withstable Ne beam from EBIS

Support from W.-D. Zeitz

Nov 2009setup progressing well

ISCC November 16, 2009A. Herlert

Status of experiments - CRIS

• Installation ongoing

• Prototype experiment for new safety structure

• Ready for off-line beam during Summer

• First on-line run planned for October 2010

Nov 2009

ISCC November 16, 2009A. Herlert

Status of experiments - WITCH

• New shielding installed (to prevent influence of WITCH magenetic field on HCI beam steering) Not enough (scaling not working)

• Vacuum system of WITCH and almost all electrodes of the spectrometer improved

• Commissioning run in week 47

• Permanent crew (post-doc Martin Breitenfeldt and technician Julien Thiboud)

Nov 2009

ISCC November 16, 2009A. Herlert

Status of experiments - HV Platform

• Can only be used for collections

• Acceleration stage not functional

• Need new transformer?

• Check vacuum system

Renovation ofHV platform needed

Nov 2009

ISCC November 16, 2009A. Herlert

Status of experiments - GLM

• Heavily used by solid state physics community

• New setup available and to be installed soon

• Improvement of concrete shielding planned

Nov 2009

ISCC November 16, 2009A. Herlert

Status of experiments - ASPIC

Future of ASPIC under discussion

• Kay Potzger showed interest, tries to obtain German BMBF funds to revive research program:

• Former HMI Berlin (now HZ for material science) would like to pass on the equipment to the ISOLDE Collaboration until new user takes over responsibility (no additional funds expected)

quote from a recent email: "[...] I decided to write the application for re-installation of ASPIC. My boss (J. Fassbender) in FZD finally agrees and supports the project by involving our workshop, i.e. the new ASPIC chamber will be set up at FZD. Consequently, we will be main users but share the system with all the other groups from ISOLDE (unlike old ASPIC). [...]"

ISCC November 16, 2009A. Herlert

New ISOLDE web page

ALL Files and content transferredby Albert Deh Hwa Taureg(August 2009, "enfants de fonctionnairs" program at CERN)

IT Security issues checked

New web page located at:http://isolde.web.cern.ch/ISOLDE/isoldenewweb

Many files need to be updatedand new pages have to becreated (e.g. for safety)