ELOG ISOLDE

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ISOLDE

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Entry time:	Sat Dec 6 06:12:44 2025
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> Here I am simply digitizing my notes from our visit to CERN 17~18 January 2017. They may not be perfectly linear or organized, but may be searchable. > > ==ISOLDE Hall Info== > > Safety shoes and hard hats are required for everyone. We need to buy our own in the future and bring them with us. > > The 'general purpose scattering chamber' seems to in fact be named the Scattering Experiments Chamber (SEC). > Contact Joakim Cederkall at Lund University in Sweden joakim.cederkall@cern.ch (DK has collaborated with him before in 2012) > Secondary contact olof.tendblad@cern.ch > > 2 meters downstream of SEC we see the SAND neutron detector array. > Contact Ismael Martel at University of Huelva in Spain ismael.martel.bravo@cern.ch > Array structure is on wheels, but needs to be moved before our experiment, presumably by someone from that collaboration > Of course, we don't know after the SEC relocation from station 2 to station 3 that SAND will be installed in the same relative position or not > > SEC has eight (8) transverse ports evenly spaced about its circumference > We need adapters to connect to this > The nominal ISOLDE beamline pipe is 50 mm diameter > Chamber itself is about 1 meter in diameter, about 70 cm tall. Shape is a cylindrical prism with hemispheres on top and bottom > Calculated volume about 0.55 cubic meters > Support structure is about 1 x 1 square meter footprint, about 125 cm tall > 2 large-volume pumps in parallel. > TMP: PTM 5400 ALCATEL CORP x2 > Oil roughing pumps Edwards 12 x2 > According to Karl, its pressure is in the low 10^-6 mbar region, but everything seemed off when we visited so cannot confirm precise value > Presumably it requires the overhead crane to open it > Not many people have the license > Although we don't need to access it very often if at all > Karl said they are arguing to install a small fixed crane for that purpose after relocation which wouldn't need a license > SEC is being disconnected over the weekend (21~22 Jan) > > Alignment in ISOLDE Hall (not very sensible to write w/o diagram) > POT1, POT2 are on the wall downstream of the beam lines > POT3 and POTREX are on the beam-right side before it is turned and delivered to the target stations > Geodetic survey points -- though we don't really know how they are used > > Downstream of station 3 (under construction) is XT03 which is a crosshair on the wall > Presume it was used for alignment of the steering magnet base > Bases are installed but the quadrupoles are still off to the side > > There is no port on the station 2 bending magnet to offer a straight line of sight down to the target station > How was the alignment performed? > We assume station 3 will be installed in a similar manner, unfortunately. > > Station 3 > Expected to be complete by the end of February > > Station 2 > HELIOS-type device will be installed at station 2 > This is presently called ISS and is mainly being done by the Swedish group (Lund?) > Footprints were drawn on the ground downstream of the present SEC point > How much space will the fence to prohibit near-approach for B-field safety be? > > Distances around the stations > From the target positions to the far wall is over 10m, though a lot of equipment and storage lines the wall area > Beam-right wall from station beam-line 3 is about 180 cm > 7 m to station 2 -> ~5 m between station 2 and 3 > End of station #2 to the end of the SEC including the beam pipe is ~210 cm > > At some point, we must provide a list of items ot be imported and used so it can be approved by the CERN Safety groups > > ==Meeting notes with Karl Johnston== > > HIE-ISOLDE may begin physics around the last week of June (say 24~25th) > A MINIBALL experiment is usually prioritized first, given the track record and existing infrastructure and experience. > > From the end of April there will be about 2 months of commissioning, ideally > Though, in years past, the timeline was too tight and commissioning was basically not performed during this period > > They will start the cryogenics on Tuesday, 24th January > > ISS will start to be installed in May for about 3 weeks (? hand writing and detail of notes is poor on this point) > > Anytime in mid-March should be okay for the Edinburgh group to ship > > 59Cu is a candidate for an early run this year > As soon as early July perhaps in an ideal world Encoding*: HTML ELCode plain Suppress Email notification

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