ISOLDE 44Ti meeting notes
23 Oct 2018
==To be ordered==
*Gas bottles at CERN - Helium and (likely) Argon.
Gas bottles for He, Ar can be supplied by CERN
N2 was also approved, but bear in mind volume required
*Spanners to help repair water chiller leak.
Ordered but did they arrive?
*PPE (Safety)
Boots and hardhats for new members
*New valves for gas flow system
*Gas cell stands for each gas cell
Order was submitted.
*Photodiodes
Order of 10 to arrive 7 Nov
*Au foils
Order placed with Paul at STFC
==To be repaired / replaced==
*Manual gate valve between SEC and Edinburgh chamber
New one has arrived - plan to leak check it
Converter flange to check w/ He sniffer ordered arrived
Awaiting clamps that were ordererd
Repair kit was ordered.
*Silena 7100 Quad Bias supply showed false readings during 59Cu exp.
Responsible: Katie, Daid, ...
Not yet repaired, Peter searches for manual
Alternative module was found and tagged for our use, needs testing
*ORTEC 474 TFA was returned to Edinburgh, owing to 10 V baseline shift
Responsible: Katie, Daid, ...
Useful for photodiode trigger. Take replacement back to CERN.
Tagged for repair.
Alternative module was found and tagged for our use, needs testing
*Take additional Pre-amp to CERN for Photodiode?
There are several in the Miniball cupboard...
*Teflon chamber feet stands - done
*Chamber stand wheel struts
Responsible: Peter, Daid
We have the necessary preparations, we await Peter.
We will use 118 cm since garage direction is ~121 cm
==Decisions==
*How shall we integrate the beam intensity delivered to target?
Total integrated current, with efficiency-calibrated Ge detector
Gold foil w/ back-scattering to photodiode?
Needs foil, mounts for foil & photodiode. Other parts prepared.
Alpha scattering in SSDs is most preferred.
*Photodiode degrader foil for isobaric check
10, 15, 20 um Al are prepared at CERN, 2 blank frames in Edinburgh
What thickness is sufficient for 44Sc / 44Ti separation?
(...or other suspected contamination...)
Need to know the beam energies! This is quick work.
*Target ladder setup -- IMPORTANT
How many targets can fit & what should they be?
3 mm collimator
Photodiodes (takes two slots)
Viewing screen (?)
1 mm collimator (?)
Blank target frame (?)
==Work==
*Gas cell
Responsible: Katie, Conor
Gas cell eventually needs to go to CERN.
New needle valves and some piping for the gas flow control.
**Window material / thickness
9, 12.5 um Al
3, 6 um Ti
2.5 um Havar
3 um Ti, 12.5 um Al are installed with leak rates < 1 Torr/hr.
*Chamber alignment
Responsible: Peter Black
Previously, we contacted the survey team to come assist.
Alignment parts are all at CERN.
*DAQ PC has any further issues to get on the network?
Responsible: Tom Davinson
(If PC is turned on, contact Ruchi as she would like some data.)
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