ELOG ISOLDE

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

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Mon Oct 8 17:02:47 2018

Target ladder photo from previous experiment

From Alex, attached.

Attachment 1: IMG_1274.jpg

196

Tue Oct 9 10:40:13 2018

To-do Meeting Notes: July, August, September, October

Each month's notes are attached.  Unfinished business naturally carries over to the next month.

This elog will be updated with new notes as necessary.

NB: These are the notes composed *prior* to the meeting, thus do not include any suggestions or corrections.

Attachment 1: 2018-07-todo.txt

ISOLDE 44Ti meeting notes
19 Jul 2018

==To be ordered==

*Entrance window foils, TBD
6um Ti from Goodfellow?

*Gas bottles at CERN - Helium and (likely) Argon.
ISOLDE might provide them, but they never did for N2 gas
Gas bottle will need a regulator (new or old one)

*Spanners to help repair water chiller leak.
We need the right imperial size (x2) for Swagelok.
Sizes? Email says 2x 9/16" but let's confirm

*High precision balance
No new updates. Do we really need it?

==To be repaired / replaced==

*Manual gate valve between SEC and Edinburgh chamber
Responsible: Peter, Daid, CERN Vacuum Team ...

The old one had a leak, likely from the O-ring
(Automated fast-acting gate valve could be required)
At some point, we may have to decide w/o input
Path of least resistance: fix existing one

(The old manual one should be around Peter's office...what's the beam pipe size?)

*Silena 7100 Quad Bias supply showed false readings during 59Cu exp.
Responsible: 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: Daid, ...

Useful for photodiode trigger. Take replacement back to CERN.

Tagged for repair.
Alternative module was found and tagged for our use, needs testing

*Teflon chamber feet stands
Responsible: Toby Fu

The original foot engraving diameter was too small, by mistake. The chamber could be shifted after alignment
But what are the design specifications?

EMAIL Mirco TO PICK THEM UP FOR US FROM ISOLDE

==Decisions==

*How shall we integrate the beam intensity delivered to target?
Gold foil w/ back-scattering to photodiode?
Needs foil, mounts for foil & photodiode. Other parts prepared.
Alpha scattering in SSDs is another option

*Photodiode degrader foil for isobaric check
Which Al foil(s) are prepared?
In Edinburgh or CERN?
What thickness is sufficient for 44Sc / 44Ti separation?

*Gas cell entrance window material / thickness

==Work==

*Decide beam energies
Responsible: Conor, Alex, Daid

1.2, 1.55, 1.88, 2.2 and 2.8 MeV/u were stated as available

*Model effect of beam spot size.
Responsible: Conor

~3 mm FWHM was achieved for 59Cu

*Gas cell
Responsible: Katie, Conor

Vacuum system is set up in Edinburgh, and He gas is available
He gas bottle needs a mounting support prior to use.
Everything is in Physics Stores
We can continue to investigate true leak rate, gas cell handling, assembly

Gas cell eventually needs to go to CERN.
Are we satisfied with the setup, or shall we get new parts?
(e.g. several new valves, ...)

*Chamber alignment
Responsible: Peter Black

Chamber is currently disconnected from the beam line.
Previously, we contacted the survey team to come assist.

*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.)

Attachment 2: 2018-08-todo.txt

ISOLDE 44Ti meeting notes
28 Aug 2018

==To be ordered==

*Entrance window foils, TBD
  3um Ti from Goodfellow?  Is it light-tight?

*Gas bottles at CERN - Helium and (likely) Argon.  
  ISOLDE might provide them, but they never did for N2 gas
  Gas bottle will need a regulator (new or old one)

*Spanners to help repair water chiller leak.
  *FIRST CHECK VACUUM, CHILLER!*
  	NB: Might damage piping during re-assembly
  We need the right imperial size (x2) for Swagelok.  
  Sizes?  Email says 2x 9/16" but let's confirm

*High precision balance -- no need to buy
 We are welcome to use the one in the chem lab on 2nd floor
   Just wear a lab coat, and don't move other people's stuff

*PPE (Safety)
  Boots and hardhats for new members

==To be repaired / replaced==

*Manual gate valve between SEC and Edinburgh chamber
  Responsible: Peter, Daid, Conor, Katie, ...

  The old one had a leak, we don't know where
    It's on top of Peter's PC in his office

  Students can test in Edinburgh...once leak is identified: 
    Fix ourselves or send to Lesker?

*Silena 7100 Quad Bias supply showed false readings during 59Cu exp.
  Responsible: 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: 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
  Responsible: Toby, Mirco, Daid

  The original foot engraving diameter was too small, by mistake.  
  But what are the design specifications?

  (Mirco picked these up for us, so they are in Germany?)

*Chamber stand wheel struts
  Responsible: Peter, Daid, ...

  Original ones are damaged at the ends, and also too long

  Maria suggested 120 cm.  We measured ~121 cm opening towards garage

  To make less top-heavy, we can add a lower shelf and stack weight on it

==Decisions==

*How shall we integrate the beam intensity delivered to target?
  Total integrated current, with efficiency-calibrated Ge detector
    Talk to Liam?
  Gold foil w/ back-scattering to photodiode?  
    Needs foil, mounts for foil & photodiode.  Other parts prepared.
  Alpha scattering in SSDs is another option

*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...)

*Gas cell entrance window material / thickness

*Target ladder setup
  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==

*Determine beam energies
  Responsible: Conor, Alex, Daid, Karl, Alberto, ...

  1.2, 1.55, 1.88, 2.2 and 2.8 MeV/u were stated as available

  Karl mentioned the possibility of a beam test.

  Previous beam was 44Ti+13.  40Ar may be a good pilot?

*Model effect of beam spot size -- still relevant? 
  Responsible: Conor

  ~3 mm FWHM was achieved for 59Cu

*Gas cell
  Responsible: Katie, Conor

  Vacuum system is set up in Edinburgh, and He gas is available
  He gas bottle needs regulator, that's it.

  Gas cell eventually needs to go to CERN.  
  Are we satisfied with the setup, or shall we get new parts?
     (e.g. several new valves, ...)

*Chamber alignment
  Responsible: Peter Black

  Chamber is currently disconnected from the beam line.
  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.)

Attachment 3: 2018-09-todo.txt

ISOLDE 44Ti meeting notes
27 Sept 2018

==To be ordered==

*Entrance window foils, TBD
  4um Ti from Goodfellow?
  9, 12 um Al from Goodfellow?
  (Some existing queries regarding Havar, et al.)

*Gas bottles at CERN - Helium and (likely) Argon.  
  ISOLDE might provide them, but they never did for N2 gas
  Gas bottle will need a regulator (new or old one)

*Spanners to help repair water chiller leak.
  *FIRST CHECK VACUUM, CHILLER!*
  	NB: Might damage piping during re-assembly
  We need the right imperial size (x2) for Swagelok.  
  Sizes?  Email says 2x 9/16" but let's confirm

*High precision balance
 Daid still needs to show Katie and Conor where the room is and what to do.
 We are welcome to use the one in the chem lab on 2nd floor
   Just wear a lab coat, and don't move other people's stuff

*PPE (Safety)
  Boots and hardhats for new members

==To be repaired / replaced==

*Manual gate valve between SEC and Edinburgh chamber
  Responsible: (Your name here)
  Lesker quotes £123 for a repair kit.  Check the elog.  Does anyone volunteer?

  New one has arrived - plan to leak check it
  We need a KF-50 to ~ KF-25 (need to check) converter

*Photodiodes
  Responsible: Daid
  We have 3 at CERN, but no more in Edinburgh.  Order more!

*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
  Responsible: Toby, Daid

  The original foot engraving diameter was too small, by mistake.  

  They are at Daid's desk, with tracings of the proper size.

*Chamber stand wheel struts
  Responsible: Peter, Daid, Conor, Ruchi

  Original ones are damaged at the ends, and also too long

  Maria suggested 120 cm.  We measured ~121 cm opening towards garage

  To make less top-heavy, we can add a lower shelf and stack weight on it
  
  Need a measurement of bolt spacing, Ruchi has a friend who can help us.

==Decisions==

*How shall we integrate the beam intensity delivered to target?
  Total integrated current, with efficiency-calibrated Ge detector
    Talk to Liam?
  Gold foil w/ back-scattering to photodiode?  
    Needs foil, mounts for foil & photodiode.  Other parts prepared.
    Daid should contact Paul Morrall
  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...)

*Gas cell entrance window material / thickness

*Target ladder setup
  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==

*Determine beam energies
  Responsible: Conor, Alex, Daid, Karl, Alberto, ...

  1.2, 1.55, 1.88, 2.2 and 2.8 MeV/u were stated as available

  Karl mentioned the possibility of a beam test.

  Previous beam was 44Ti+13.  40Ar may be a good pilot?
  
  WE AWAIT ALBERTO'S OPTICS CALCS  & CRYO MODULE SCHEDULE.

*Model effect of beam spot size -- still relevant? 
  Responsible: Conor

  ~3 mm FWHM was achieved for 59Cu

*Gas cell
  Responsible: Katie, Conor

  Vacuum system is set up in Edinburgh, and He gas is available

  Gas cell eventually needs to go to CERN.  
  
  New needle valves and some piping for the gas flow control. 

*Chamber alignment
  Responsible: Peter Black

  Chamber is currently disconnected from the beam line.
  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.)

Attachment 4: 2018-10-todo.txt

ISOLDE 44Ti meeting notes
09 Oct 2018 

==To be ordered==

*Windows
  Done

*Gas bottles at CERN - Helium and (likely) Argon.  
  Gas bottle will need a regulator (new or old one)
  Emailed Karl to inquire.  N2 necessary?

*Spanners to help repair water chiller leak.
  Done

*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
  We have 3 at CERN, but no more in Edinburgh.  Order more!

*Au foils

==To be repaired / replaced==

*Manual gate valve between SEC and Edinburgh chamber
  Responsible: (Your name here)
  Lesker quotes £123 for a repair kit.  Do we give up?

  New one has arrived - plan to leak check it
  Converter flange to check w/ He sniffer ordered, not arrived.

*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, Conor, Ruchi

  Original ones are damaged at the ends, and also too long

  Maria suggested 120 cm.  We measured ~121 cm opening towards garage

  To make less top-heavy, we can add a lower shelf and stack weight on it
  
  Need a measurement of bolt spacing, Ruchi has a friend who can help us.

==Decisions==

*How shall we integrate the beam intensity delivered to target?
  Total integrated current, with efficiency-calibrated Ge detector
    Talk to Liam?
  Gold foil w/ back-scattering to photodiode?  
    Needs foil, mounts for foil & photodiode.  Other parts prepared.
    Daid should contact Paul Morrall
  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
  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

  Vacuum system is set up in Edinburgh, and He gas is available

  Gas cell eventually needs to go to CERN.  
  
  New needle valves and some piping for the gas flow control.

  Many windows, washers, etc are now ready to go!

  **Window material / thickness
    9, 12.5 um Al arrived.
    3 um Ti arrived, some holes but maybe serviceable
    6 um Ti had order mixup
    We can get Havar in 2 weeks privately


*Chamber alignment
  Responsible: Peter Black

  Chamber is currently disconnected from the beam line.
  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.)

Attachment 5: 2018-10-23-todo.txt

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.)

Attachment 6: 2018-10-31-todo.txt

ISOLDE 44Ti meeting notes
31 Oct 2018 

==ENSAR2 status==
  We have some information from people, but not enough.
  When is the deadline?

==Meetings at CERN next week==

*Beam energy w/ Alberto

*Crane use w/ Olof

*Survey team w/ Peter Skypes

*RILIS people for laser ideas

*Find Liam if we need the alpha source

==To be ordered==

*PPE (Safety)
  Boots and hardhats for new members

*New valves for gas flow system
  Done.  Peter will help weld it up later.

*Gas cell stands for each gas cell
  Order is completed.  We are awaiting M2 screws now.

*Photodiodes
  Order of 10 to arrive 7 Nov

*Au foils
  Paul at STFC confirmed the order.

==To be repaired / replaced==

*Manual gate valve between SEC and Edinburgh chamber
  New one has arrived - plan to leak check it
    Awaiting clamps that were ordererd

  Repair kit was ordered.  Maybe Katie can enjoy this.

*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...

*Chamber stand wheel struts
  These were mailed to CERN attn: Karl Johnston.  He confirmed with DHL.

==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
  Peter has made a jig for us, it looks promising.
  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.  
  
  **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.
    We'll have a chat next week.  Peter can join w/ Skype.
  Alignment parts are all at CERN, _except a gas cell prism holder_

*DAQ PC has any further issues to get on the network?
  Responsible: Daid, Tom Davinson  
  (If PC is turned on, contact Ruchi as she would like some data.)

*Cobbling things together at CERN next week
  Responsible: Daid, Conor, ...

  What should we take?  
    Rainbows and unicorns.
  What should we bring back?
    Some chocolate, maybe

==Simulation code==
  Responsible: Daid, Alex, Conor, ...

  Sounds like some people are reinventing the wheel in Canada.  
  What's the best way to collaborate and share?  Probably git.

197

Tue Oct 9 14:25:54 2018

Au foil request to STFC

http://npg.dl.ac.uk/TargetRequests/

https://www.technologysi.stfc.ac.uk/Pages/Target-frames.aspx

The standard frame is NSF CP type 3

Asked for 5x 100 ug/cm^2 Au.

Attachment 1: NPG_-_Online_Target_Request.pdf

198

Wed Oct 10 10:57:33 2018

Chamber wheel bolt spacing

From Ruchi's friend Rob.

Attachment 1: WhatsApp_Image_2018-10-10_at_09.14.43.jpeg

200

Wed Oct 31 14:50:36 2018

Strut shipping info

http://www.dhl.com/en/express/tracking.html?AWB=1647723055&brand=DHL

201

Wed Oct 31 16:01:33 2018

Measuring foil thickness

A couple scans from my notes which may be useful.

One discusses alpha energy loss in nominal kitchen foil (~12 um) and also introduces my technique to calibrate a thin (~20 um) SSD.  Sorry I forget which student's thesis it's from, either Sakaguchi of CNS Tokyo or perhaps Dahee Kim of 
Ewha.  They both did alpha measurements in 2015 as memory serves.  It shows we could measure the thickness of the 12.5 um Al foil from Goodfellow with a standard source.

The second is just an email to a colleague about how I went about measuring some foils by weight.  In that case, I want to get an idea on "how much aluminium might be evaporated on the mylar" and I got, I believe, a pretty sensible 
answer.  Of course, I *assumed* that the mylar was the nominal value.

Attachment 1: DOC_(4).PDF

Attachment 2: DOC_(5).PDF

202

Fri Nov 2 17:01:16 2018

Inventory going to CERN by easyJet

Conor will take:

==Black clicker case==

Foam packed, gas cell "b" with 12.5 um Al entrance window.
Target ladder with broken gas cell installed.

Daid will take:

==Backpack etc==

1 box with 4 quick-release gas tube hoses.
One bag with 6 teflon foot supports.
One small bag with gain screwdriver, 2 LEMO barrels, a bag of M2 screws from Japan, 1 gas cell saddle.
Gas cell feedthrogh, in bubble wrap
Gas cell vacuum bypass, including analog gauge dial.
One bag with extra O-rings and the acrylic window for the gas feedthrough itself
Silena Quad Bias Supply 7710
4 imperial spanners for Swagelok
2 Notebooks (common one and daid's one)

Tue Sep 19 14:54:47 2017

Claudia, Toby

Setup Photos

Attachment 1: DSC01138.JPG

Attachment 2: DSC01141.JPG

Attachment 3: DSC01146.JPG

Attachment 4: DSC01148.JPG

Attachment 5: DSC01169.JPG

Attachment 6: DSC01170.JPG

Attachment 7: DSC01171.JPG

Attachment 8: DSC01172.JPG

Attachment 9: DSC01176.JPG

Attachment 10: DSC01182.JPG

Attachment 11: image1.JPG

Attachment 12: image2.JPG

Attachment 13: image3.JPG

Attachment 14: image4.JPG

Tue Mar 14 10:57:20 2017

Claudia

Meeting Edinburgh 14 March 10 am 2017

1) DAQ

We have 192 channels to DAQ working. Mirco will test the silicon detectors with an alpha source in the next 2 weeks.

2) Vacuum

In the moment we reach 6E-6. There are still 2 tiny leaks. There will be an extra turbo for the upstream beam line which should improve the vacuum for ISOLDE purposes.
We need to check how fast we can pump down as might need to open the chamber between tuning and beam time (detectors need to be protected from tune beam).

3) Alignment

Alignment of the sample positions can be done here (Mirco/Peter). Claudia will contact Karl about a survey team for alignment at ISOLDE. Then we can talk to them directly.

4) Shipping

We aim to ship the setup to CERN by the end of March. We will try to go over to CERN for initial setup middle of April (to be confirmed with Karl)

5) Equipment needed from CERN

Claudia will ask Karl about availability of a CAMAC crate and 2 NIM bins.

6) Safety

Peter will order safety boots and hard hats.
Those who do not have ISOLDE access need to attend the ISOLDE radiation protection course.

7) Availability for Preparations

Tom not here: 25 March - 3 April, 25 April - middle June
Daid not here: until middle June ?

8) Samples CH2, CD2

Paul has new batch and should send alpha spectra soon.

Sat Sep 9 09:39:38 2017

Claudia

Vacuum Readings at ISOLDE Hall

Thursday, 7th September:

Vaccum after pumping all night preamps off, chiller off

09:37: IMG1 2.3E-5 mbar, Chamber 7.5 E-5 mbar; Julabo off;
09:38: IMG1 2.1E-5 mbar; Chamber 6.6E-5 mbar; Julabo 20 Celsius
09:41: IMG1 2E-5; Chamber 6.6E-5; Julabo 5 Celsius
09:55: IMG1 1.3E-5; Chamber 1.3E-5
10:10 IMG1 1.2E-5; Chamber 4.5E-5;

Preamp power ON, Chiller on 5 Celsius

10:25 IMG1 1.3E-5; 5E-5; Thermocoupling Readout 16 Celsius
11:20 IMG1 1.5E-5; 6.1E-5 Thermocoupling Readount 19.3
13:08 IMG1 1.6E-5; 5.5E-5
14:16 IMG1 1.4E-5; 5.1E-5
15:40 IMG1 1.4E-5; 4.9E-5
17:55 IMG1 1.3E-5; 4.5E-5

Preamp OFF, chiller off

8th September

1.2E-5; 3.9E-5

--> Leak test with He, replace target ladder with blank and refit feedtrhrough (upstream detectors), identify some scratches

start pumping

23:50 IMG1 2.2E-5; Chamber 9E-5

9th September

08:17 IMG1 1.3E-5; 5.1E-5 mbar

Leak test but no leaks found anywhere now.

Chiller on 5 Celsius, preamplifiers ON

10:55 IMG1 9.1E-6; 3.8E-5
12:00 IMG1 8.9E-6; 4.0E-5
14:50 IMG1 8.1E-6; 3.6E-5

Preamplifiers OFF

15:05 IMG1 6.3E-6; 2.9E-5 (9.8 C)
15:12 IMG1 6.1E-1; 2.9E-5 (9.3 C)
15:25 IMG1 5.9E-6; 2.8E-5 (9.0 C)

Chiller OFF (not sure when exactly chiller was turned off)

Sunday 10/09/2017

22:50 IMG1 8.8E-06; 3.4E-05

Monday 11/09/2017

9:20 IMG1 8.2E-06; 2.7E-05

Leak test on Cooling loop. --> Big leak detected. Open up chamber to replace cooling.

Tuesday 12/09/2017

Several tests done for cooling, it seems that even the smallest possible cooling loop is leaky.

19:00, close chamber and start pumping
19:13 start both turbo pumps at 9.9E-1 mbar
19:23 P=2.7E-4 mbar

Note that big Turbopump has been switched to normal start so pumping times not comparable with before. Maximum wattage of pump should be 420 W

Wednesday 13/09/2017

9:15 8.5E-6 mbar; 3.1E-5mbar
9:30 Cooling ON, switched to -10C
10:05 4.4E-6 mbar; 1.7E-5 bar (-9.9C on chiller)
10:15 preamps on, -10 C, 4.1E-6; 1.6E-5 mbar
10:22 T readout 5.6 C, 4.6E-6; 1.8E-5
10:26 T readount 6.2 C; 4.8E-6 mbar, 1.9E-5 mbar
10:40 4.9E-6 mbar; 1.9E-5 mbar

Preamps off, cooler off

open chamber for detector installation and some checks; close chamber and pump

18:55 7.2E-5; 3.3E-4 mbar
20:45 4.4E-5; 1.8E-4 mbar (nopreamp, no chiller)

Thursday, 14 September 2017

9:25 1.1E-5mbar; 4.3E-5 mbar

open chamber to discuss with beam operators

11:05 close chamber start pumping
11:20 1.2 mbar, turbo pumps on
11:32 4.1E-4 mbar; 1.1E-3 mbar

Thu Sep 14 08:37:27 2017

Claudia

Detector installation

dE detector: 2083-9, 74 um thick, V_depletion=12V; V_operating=24 V

E detector: 3080-23, 1012 um thick, V_d=110; V_o=350 V

HI detector: 2410-23, 65 um; V_d=7 ; V_o=14 V

Connect bias cables 14,15,16 (dE,E,HI)

Quad Bias Supply ports 1,2,3 (dE,E,HI). There seems to be some offset voltage on them (V1=3V, V2=7V, V3=1V, V4=4V) Seems to go dowon when preamps are on.

Leakage Currents

dE:

dE Leakage Currents
Voltage	Current (uA)
7	0.15
11	0.22
16	0.31
21	0.39
24	0.44

Voltage	Leakage Current (uA)
15	0.28
20	0.37
30	0.49
40	0.60
50	0.72
60	0.82
81	1.04
100	1.2
122	1.4
140	1.55
160	1.7
180	1.82
202	1.96
225	2.06
250	2.18
275	2.29
300	2.39
326	2.47
340	2.52
350	2.55

HI:

Voltage (V)	Current (uA)
3	0.21
6	0.46
8	0.61
10	0.72
12	0.87
14	1.02

Attachment 1: depletion.pdf

Attachment 2: profile.pdf

Attachment 3: resolution.pdf

Attachment 4: 3080-23.PDF

Attachment 5: depletion.pdf

Attachment 6: profile.pdf

Attachment 7: resolution.pdf

Attachment 8: S2_PINOUT.jpg

Thu Sep 14 10:24:34 2017

Claudia

Detector - ADC connection

ADC#1 0-31: p+n dE

ADC#2 32-48: n+n dE

ADC#2 49-64: p+n dE

ADC#3 0-31: p+n E

ADC#4 32-48: n+n E

ADC#4 49-64: p+n E

ADC#5 0-31: p+n HI

ADC#6 32-48: n+n HI

ADC#7 49-64: p+n HI

Thu Sep 14 10:29:25 2017

Claudia

Alpha Calibration

Run 1-10 Test

14 September 2017

Run 11 Start 18:16 (CERN time)

Faults:

adc#2 7,8 missing segments (n+n side dE)

adc#3 19 low gain (p+n E)

some strips have no noise but maybe that is OK.

Run 12 Start 11:50

Pulse switched on halfway through

Run 13 Start 12:08

Pulser on

ADC spectra:

#1 ch0 bad resolution (also pulser)

#2 ch7 ch8: no alphas, pulser there

#3 ch0 low gain, ch24 low resolution

#4 ch 7 low gain only for alphas (not pulser)

TDC missing: ch 32,80,120,123

Not understood yet: 1mm detector has peak at ~1.5 MeV @ adc#3 ch20-30 (with ALL alpha events when visible , 24 looks very distorted); not visible in ADC#4 (n+n) no alpha in ADC#6 although segment.

Thu Sep 21 14:54:00 2017

Claudia

Alpha Calibration Spectra

Alpha Calibration Runs (need to check settings in logbook)

0-63: dE detector and 32-47 is n+n; 64-127 E detector and 96-111 is n+n; 128-191 HI detector

Run 13: alpha source in fromt of dE detector (0-63). All detectors connected.

0-15 OK
16-31 OK
32-47 pulser appears at higher amplitude, alphas in a similar spot
48-63 OK
64-79 ch64 low gain but only for pulser (alphas look fine)
80-95 ch83 low gain, ch88 bad resolution. some strips show alphas
96-111 ch102 no alphas, ch103 low gain
112-127 pulser OK
128-191 (HI detector) looks ok

dE Layer is Removed

Run 15: alpha source in front of E detector, no dE

0-15 OFF
16-31 OFF
32-47 OFF
48-63 OFF
64-79 ch64 low gain but only for pulser (alphas look fine)
80-95 ch83 low gain, ch88 bad resolution.
96-111 ch102 no alphas, ch103 low gain
112-127 OK

Run 16: alpha source in front of E detector, no dE

0-15 OFF
16-31 OFF
32-47 OFF
48-63 OFF
64-79 ch64 low resolution, low gain but only for pulser
80-95 ch83 low gain, ch88 bad resolution.
96-111 ch102 /ch103 problem
112-127 OK

Run 18 does not seem to be in Run book

Run 18: alpha source in front of E detector,

0-15 OFF
16-31 OFF
32-47 OFF
48-63 OFF
64-79 ch64 as Run 16
80-95 ch83 as Run 16
96-111 alphas there but there are two pulser peaks in all segments, and a lot of alpha peaks...
112-127 OK

Run 19: same settings as Run 16

0-15 OFF
16-31 OFF
32-47 OFF
48-63 OFF
64-79 ch64 as Run 16
80-95 ch83 as Run 16
96-111 102/103 empty/low gain
128-143 OK
144-159 152-154 low resolution
160-175 OK
176-191 OK

For later runs the information is taken from logbook as no runs have been saved:

Run 23: E detector switched to #2951-22

0-15 OFF
16-31 OFF
32-47 OFF
48-63 OFF
64-79 ch64 as Run16
80-95 ch83 as Run 16
96-111 102/103 empty/low gain
112-127 OK

Run 24 Cable for 1 mm E detector must be faulty; Check new cable

64-79 OK
80-95 ch 83 low gain
96-111 ch 101, ch 103 low gain
112-127 OK

Attachment 1: Screenshot_from_2017-09-21_14-43-48.png

Attachment 2: Screenshot_from_2017-09-21_14-43-17.png

Thu Oct 5 11:34:34 2017

Claudia

Meeting 5.10.17

POINTS FOR DISCUSSION

Email sent to Karl and Olof about
FC at end of SEC
Gain resistor package
Network access
N2 gas

To ask still:

date for connection of SEC to our chamber
collimator in front of chamber ?

No reply, remind next week, best by phone

2) Parts to be prepared in Edinburgh

-Iris under construction, add. stop so it does not close all the way. coming along nicely. might have to increase detector distance a bit for safety.
spare feedthrough for cooling, to be done
Al degrader: We have 15 um and 8 um in Edinburgh, Daid will check if light-tight. We dont have 8, but we have 10 and 6 um which should both be possible. We will prepare one 15, one 8 and on 6, possibly backups. Check what it would do for straggling if there is no hole in the middle of the foil. use 20 mm cookie cutter for circle. earth foils? Tom: Make hole, we have frames.
Photo diodes x2 along with degrader foil: PCB for photodiodes. extra holes for ladder. coming along. 2 diodes need a bit less than 2 space, 10 spaces in total, maybe 11.
Faraday cup SHV to SMA converter: Peter to order
Window port for front of chamber? Peter to draw
Extra ribbon cables are needed? Need short cables detector to preamp. Also need long ribbon cables. Peter will make 2 new ones
Photographs and diagrams of experimental setup -- organized clearly for beam operators during tuning: add technical drawing on elog Peter will make it coherent. Safety Folder/Risk Assessment. Safety Datasheets (Ethanol).
Alignment -- 2 end caps and one target ladder mount for optics reflector (8 mm diameter?) For survey people. Peter: two ends are done, drawings for S2 and target ladder mountain points not made yet.
Adjustable feet to be produced for radial alignment: Peter / Toby

3)Decisions / Analysis

Alpha analysis: dE and HI detectors seem ok, We need spare cables for Detector to preamplifier.
Sort Routine: Tom will provide sort routine and test file to look at real data.
Target ladder config finalization: 2 photodiodes, collimator (what size, we have 3 mm and 10mm), Beam viewer, 3 CH2 and 2 Carbon.
Calibration of Target ladder positions. Peter / Daid
CH2 and C sample choice. So far CH2 Target 1: 30+25 (480ug/cm2); CH2 Target 2: 16 (400 ug/cm2)

Thu Oct 12 12:45:54 2017

Claudia

Meeting 12.10.17

Email sent to Karl and Olof about

FC at end of SEC
Gain resistor package
Network access
N2 gas
date for connection of SEC to our chamber
collimator in front of chamber ?

Next week call Karl. Daid will look at old Olof emails

2) Parts to be prepared in Edinburgh

- Iris under construction, add. stop so it does not close all the way. coming along nicely. might have to increase detector distance a bit for safety. no news
spare feedthrough for cooling, to be done
Al degrader: We have 15 um and 6&10 um in Edinburgh, Daid will check if light-tight. We will prepare one 15, one 10 and on 6, possibly backups. Make hole, we have frames. more frames
Photo diodes x2 along with degrader foil: PCB & photodiodes here. extra holes for ladder. coming along. 2 diodes need a bit less than 2 space, 10 spaces in total, maybe 11. drawings there. Preamps, amps? ask Tom
Faraday cup SHV to SMA converter: Peter on order
Window port for front of chamber? Peter to manufacture
Extra ribbon cables are needed? need to check with calibration. Also need long ribbon cables. Peter will make 2 new ones. Peter has bits
Photographs and diagrams of experimental setup -- organized clearly for beam operators during tuning: add technical drawing on elog Peter will make it coherent. Safety Folder/Risk Assessment. Safety Datasheets (Ethanol). send to Karl
Alignment -- 2 end caps and one target ladder mount for optics reflector (8 mm diameter?) For survey people. Peter: two ends are done, drawings for S2 and target ladder mountain points not made yet.
Adjustable feet to be produced for radial alignment: Peter / Toby

3)Decisions / Analysis

Alpha analysis: dE and HI detectors seem ok, We need spare cables for Detector to preamplifier.
Sort Routine — ask Tom
Target ladder config finalization: 2 photodiodes, collimator (what size, we have 3 mm and 10mm), Beam viewer, We need to verify how many positions we have. 3 CH2 and 2 Carbon.
Calibration of Target ladder positions. Peter / Daid
CH2 and C sample choice. So far CH2 Target 1: 30+25 (480ug/cm2); CH2 Target 2: 16 (400 ug/cm2). Check combination 33+1+10. New Ch2 from Paul —> Check thickness asap!

Thu Oct 19 10:55:54 2017

Claudia

Meeting 19.10.

CERN-Edinburgh Liaison

FC at end of SEC: manual
Network access: port free.
N2 gas ?
-date for connection of SEC to our chamber: week 30. October, 2nd November alignment.
collimator in front of chamber ?? contact Jorge Alberto about beam tuning in general (maybe add contingency high energy point) ? cc Karl

look for 4 deliveries: 2 bags gain resistors, 1 box luvac, 1 box farnell

2) Parts to be prepared in Edinburgh

Iris: no news should be done today
spare feedthrough for cooling, to be done.
Al degrader: we have 2x10, 2x15 um (hole in center and light checked). 6 um still to prepare, 20 um maybe. mounts to be delivered.
Photo diodes x2 along with degrader foil: PCB & photodiodes here. extra holes for ladder. drawings there. making degrader foil holder. target ladder remade. Preamps, amps? ask Tom. Cocknell preamp tested. 20 mv/MeV (250 MeV max). maybe borrow some more amps from miniball.
Faraday cup SHV to SMA converter: needs to be glued together
Window port for front of chamber? Peter to manufacture
Extra ribbon cables are needed? need to check with calibration. Also need long ribbon cables. will be done today/tomorrow
Photographs and diagrams of experimental setup -- organized clearly for beam operators during tuning: add technical drawing on elog Peter will make it coherent. Safety Folder/Risk Assessment. Safety Datasheets (Ethanol).
Alignment -- 2 end caps and one target ladder mount for optics reflector (8 mm diameter?) For survey people. Peter: two ends are done, drawings for S2 and target ladder mount points are at workshop
Adjustable feet to be produced for radial alignment: Toby, almost done
degrading of 12C - on elog.

3)Decisions / Analysis

Alpha analysis: dE and HI detectors seem ok, We need spare cables for Detector to preamplifier.
Sort Routine — Ruchi +Alex+Tom
Target ladder config finalization: 2 photodiodes, collimator (what size, we have 3 mm and 10mm), Beam viewer, 3 CH2 and 2 Carbon.
Calibration of Target ladder positions. Peter / Daid
CH2 and C sample choice. So far CH2 Target 1: 30+25 (480ug/cm2); CH2 Target 2: 16 (400 ug/cm2). Check combination 33+1+10. New Ch2 from Paul - all will be sent here

4) CERN Presence:

Ruchi: 22 Oct - ~20 Nov
Mirco: 22-27 Oct, 5- ~20 Nov ?
Claudia: 22-27 Oct, 5- ~20 Nov
Daid: from 30 Oct
Peter: from ~1 Nov
Toby: from 30 Oct
Alex 6-11 Nov
Tom 8- ?? Nov

Sarah: 8 - ?? Nov

Thu Nov 9 08:20:21 2017

Claudia

Restarting Target Current & Line Current

0) If target or line drop, STOP THE BEAM!!

1) If you SEE target or line current go down (top right window of monitors next to the corridor):

Use Knobs open application (monitor below); remember set value; type 0 in set window; click Mode - Reset; click Mode - On. increase current in steps of 100 A

2) If Target or line current off and it happened a while ago

Use Knobs open application (monitor below); type 0 in set window; click Mode - Reset; click Mode - On Use Isolde Target heating GPs application (in monitor below);

Fri Nov 10 16:32:19 2017

Claudia

RAL Amplitude Thresholds

Thresholds of RAL amplifiers set to: dE 30mV; E 20 mV, HI 20 mV

100

Sat Nov 11 07:45:34 2017

Claudia

Checking Laser quality

There is an option to see when the beam is gone if it is due to lasers or due to the accelerator.

- window next to proton requestion switch

- put middle faraday cup in

- switch mass to stable copper 63Cu