 Thu Sep 27 11:14:34 2018, CBH, Photos and Measurements from August CERN Trip 
|
Chamber frame width=65cm
Chamber frame height=146cm
Chamber frame length=230cm
Centre of mass of chamber (from ground)=173cm
Wheel span=160cm
SEC to wall=124cm
Ventilation box to container (to get to garage)=121cm
Photos of broken ends of struts attached. |
|
Mon Sep 24 14:44:48 2018, DK, ISOLDE vacuum schematic
|
Attached. PDF is produced with Gnome Dia -- source file attached as well.
Bellow near GV is not depicted. None of SEC components are depicted (as they would be irrelevant with the GV in place).
Need to make inset for gas flow system. |
|
Thu Aug 30 15:14:50 2018, DK, Gate Valve
|
Some notes on the broken gate valve that should go between SEC and our chamber at XT03. |
|
Thu Aug 23 18:57:15 2018, DK, What daid is taking from ISOLDE to Edinburgh
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1 bolt for chamber stand structure, for reference for new struts.
2 target ladders: spare 1/2 style ladder, ladder from inside chamber, including the bits to connect to actuator
2 dual photodiode frames for degraders. (Existing at CERN are 3 more, with 10, 15, and 20 um Al foil over one side, respectively)
Acrylic window from beam upstream (front) top of chamber, where gas feedthrough is meant to go. |
|
Thu Aug 23 18:23:27 2018, DK, Where to find (our) stuff at ISOLDE
|
=Overview=
Shoes, hard hats, 'underpants', spiders, etc: Cardboard box "R", Garage entry of ISOLDE, shelf opposite turnstyle.
Electronics racks: between XT02 and XT03 beam lines. Atop racks are power strips, box of ribbon cables
Chamber, stand: beam left of XT01.
Wooden chamber shipping box: MIA?!
5 SSDs, 3 photodiodes, (10, 15, 20 um Al degraders for photodiodes), heavy ion degrader foils of 59Cu: MINIBALL fragile cabi
All others: Building 275, in the 7 metal boxes.
=New inventory after moving chamber=
Summary:
1 A Toolbag etc, packed aug 2018 - has Faraday cup cable in pocket
2 F Packings only
3 O extra ribbon cables, helmet, TV power supply (look here as last resort)
4 C Packed Aug 2018, see below. Small TMP, vacuum gauge readouts, etc
5 B Large TMP, packed august 2018
6 P vacuum tubes, chamber innards, irises, bolts and such
7 Q tom's favorite PC and components
==Box A==
Toolbag
has faraday cup cable, inner pocket
SEC flange to connect our beam line !!
bolts to fix chamber to stand, in a bag in outer pocket
1 photodiode preamp, outer pocket.
fan, peter's idea how to cool small TMP
==Box B==
Large TMP
Connectors and cut allen key for chamber mounting -- daid's pocket, intending to tape to inside top of box
(nothing else, just these item)
==Box C==
Large TMP controller
Small TMP, with valve attached at exit and C clamp on top to connect to chamber.
Small TMP controller
Both digital vacuum gauge readouts
===unlabeled subbox of C (quickly sealed w/ blue tape)===
3 power supply cables (1 w/ swiss converter)
2 SHV cables (for inv. magnetron gauges)
1 funky cable for other vacuum gauge
1 bag of unknown origin pre-existing in box:
1 fuse
1 ferrite clamp
1 bumper foot
===2nd unlabelled subbox===
handed to me by someone, from near XT03.
appears to be related w/ chamber internal video camera...LEDs, wires, RCA connectors, etc
==Box P==
(added vacuum tubes)
Attached: Notices posted with much enthusiasm. |
|
Thu Nov 23 13:16:56 2017, CLW, Beam energies
|
Beam energy measurements can be found in the electronic logbook for ISO-REX-HIE
https://op-webtools.web.cern.ch/elogbook/
measurements for all energies were:
E = 4.985 MeV/u. dE (FWHM)= 0.6%
E=4.715 MeV/u, dE(FWHM)=0.6%
E = 4.29 MeV/u dE(FWHM) = 0.5%
E=3.99 MeV/u .Energy spread around 0.5%.
E = 3.61 MeV/u with dE(FWHM) = 0.55% |
|
Thu Nov 16 16:24:29 2017, RG CLW MD, Run 173 Pulse Walkthrough HI n-side
|
Header: Pulser walkthrough, HI n-side, trigger on HI detector this time
Ender: Change to digital pulser to check as non-linearity was observed at low amplitudes.
====================================================
Run number : 173
Date : 16/11/2017
Start time : 17:26:17
Stop time : 17:30:37
Trigger rate (MIDAS) : 1k
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 1.6k
1- Gated : 1k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:Trigger on E detector!
==================================================== |
|
Thu Nov 16 16:14:04 2017, RG CLW MD, Run 172 Pulse Walkthrough HI n-side
|
Header: Pulser walkthrough, HI n-side
Ender: Change to digital pulser to check as non-linearity was observed at low amplitudes.
====================================================
Run number : 172
Date : 16/11/2017
Start time : 17:17:34
Stop time : 17:23:08
Trigger rate (MIDAS) : 5k
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 11k
1- Gated : 2k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:Trigger on E detector!
==================================================== |
|
Thu Nov 16 16:06:07 2017, RG CLW MD, Run 171 Pulse Walkthrough HI n-side
|
Header: Pulser walkthrough, HI n-side
Ender: negative pulser, rise time 0.05 us, fall time 1ms, delay .5 us,ref INT, width 0.5 us, Amplitude: 9 on
dial, no attenuation, in steps of 1 , 250 Hz
====================================================
Run number : 171
Date : 16/11/2017
Start time : 17:06:55
Stop time : 17:11:28
Trigger rate (MIDAS) : 5k
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 19k
1- Gated : 5k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:Trigger on E detector!
==================================================== |
|
Thu Nov 16 15:57:29 2017, RG CLW MD, Run 170 Pulse Walkthrough HI p-side
|
Header: Pulser walkthrough, HI p-side
Ender: positive pulser, fall time 1ms, delay 250 ns, 10 V in steps of 1, 250 Hz
====================================================
Run number : 170
Date : 16/11/2017
Start time : 17:00:09
Stop time : 17:05:14
Trigger rate (MIDAS) : 6400
Blocks written :
Run Scalers (approx rates)
0- Ungated : 27000
1- Gated : 6000
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
Comments: Trigger on E detector!
==================================================== |
|
Thu Nov 16 15:43:48 2017, RG CLW MD, Run 169 Pulse Walkthrough E n-side
|
Header: Pulser walkthrough, E n-side
Ender: negative pulser, rise time 0.05 us, fall time 1ms, delay .5 us,ref INT, width 0.5 us, Amplitude: 6 on
dial, no attenuation, in steps of 1 , 250 Hz
====================================================
Run number : 169
Date : 16/11/2017
Start time : 16:55:56
Stop time : 16:58:57
Trigger rate (MIDAS) : 7500
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 27k
1- Gated : 7k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
==================================================== |
|
Thu Nov 16 15:37:35 2017, RG, MD, CLW, Run 167 JUNK
|
| |
|
Thu Nov 16 15:33:24 2017, RG CLW MD, Run 168 Pulse Walkthrough E p-side
|
Header: Pulser walkthrough, E p-side
Ender: positive pulser, fall time 1ms, delay 250 ns, 6 V in steps of 0.5, 250 Hz
====================================================
Run number : 168
Date : 16/11/2017
Start time : 16:49:05
Stop time : 16:55:06
Trigger rate (MIDAS) : 7961
Blocks written : 8522
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 33k
1- Gated : 7k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Trigger on each pulser run OR between all strips of the detector to be measured.
==================================================== |
|
Thu Nov 16 15:24:42 2017, RG CLW MD, Run 166 Pulse Walkthrough dE n-side
|
Header: Pulser walkthrough, dE n-side
Ender: negative pulser, rise time 0.05 us, fall time 1ms, delay .5 us,ref INT, width 0.5 us, Amplitude: 7 on
dial, att. 5, in steps of 1 , 250 Hz
====================================================
Run number : 165
Date : 16/11/2017
Start time : 16:29:35
Stop time : 16:33:08
Trigger rate (MIDAS) : 7961
Blocks written : 5000
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 50k
1- Gated : 6k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
==================================================== |
|
Thu Nov 16 15:14:39 2017, RG CLW MD, Run 165 Pulse Walkthrough dE p-side
|
Header: Pulser walkthrough, dE p-side
Ender: positive pulser, fall time 1ms, delay 250 ns, 1.6 V in steps of 0.2, 250 Hz
====================================================
Run number : 165
Date : 16/11/2017
Start time : 16:22:02
Stop time : 16:26:11
Trigger rate (MIDAS) : 7961
Blocks written :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 90k
1- Gated : 8k
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target :
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) : -40
del_E leakage (uA) : 0.55
E voltage (V) : -350
E leakage (uA) : 2.53
E_hi voltage (V) : -14
E_hi leakage (uA) : 3.95
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
==================================================== |
|
Thu Nov 16 11:20:51 2017, RG CLW MD, Run 162 -HI det calibration
|
Header: 4alpha source - Heavy Ion detector calibration
Ender:
====================================================
Run number : 162
Date : 16/11/2017
Start time : 12:22:54
Stop time : 13:02:47
Trigger rate (MIDAS) : 1200
Blocks written : 5651
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 1194
1- Gated : 1179
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target : 4alpha source
Ladder position (mm) :
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) :
del_E leakage (uA) :
E voltage (V) :
E leakage (uA) :
E_hi voltage (V) : -14
E_hi leakage (uA) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Thresholds on amplifiers ~1mV. Forgot to note down leakage currents
==================================================== |
|
Wed Nov 15 16:24:35 2017, RG CLW, Run 160 - strip numbering E detector
|
Header: 4alpha source off center (to the top)
Ender:
====================================================
Run number : 160
Date : 15/11/2017
Start time : 17:25:25
Stop time : 17:30:14
Trigger rate (MIDAS) : 8000
Blocks written : 5469
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 23000
1- Gated : 8000
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target : 4alpha source
Ladder position (mm) : 16.92
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) :
del_E leakage (uA) :
E voltage (V) :
E leakage (uA) :
E_hi voltage (V) :
E_hi leakage (uA) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments:
==================================================== |
|
Wed Nov 15 16:05:25 2017, RG CLW, Run 159 - E detector calibration
|
Header: 4alpha source run for E det calubration
Ender:
====================================================
Run number : 159
Date : 15/11/2017
Start time : 17:01:03
Stop time : 17:24:21
Trigger rate (MIDAS) : 6700
Blocks written : 23895
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 30000
1- Gated : 9000
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Beam energy (MeV/u) :
Beam intensity (epA) :
Target : 4alpha source
Ladder position (mm) : 36.92
HI Degrader foil (um) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
del_E voltage (V) :
del_E leakage (uA) :
E voltage (V) : -350
E leakage (uA) :
E_hi voltage (V) :
E_hi leakage (uA) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Temp (Chiller) deg :
Temp (chamber) deg :
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Comments: Didn't note the leakage current, but it was all normal.
==================================================== |
|
Wed Nov 15 15:41:41 2017, RG CLW, Run 157 - EJunk
|
Header: 4alpha source
Ender:
====================================================
Run number : 157
Date : 15/11/2017
Start time : 16:42:21
Stop time : 16:46:22
Trigger rate (MIDAS) : 1450
Blocks written : 1175
覧覧覧覧覧覧覧覧覧覧覧覧覧覧覧
Run Scalers (approx rates)
0- Ungated : 1700
1- Gated : 1400
2- dE :
3- E :
4- HI :
5- Pulser :
6- Clock :
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Beam energy (MeV/u) :
Beam intensity (epA) :
Target : 4alpha source
Ladder position (mm) : 0.00
HI Degrader foil (um) :
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del_E voltage (V) :
del_E leakage (uA) :
E voltage (V) :
E leakage (uA) :
E_hi voltage (V) :
E_hi leakage (uA) :
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PA power (Up, positive) (A) :
PA power (Up, negative) (A) :
PA power (Down, positive) (A) :
PA power (Down, negative) (A) :
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Pressure (IMG1) (mbar) :
Pressure (old gauge) (mbar) :
Pressure (SEC) (mbar) :
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Temp (Chiller) deg :
Temp (chamber) deg :
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Comments:
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Wed Nov 15 14:18:30 2017, DK, Issues and problems encountered
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Objective log on perceived issues. (As a benchmark, I enumerated 17 such issues on my previous RIB experiment March 2017.)
In no particular order...
1) Sun PC:
Cannot properly connect to internet, disallowing SSH access
Important for external monitoring
Better to control DAQ from ISOLDE data room in case of ISOLDE issues
Connecting to CERN network screwed with DNS, borking local DNS hence DAQ
Double mouse clicking often skipped run numbers
2) Vacuum:
Barely acceptable, and manual gate valve leaked!
Keep in mind, interlock system showed higher than true values
44Ti requires a gas cell and vacuum load may increase considerably
(Chamber needs gas-feedthrough lines and gas-flow control system)
Cooling lines are known to leak badly
3) SSDs:
HI detector leak current increased considerably during the run
Noisy n-n sides
To be discussed
4) Scalers
Scalers were made with noisy n-n sides, making interpretation confusing
We lacked LEMO cables to provided summed p-n scalers
5) Decay halflife
A simple handheld monitor turned out to be effective for 59Cu
That won't work for 44Ti ...
6) Unused aparatus should be minimized
(Time & money)
Photodiodes
ZnS screen / camera
Manual gate valve (see above)
7) Shift plan/schedule
No definitive plan -- need pre exp. meeting
Shift schedule became arbitrary, w/ several flip/flops
RP requirements limited access to chamber
8) Shift work
Run log was made with short notice
Style may not be ideal for data analyst
Copy/paste errors et al were observed
Deadtime log was suggested to be added
(Other issues might be circumvented w/ SSH access to Sun PC)
9) Purpose
Detail & motivation of exp. was not clear to all members
10) Faraday Cup
Data taken by TIMBER system, which is better to integrate w/ our DAQ
Strange non-physical fluctuations which we like ISOLDE team to resolve
Timestamp differences of Sun PC and TIMBER PC?
11) Silena HV module
Module was found to falsely report applied bias
12) Alpha calibration / pulser walkthrough
Lacking prior to experiment owing to manpower and technical difficulties
13) Sort codes and simulations
It was common to discuss received vs. expected data w/o fast clear answer |
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