Ongoing, e744, Thu Apr 26 19:37:24 2018, Valerian and Freddy, MUST2, Hardware, N/A, Debug of Must2 telescopes 
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Today we found different problems, no time on T4 and no signal on T5 and T6 CsI tripping. After changing cables and a lot of tests with the chamber open and only the BT ON, T4 and T5 problems seemed to be fixed.
The CsI of T6 is still tripping but it will have to be tested with the chamber closed.
For a more precise explanation see the pdf in attachment. |
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Ongoing, e744, Sat Apr 28 10:17:22 2018, Valerian and Iulian, MUST2, Hardware, 3-alpha, Status of MUST2 telescopes 27/04/18
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Yesterday night we tested T1, T2, T3, T4, T5, and T6.
All telescopes (except T6 which still have a "tripping" CsI) have an Energy and Time signal on X and Y!
Joined is the final results with every working telescopes.
T5 is now placed in 0 degree chamber cabled with the cables corresponding to telescope 5, except the BT which is the one from the unused T7
(BT for telescope 5 didn't work). |
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Ongoing, e744, Sat Apr 28 13:27:26 2018, Valerian and Iulian, MUST2, Hardware, 3-alpha, multiples runs with two alpha source on T1 T2 T3 T4 and T5
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For the following runs we will use two 3 alpha sources :
On T1, T2, T3, and T4 : 11615 : Flux = 1496 alpha in 2 pi
On T5 (at 0 degrees) : 11616 : Flux = 1603 alpha in 2 pi
runs #170 - #181 were debugging runs.
Issue were found :
- T6 gives a lot of ORD with or without HV ON.
- If a stop is added to MUVI2, there is an energy shift of the alpha peaks. This behaviour can be seen in run 172.
run #182 is a good run. With both 3 alpha sources and no stop on any of the MUVI cards.
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Ongoing, e744, Sat Apr 28 13:36:52 2018, Valerian and Iulian, OTHER, Software, N/A, Problem with DAS configuration
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There is an issue with the GMT slave. When you click Online and then apply write hardware, if the message : register error on GMTSlave appear, reload a functioning DAS config and do not write hardware twice.
If you use write hardware twice, the error will disappear, but almost no triggering of the GMT will occur. |
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Pending, , Sat Apr 28 21:12:55 2018, iulian, MUST2, General, 3-alpha, Run 182 end ; problem with cooling
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RUN 182 start @13h
Stoped @ 21H
3alpha run
Problem with cooling of M2 in M2C. Looks like the debit reduced in time: retour no longer as cold as entrance.
Removed the HVs but mantain cooling to test. |
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Fixed, e744, Sun Apr 29 20:37:58 2018, Francois, CATS, General, , Chronogram
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Fixed, e744, Mon Apr 30 20:38:21 2018, iulian, RUN, General, 3-alpha, 6run 186 3a source 60 co source
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run #186
start@11h 30/04
stop @ 20h40
trigger T1-T5+EXL+PPT |
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Fixed, e744, Mon Apr 30 20:42:34 2018, iulian, RUN, General, 60Co, run 188 60 co source
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run #188 60co source EXL+PPT trigger
Started @20h42 30/04
Stopped @10h37 01/05 |
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Fixed, e744, Tue May 1 10:47:41 2018, iulian & valerian, RUN, General, 60Co, run 189 60 Co source
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run #189 60co source EXL+PPT trigger
Changed the way of codding PPT. for this run ppt is coded with the QDC using first dynode.
Started @10h48 01/05
stopped @8H55 02/05 Francois |
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Fixed, e744, Wed May 2 18:11:59 2018, Iulian Marlenne Louis, RUN, General, 3-alpha, 3 alpha test
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Run191 start 18h stop 18h10
Run ok, saved config DAS with good polarity on the thresholds CSI & piedestal allignement on MM1-MM5 |
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Ongoing, e744, Thu May 3 08:50:17 2018, François, VACUUM, General, , stop vacuum
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turbo pumps stopped at 8H45
problem with the cooling system of the M2C chamber, the liquid was in the pipe but it was stopped, no flow, with a lot of "dusts" (vert de gris) => decision = we purge the pipes and the cooling system, once again ! |
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Fixed, e744, Thu May 3 15:04:03 2018, Iulian Marlenne, MUST2, Hardware, N/A, X and Y possitions on the detector
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Telescope 1 : PCB 5 (ref on pcb: 2274)
Telescope 2 : PCB 4
Telescope 3 : PCB 7
Telescope 4 : PCB 11 (ref on pcb: n°2834-9)
Telescope 5 : PCB 2 (ref on pcb: X2489-8) Placed in the 0° chamber
Telescope 6 : PCB 6 placed at 180° compared with the beam direction
------------------------ ------------------------
X1/Y1 X2 / \ Y2 Y1/X1
Y2 / \ X2
4 / \ 1
/ \
/ \
/ \
/ \
----------------- -----------------
----------------- x -----------------
\ BEAM /
\ /
\ /
3 \ / 2
\ /
X2 \ / Y2
X1/Y1 Y2 \ / X2 X1/Y1
------------------------ ------------------------
----------------------
| |
| | Detector 5
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| |
| x |
| Beam |
| Y3 |
| Y2 |
| X2 X1/Y1 |
---------------------- |
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Fixed, e744, Thu May 3 15:20:16 2018, Iulian Marlenne, MUST2, Hardware, N/A, X and Y possitions on the detector
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Telescope 1 : PCB 5 (ref on pcb: 2274)
Telescope 2 : PCB 4
Telescope 3 : PCB 7
Telescope 4 : PCB 11 (ref on pcb: n°2834-9)
Telescope 5 : PCB 2 (ref on pcb: X2489-8) Placed in the 0° chamber
Telescope 6 : PCB 6 placed at 180° compared with the beam direction
------------------------ ------------------------
X1/Y1 X2 / \ Y2 Y1/X1
Y2 / \ X2
4 / \ 1
/ \
/ \
/ \
/ \
----------------- -----------------
----------------- x -----------------
\ BEAM /
\ /
\ /
3 \ / 2
\ /
X2 \ / Y2
X1/Y1 Y2 \ / X2 X1/Y1
------------------------ ------------------------
----------------------
| |
| | Detector 5
| |
| |
| x |
| Beam |
| Y3 |
| Y2 |
| X2 X1/Y1 |
---------------------- |
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Ongoing, e744, Thu May 3 19:11:14 2018, Valerian Marlene and Francois, MUST2, General, 3-alpha, run 3 alpha T5
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run #196
3 alpha source and pedestals supressed
Trigger T5 only |
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Fixed, e744, Fri May 4 11:20:50 2018, Valerian, MUST2, General, 3-alpha, T5 : 0° telescope
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After increasing the voltage on T5 DSSD from 80V to 100V the resolution increased from ~40keV sigma to 20keV sigma.
StripX vs StripY bidim and the 3 alpha peaks are joined to this entry. |
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Fixed, e744, Fri May 4 23:58:07 2018, iulian, RUN, General, 3-alpha, Run #203 alfa source & 60co source
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run #203
alpha source & 60co source
start 23h56
stop 11h07 |
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Ongoing, e744, Sat May 5 11:14:33 2018, Iulian & Valerian, RUN, General, 3-alpha, run #204 alpha source
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run #204
alpha source
start @11h15 05/05
stop @15h16 06/05
Cooling stopped on T5, the cooling system was beeping with a LLL error, I started it again but it stopped with this error again... I stopped the BT and HT on T5.
One of the BT was tripping. I looked at the DAS, but the temperature seemed Ok... but I have no idea if they reflect well the reality...
I join to this entry screenshots :
- the CAEN 1527 terminal
- the das of MUVI2 channel 1 X&Y
- the vigru screen updated
- The LLL error
After calling Francois and Laurent Menager, I refilled it with alcool from the blue containers. It seemed to be working again. |
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Fixed, e744, Sun May 6 17:52:21 2018, Valerian, RUN, General, 3-alpha, Run #205 T1 T2 T3 & T4
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run #205
T1 T2 T3 & T4 T5 still in trigger but no HT/BT
start @15h43
stop @17h52 |
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Ongoing, e744, Sun May 6 17:55:05 2018, Valerian, OTHER, General, 3-alpha, Update on the cooling system problem 6x
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After waiting for 1-2 hours. I started the BT again on T5 no tripping BT anymore. While writing hardware with DAS T5 responded well.
After starting the HT, i started a new run :
run #206
start @18h02
stop @18h15
the spectrum seem OK.
In both cooling systems the levels are still good, did we refilled the 0 degree cooling system since the beginning?
The vacuum is @ 9.1e-6 in M2C and 2e-5 in 0 degree chamber.
I then left the cooling ON, but stopped both HT and BT on every telescopes.
I join with this entry screenshots of :
- T5 spectra
- BT&HT current before stopping
- DAS window for X&Y |
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Fixed, e744, Mon May 7 10:42:58 2018, Valerian, OTHER, General, 60Co, Update on the cooling system and run gamma (signal problem on PPT)
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Today, both cooling system are working fine and their levels are OK.
The vacuum are 7e-6 mbar in M2C and 2e-5 in the 0 degree chamber.
I start a new gamma run :
run #207
trigger : EXL + PPT
start @10h44 07/05/18
stop @11h14 07/05/18
No signal on PPT. EXL OK.
I join to this entry a screenshot of EXL HT and EXL + PPT spectra
I start a new gamma run :
run #208
Bad run
run #209
trigger : EXL
start @11h21 07/05/18
stop @17h44 9/05/18 |
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