Status |
ExpNbr |
Date |
Author |
Type |
Category |
Target-Source |
Subject |
| Pending | e744 |
Thu May 24 06:53:12 2018 |
e748 | RUN | General | N/A | run #446 CATS trigger |
|
| Pending | e744 |
Fri May 25 13:08:44 2018 |
e748 | OTHER | Software | N/A | CSH is broken |
| Someone change the .cshrc file this morning this morning at 11h30. None of the alias worked anymore. |
| Pending | e744 |
Sat May 26 13:22:08 2018 |
Francois | BEAM | General | | problem with CSS1 |
There is a leakage of water in cavity north of cyclotron CSS1. I discussed with Alain Savale.
There are 2 options:
1) We take the beam as it is, probably deteriorated, with a lower intensity. There is a risk of break up in CSS1. The vacuum of the cavity is maintained probably by a small piece of ice only.
2) They can make a new setting of CSS1, using only one acceleration cavity (south). They would stop the north cavity and reduce the water pressure. In this case the beam is also deteriorated.
Decision:
We chose option 1 and we will observe the stability of the vacuum in CSS1 in time. If the stability is bad, vacuum too bad, later in the day they will decide to go to option 2. This means several hours without beam (may be a few hours). |
| Pending | e744 |
Sun May 27 15:36:31 2018 |
François | BEAM | Social | | News updated |
19H
They succeeded to get 90 % transmission with CSS1 but the energy at the exit was changed by 4%, that is not compatible with the CSS2 limit of 1 %. After fitting the CSS1 energy they obtained 70-80 % transmission only, but it is enough. The problem with the HF of CSS2 was solved. They are trying to accelerate with CSS2. They are now at midway inside CSS2. They still need several hours to finish the work.
15H
The problem with CSS1 is not yet solved. They want 90% transmission of the beam in CSS1, they have 75%.
There is another problem, the HF of CSS2 has dysfonctionnements.
They don't expect beam before 20H. |
| Pending | e744 |
Mon May 28 16:14:29 2018 |
François & Valérie | MUST2 | General | N/A | Cooling system |
Monday 28th 16h10: we refill the cooling system for MUST2. The level should be ok for the rest of the experiment.
(Around 4 days). |
| Pending | e744 |
Wed May 30 15:26:40 2018 |
Francois Marlete | BEAM | General | | problem with beam |
| 14H00 : The primary beam was misaligned, they are still working on it. No 14O beam. |
| Pending | e738 |
Wed Jul 11 06:29:00 2018 |
e748 | CATS | General | Cryo-LH2 | CATS2 status |
CATS2 current fluctuates a lot and has increased up to 0.26uA in run 340
In run 340 I observe that a second wire is missing, which is new (see attached file for run 339 and run 440) |
| Attachment 1: run_340_cats.png
|
|
| Attachment 2: run_339_cats.png
|
|
| Ongoing | e748 |
Tue Jun 6 17:57:07 2017 |
Valérian et François | EXL | Hardware | | Hardware coupling of EXL with MUST2 |
EXL seems to fit in Adrien's setup. We still have to check if it fits in the chamber. |
| Attachment 1: EXL_MUST2_top.png
|
|
| Ongoing | e744 |
Mon Mar 26 15:07:06 2018 |
e744 : Valerian et Louis | MUST2 | Hardware | 3-alpha | Energy vs Strip for T6 et T7 |
Weird signal on StripX of T6... might be the copper oxyde projections making a short-circuit
EDIT 27/03/18 : The problem seen on Telescope 6 might be due to either some Asics Problem, or due to some dirt, the current reason in not known currently. The safest way would be to remove the telescope completely and replace it for Daisuke's and Olivier's experiments. |
| Attachment 1: StripXE_vs_StripNbr_T6.pdf
|
|
| Attachment 2: StripXE_vs_StripNbr_T6_zoom.pdf
|
|
| Attachment 3: StripYE_vs_StripNbr_T6.pdf
|
|
| Ongoing | TEST |
Tue Mar 27 10:47:39 2018 |
e744 : Valerian | MUST2 | Hardware | 3-alpha | Choice of DSSSDs |
|
| Ongoing | e744 |
Tue Mar 27 11:11:04 2018 |
e744 : Valerian | MUST2 | Hardware | 3-alpha | Choice of DSSSDs |
| Different plots of Strip channel vs Strip number for X and Y in order to make our choice |
| Attachment 1: StripXE_vs_StripNbr_T1.pdf
|
|
| Attachment 2: StripYE_vs_StripNbr_T1.pdf
|
|
| Attachment 3: StripXE_vs_StripNbr_T3.pdf
|
|
| Attachment 4: StripYE_vs_StripNbr_T3.pdf
|
|
| Attachment 5: StripXE_vs_StripNbr_T4.pdf
|
|
| Attachment 6: StripYE_vs_StripNbr_T4.pdf
|
|
| Attachment 7: StripXE_vs_StripNbr_T5.pdf
|
|
| Attachment 8: StripYE_vs_StripNbr_T5.pdf
|
|
| Attachment 9: StripXE_vs_StripNbr_T6.pdf
|
|
| Attachment 10: StripYE_vs_StripNbr_T6.pdf
|
|
| Attachment 11: StripXE_vs_StripNbr_T7.pdf
|
|
| Attachment 12: StripYE_vs_StripNbr_T7.pdf
|
|
| Attachment 13: StripXE_vs_StripNbr_T8.pdf
|
|
| Attachment 14: StripYE_vs_StripNbr_T8.pdf
|
|
| Ongoing | e744 |
Tue Mar 27 17:22:24 2018 |
e744 : Valerian | MUST2 | Hardware | 3-alpha | Choosing the DSSSDs |
We can see that the DSSSDs on T1(CsI) T3(CsI) T4(CsI) and T5(SiLi) are in good shape (cf :Bidim for T1 T3 T4 T5 T6 T7 T8 ).
As for now, we would like to keep the telescope as is. M2C should be moved tomorrow (28/03/18).
After that we would like to use the two spare DSSSDs available on both T2 and on the O degree telescope (now called T5(CsI)).
If the spare DSSSDs are judged not be good enough for the experiment, we will swap current T5(SiLi) DSSDs on the 0 degree Telescope T5(CsI). |
| Ongoing | e744 |
Wed Mar 28 13:21:32 2018 |
e744 : Valerian | MUST2 | Hardware | 3-alpha | Choosing the DSSSDs |
| e744 : Valerian wrote: | We can see that the DSSSDs on T1(CsI) T3(CsI) T4(CsI) and T5(SiLi) are in good shape (cf :Bidim for T1 T3 T4 T5 T6 T7 T8 ).
As for now, we would like to keep the telescope as is. M2C should be moved tomorrow (28/03/18).
After that we would like to use the two spare DSSSDs available on both T2 and on the O degree telescope (now called T5(CsI)).
If the spare DSSSDs are judged not be good enough for the experiment, we will swap current T5(SiLi) DSSDs on the 0 degree Telescope T5(CsI). |
Which telescope should we take for T5? T7 or T6? |
| Ongoing | e744 |
Wed Mar 28 16:35:01 2018 |
e744 : Valerian | MUST2 | Hardware | 3-alpha | Choosing the DSSSDs |
| e744 : Valerian wrote: |
| e744 : Valerian wrote: | We can see that the DSSSDs on T1(CsI) T3(CsI) T4(CsI) and T5(SiLi) are in good shape (cf :Bidim for T1 T3 T4 T5 T6 T7 T8 ).
As for now, we would like to keep the telescope as is. M2C should be moved tomorrow (28/03/18).
After that we would like to use the two spare DSSSDs available on both T2 and on the O degree telescope (now called T5(CsI)).
If the spare DSSSDs are judged not be good enough for the experiment, we will swap current T5(SiLi) DSSDs on the 0 degree Telescope T5(CsI). |
Which telescope should we take for T5? T7 or T6? |
Looking at the previous Calimero tests Adrien did during his experiment, neither telescope are good as is... the T7 has no time calibration and T6 might have some Asics problem...
We can either use T6 and check if the problem we saw on it's DSSDs are due to some electronics problem or use a completly different telescope from the spare we have...
EDIT 29/03/18 : After discussion with Laurent the option to use a new DSSD on T6 seems more appropriate, still ongoing. |
| Attachment 1: TimeMust2X_MUVI2_uncalib.png
|
|
| Attachment 2: TimeMust2Y_MUVI2_uncalib.png
|
|
| Attachment 3: SpectresMUVI2stripXT300ns.png
|
|
| Ongoing | e744 |
Tue Apr 3 15:30:49 2018 |
e744 : Valérian | MUST2 | Hardware | | Cabling of T6 & T7 |
After checking the cable of T6 & T7 it seems that there were in fact an inversion during experiment e748. T6 is the bottom one, and T7 the top one.
During e748, it seems that there were some difference regarding the position, between the hardware and software position...
If it was the case, it would mean that it is T6 that has the time calibration problem, not T7.
re-
In conclusion, it is T6 that has both the time calibration problem on X and Y, and the weird signal seen during the calibration.
EDIT 4/04/18 : For the experiment e748 and before the time calibration, the inversion had been made, as a conclusion what was previously stated is wrong, it is T7 that has no time calibration... Anyhow, wee will re-do the time calibration for T6 and T7 to check if the problem are still present. |
| Attachment 1: Inversion_between_telescopes.pdf
|
|
| Ongoing | e744 |
Wed Apr 4 17:49:05 2018 |
e744 : Valérian | EXL-PPT | Hardware | | Update on EXL |
| The EXL detector has been mounted, it is very close to the target ~4cm and doesn't do any shadow on the M2 telescopes. But it isn't at 90° anymore. The cable have been plugged-in (cf photos). With a new mapping of the detector (cf drawing). |
| Attachment 1: 20180404_113303.jpg
|
|
| Attachment 2: 20180404_113312.jpg
|
|
| Attachment 3: 20180404_135324.jpg
|
|
| Attachment 4: 20180404_135334.jpg
|
|
| Attachment 5: EXL_cables.pdf
|
|
| Attachment 6: Mapping_of_EXL.pdf
|
|
| Ongoing | e744 |
Tue Apr 17 17:36:37 2018 |
Cherry Mx Team | MUST2 | Software | N/A | GRU SUCKS |
Pretty much today's summary in the title.
https://i.pinimg.com/originals/a8/d4/12/a8d41206e8bd9c189397fb4907656981.jpg |
| Ongoing | e744 |
Thu Apr 26 19:37:24 2018 |
Valerian and Freddy | MUST2 | Hardware | N/A | Debug of Must2 telescopes |
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. |
| Attachment 1: debug_mm_telescopes.pdf
|
|
| Attachment 2: Problem_on_T5_T6_cable_swap.pdf
|
|
| Ongoing | e744 |
Sat Apr 28 10:17:22 2018 |
Valerian and Iulian | MUST2 | Hardware | 3-alpha | Status of MUST2 telescopes 27/04/18 |
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). |
| Attachment 1: Third_good_run_Energy_and_time_for_5_Must2_detectors_2018-04-27_19-32-23.png
|
|
| 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 |
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.
|