Fixed, e744, Mon Jun 4 18:45:15 2018, shumpei, MUST2, Hardware, N/A, No data for two CsIs of MUST2 
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During E744 experiment, two CsI crystals (number 1 & 10) of MM2 had no data as attached.
When the M2C chamber was opened today, I found at least connection for CsI number 1 of MM2 has a problem.
It takes some time to fix the connection for CsI, so it may be going to be fixed after some hardware problems are found in this week. |
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Fixed, e755, Thu Jun 7 09:46:47 2018, Louis, MUST2, Hardware, 3-alpha, MUST2 test
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The 8 MUST2 telescopes have been installed and pluged in final configuration. Energy signal have been tested with 2 3-alphas sources, one in front of T5-T6 and one in front of the others.
Energy signal for all telescopes looks ok exept for telescopes 5. Concidering their position with respect to the source T5 and T6 should have the same count. In fact, T5X see signal at the good energy but with two times less count than T6X. T5Y see 10 times less count than T6Y.
One can also see some noise on the middle part of T8X |
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Fixed, e755, Thu Jun 7 12:19:18 2018, Louis, MUST2, Hardware, N/A, MUST2 configuration, X1Y1 and PCB numbers
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Pictures showing the MUST2 configuration.
X and Y positions and PCB numbers are as folow are as follow:
T1, PCB5:
Y128.......X128Y1
. .
. .
.......X1
T2, PCB4:
.......Y128
. .
. .
X1.......X128Y1
T3, PCB7:
X1.......
. .
. .
X128Y1.......Y128
T4, PCB10:
X128Y1.......X1
. .
. .
Y128.......
T5, PCB6:
X128Y1.......X1
. .
. .
Y128.......
T6, PCB2:
.......Y128
. .
. .
X1.......X128Y1
T7, PCB8:
X128Y1.......X1
. .
. .
Y128.......
T8, PCB3:
Y128.......X128Y1
. .
. .
.......X1 |
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Fixed, e755, Thu Jun 7 13:54:59 2018, Louis, MUST2, Hardware, N/A, MUST2 Time
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| MUST2 time have been tested for T1 to T8 for X and Y. FAG has been delayed with 150ns and 500ns and sent as stop in MUVI 1 and 2. One can see two pics in all spectrum. All scales of TAC have been setted to 600ns. |
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Fixed, e755, Thu Jun 7 17:12:38 2018, Louis, MUST2, Hardware, 3-alpha, Calib Alpha
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Run 3028: Calib 3 alpha started at 17h05
Run3029:Calib 3 alpha started at 17h54
Config pedestals aligned. Saved in files:
E755_Tx_07062018
Temperature on ASIC:
T1X: 7 deg
T1Y: 4
T2X: 7
T2Y: 4
T3X: 6
T3Y: 3
T4X: 5
T4Y: 3
T5X: 8
T5Y: 6
T6X: 12
T6Y: 5
T7X: 5
T7Y: 1
T8X: 10
T8Y: 8
Telescopes 1 to 8 are ok for X and Y Energy and Time signal |
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Fixed, e755, Sun Jun 10 19:51:52 2018, Louis, MUST2, Hardware, 3-alpha, Calibration run
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Run3031:Calib 3 alpha started at 19h49
stoped at 9h15
Temperature on ASIC:
T1X: 7 deg
T1Y: 4
T2X: 7
T2Y: 4
T3X: 6
T3Y: 3
T4X: 5
T4Y: 3
T5X: 8
T5Y: 5
T6X: 12
T6Y: 4
T7X: 5
T7Y: 1
T8X: 10
T8Y: 8
energy resolution in X telescope 5 seems a little bit worst than for the other telescopes but cannot see some double pics effect |
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Fixed, e755, Mon Jun 11 12:50:56 2018, Louis, MUST2, Hardware, 3-alpha, Impact matrix 8x
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| Impact matrix for Telescope 1 to 8 from the run 3029 calibrated |
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Fixed, e755, Mon Jun 11 13:28:21 2018, Louis, ONLINE, Hardware, 3-alpha, Energy resolution MUST2
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Energy resolution of the 8 MUST2 telescopes from central pic of run 3029 calibrated with 3 alpha source.
T1: mean = 5.389MeV , sigma = 15.0keV
T2: mean = 5.385MeV , sigma = 15.7keV
T3: mean = 5.391MeV , sigma = 15.2keV
T4: mean = 5.418MeV , sigma = 14.0keV
T5: mean = 5.390MeV , sigma = 16.3keV
T6: mean = 5.391MeV , sigma = 14.6keV
T7: mean = 5.389MeV , sigma = 17.5keV
T8: mean = 5.386MeV , sigma = 14.7keV
Total: mean = 5.391MeV , sigma = 17.7keV |
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Fixed, e755, Wed Jun 13 11:40:18 2018, Adrien Valérian Louis, MUST2, Hardware, 3-alpha, RUN Source 4 Alpha
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run 1: 4 alpha source, without heat shield, 1 bar air inside the target cell.
Data has been taken with a 4 alpha source: 3 alpha around 5Mev plus one around 8.7MeV
On telescope 7 and 8, one can see the four alpha which are not intercepted by the heat shield. Telescope 1 to 4 see only one alpha around 2.5Mev on the border of the strips. T5 and T6 see the alpha at 2.5Mev in the center of stripX.
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Fixed, e755, Wed Jun 13 18:20:02 2018, linda, Daisuke, Louis, MUST2, Hardware, 3-alpha, Run test with heat shield
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| Run 9: heat shield added with two MYLAR foil of 2um, vacuum has been made inside target cell. 4 alpha source |
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Fixed, e755, Thu Jun 14 19:03:06 2018, shumpei, OFFLINE, Hardware, N/A, 8MeV alpha source T5&T6
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8MeV alpha source image on the target was reconstructed from T5&T6 hit position and target position information.
The target is something like 2 cm diameter collimator.
Now the center of the image is a little bit close to T6(bottom) maybe because the center of the target is placed to bottom side at room temperature since the target length will be shorten when it is cooled down. |
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Ongoing, e755, Sun Jun 17 11:12:57 2018, takeshi, TARGET, Hardware, N/A, current cooling status of the cryogenic target
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This is the temperature log of the cryogenic hydrogen target during the cooling test done last night.
The temperature of the heat shield (green line) and the cell (blue line) increased while it went the minimum values at once.
We could not try liquefying test this morning because the temperature was not enough low.
I would attach the boiling points of several gases in a vacuum. We suspect the rebound of the temperature is due to adsorption of vapour such as N2 at 20 K and H20 at 150 K. |
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Fixed, e755, Sun Jun 17 11:25:31 2018, takeshi, TARGET, Hardware, N/A, current cooling status of the cryogenic target
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This is the temperature log (temperaturelog.png) of the cryogenic hydrogen target during the cooling test done last night.
The temperature of the heat shield (green line) and the cell (blue line) increased while it went the minimum values at once.
In addition to the overall behaviour, a narrow peak was found (peak,png) in the cell temperature which anti-correlate to that of the heat shield. We consider this is due to the contact between the cell and the heat
shield.
We could not try liquefying test this morning since the temperature was not enough low.
I would attach the boiling points of several gases in a vacuum (boilingpoinnt.png). We suspect the rebound of the temperature is due to adsorption of vapour such as N2 at 20 K and H20 at 150 K. |
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Fixed, e755, Wed Jun 20 16:45:00 2018, Cherry Mx Team, TARGET, Hardware, 3-alpha, Cryo target is filled
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We dont see any alpha in detector 1-6m but we see them in detector 7-8.
Data are in run 3038 in e744 data folder. |
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Fixed, e755, Thu Jun 21 07:16:51 2018, daisuke, RUN, General, 3-alpha, RUN0039 three alpha source calibration MUST2
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| alpha source run over night. |
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Fixed, e755, Thu Jun 21 08:30:48 2018, shumpei, daisuke, RUN, General, 3-alpha, RUN0040 8 MeV source run with liquid hydrogen
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RUN 0040. started 7:23 am
8 MeV source was set upstream at 0 degrees to confirm that the target is filled with liquid. The target has been cooled since 4 pm yesterday. From the record of temperatures and pressure, it is likely that hydrogen stays in the liquid phase. It has yet to be confirmed if hydrogen inside the cell is still in liquid or partially evaporated.
target cell 18.180 K
heat shield 114.62 K
H2 gas -0.23 atm
M2C 3.09e-6 mbar
There are events in T5 and T6, but without any clusters formed at an energy of 250 ADC channels (expected energy for alpha particles that traverse hydrogen gas). Need more analysis to conclude. |
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Fixed, e755, Thu Jun 21 09:16:01 2018, Kitamura, TARGET, Hardware, N/A, Vapor pressure
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Vapor pressures of isobutane and CF4. The paramateres of the Antoine equation were taken from the following NIST
pages.
Isobutane: https://webbook.nist.gov/cgi/cbook.cgi?ID=C75285&Mask=4&Type=ANTOINE&Plot=on
CF4: https://webbook.nist.gov/cgi/cbook.cgi?ID=C75730&Mask=4&Type=ANTOINE&Plot=on
MODIFIED ATTACHMENT FILES: vertical axes were fixed |
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Fixed, e755, Thu Jun 21 16:08:32 2018, Valerian, MUST2, Hardware, N/A, Run 3045 : Calimero T1-4 X
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run 3045 :
start @ 15h35
stop @ 15h59
T1-4 X |
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Pinned, e755, Thu Jun 21 17:07:14 2018, Valerian, MUST2, General, N/A, run 3046 : Calimero T1-4Y
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run 3046 : Calimero T1-4Y
start @ 16h28
stop @ 16h53 |
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Fixed, e755, Thu Jun 21 18:52:42 2018, takeshi, TARGET, Hardware, N/A, target temperature
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Here I attached the temperature graph which is daisuke discussed at the meeting.
Both the heat shield (blue line) and the cell (green) increase after the minimum at 8 hours.
They had a second minimum at 21 hours and now they are increasing. |
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