ELOG MUGAST

MUST2 SAMURAI_2018 S3-LEB-LPC SUPERNEMO MUGAST EXPAND SCALP GALATRON HiCARI VELO

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Fixed, e786s, Fri Jun 28 18:34:35 2019, OttoRun, RUN, General, Cryo-3He, Run77

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*************************
Run : 77
*************************

Start at 2019-06-28 18:34:22.873862

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

beam back. Q pole issues still

Stop at 2019-06-29 06:14:31.307098
Stop comment:

Fixed, e786s, Sat Jun 29 01:53:24 2019, OttoRun, RUN, General, Cryo-3He, Run77

OttoRun wrote:

*************************
Run : 77
*************************

Start at 2019-06-28 18:34:22.873862

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

beam back. Q pole issues still

Beam is back, again, at 1.53, weird behavior of CATS

Fixed, e786s, Sat Jun 29 05:41:12 2019, OttoRun, RUN, General, Cryo-3He, Run77 8x

OttoRun wrote:

Beam is back, again, at 1.53, weird behavior of CATS

Fixed, e786s, Sat Jun 29 05:56:40 2019, OttoRun, RUN, General, Cryo-3He, Run77

OttoRun wrote:

Beam is back, again, at 1.53, weird behavior of CATS

After beam is back we found 350Hz on vamos focal plane, with 20kHz current. After Brho scanning we found a Brho distribution going from 1Tm to 0.4Tm. Observation of gamma rays indicates no accumulation of radioactivity in the chamber with respect to previous runs. We conclude that we may have ice layers up to 500um in the target but very in-homogeneous since we also observe 1Tm Brho. To verify maybe increase target pressure to modify the structure of the ice. CATS is tripping continuously. No VACUUM changes observed.

Fixed, e786s, Sat Jun 29 06:18:06 2019, OttoRun, RUN, General, Cryo-3He, Run78

*************************
Run : 78
*************************

Start at 2019-06-29 06:17:46.891353

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

beam back. Q pole issues still

Stop at 2019-06-29 08:57:15.767428
Stop comment:

HV of Drift Chamber in VAMOS reduced from 670V to 660V in order to avoid saturation, this will keep like that in the following.

Fixed, e786s, Sat Jun 29 09:32:52 2019, OttoRun, RUN, General, Cryo-3He, Run79

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Run : 79
*************************

Start at 2019-06-29 09:31:41.957308

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

LN filling problem solved !!!
pressure of the target slowly increasing about 800 mbar
We are filling the target to reach 1000 mbar

Stop at 2019-06-29 12:04:05.587989
Stop comment:

Fixed, e786s, Sat Jun 29 12:07:56 2019, OttoRun, RUN, General, Cryo-3He, Run80

*************************
Run : 80
*************************

Start at 2019-06-29 12:07:36.615014

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

LN filling problem solved !!!
pressure of the target slowly increasing about 820 mbar
We are filling the target to reach 1000 mbar

test cats1

Stop at 2019-06-29 13:03:26.602226
Stop comment: radioactive beam recovered

Fixed, e786s, Sat Jun 29 13:08:17 2019, OttoRun, RUN, General, Cryo-3He, Run81

*************************
Run : 81
*************************

Start at 2019-06-29 13:08:04.442155

target 700mb
Brho0=0.90 Tm
DC pressure 6 mbar
IC pressure 120 mbar
CATS2 inserted

AGATA position +51-25 mm

TRIGGER :
- CMG
- M2
- VAMOS%1000
- CATS%1000

all X on MUVI disabled from trigger
all threshold of MUVI1 at 1 MeV to avoid as much as possible noise

LN filling problem solved !!!
pressure of the target slowly increasing about 820 mbar
We are filling the target to reach 1000 mbar

test cats1

Stop at 2019-06-29 19:22:32.016536
Stop comment:

Fixed, e744s, Sat Jun 29 19:27:21 2019, OttoTime, RUN, General, N/A, TimeCalibratorRun