Some pictures after the background during the nigth. The front and back side looks asymetric. To be checked again with a 137Cs source.

AIDA is in. Root file is saved, after one night.

Root: 201905241444_background_with_Aida.root

Following the instructions of CAEN, the SY2527 is working again. Some pushing, massaging appear to solve the situation

The Ba source of the red box is too strong. We can not use it. I need to identify the other one, which does not appear to be in RIBF.

The counting rate was 74 kHz in the DTAS.

Start: 10:48

Stop: 10:58

Root: 201905231058_137Cs_with_Aida.root

Comment: Aida in, source in the position as in the earlier entries. Just to check if there is any jump. No lmd, only root.

No large displacements. Det Dyn1 seems to have slightly larger statistics. The assymetry of the two sides is clear, as it should be.

Start: 17:46

Stop: 10:14 (next day)

Lmd: Background_AIDA_201905221746_075.dlt ..Background_AIDA_201905221746_081.dlt

Root: 201905231014_background_with_Aida.root

Rates: 1.6 kHz (Dyn), 1.8 kHz (Anodes)

Comments: Background with AIDA in

Individual rates at the end of the measurement (kHz), remember the source is not at the center, so we expect assymetry in the counting rates):

Dy01 0.08                   An01  0.12

Dy02 0.07                  An02  0.09

Dy03 0.08                  An03  0.11

Dy04 0.08                  An04  0.07

Dy05 0.12                   An05  0.11

Dy06 0.11                   An06  0.11

Dy07 0.08                    An07  0.10

Dy08 0.11                  An08  0.08

Dy11 0.09                   An11  0.14*

Dy12 0.08                   An12  0.09

Dy13 0.08                   An13  0.12

Dy14 0.10                   An14  0.11

Dy15  0.11                  An15  0.15

Dy16 0.12                   An16  0.11

Dy17 0.09                   An17  0.14

Dy18 0.09                   An18  0.10

Start: 17:00

Stop: 17:40

Lmd:  Co60_source_AIDA_201905221700_072.dlt ..Co60_source_AIDA_201905221700_074.dlt

Root: 201905221740_60co_with_Aida.root

Rates: 13.2 kHz (Dyn), 12.6 kHz (Anodes)

Comments: 60Co source with AIDA in, red box, CD 395 . The source is not centered. It is positioned (the center of the source) at 14.6 cm

from the beam side external edge of the frame (lower NaI numbers). The holder is touching the nose of AIDA.

The nose of AIDA is 16 cm from the external edge of the frame (down stream). In that position Si # 3 is at the center of the DTAS according to Tom.

We have to be very careful when AIDA is moved in. Some of the AIDA  flat connector cables are touching the connectors of our NaI cables.

Individual rates (kHz), remember the source is not at the center, so we expect assymetry in the counting rates):

Dy01 2.2                    An01  2.27

Dy02 0.88                  An02  0.91

Dy03 2.08                  An03  2.20

Dy04 0.87                  An04  0.86

Dy05 2.10                    An05  2.17

Dy06 0.90                    An06  0.89

Dy07 2.01                    An07  2.13

Dy08 0.93                  An08  0.93

Dy11 0.60                   An11  0.68

Dy12 0.36                   An12  0.33

Dy13 0.57                   An13  0.62

Dy14 0.35                   An14  0.33

Dy15  0.58                  An15  0.65

Dy16 0.35                   An16  0.33

Dy17 0.54                   An17  0.62

Dy18 0.32                  An18  0.31

Start: 15:55

Stop: 16:55

Lmd: Background_AIDA_201905221555_071.dlt

Root: 201905221655_background_with_Aida.root

Rates: 1.7 kHz (Dyn), 1.9 kHz (Anodes)

Comments: Background with AIDA in

Individual rates (kHz), remember the source is not at the center, so we expect assymetry in the counting rates):

Dy01 0.07                    An01  0.12

Dy02 0.07                  An02  0.09

Dy03 0.07                  An03  0.11

Dy04 0.08                  An04  0.07

Dy05 0.11                    An05  0.11

Dy06 0.10                    An06  0.12*

Dy07 0.08                    An07  0.10

Dy08 0.10                  An08  0.08

Dy11 0.08                   An11  0.14

Dy12 0.08                   An12  0.09

Dy13 0.08                   An13  0.12

Dy14 0.10                   An14  0.10

Dy15  0.09                  An15  0.16

Dy16 0.10                   An16  0.10

Dy17 0.09                   An17  0.14

Dy18 0.11                   An18  0.10

Start: 15:15

Stop: 15:50

Lmd:  Cs137_source_AIDA_201905221515_069.dlt ..Cs137_source_AIDA_201905221515_070.dlt

Root: 201905221550_137Cs_with_Aida.root

Rates: 7.5 kHz (Dyn), 7.8 kHz (Anodes)

Comments: 137Cs source with AIDA in, Source CS401, 4763. The source is not centered. It is positioned (the center of the source) at 14.6 cm

from the beam side external edge of the frame (lower NaI numbers). The holder is touching the nose of AIDA.

The nose of AIDA is 16 cm from the external edge of the frame (down stream). In that position Si # 3 is at the center of the DTAS according to Tom.

We have to be very careful when AIDA is moved in. Some of the AIDA  flat connector cables are touching the connectors of our NaI cables.

Individual rates (kHz), remember the source is not at the center, so we expect assymetry in the counting rates):

Dy01 1.1                    An01  1.2

Dy02 0.35                  An02  0.36

Dy03 0.97                  An03  1.0

Dy04 0.34                  An04  0.36

Dy05 1.1                    An05  1.1

Dy06 0.4                    An06  0.41

Dy07 1.0                    An07  1.1

Dy08 0.37                  An08  0.37

Dy11 0.27                   An11  0.33

Dy12 0.15                   An12  0.16 

Dy13 0.25                   An13  0.28

Dy14 0.15                   An14  0.16

Dy15  0.28                  An15  0.33

Dy16 0.15                   An16  0.15

Dy17 0.25                   An17  0.31

Dy18 0.16                   An18  0.15

Start: 14:32

Stop: 14:37

Source: 137Cs

Comments: Detectors show small drifts, of the order of the precision of the HV (we could apply 0.5 V corrections to align some of them, but I will not touch them now)

Dy16 looks quite off in the background measurement, but not with the Cs one !!!.

Calibrated spectra: Dy3 an An3 moved a little in the same direction, An12 looks also a little displaced.

Now I plan to measure some sources with AIDA in. It means that the sources will not be centered. The available distance from the oposite side to

the nose of AIDA is 16 cm.

Start: 20:04

Stop: 14:11

Rates: 1.8 (Dynodes) 2.0 kHz (anodes)

Start: 18:55

Stop: 20:01

Lmd: Background_201905211855_068.dlt

Root:201905212001_background.root

Rates: 1.7 kHz (Dyn), 1.9 kHz (Anodes)

Comment: all measurements of today can be used to characterize the full detector.

Sources were possitioned in the center of the spectrometer, with the piece created at Ific

Start: 17:53

Stop: 18:53

Rates: 1.8 kHz (dynodes),  1.9 kHz (anodes)

Lmd: Background_201905211753_067.dlt

Root:  201905211853_background.root

Comments: We will continue measuring, but only for a while with Listmode

Start: 16:56

Stop: 17:46

Rates: 12.6 kHz (dynodes), 12 kHz (anodes)

Lmd: Eu152_201905211656_064.dlt ... Eu152_201905211656_066.dlt

Root: 201905211746_152Eu.root

Source details: 152Eu, ID: EU401, 272, 1.06x10**4 Bq (2010/03/16), key 9

Comments:

Start: 15:49

Stop: 16:49

Lmd: Background_201905211549_063.dlt

Root: 201905211649_background.root

Rates: 1.7 kHz (dynodes) 1.9 kHz (anodes)

Comment: All measurements have been done with the pulser set to 10 Hz. We should think if this have to be increased

Start: 15:08

Stop: 15:42

Rates: 19 kHz (Dynodes), 16 kHz (anodes)

Lmd: Na22_source_201905211508_059.dlt ...Na22_source_201905211508_062.dlt

Root: 201905211543_22Na.root

Source details: 22Na, ID NA 401, 700, 1.038 x 105 Bq (2010/03/16), key 5,

It appears in the Sunflower home page as 09-7007 with an estimated activity of 8.9 Bq/s today

Comment; seems dynode 4 moved a little up. Most detectors keep a reasonable alignment

When overlay was marked, it did not save the root file. Root attached and tested

This is a short list of the identified useful sources:

60Co, key 3, red box, CD 395, already used

137Cs, key 8, 4753, CS401, activity ???, already used

22Na, key 5, 700, NA401, activity 8.9 kBq/s

152Eu, key 9, 272, EU401, activity 6.6 kBq/s

The activities are according to the Sunflower homepage. It was wrong for the Cs source which is under key 8

Start: 14:11

Stop: 15:01

Lmd: Co60_source_201905211411_055.dlt ...Co60_source_201905211411_058.dlt

Root: 201905211501_60Co.root

Rates: 13.8 kHz (Dynodes), 12.4 kHz (anodes)

Source details: Taken from the red box. No CD395, 1 mm plastic (1.23 g/cm3)

338.4 kBq (1 July 1990). Type ASSET81 to drawing VZ-477/1E

Root file tested and attached

Start: 11:34

Stop: 13:52

Rates: 1.7 kHz (Dynodes) 2.0 kHz (Anodes)

Root: 201905211352_background.root

Lmd: Background_201905211134_054.dlt

After a fantastic shower, since it is raining cats and dogs ....

Start: 10:25

Stop: 11:26

lmd: Cs137_source_201905211025_052.dl ...Cs137_source_201905211025_053.dlt

root: 201905211126_137Cs.root

Rates: 8.0 kHz (Dynodes), 8.1 kHz (Anodes)

Comment: detector  3  HV was increased by 1 V ( from 529 to 530 V). Used source CS401, 4763 as in earlier measurements.

The red box Cs source is too strong. We had 150 kHz  in the cards.

Details of the source:137Cs, 8.23x 10**3 Bq at 2010/03/16, ID: CS401, 4763

Root file attached, and tested

Start: 20:30

Stop: 09:54

Lmd: Background_201905202030_046.dlt ...Background_201905202030_051.dlt

Root: 201905210954_background.root

Root and Conf file attached