9:40

DSSD bias and leakage current values:

-99.99 V

-13.0960 uA

Pulsar peak widths (ch FWHM)

aida01 ~ 97

aida02 ~ 103

aida03 ~ 134

aida04 ~ 131

aida05 ~ 22

Pretty similar to what was found yesterday

15.30

Per Elog 375

Measured FEE64 voltages are as follows

@ISOL 4 AIDA PSU   @FEE64 aida05      nominal

(top-botttom)               (right-left)

+6.05V                        +5.26V                     +5V

+6.05V                        +5.26V                     +5V

+6.05V                        +5.26V                     +5V

-6.49V                         -6.26V                      -6V

+7.78V                        +7.46V                     +7V

Adjusted PowerStax PSU voltage pots of AIDA PSU ISOL 4

@ISOL 4 AIDA PSU   @FEE64 aida05      nominal

(top-botttom)               (right-left)

+5.79V                        +4.99V                     +5V

+5.79V                        +4.99V                     +5V

+5.79V                        +4.99V                     +5V

-6.23V                         -6.00V                      -6V

+7.32V                        +7.00V                     +7V

Attatchment 1-12 = BEFORE change

Attatchment 13+ = AFTER change

Pulsar peak widths (ch FWHM) AFTER CHANGE

aida01 ~ 100

aida02 ~ 96

aida03 ~ 130

aida04 ~ 130

aida05 ~ 22

Photos of noise observed at each of the AIDA PSU outputs by digital oscillscope.

DAQ GOing with waveforms enabled.

Connection from AIDA PSU to scope by DMM test probes, twisted cabling, 3mm jack plug/BNC adaptor.

Attachment 1,2,3 =  +5V

Attatchment 4 = -6V

Attatchment 5 = +7V

Attatchment 6 shows test setup

Repeat above test with *all* cables from AIDA PSU to FEE64s disconnected, i.e. no AIDA PSU load.

Attachment 7,8,9 =  +5V

Attatchment 10 = -6V

Attatchment 11 = +7V

System checks: all ok

Attatchment 1: Rates ok

Attatchment 2: Temperatures ok

Attatchment 3: Waveform layout 7

Attatchment 4: Waveform layout 8

Attatchment 5: Waveform layout 1

Attatchment 6: Waveform layout 2

Attatchment 7: Leakage current ok

Moved pneumatic / servo for right / left arms in /out

Attachment 8: left servo fully in

9: left pneumatic in (beam is clipped)

10: left pneumatic & servo in (beam is clipped)

11: right servo in

12: right pneumatic in

13: right pneumatic & serve in

Some clear issues with strip mapping persist.

Strip map

#map strip: 01:00 left/top side, 02:00 right/bottom side (from beam view)            
stripMap    1    2                                            
stripMap    2    1                                            
stripMap    3    2                                            
stripMap    4    1                                            
stripMap    5    2
stripMap    6    1
stripMap    7    2
stripMap    8    1
stripMap    9    1
stripMap    10    2
stripMap    11    1
stripMap    12    2
stripMap    13    1
stripMap    14    2
stripMap    15    1
stripMap    16    2  

/////// UPDATE /////////

System checks: all ok - except waveform for AIDA 15 in layout 2, it has a low rate compared to others

Attatchment 14: Rates ok

Attatchment 15: Temperatures ok

Attatchment 16: Waveform layout 7

Attatchment 17: Waveform layout 8

Attatchment 18: Waveform layout 2

Attatchment 19: Waveform layout 1

Attatchment 20: Leakage current ok

/////// UPDATE //////

After beam stiring - layout of xy histograms are updated

DSSD0 and DSSD3 have the correct orientation,

DSSD1 needs to be flipped mirrored on the yaxis (i.e. right needs to be left, and left needs to be right but up and down are correct)

DSSD2 needs to be flipped on the xaxis (i.e. up needs to be down and down needs to be up but left and right are correct)

Horizontal offset in YR3 target = 9mm

Horizontal offset in YR7 target = 9mm

Horizontan offset in YR9 target = -9mm

Vertial offset in YR9 target = -8mm

Attatchment 21: Beam profile before stiring

Attatchment 22: Beam profile after stiritng - much better, hitting detectors less.

/// UPDATE ///

Mapping for the sort code has been fixed so that detectors are orientated correctly as if looking at the detectors downstream.We was missing dssdPNisX command which lets the sort code know if the PN FEEs correspond to X or Y. Correct mapping is now;

       
stripMap    1    1                                            
stripMap    2    2                                            
stripMap    3    1                                            
stripMap    4    2                                            
stripMap    5    1
stripMap    6    2
stripMap    7    2
stripMap    8    1
stripMap    9    2
stripMap    10    1
stripMap    11    1
stripMap    12    2
stripMap    13    1
stripMap    14    2
stripMap    15    1
stripMap    16    2   

Schematic layout of heaters and channel assignment attached. Table kindly provided by AK. I hope the conversion from excel to pdf didn't swallow any important information.

With the assistance of Oemer and Davide all of the M22 bolts removed from the downstream section of the CARME chamber. To separate the downstream section from the 
upstream sections it was necessary to use a lever between M10 bolts screwed into the lift points of adjacent sections of the CARME. The upstream sections were then 
lifted from the support frame and placed on the shipment crate base. The open ports of the CARME chamber sections were covered by Al foil.

Attachments 1-3 show downstream section following removal of upstream sections of CARME chamber. Note staining/residue top and bottom right - attachments 2 & 3.

22:05

The energy is changed to 247.4 V.

Read back value is 246.849 V.

Right arm at 64.60 mm

Left arm IN at 36.54 mm

horizontal beam position 8.75 mm

vertical beam position  -5mm

Beam intensity 4.0e+7 particles.

Run is R67. Target temperature is 36..6 K.

Values of E1 is 820 Hz, 2.4A, 8.69e-2 mbar,  2.55e+11/cm2. The pressure is slowly increasing since this afternoon. The recent value is E1 is 820 Hz, 2.4A, 9.0e-2 mbar,  3.28e+11/cm2

Systen checks all OK

Attachments

13.39 DSSSD bias & leakage current OK

FEE64 temps OK

ADC data item stats OK

per FEE64 Rate spectra

Merger, TapeServer et

 data file R65_11

DSSSD bias & leakge current log

CARME DSSSD motion control

16:20

DSSD bias and leakage current values:

-99.99 V

-13.2535 uA

Pulsar peak widths (ch FWHM)

aida01 ~ 100

aida02 ~ 103

aida03 ~ 128

aida04 ~ 133

aida05 ~ 22

Pretty similar to what was found in august https://elog.ph.ed.ac.uk/CARME/377