Courtesy Nik Kurz, JG has installed a PEXARIA5 PCIe card adjacent to CARME - BuTIS single-mode fibre input
and HDMI output to root MACB input for distribution to the other MACBs and FEE64s.

The PEXARIA5 card provides equivalent functionality to the VETAR2 VME module that we have used to date. 

Further information https://www.gsi.de/fileadmin/EE/Module/EXPLODER/pexaria5_14.pdf 

Cooling water ON 

Via Anydesk startup MIDAS and FEE64s

Power ON
DSSSD HV OFF ( not required for WR test )

FEE64 temperatures OK - attachment 1

All system wide checks OK

Info code 4 & 5 stats OK - attachments 2 & 3

10:48:46 WR timestamps OK - attachment 4

         Timestamp (ns) converted to (s) corresponds to 09.49.22 GMT 6.3.24 which appears to be correct

11.00 Power OFF

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

10.32

CARME chamber 5.8e-12mbar (see attachment 1)
Backing 1.6e-08mbar (Edwards vacuum cart w/RGA)

CARME temps - see attachment 2

All SAES D2000-10 & UHV1400 NEG power OFF
All SAES D2000-10 ion pump OFF
Gate valve open

11.01

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012/5019  4-8e-11
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

11.04

CARME chamber 5.7e-12mbar
Backing 1.7e-08mbar (Edwards vacuum cart w/RGA)

12.12

CARME chamber 5.3e-12mbar
Backing 1.7e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 & UHV1400 NEG power OFF
Gate valve open
All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

All ion pumps now stabilising wrt V/I/pressure

log (pressure) versus time - see attachment 3

16.00

CARME chamber 4.9e-12mbar - see attachment 4
Backing 1.7e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 & UHV1400 NEG power OFF
Gate valve open
All SAES D2000-10 ion pump ON - see attachment 5

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

All ion pumps now stabilising wrt V/I/pressure

CARME temps - see attachment 6

Observing pressure transients from 5e-12mbar to c. 6-7e-12mbar which recover in c. 5-10 minutes 

21.00 CARME chamber 4.7e-12mbar

16.55 CARME IE514 8.2e-11 mbar

      Vacuum pressure increased slowly overnight from c. 6e-11 mbar yesterday to c. 8e-11 mbar today following low power startup tests of the bakeout controller heating 
the CARME interaction and detector chambers yesterday and today.


Attachment 1 - bakeout controller config courtesy Anton Kalinin

Attachments 2 & 3 - bakeout controller summary displays and CARME bakeout monitor display c. 17.00 today

The 3x CARME heaters are connected to controller #4 zones # 1-3, i.e. lower right display, zones 1-3, mains fuses F9-F11

17.30 3x ( of 4x ) SAES D-2000 ion pump controllers ( SIP modules ) switched off. Fourth controller was already switched off and SHV cable disconnected from rear panel of 
SIP module.

10.39

CARME XHV chamber pressure 6.0e-12mbar
Backing 2.1e-08mbar (Edwards vacuum cart w/RGA)

CARME temps - heaters OFF - chamber at ambient 
temperature

All SAES D2000-10 & UHV1400 NEG power OFF
All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

Gate valve open

attachment 1 - analog RGA scan (as found this am)

attachment 2 - scan mode 

c. 11.15

AH partially closes gate valve using c. 2 bar air pressure

VCARME XHV chamber pressure increases c. 7e-9mbar immediately

attachment 3 - RGA scan - no obvious change in RGA trends!

attachments 4 & 5 - VAT valve indicators - upper (partially open/closed) and lower (closed)

11.33 CARME XHV chamber pressure 6.6e-9mbar
Backing 2.2e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

All SAES D2000-10 ion pump OFF

11.40 CARME XHV chamber pressure 5.64e-9mbar

11.46 CARME XHV chamber pressure 5.01e-9mbar
No change in RGA trends!

12.01 CARME XHV chamber pressure 3.78e-9mbar
No change in RGA trends!

12.11 CARME XHV chamber pressure 3.10e-9mbar

12.42 CARME XHV chamber pressure 1.81e-9mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.20 CARME XHV chamber pressure 1.06e-9mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.36 CARME XHV chamber pressure 8.93e-10mbar
Backing 2.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

13.59 CARME XHV chamber pressure 7.07e-10mbar
Backing 2.5e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

14.00 Leybold turbo OFF - decelerating

14.30 Leybold turbo OFF - decelerating - 466Hz
CARME XHV chamber pressure 5.62e-10mbar
Backing 2.1e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

14.40 1x SAES D2000-10 ion pump switched on briefly - settles in c. 10s - pressure < 8.9e-
12mbar
All 4x D2000-10 ion pumps OFF

15.01 Leybold turbo OFF - decelerating - 125Hz
CARME XHV chamber pressure 4.78e-10mbar
Backing 1.4e-08mbar (Edwards vacuum cart w/RGA)
No change in RGA trends!

15.10 Abrupt increase in RGA trends - see attachment 6
Leybold turbo OFF - decelerating - 60Hz
CARME XHV chamber pressure 4.53e-10mbar
Backing 2.6e-08mbar (Edwards vacuum cart w/RGA)

15.19 4x SAES D2000-10 ion pumps ON
RGA record 04.24.00 

15.24 see attachment 7 - RGA transient recovering - turbo stopped?

15.10 Leybold turbo OFF - stopped - 0Hz
CARME XHV chamber pressure 4.40e-10mbar
Backing 1.1e-08mbar (Edwards vacuum cart w/RGA)

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

16.10 VAT gate valve partially closed
Leybold turbo OFF - stopped - 0Hz
CARME XHV chamber pressure 3.88e-10mbar
Backing 9.8e-09mbar (Edwards vacuum cart w/RGA)
RGA traces recovered to pre-transient levels and stable

All SAES D2000-10 ion pump ON

#  V/V       presssure/mbar
1  5012      < 8.9e-12
2  5012      < 8.9e-12
3  5012      < 8.9e-12
4  5012      < 8.9e-12

      Replace AIDA ASIC mezzanine of aida01

13.43 DSSSD bias & leakage current OK - attachment 1
      ambient temperature 16.5 deg C

      FEE64 temperatures OK - attachment 2

      All system wide checks OK 

      WR timestamps OK - attachment 3

      ADC data item stats OK - attachment 4

      per FEE64 Rate spectra - attachment 5
       c. 10 strips (of 1024) not producing data
       most missing strips are from aida05 - misaligned or damaged adaptor PCB?

      per p+n FEE64 1.8.L spectra - attachment 6
       aida01 pulser peak width 75 ch FWHM
       common x/y scale => peak height proxy for peak width

      per n+n FEE64 1.8.L spectra - attachment 7
       aida01 pulser peak width 70 ch FWHM

      per FEE64 1.8.W spectra - 20us FSR - attachments 8-11

Summary

All FEE64s appear to be working (except aida05 which has c. 8 missing channels) with pulser - which 
validates the FEE64, ASICs and adaptor PCB.

Electronic noise c. 50keV FWHM for aida01 & aida03 - other FEE64s better/worse.

Preamplifier noise appears to be similar for all FEE64s which may suggest an issue with the test signal chain

Note
1) e-target is starting up
2) have identified some instances of poor CARME cable management/routing see https://elog.ph.ed.ac.uk/CARME/545



EG&G Ortec 448 Pulser
Amplitude 50,000
Normalise 5.00
x5 attenuator IN
t_r 100ns
tau_d 50us
Polarity +
Frequency relay line (50Hz)

Cooknell SA1 Summing Amplifier
inverted output to test - daisy chain

Current ASIC settings saved to 2024Apr24-14.14.03


14.48 Pulser OFF
 
      All histograms & stats zero'd

      LEC slow comparator 0x64 -> 0xff
      HEC fast comparator 0x2 -> 0x5

      background alpha run to validate signal path from DSSSD to FEE64 adaptor PCB

22.18 Start Merger & TapeServer - attachments 12-14

      DSSSD bias & leakage current OK - attachment 21
      ambient temperature 16.0 deg C


      FEE64 temperatures OK - attachment 15

      WR timestamps OK - attachment 16

      ADC data item stats OK - attachment 17

      per FEE64 Rate spectra - attachment 18

      per p+n FEE64 1.8.L spectra - attachments 19-20

Connected Leybold Ionivac IE514 to Leybold Combivac CM52 Vacuum Gauge Controller

Rear panel - power ON

POST checks OK

Change parameters by

select PARA

select <-> to display Sen

select PARA to display S-on

select <-> to display HAnd

select PARA and hold for 7s

select CH to select CH3

select -> hold for 2s 

With CARME gate valve closed for c. 24h CARME chamber pressure is 6.43e-5mbar @ 13.34, 6.52e-5mbar @ 14.15


15.45 CARME Leybold turbo restarted

16.06 1.58e-6mbar, 3.5e-5mbar (RGA station), leak rate 3.6e-10 mbar.l/s

16.27 9.44e-7mbar, 3.3e-5mbar (RGA station), leak rate 3.6e-10 mbar.l/s

16.39 7.67e-7mbar

17.00 5.85e-7mbar, 2.5e-5mbar (RGA station), leak rate 2.60e-10 mbar.l/s

17.20 4.83-7mbar, 2.3e-5mbar (RGA station), leak rate 2.17e-10 mbar.l/s

Baking octagon moved into position along with the bottom insulation and heaters
 

Assorted screenshots of the CARME, CRYRING and gas jet target control systems in operation

Attachment 1 - detector motion controls

Attachment 2 - gas jet target pressures (blue proxy for target density, red proxy for gas load to CRYRING)

Attachment 3 - Schottky probe monitor of beam

Attachment 4 - CRYRING controls monitor

Attachment 5 - CRYRING vacuum pressures

Attachment 6 - CRYRING beam position and profile monitor 

CAEN N1419ET remote control via carme-gsi and nnrpi1 - see https://elog.ph.ed.ac.uk/CARME/472

15x ( of 16x ) AIDA power cables available, labelled #1 - #15, installed

16x ( of 16x ) RJ45 Cat 6 network cables available, 15x labelled #1 - #15

16x ( of 16x ) HDMI cables available, labelled #1 - #16

Attachments 1 & 2 - 2x SAES D-2000 re-fitted to side ports
                    all 4x SAES D-2000 now re-fitted to chamber

Will now fit 1x turbo and blank (currently) unused turbo port.

Attachments 3 & 4 - centre 2x78 pin micro-D feedthrough has some pins slightly bent - can probably be safely bent back into position 

ALWAYS check 78-pin feedthroughs for bent/broken pins before fitting connectors/cabling

Attachment 5 - currently unused turbo port

Attachments 6 & 7 - turbo port from above and side

Attachment 8 - turbo + NW16/NW25 adaptor + NW25 s/s hose + scroll pump + turbo controller + CMS52 gauge controller

Note we currently do not have a vent valve or backing line vacuum gauge (both functions provided by leak detector at STFC DL).

09.45 Found CARME electrical power off

      Reset power switch of distribution box to on
      Reset fuse of 19" rack extender board

      One of the SIP power modules may be faulty - others switch on OK


14.00 Checked coolant water flow OK

      Transferred Netgear 24 port Gbit switch from AIDA (S4) to CARME (YR09)

      Re-connected FEE64 RJ45 network cables
      Re-connected nnrpi1 RJ45 network cable
      Re-connected RJ45 network cable (yellow) to bottom left connector of YR09 patch panel 
      
      @CRYRING user control rooms

      Connected RJ45 netwwork cable (yellow) from bottom left connector of patch panel (labelled "1-2->YR10" and "3-4->YR10") to CARME server carme-gsi p4p1 port


Retarted HttpdTcl servers on nnrpi1 and carme-gsi.

Normal 5x FEE64 power up

All system wide checks OK

FEE64 temperatures OK - attachment 1

ASIC settings 
 slow comparator 0x64

Pulser running through aida01-05
Detectors not biased -> lot of noise aida01-04

AIDA stats - attachments 3 & 4

aida05 pulser width ~150 channels FWHM, normal settings, shaping time 8us - attachment 4

See attachments 2-4

Tried changing ADC control register to 0xf in local controls tab -> stops waveform producing data -> no effect on pulser width (slight increase to 160 chn)
fast comparator blanked off (enable disable mask in discriminator control) -> no effect on pulser width
aida05 was ungrounded -> grounded aida05 to the same ground as aida01-04 -> pulser width reduced to 46 chns
Set ADC control register back to 0x0 -> waveforms back -> pulser width reduced to 24 chns
Changed shaping time from 8ms to 1ms -> pulser width increased to 67 chns -> changed back to 8ms shaping time -> returns to 24 chn width
Changed shaping time from 8ms to 2ms -> pulser width increased to 52 chns
Changed shaping time from 2ms to 4ms -> pulser width decreased to 33 chns

10.54 23.2.24 Bias OFF

Water cooling has been connected to the FEE's. Flow meter installed to outlet manifold by way of two right angled pieces. No leaks observed rom any points in the coolant loop, loop will be bled using taps tomorrow. Water turned OFF overnight. 

FEE's powered up with the MAC addresses of each read. 1 is the very bottom FEE and 8 the very top. FEE's have also labelled with the MAC addresses.  

1. 0xd8 0x80 0x39 0x42 0x0d 0x0c  

2. d8:80:39:41:d8:2b

3. d8:80:39:41:d0:05

4. 0xd8 0x80 0x39 0x41 0xd7 0xc2  (Now AIDA 5 see elog 185)

5. 0xd8 0x80 0x39 0x41 0xb4 0x0b (Now AIDA 4 see elog 185)

6. d8:80:39:41:d8:20

7. 0xd8 0x80 0x39 0x41 0xb4 0x16

8 .0xd8 0x80 0x39 0x41 0xd7 0xcd  

MACB firmware has been updated by Nic

One ion pump showed the warning 'arcing' (see attached photo) and was subsequently turned OFF. Most likely cause is the cable was moved during installlation of the flow meter as the pump showed no error this morning. The pump was turned back ON, no error observed -> cable not damaged but sensitive to movement.   

Split funnels were given to Oemer for cleaning. Have received them back after lunch.

Valve support is installed again (see picture 1).

Ion pump was connected but not activated. Michael will help in doing so. No vacuum support to help will RGA. Will proceed without it.

Neg and ion cables were labeled (see pictures 2 and 3).

Chamber was vented using nitrogen.

At 19:10 the vacuum has increased suddenly everywhere in the ring, roughly a factor 1.5.

The analog readout of the Combivac controller for the IE514 ion gauge has been set up, readings are plotted to http://web-docs.gsi.de/~lestinsk/vacplot.php. Readings and plot should be updated every minute.

Attached are the plotted curves from vacuum and heater temperature (actual and set values from ISOHEAT controllers) during the bakeout process. Channel assignment as per post 433.

To test the detectors, adaptors were installed on the feed through flanges. A negative bias voltage was applied in steps of 10 V from 0 to 150 V. The V-I plots are attached for the four detectors. Three detectors - top right, top left, and bottom left (in the direction of the beam) - are fine. For the bottom right detector (in the direction of the beam), the current was fluctuating and was considerably high (1st test). The adaptors connecting to this detector were removed and checked by applying the bias voltage which showed zero current for voltages ranging from 0 to - 150 V, confirming the adaptors to be fine. They were then exchanged by other adaptors and the V-I test was repeated again (2nd test) with fluctuating and high current values. One of the flanges connecting to this detector was found to be light-tight. These tests were done at an ambient temperature of 21 degrees. Also, we couldn't find the rest of the three SHV to 2x Lemo 00 cables for the detector HV.

Today, the foil was opened, the pins on the bottom right detector were checked and looked fine, the right-hand arm was moved a bit in and then out, and the foil was tightly closed again. The negative bias voltage was applied from 0 to 50 V in steps of 10 V. During the measurement, the lights in the cave were switched off to ensure no leakage current from the light*. The results are shown in Attachment 1. To condition the detector, it was left at a negative bias voltage of 50 V for ~ 3 hours with lights on. No increase in current was seen (see Attachment 2), indicating the chamber was nicely covered with foil. Then the negative voltage was increased from 60 V to 150 V in steps of 10 V. No large current readings, like yesterday, were seen today (see Attachment 3). The detector was then left at -150 V for ~ 30 minutes with the current to be nearly stable with fluctuations in the range of 70-100 nA. The foil was then taken off to check if there are any dust particles on the detector surface. As can be seen in Attachment 6, some dust particle was found at the bias/multi-guard ring (MGR) boundary structures of the DSSSD. The area was then nicely cleaned with isopropanol + lab tissue wipe (see Attachment 7) and the chamber was covered with aluminum foil again. The negative bias voltage was applied from 0 to 150 V in steps of 10 V again and the results can be seen in attachment 5, indicating the response of the detector to be normal, unlike yesterday. Before calling the day off, the detector was left at -150 V overnight.

* Every time, before switching off the lights, it was checked that no one else was in the cave.

Since yesterday evening, the bottom right detector was at -150 V. In the morning, the current was quite stable ~ 6.77 uA. The bias was switched off, the foils opened, both of the detector arms were moved in and out three times, and the chamber was tightly covered again. A negative bias voltage was applied from 0 to 150 V in steps of 10 V one by one to all four detectors, and the V-I results can be seen in Attachments 1-4. All detectors seem to be fine. The variation of the current with time at a constant bias voltage of -150 V was checked for all detectors and the results are in Attachments 5-8. Also, with an applied bias voltage of -150 V to the bottom right and left detector, the detector arms were moved in and out three times which showed a variation of 1-2 nA and 1 nA in the leakage current. For further conditioning of the bottom right detector, it is again left with a negative bias voltage of 150 V over the weekend.