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=== July 10th 2012 ===




| Run | time | run conditions | comments |
| 760 | 12:30 | pedestals| ch 0,1,2 with PMTs|
| 761 | 12:40 | LED | HV on |
| 762 | 13:00 | LED | HV on, change timing|
| 763 | 18:35 | electrons  but not  to chamber | HV 900V|
| 764 | 19:15 | electrons  but not  to chamber | HV 500V|
| 765 | 19:45 | electrons  but not  to chamber | HV 500V, ch0 light tight, flanges darkened|
| 766 | 19:57 | electrons  but not  to chamber | HV 500V, ch0 light tight|
| 767 | 19:57 | electrons  but not  to chamber | HV 500V, ch0 light tight, dt=150|
| 768 | 19:57 | electrons  but not  to chamber | HV 500V, ch0 light tight, dt=250|
| 769 | 20:21 | electrons  but not  to chamber | HV 500V, ch0 light tight, dt=50, magnet on|
| 771-781 | 22:31 |problems after powercut| trigger timing changed |
| 782 | 0:21 |electrons in chamber|HV 500V, all light tight, dt=50, B=0 |
| 783 | 0:21 |electrons in chamber|HV 500V, all light tight, dt=50, B=0.45|

=== July 11th 2012 ===

HW changes:
  1) the second stage of the dual timer has been replaced by a Stanford for reliable and reproducible setting.
  2) all five channels have been equipped with PMT+Electronics
  3) the chamber of the spectrometer has been connected with the interaction region (i.e. the glass window removed)
  4) a lead collimator has been inserted between the gas jet and the spectrometer
  
Plan of the day:
  A) scan in integration time to find the best timing [with small magnet in]
  B) scan in HV to equalize gains [with small magnet in]
  C) spectrum with B=0 and B>0 (with small magnet out, having subtracted the common background)
  
  

|Run | time | run conditions | comments |
|789 | 15:47 |No Beam HV on ch 0-4 500 V | pedestals|
|790 | 16:22 |No Beam HV on ch 0-4 900 V | pedestals|
|793 | 16:22 |electrons  | HV=500V. EM Noise is Back!|
|794-797| 17-18| Trigger Test|the trigger doesn't works|
|798| 19:38|T (signal splitting) removed from trigger |the trigger works|
|799|19:44|HV = 0V, laser+plasma|Electronic noise|
|800|20:00| HV=0, laser+plasma, reinforce grounding|
|801|20:04| try HV=500 but impossible to take data|
|804|22:50| HV=700 PMT 0, HV=0 PMT 1-4|saturation on PMT 0|
|805|22:52| HV=600 PMT 0 1 2, HV=0 PMT 3 4|now verify that noise on PMT0 increases with num of connected cards|
|806|23:26| HV=600 PMT 0 1 2, HV=0 PMT 3 4|only card 1 is connected, with the attenuator|
|807|23:36| HV=600 PMT 0 1 2, HV=0 PMT 3 4| B=0.45T|
|808|23:47| HV=600 PMT 0 1 2, HV=0 PMT 3 4| B=0.45T, card 1 2 3 are connected with attenuators|
|809-814| 23:59|HV=600 PMT 0 1 2, HV=0 PMT 3 4| B=0, scan in time reveals that t=0 is the best -->anticipate trigger|
|816-821| 24:10|HV=600 PMT 0 1 2, HV=0 PMT 3 4| B=0, scan in time: best timing dt = 100 ns|
|822|24:27|HV=550 V PMT 0, HV=600 PMT 1 2, HV=0 PMT 3 4| B=0|
|823|24:30|HV=550 V PMT 0, HV=600 PMT 1 2, HV=0 PMT 3 4| B=0|
|824|24:37|HV=500 V PMT 0, HV=600 PMT 1 2, HV=0 PMT 3 4| B=0|
|825|24:37|HV=OFF| B=0|
|826|24:41|HV=900 PMT 0 1 2| B=0|
|827|24:45|HV=900 PMT 0 1 2, dt=0| B=0|

=== July 12th 2012 ===
Investigated noise problem. Disappears by using screened cable for DY12

|Run | time | run conditions | comments |
| 829|13:29 |hv 800 ch 0,1,2 |B=0 |
| 830|13:32 |hv 900 ch 0,1,2 |B=0 |
| 831|13:35 |hv 800 ch 0,1,2 | B=0 magnete flame in|
| 832|14:10   |hv 500 ch 0,1,2 | B=0 magnete flame in remove attenuators|
| 833|14:15   |hv 600 ch 0,1,2 | B=0 magnete flame in remove attenuators|
| 834-852|15:33   |hv 600 ch 0-4 | trigger problems|
| 853-858|16:40   |hv 600 ch 0-4 | time scan|
| 859-870|16:45   |hv 500 ch 0-4 | time scan|
| 871-872|17:30   |HV scan to equalize| establish that HV={580,550,500,480,480}. Found that last two cables are swapped |
| 873 | B>0| turn on magnet. Hv default.| Elettroni deviati!!!|
| 874 | B>0 | magnet ON. HV default |  costanti di calibrazione Offline C=(1.2,1,1.5,1.1,1.4)|
| 875 | B>0 | HV def | Collimatore: 2 blocchetti 5 cm Pb dopo la finestra con 2 mm separazione: 40 mrad * 100 cm --> dx=4 cm |
| 876 | B=0 | HV def  | Collimatore; B ramping down? | 
| 877 | B=0 | HV def  | Collimatore | 
| 878 | B=0 | HV def  | Collimatore | 
| 879 | B=0 | HV def  | Collimatore chiuso; scambiati canali 3 e 4 che erano invertiti; C=(1.2,1,1.5,1.4,1.1) | 
| 882 | B=0 | HV def  | Collimatore chiuso | 
| 883 | B=0 | HV def  | Collimatore chiuso; Flame Magnet IN; Use for Ped File | 
| 884 | B=0 | HV def  | Collimatore aperto 2mm; Flame Magnet OUT; usb problem at the end| 
| 885 | B=0 | HV def  | Collimatore aperto 2mm; Flame Magnet OUT| 
| 886 | B=0 | HV def  | Collimatore aperto 1cm; Flame Magnet OUT| 
| 887 | B=0.5 T | HV def  | Collimatore aperto 1cm; Flame Magnet OUT| 
=== July 13th 2012 ===

Debug of spectrometer trigger. Problems with upper part of logic unit, replaced with lower part. Dual timer removed, veto implemented with Stanford D signal set to 500 mus. Delay and width of trigger button revised, set to 500 mus. Missing alignment with photocatode.


=== July 18th 2012 ===
Pedestal studies

| 896 | 12:21| HV off| Only maroc 0 board+cable; no laser|
| 897 | 12:26| HV off| Only maroc 0 board+cable; no laser| RMS 12 cts |
| 899 | 12:26| HV off| Only maroc 0 board no cable; no laser; improved trigger cable| RMS 1.5 cts |

Giulietto Felici works on electronics to improve grounding and box.

=== July 25th 2012 ===

test electronics with new shielding

| 900 | 10:37| pedestals| 5cards but no cables; RMS 1-2 ADC|
| 901 | 10:40| pedestals| 5cards cable #0 in; HV off; RMS ~6 for first 43 channels, 10-18 for the others |
| 902 | 10:44| pedestals| 5cards cable #0 in; HV=900V; RMS ~6 for first 43 channels, 10-18 for the others |
| 903 | 10:52| LED run| 5cards cable #0 in; HV=900V |
| 904 | 14:26| pedestals| 5cards all cables in; HV=0V |
| 905 | 14:29| pedestals| 5cards all cables in; HV=default |
| 905 | 14:29| pedestals| 5cards all cables in; HV=default -- high stat |