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ID Date Authordown Subject Text Attachments
  14   Thu Feb 22 07:58:48 2018 Thomas Chillery, Tom Davinson, Raffaele Buompane, David Rapagnani, Lucio GialanellaSetup - Beam Tuning and Prepare Chamber for Measurement at 3.0MeV 7LiOn 21/02/2018 we reattempted the beam tuning.
We expected this to be easier now the rogue
mylar is removed from the beamline.
 IMG_2738.JPG 
  10   Tue Feb 20 09:19:19 2018 Thomas Chillery, Tom Davinson, Raffaele Buompane, David RapagnaniSetup - Testing Chamber Vacuum and Mounting Detectors and Alpha Source(Note: Tom Davinson is now in CIRCE until
the 21st)

On 19/02/2018 we performed the
  
  12   Tue Feb 20 17:03:08 2018 Thomas Chillery, Tom Davinson, Raffaele Buompane, David RapagnaniSetup - Beam TuningThe pumps were left on overnight, in the
morning at 8:25 the pressure reads:

Up = 1.5e-5 mBar and Down = 4.0e-5
 IMG_2712.JPGIMG_2709.JPGIMG_2724.JPG 
  13   Wed Feb 21 10:46:22 2018 Thomas Chillery, Tom Davinson, Raffaele Buompane, David RapagnaniSetup - Pulser Settings and 20/02/2018 Pulser WalkthroughThe PB-5 Pulse Generator settings are as
follows:

Fall Time = 100us
 BKG_zoombeam1.jpg 
  28   Fri Apr 6 12:07:52 2018 Thomas Chillery, Raffaele Buomparte, David Rapagni, Jeremias DuartesTests - Attempting to solve noise issues, 15 min alpha calibrationOn 05/04/18:

At 9:00 the pressures read ~10mBar
inside the chamber (static vacuum). We began
 S2_2323-18_496um_Bias_Vs_Leakage_Current_050418.png 
  29   Fri Apr 6 13:33:27 2018 Thomas Chillery, Raffaele Buomparte, David Rapagni, Jeremias DuartesTests - Attempting to solve noise issuesOn 05/04/18, after eLog #28

After the alpha calibrationrun
Raffaele arrived and started beam tuning
  
  30   Fri Apr 6 14:54:12 2018 Thomas Chillery, Raffaele BuomparteTests - Attempting to solve noise issuesToday we started by mounting the central
and downstream preamp box lids.

The pumps were left running overnight,
  
  15   Thu Feb 22 10:40:49 2018 Thomas Chillery, Raffaele Buompane, David Rapagnani, Lucio GialanellaMeasurement / Test - 3.0MeV 7Li on CH2 Target VIIOn 21/02/2018 after beam tuning and pumping
down at 18:07 the pressures read Up = 1.2e-5mBar,
Down = 3.2e-5mBar. We were happy to power
 180221_PinDiode.png180221_S2BackStrip_ADC4CH24.png180221_S2FrontStrip_ADC2CH7.png 
  17   Thu Feb 22 18:04:12 2018 Thomas Chillery, Raffaele Buompane, David Rapagnani, Lucio GialanellaMeasurement - 3.0MeV 7Li on CH2 Target VIIYesterday (21st) night we saw this low
channel, high rate (1500Hz) noise on the
diode spectrum - see eLog entry #15.
 Nuclear_Reaction-master.xlsx180222_diode.jpg180222_ADC4CH24.jpg180222_ADC2CH7.jpgPinDiode_AlphaSpectra.jpg 
  27   Fri Apr 6 11:39:10 2018 Thomas Chillery, Raffaele Buompane, David Rapagnani, Lucio GialanellaTests - Pumping down chamber and starting electronics testsOn 04/04/18:

We mounted S2 2323-18 (496um) in
the downstream position with 12um mylar
 S2_2323-18_496um_Bias_Vs_Leakage_Current.pngS2_2623-26_505um_Bias_Vs_Leakage_Current.png20180404_Pulser_PreampLid_ON.jpg20180404_Pulser_DisconnectedFromFeedthrough.jpg 
  18   Fri Feb 23 13:15:05 2018 Thomas Chillery, Raffaele Buompane, David RapagnaniSetup - Beam Tuning and Prepare Chamber for Measurement at 3.45MeV 7Li - Night of 22ndChecking SRIM 3.5 MeV 7Li is stopped in
9.06um mylar or 10.09 um CH2.

After the long run at 3.0MeV on
  
  2   Thu Feb 15 17:34:28 2018 Thomas Chillery, Raffaele BuompaneSetup - Mounting Target Chamber SectionsThis morning both myself and Raffaele mounted
the beamline section of the target chamber.

We also mounted the turbo located
 IMG_2621.JPG 
  3   Thu Feb 15 17:45:07 2018 Thomas Chillery, Raffaele BuompaneSetup - Problem: Connecting the actuator arm to the iris aperture armAfter lunch we attempted to connect the
actuator arms to the iris arm used to change
the iris diameter. We need two iris diameters:
 ApertureAdjustmentHooks.JPGApertureArm_TwoScrews.JPGIrisArmProblemSketch.JPG 
  21   Tue Mar 6 15:29:55 2018 Thomas Chillery, Raffaele BuompaneCollecting S2 Alpha Calibration Spectra at End of February Test ShiftsOn 23/02/2018:

We moved the target ladder to position
7, 5.019mm, with the alpha source facing
 180223_Alpha_S2FrontStrip_ADC2CH20.png180223_Alpha_S2BackStrip_ADC4CH24.png 
  22   Tue Mar 6 15:41:53 2018 Thomas Chillery, Raffaele BuompanePin Diode Pulser Walkthrough at End of February ShiftsOn 23/02/2018:

After the alpha source calibration
of the S2 (See eLog entry #21) we decided
 180223_PulserWalk_PinDiode_ADC6CH31.png 
  23   Tue Mar 6 15:55:04 2018 Thomas Chillery, Raffaele BuompaneEnd of February 2018 ShiftsOn 23/02/2018:

At the end of the February 2018
shifts the detectors bias settings were:
  
  31   Thu Apr 12 12:47:04 2018 Thomas Chillery, Raffaele BuompaneCentral S2 Alpha CalibrationDate: 06/04/2018

We connected the analogue signals
of RAL X, XII, XIII, and "R" to
  
  32   Thu Apr 12 13:12:00 2018 Thomas Chillery, Raffaele Buompane7Li 5.0MeV Beam tests with Central S2Date: 06/04/2018 (after 16:40)

We powered the preamps for the
two S2 detectors and the diode.
  
  33   Thu Apr 12 14:14:09 2018 Thomas Chillery, Raffaele Buompane7Be 5.0MeV Beam test with central S2Date: 06/04/2018

Before starting this beam test
we lowered the channel thresholds on ADC
 180406_7Be_5MeV_CentralS2_BackStrip.jpg180406_7Be_5MeV_Diode.jpg180406_7Be_5MeV_CentralS2_FrontStrip.jpg 
  67   Mon Dec 3 17:51:46 2018 Thomas Chillery, Raffaele BuompanePulser WalkthroughOn 28/11/2018:

Performed pulser walkthrough, Run
# 181128090835
 182811_PulserWalkthrough.jpg 
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