 Wed Feb 28 18:42:54 2024, Jakub Skowronski, Analysis and Shift Status 
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We have acquired the profiles for the 991 keV, 1213 keV, 1587 keV and 1799 keV resonances. The fits looks reasonably well (in the attachement). We also
get a preliminary (but very good) calibration curve (in attachment).
The beam spread from the fits seems to be close to 200 eV. The only problem we see is the stability of the beam energy: it tends to drift a bit |
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Mon Feb 26 10:14:08 2024, RSS / Dan Robertson, Beam delivery (Full Week)
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26-Feb-2024
Proton beam on Quartz target.
27-Feb-2024
28-Feb-2024 |
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Wed Feb 21 11:53:46 2024, RSS MA TD PB KL, Run Info
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DCF 2.5 MV Single ended accelerator - https://docs.google.com/spreadsheets/d/1jks2Y5VR_BGf1YwUndlmW_C43jZDB7QyLkldrHH80Bg/edit#gid=0
DCF 5 MV Tandem accelerator - https://docs.google.com/spreadsheets/d/1t1edlHz1Ib8VLhuYZccxvRvof_44Y1LJ6sL3j_olk2I/edit#gid=0 |
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Wed Feb 21 10:36:48 2024, RSS MA TD PB KL, Natural background run
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Tue Feb 20 16:16:31 2024, RSS MA TD PB, 22Na source and natural background run
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| We used a 22Na source for calibration. Attached is the calibrated spectrum. |
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Tue Feb 20 13:17:12 2024, RSS MA TD PB, Mounting at DCF
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On the ladder, Quartz was mounted on the bottom position. The bottom position (Quartz) is called target 1 at 0 mm, middle position (27Al target
on Ta backing) is called target 2 at 50 mm, and top position (27Al target on Ta backing) is called target 3 at 100 mm.
On HV supply, Channel 0 is connected to Suppressor and Channel 1 is connected to Target. |
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Tue Feb 20 13:11:54 2024, RSS MA TD PB, Vacuum & Leakage current
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Leakage current test for channel zero before pumping down:
Voltage [V] Current [nA]
500 |
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Mon Feb 19 18:26:23 2024, RSS MA TD PB , Mounting at DCF 10x
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Computer was attached to the network. Both flanges were mounted to check the fit, and everything was fine. Cooling hoses were connected and water cooling
was checked by turning on the chiller, with no leak. On the actuator flange, two Al targets were mounted on the top and the middle position of the ladder
and Quartz crystal will be mounted on the bottom position tomorrow. |
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Wed Feb 14 11:43:46 2024, Peter Ragan, Packing list
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IT:
PC, monitor, mouse, keyboard. 75m cat6 cable. 100m 2 pair fibre + 2 media converters. 2 cat5 patch leads. USB webcam. USB cables.
3x USB extensions. Spare motor driver. Extension leads |
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Fri Feb 9 13:13:28 2024, Marialuisa, Experimental Plan
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Fri Feb 9 13:12:44 2024, Konrad, Peter, Actuator control
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| Image of the cabling for the actuator, code base tested and functional. |
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Thu Feb 8 16:24:50 2024, Ragan, DAQ Parameters
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HV for NaI = + 693 V
Preamplifier: ORTEC Model 113, I/P Capacitor = 1000 pF
Amplifier: ORTEC 572, internal jumpers = x1, Gain = x1, Coarse Gain = x200, Shaping Time = 0.5 us, I/P polarity: negative, O/P: Unipolar |
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Wed Feb 7 13:11:54 2024, Ragan, Peter, Vacuum testing of the actuator flange
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| The entire setup was tested with aluminum nitride wafers instead of Sapphirine. |
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Wed Feb 7 08:21:24 2024, Ragan, Peter, Vacuum testing of the flange with water cooling
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Flange connected to the cooling system was cleaned, hoses changed, and one Faraday cup mounted and tested in vacuum. Sapphirine chip was used as an insulator.
A vacuum of 3.1E-6 mbar is achieved.
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Mon Feb 5 15:17:48 2024, Konrad, Ragan, Peter, Vacuum testing of the flange with water cooling
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Connected the flange with the cooling system in place, attached pictures represent the set up used. Currently testing for potential leaks as minimum
pressure achived is 4.0e-5 mbar
Pressure (mbar)
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Fri Jan 26 09:00:22 2024, Ragan, Shiftplan
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| https://docs.google.com/spreadsheets/d/148e5YV3PrkPvQTYykbtNmv3sZqCtmdoY-Ad0gs5dplc/edit#gid=0 |