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% \subtitle{}
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% \institute[ANL/IIT]{Argonne National Laboratory\\Illinois Institute of Technology}
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- \title [May 2018]{Beam Studies }
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+ \title [May 2018]{Preparations for TBA }
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\author [N.Neveu]{{\Large Nicole Neveu}}
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\institute [ANL, IIT] % (optional, but mostly needed)
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{ Illinois Institute of Technology \\
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\end {frame }
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\begin {frame }
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- Steps to accomplish TBA:
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- \vspace {1em}
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+ \frametitle {Beam Studies}
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+ To accomplish TBA:
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+ \vspace {0.5em}
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\begin {itemize }
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\item Kicker test
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- \item Prepare of optimization, compare to simulations:
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+ \item Comparison of beam measurements to optimized simulations
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\item Phase test
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- \item Quad comparison
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- \item Optimize:
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- \item Quad parameters
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+ \item Quad settings comparison
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\item Septum test
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\item Power Measurements
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\end {itemize }
@@ -162,26 +161,59 @@ \section{Kicker Test}
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\begin {frame }
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\frametitle {Kicker Test}
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Verify what kicker voltage gives correct deflection.
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- This check will depend heavily having a manageable beam size entering the kicker.
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- If beam is scraping, measurement will not be clear.
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+ This check will depend heavily on beam size entering the kicker.
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+ If beam is scraping, measurement will not be clear. Then,
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+ preliminary upstream work would be required.
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+ \vspace {0.2em}
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- \vspace {0.5em}
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- Measurements:
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+
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+
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+ \end {frame }
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+
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+
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+ \begin {frame }
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+ \begin {itemize }
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+ \item Kicker gap = 40 mm
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+ \item $ \sigma _x \approxeq 1.4 $ mm
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+ \begin {itemize }
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+ \item With no phase control
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+ \item Full size 8.4 mm
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+ \end {itemize }
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+ \item Deflection exiting the kicker = XXX mm
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+ \end {itemize }
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+ \begin {minipage }{0.45\textwidth }
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+ \centering
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+ \includegraphics [width=\textwidth ]{/home/nicole/Documents/thesis_code/tba_traj/XoffsetVsEnergy}
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+
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+ \end {minipage }
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+ \begin {minipage }{0.45\textwidth }
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+ \centering
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+ \includegraphics [width=\textwidth ]{/home/nicole/Documents/thesis_code/tba_traj/AngleVsEnergy}
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+ \end {minipage }
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+ \centering
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+ *Black line indicates $ 2 ^{\circ }$ kick
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+ \end {frame }
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+
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+ \begin {frame }
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+ \frametitle {Kicker Test}
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+ Goal: Enter and exit kicker without scraping and achieve good beam quality.
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+ \vspace {1em}
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+
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+ Measurement Steps:
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\begin {itemize }
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- \item Verify energy and beam size upstream of kicker. If not scraping go on, else go back to adjust upstream settings.
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- \item Verify quad settings
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+ \item Verify energy and beam size upstream of kicker.
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+ \begin {itemize }
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+ \item i.e: quad settings give correct beam size.
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+ \item Leave YAG before kicker in until beam size is correct.
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+ \end {itemize }
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+
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\item Step voltage up on kicker and measure
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deflection (angle) for several settings.
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- Take measurements on scanning slit.
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+ \item Take measurements on scanning slit after kicker .
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\item Beam size on all possible YAGs.
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- \item Measure energy after kicker.
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+ \item Measure energy before and after kicker.
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\end {itemize }
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-
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- Add estimate of kicker deflection****.
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- Add nominal beam size, nominal beam enregy, kicker aperture, kicker voltage.
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- Add table of kicker voltage vs. deflection.
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\end {frame }
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-
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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\section {Phase Control }
@@ -190,19 +222,18 @@ \section{Phase Control}
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Test Liu's phase scan program.
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Two linacs at a time if possible.
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Take corresponding energy measurements to verify phase.
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- Important for minimization of emittance into tba section.
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+ \vspace {1em}
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+
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+ Goal: Minimize emittance and maximize energy into tba section.
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\vspace {1em}
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Measurements:
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\begin {itemize }
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- \item Phase
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- \item Energy
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- \item Beam size on all possible YAGs
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- \item Low and high charge if possible
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+ \item Phase (via Lui's program)
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+ \item Energy - compare to simulation for various phases
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+ \item Record beam size on all possible YAGs
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+ \item Do above bullets for low and high charge if possible
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\end {itemize }
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-
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- \vspace {1em}
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- Goal: Minimize emittance and maximize energy
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\end {frame }
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% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -211,7 +242,9 @@ \section{Quad Comparison}
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\begin {frame }
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\frametitle {Quad Comparison}
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Compare focusing strengths of quads to simulations.
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- Important for initial beam size into kicker.
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+
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+ \vspace {1em}
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+ Goal: Achieve desired beam size at entrance of kicker.
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\vspace {1em}
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Measurements
@@ -223,8 +256,12 @@ \section{Quad Comparison}
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\item Low and high charge if possible.
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\end {itemize }
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- ** Add a slide of quad settings vs. beam size.
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- Add a table*****
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+ \end {frame }
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+
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+ \begin {frame }
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+ \frametitle {Quad Comparison}
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+ ** Add a slide of quad settings vs. beam size.
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+ Add a table*****
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\end {frame }
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@@ -233,20 +270,19 @@ \section{Power}
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\begin {frame }
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\frametitle {Power Measurements}
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Gun - Solenoid scan indicates energy is not matching. \\
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- Linac - No documentation of gradient/power in linac tanks.
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- \vspace {1em}
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+ Linac - No documentation of power/energy gain in each linac tank.
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+ \vspace {0.5em}
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Goal: Redo measurement of power in gun and linacs (only the 2 with calibration numbers).
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- Use pick up probe and cross check with bi-directional coupler as in Eric's thesis.
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\vspace {1em}
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\begin {itemize }
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\item Power measurements from rf pick ups using power meter.
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- \item Record traces from bi-directional coupler?
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- \item Energy measurements
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+ \item Record gun traces from bi-directional coupler (Eric's thesis)
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+ \item Energy measurements gun alone, add linacs.
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\end {itemize }
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- Have procedural backup slide
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+
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\end {frame }
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@@ -268,6 +304,19 @@ \section{Power}
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\section {Backup }
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+ \begin {frame }
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+ \frametitle {Kicker Run Plan}
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+ \begin {itemize }
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+ \item
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+ \end {itemize }
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+
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+ \end {frame }
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+
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+ \begin {frame }
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+ \frametitle {Power Measurements Run Plan}
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+ Have procedural backup slide
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+ \end {frame }
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+
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\begin {frame }
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Equipment and people needed for each experiment.
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\end {frame }
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