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--- namespace:ga_notebook [2026/02/24 17:52] – [02/16-20/2026] admin
+++ namespace:ga_notebook [2026/04/17 15:57] (current) – [04/16/2026] admin
@@ Line 1: / Line 1: @@
 ======2026 Notebook=====
+====04/16/2026====
+===Trying to why the 20ns sweep window for the streak camera has the weird effect===
+ns Sweep window, at 760,350,000ps delay:\\
+Tab 'Ramp': Advanced shows TR:0 0 150 , SP:0 0 200
+ns Sweep window, at 760,500,000ps delay:\\
+Tab 'Ramp': Advanced shows TR:0 0 75 , SP:0 0 200
+ns Sweep window, at 760,713,000ps delay:\\
+Tab 'Ramp': Advanced shows TR:0 0 0 , SP:0 0 0
+ns Sweep window,\\
+Tab 'Ramp': Advanced shows TR:0 2 0 , SP:0 0 200
+us Sweep window,\\
+Tab 'Ramp': Advanced shows TR:0 9 0 , SP:0 4 0
+us Sweep window,\\
+Tab 'Ramp': Advanced shows TR:0 26 0 , SP:0 4 0
+====03/31/2026====
+Update for all the stuff that happened last week and yesterday.
+For the Students and their imaging:
+  * after some struggle to understand the magnified diffraction rings. we choose to image larger pin holes(200um, 100um, back to 50um)
+  * we found at larger pinholes, we could determine the edges better, and gain a better frame of reference as we move back to the 50um pinhole
+  * we found the focus of the 50um pinholes, and then place in a 3mm tube.
+  * with a lot of alignment, we got the exiting light at the focus and could see the diffraction and the size of the whole
+Inlite Laser Update:
+  * Gil swapped the laser head, and found it didn't have the doubling crystal.
+  * What we thought was the doubler was just a filter for the 532nm light.
+  * On Friday we used the laptop software to adjust the Eff , but to no avail.
+  * on Monday(yesterday), Chris help Gil found out the doubler was missing a Waveplate so we were actually changing any polarization
+  * Placing this WP in, 532nm spiked.
+  * Gil placed the laser onto the mounts and start the alignment through the AMP
+  * we found that the laptop will Hard Code certain value, like if Trigger is EXT or INT
+  * that needs to change with the laptop before plugging to the computer.
+  * Also, the Pointing Vector of the laser onto the Regen Crystal changes the wavelength effect, So resetting the Mazzler(Cuts off wavelength) will help.
+  * When it come to the Delays. The Pockel Delay is the Q-Switch Delay. And we don't adjust that
+  * we only should adjust the Flash Delay(near 545500ns)
+  * We adjust 1 mirror for the Inlite laser alignment and 1 WP
+  * we adjust 1 mirror for the Stretched Oscillator beam
+  *
+====03/10/2026====
+Gil got in early, and ran a Q3xQ1 runs with thick acrylic.
+im trying the same runs, but with 3.5mm step size. First set with 4mm Teflon(550keV Stopping) then 6mm teflon(700keV stopping).
+====03/06/2026====
+I ran simulations on the different quadrupoles configurations.On my personal laptop Jupyter. We physically test Quad1 with 2,1, then 3 magnets per pole, then Quad1 with 3 and Quad2 with 1 magnet. Look for the times started to know when each starts. as well as the image to know when the Quads are Flipped up or down.
+we used the Teledyne_3 (Off Brem)
+Q3xQ1: BG:295103, Strt:295104, End:295823\\
+Q3xQ0: BG:294262, Strt:294263, End:295102\\
+Q1xQ0: BG:293421, Strt:293422, End:294261\\
+Q2xQ0: BG:292307, Strt:292308, End:293420\\
 ====02/23-28/2026====
 THÉODEN = Tapered Housing Extraction Of Diverging EmissioN
+Found the Equation the relates the focal length to the a magnetic field strength and energy of the electron
+When approximating for the thin Len ray equation, you miss a factor of 1/2, where you you would have caught it if you did Busch’s theorem. Which accounts for the rotation the electron will do, which then you take the average of the movement in both the xy-plane.(adding the 1/2)
+f_Busch’s theorem = 2*f_thin lens
 ====02/16-20/2026====