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--- dev:quadrupoles [2025/08/19 15:11] – created painter
+++ dev:quadrupoles [2025/09/02 03:36] (current) – harvey
@@ Line 2: / Line 2: @@
 ===Info===
-Quadrupoles are magnets that orientated in such a way that their magnetic field to produce no dipole moment. The magnetic field increases with radial distance, which can then be used to focus the beam as it travels.
+Somewhat similar to dipoles, Quadrupoles also produce constant magnetic fields that the beam passes through. However, these devices have two sets of electromagnets instead of one, hence a total of four magnets producing a field. The fields produced are stronger towards the outer edges, while the in the center become weaker, and eventually leave the center spot with no magnetic field.
+In the beamline, these quadrupoles are used to focus the beam as it travels. However, quads only focus in one plane of direction at a time. Due to this, it is typical to find a series of quads together, rather than separate, that way one quad can focus in the x direction, the next in the y, next in the x again, and so on.
 ===Tips/Notes===
 ===Location(s)===
+Quadrupoles are located throughout the beamlines of FRIB, ReA, and the K500. They are usually found in groups of two or three, called doublets and triplets respectively.
 ===PV's===
+----
+  *Shane: I'd clarify that firstly a "set" of magnets is two that have flipped polarities, and that the positioning changes where like polarities are across from each other