Riccardo De Maria
Riccardo De Maria
While investigating FCC lattice we found that with: ``` select, flag=makethin, class=rbend, slice = 1, thick = true; ``` An element declared with: ``` bc1: rbend,l:=lbc1 ,angle:=anglebc1 ,e1:=0 * anglebc1...
The documentation of the angle attribute is not implemented. The effect is a bit counter-intuitive ``` mm: multipole, angle=1e-20, tilt=0, knl:={1}, ksl:={0}; ! hkicker negative mm: multipole, angle=1e-20, tilt=pi/2, knl:={1},...
Currently 126 tests don't pass using `-finit-real=nan`
Using `make madx-linux64-gnu` does not work on lxplus without special paths. Using `make madx` does work instead.
Reported by Leon: With large px the vertical equilibrium emittance should not be zero due to the B component orthogonal to actual particle direction. Leon observed: - EMIT does not...
Presently tracking cannot handle SEXTUPOLE elements. They need to be transformed in thin MULTIPOLE element. Since many lattices such as FCC have thick sextupoles, it would be convenient to handle...
The present OCTAGON is defined through 2 coordinates and 2 angles. The angles are normally computed by the user and not directly available in technical drawings. It could be interesting...
In presence of crab cavities it is useful to calculate quantities similar to dispersions, but related to T-dependence. I propose to call them CX, CPX, CY, CPY. They can be...
From this example: ``` ss: sequence, l=3; mm: sbend, l=3, at=1.5,angle=0.01; endsequence; beam, particle=proton,energy=1.16; value,beam->beta; use,sequence=ss; twiss,betx=1,bety=1; ptc_create_universe; ptc_create_layout,model=2,method=6,nst=10,exact, time=false; ptc_twiss, no=2, icase=56, betx=1,bety=1, betz=1,closed_orbit=false; ptc_end; ptc_create_universe; ptc_create_layout,model=2,method=6,nst=10,exact, time=true; ptc_twiss,...