ir8 crossing , view from top, an example
DESCRIPTION
IR8 crossing , view from top, an example. beam1. outside of LHC. fixed ext /2 = -100 urad. inside of LHC. zoom on spectrometer bump. net /2 = (-270-100) urad = -370 urad. B spect points down PC = positive Sometimes called the “good” polarity. int /2 = -270 urad. - PowerPoint PPT PresentationTRANSCRIPT
3-sep-2010 CERN Massimiliano Ferro-Luzzi
1
IR8 crossing , view from top, an exampleIR8 crossing , view from top, an example
inside of LHC
outside of LHC
zoom
on
spec
trom
eter
bum
p
fixedext /2 = -100 urad
int /2 = -270 urad
net /2 = (-270-100) urad = -370 uradBspect points downPC = positiveSometimes called the “good” polarity
Bspect points downPC = positiveSometimes called the “good” polarity
int /2 = +270 urad
net /2 = (270-100) urad = +170 urad
Bspect points upPC = negativeSometimes called the “bad” polarity
Bspect points upPC = negativeSometimes called the “bad” polarity
beam1beam1
LHCb Bspect