BCTDC 4 DC Beam Current Transformers for the LHC rings, installed in LSS4R, 2 per beam, - PowerPoint PPT Presentation

Title: BCTDC 4 DC Beam Current Transformers for the LHC rings, installed in LSS4R, 2 per beam,


1
Intensity monitors in DIP for the experiments
BCTDC (4 DC Beam Current Transformers for the LHC
rings, installed in LSS4R, 2 per beam,)
e.g. 2 systems installed for redundancy in the
ring along Beam1 (when system A is on-line,
system B is off-line and vice-versa)
BCTFI (2 Beam Current Transformers Fast installed
in the LHC Injection lines)
BCTFR (4 Beam Current Transformers Fast for the
LHC Rings installed in LSS4R, 2 per beam)
e.g. 2 systems installed for redundancy in the
ring along Beam2 (when system A is on-line,
system B is off-line and vice-versa)
BCTFR (4 Beam Current Transformers Fast for the
LHC Rings installed in LSS4R, 2 per beam)
e.g.2 systems installed for redundancy in the
ring along Beam2 (when system A is on-line,
system B is off-line and vice-versa)
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Remarks - The fast BCT measures bunched
beam. - The DC BCT is a slow beam current
transformer it measures the total beam
intensity, bunched and unbunched beam alike. -
Comparison between fast BCT and DC BCT gives the
unbunched beam. this measurement will depend on
the resolution and stability of the instruments
and of their cross-calibration a lot of work
with beam will be necessary before AB/BI would be
able to give even the precision of this
measurement. - In the future the systems 'A' and
'B' will not be published anymore (except for
TriggeredIntensity) after the use of the
arbiter flag will have been implemented to
select the right publication. Arbiter flag will
be removed from the publication then.