Embed Size (px)
Citation preview
Th
e C
ER
N p
lan
fo
r th
e L
HC
up
gra
de
Th
e C
ER
N p
lan
fo
r th
e L
HC
up
gra
de
Luci
o R
oss
i
CE
RN
–T
E d
ep
t
Acc
ele
rato
r se
min
ar
@ F
erm
ilab
29
Jul2
01
0
Co
nte
nt
•LH
C t
od
ay,
pe
rfo
rma
nce
s a
nd
co
nso
lida
tio
n p
lan
•LH
C u
pg
rad
e:
–o
verv
iew
of
the
pa
stw
ork
–P
ha
se 1
(+
Ph
ase
2 ?
)
•LH
C-I
NJ
up
gra
de
•LH
C-I
NJ
up
gra
de
•T
he
ne
w p
lan
HL-
LHC
–C
on
cep
t
–H
ard
wa
re
–P
relim
ina
ryp
lan
•T
he
«d
efi
nit
ive
» u
pg
rad
e:
HE
-LH
C
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
2
Lum
ino
sity
tod
ay
sco
pe
0.1
fb
-1b
y 2
01
0 –
1 f
b-1
by
20
11
ca.
70
nb
-1 in
last
fill
!
�A
pp
roa
ch w
ith
hig
h b
un
ch i
nte
nsi
ty p
aid
Wo
rkto
ha
ve n
om
ina
l bu
nch
inte
nsi
tyo
f 1
.1 e
11
pp
b
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
3
�A
pp
roa
ch w
ith
hig
h b
un
ch i
nte
nsi
ty p
aid
off
(in
vest
me
nt
of
com
mis
sio
nin
g t
ime
)
�9
e1
0 p
pe
r b
un
ch
�u
p t
o 1
3 b
un
che
s (8
cro
ssin
g p
air
s/IP
)
�R
eco
rd L
pe
ak=
1.6
10
30
�Tr
yin
gto
re
sum
eth
e r
am
pa
t1
0A
/s (
tod
ay
wo
rkin
ga
t2
A/s
be
cau
seo
f n
-QP
S/P
S
inte
ract
ion
�Ye
ste
rday
firs
t m
ult
ibu
chin
ject
ion
(4
b/f
ill)
�To
day
firs
t a
tte
mp
tto
25
b (
16
Xin
gp
air
s/IP
)
Als
oth
an
ks
to y
ou
rm
ag
ne
ts…
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
4
Th
e t
wo
pro
ble
ms
of
LHC
fo
r re
ach
ing
no
min
al
pe
rfo
rma
nce
•B
ea
mE
ne
rgy:
IC j
oin
ts
lim
its
to 3
.5 T
eV
/be
am
–W
ed
o n
ot
ha
ve
an
ymo
reb
ad
SC s
plic
e:
the
wo
rst
is3
nΩ
(sp
ecs
•B
ea
mIn
ten
sity
:
coll
ima
tio
n l
imit
slu
mi
to 0
.05
-0.2
10
34
–To
day
all
soca
lled
ph
ase
1 c
olli
ma
tio
n is
inst
alle
dth
e w
ors
tis
3 n
Ω(s
pe
cs
is0
.6 n
Ω,
the
on
e t
ha
t
me
lta
way
wa
s2
20
nΩ
)
–H
ow
eve
rw
eh
ave
left
be
hin
du
s m
an
y
un
sta
bili
zed
join
ts…
1 c
olli
ma
tio
n is
inst
alle
d
–P
ha
se 2
co
llim
ati
on
ha
s
cha
nge
dd
ram
ati
call
y1
ye
ars
ag
o:
stu
die
s
po
inte
dto
th
e n
ee
do
f
colli
ma
tors
in t
he
CO
LD
reg
ion
s(D
S).
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
5
We
reco
ve
rsfr
om
he
re…
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
6
M3 line
An
d h
ere
…
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
7
Loo
kin
gb
ack
…
LHC
In
terc
on
ne
ctio
njo
ints
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
8
Mo
st li
kely
reco
nst
ruct
ion
of
the
on
e t
ha
t
me
lte
da
way
0.2
nO
hm
22
0 n
Oh
m
A7
8.R
B:
No
rma
lize
d B
us
Se
gm
en
t R
esi
sta
nce
1n
Ω
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
9
Eve
ry s
ing
le s
c sp
lice
we
re
me
asu
red
in 2
00
9
Th
e p
rob
lem
stil
lle
ft
Un
sta
bil
ize
djo
int
(sil
en
tk
ille
r)
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
10
Exi
sta
nce
of
un
fill
ed
gap
wa
skn
ow
nd
uri
ng
IC w
ork
in 2
00
6 a
nd
re
po
rte
d.
No
pro
ble
mfo
r 1
-2 m
m g
ap
…
En
d f
eb
rua
ry2
00
9 a
n e
mp
tyb
us
ba
r (2
0
m o
r m
ore
) d
isco
vere
din
a s
pa
req
ua
dru
po
leth
rou
ghγ-
ray
Th
e p
ictu
rea
bo
ve
dis
cov
ere
din
th
e t
un
ne
l in
se
cto
r3
-4 i
n A
pri
l 2
00
9.
It i
s3
0 c
nm
lon
g a
nd
it
sho
ws
an
ex
tra
re
sist
an
cea
tro
om
te
mp
era
ture
of
ab
ou
t 3
5 µ
Ω
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
11
situ
ati
on
•W
ekn
ow
we
left
be
hin
gu
nst
ab
ilze
dle
ngt
ho
f 4
0 m
m (
50
m
icro
Oh
m)
•W
em
ea
sure
dw
ell
on
ly4
se
cto
rw
arm
•O
n t
he
4 s
ect
ors
left
cold
(1
00
K)
me
asu
rem
en
tsa
re
no
isy.
A s
tati
stic
ala
na
lysi
ssh
ow
ed
tha
ta
90
mic
roO
hm
no
isy.
A s
tati
stic
ala
na
lysi
ssh
ow
ed
tha
ta
90
mic
roO
hm
(70
mm
len
gh
tu
nst
ab
ilize
d)
cou
ldn
ot
be
exc
lud
ed
•⇒ ⇒⇒⇒
run
at
3.5
Te
V/b
ea
m
•P
lan
20
12
–2
01
3 (
Ap
ril)
:
–o
pe
n a
ll 3
M li
ne
s/IC
co
nta
inin
gb
us
ba
rs;
–re
-so
lde
r th
e 1
0-1
5%
de
fect
ive
join
t o
ne
s(e
xpe
rie
nce
)
–fi
xth
e s
tab
ilit
yo
n A
LL I
C j
oin
t b
y m
ea
ns
of
a c
op
pe
rsh
un
t
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
12
Th
e f
ixto
cu
re u
nst
ab
ilit
y
Ma
kin
gth
e s
hu
nt
(re
du
nta
nt!
)M
ak
ing
a b
ox
fo
r la
tera
lre
stra
int
an
d v
ert
ica
l co
nta
inm
en
t)
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
13
Wil
l w
ere
ach
7 T
eV
? D
ipo
letr
ain
ing
…
•In
pri
nci
ple
4 q
ue
nch
es/
day
wit
h2
-4 s
ect
ors
go
ing
in p
ara
llel
wa
sfo
rese
en
for
tra
inin
g in
th
e d
esi
gn
: sa
ya
tle
ast
10
q
ue
nch
/day
for
HW
C.
•W
em
igh
th
ave
exp
ect
ed
less
tha
n1
00
qu
en
che
sto
re
ach
no
min
al b
ase
do
n b
est
pro
toty
pe
s +
pre
seri
es
dip
ole
s(2
00
0-
20
02
)2
00
2)
•A
na
lysi
sd
on
ee
xpe
rie
nce
7 T
eV
ba
sed
on
an
aly
sis
of
20
05
-07
in
dic
ate
dth
at
we
sho
uld
ha
ve e
xpe
cte
d2
50
•R
e-a
na
lysi
s(s
ee
(E.
Tod
esc
o a
tC
ha
mo
nx
20
10
), o
f th
e s
am
ea
cce
pta
nce
test
da
ta,
po
ints
to
40
0:
ab
ou
t 4
0 d
ay
so
f H
WC
.
•H
ow
eve
rH
WC
da
ta,
ext
rap
ola
ted
fro
mo
ne
se
cto
ro
nly
ind
ica
tes
ab
ou
t 8
00
!
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
14
Act
ua
lre
sutl
sin
sin
gle
te
st (
all
)
an
d i
n t
he
LH
C H
WC
fo
r se
cto
r5
-6 o
nly
9
10
11
12
Current (kA)
Firm1
Firm2
Firm38.3 T, 7 TeV
7.7 T, 6.5 TeV
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
15
89
0.0
0.5
1.0
1.5
2.0
Quenches per magnet 89
1011
12
020
40
60
80
Current (kA)
First quench number
Firm1
Firm2
Firm3
Firm2 HC
Firm3 HC
5-6: Montecarlo vs hardware commissioning
�1
00
qu
en
che
sto
6.5
Te
V
�2
50
qu
en
che
sto
6.7
5 T
eV
�5
00
-80
0 t
o 7
Te
V!
Inte
rim
Co
llim
ati
on
20
13
1.
Co
llim
ati
on
up
gra
de
in
IR
3 d
isp
ers
ion
su
pp
ress
ors
to
ca
ptu
re p
loss
es
du
e t
o s
ing
le-d
iffr
act
ive
sca
tte
rin
g a
nd
to
ca
ptu
re io
n lo
sse
s (r
em
ove
s h
igh
est
pre
dic
ted
an
d h
igh
est
me
asu
red
loss
).
2.
Co
llim
ati
on
up
gra
de
in
IR
3 w
arm
in
sert
ion
(1
0 v
ert
ica
l co
llim
ato
rs
ad
de
d)
to a
dd
fle
xib
ility
fo
r re
loca
tin
g lo
sse
s fr
om
IR
7 t
o I
R3
(SE
E
limit
ati
on
s).
3.
Pre
pa
re w
ork
fo
r 2
01
5/1
6 c
olli
ma
tio
n u
pg
rad
es.
3.
Pre
pa
re w
ork
fo
r 2
01
5/1
6 c
olli
ma
tio
n u
pg
rad
es.
Ga
in:
Ho
pe
to
re
ach
no
min
al i
nte
nsi
ty a
nd
up
to
ha
lf n
om
ina
l lu
min
osi
ty.
Low
er
com
ple
xity
. Sm
alle
r h
ori
zon
tal i
mp
ed
an
ce.
Hig
he
r cl
ea
nin
g e
ffic
ien
cy.
Pri
ce t
o p
ay:
Tw
ice
la
rge
r ve
rtic
al i
mp
ed
an
ce,
ad
dit
ion
al l
oss
sp
ike
in
IR
5 a
nd
hig
he
r lo
sse
s a
t te
rtia
ry c
olli
ma
tors
.
IR3
up
gra
de
is a
n e
xce
llen
t st
ep
fo
rwa
rd b
ut
no
mir
acl
e s
olu
tio
n.
Ra
lph
Ass
ma
nn
16
Fu
ll C
oll
ima
tio
n 2
01
61
.C
oll
ima
tio
n u
pg
rad
e i
n I
R7
an
d I
R2
dis
pe
rsio
n s
up
pre
sso
rs t
o
cap
ture
plo
sse
s d
ue
to
SD
sca
tte
rin
g a
nd
to
ca
ptu
re io
n lo
sse
s.
2.
Inst
all
ati
on
of
ad
va
nce
d c
oll
ima
tors
(m
ost
ly in
to p
rep
are
d e
mp
ty
slo
ts)
to a
llow
no
n-d
est
ruct
ive
an
d v
ery
fa
st c
olli
ma
tor
setu
p,
com
pa
tib
le w
ith
LH
C s
tab
ility
an
d s
ma
ll β
* (
0.5
5m
).
SLA
C v
ery
mo
tiva
ted
to
pa
rtic
ipa
te t
o c
on
stru
ctio
n,
“re
ga
rdle
ss o
f th
e t
ech
no
log
y c
ho
sen
fo
r th
e s
eco
nd
ary
coll
ima
tors
to
be
in
sta
lle
d”
(e-m
ail
ass
oci
ate
la
b d
ire
cto
r B
. H
ett
el)
.co
llim
ato
rs t
o b
e i
nst
all
ed
” (e
-ma
il a
sso
cia
te l
ab
dir
ect
or
B.
He
tte
l).
3.
Co
llim
ati
on
up
gra
de
in
IR
1 a
nd
IR
5fo
r lu
min
osi
ty-i
nd
uce
d lo
sse
s fr
om
co
llisi
on
s (i
nst
all
4 a
lre
ad
y p
rod
uce
d C
u c
oll
ima
tors
).
4.
Co
llim
ati
on
up
gra
de
in
IR
2fo
r Z
DC
acc
ep
tan
ce is
sue
. E
AR
LIE
R?
??
5.
Re
mo
te h
an
dli
ng
an
d a
ir b
yp
ass
op
era
tio
na
l in
IR
7.
6.
Ad
dit
ion
al
tun
gst
en
ab
sorb
ers
in
IR
6 d
um
p p
rote
ctio
n s
yste
m t
o
imp
rove
loca
l cle
an
ing
.
Ra
lph
Ass
ma
nn
17
Dis
pe
rsio
n S
up
pre
sso
r W
ork
•A
dd
ress
es
a v
ery
ba
sic
lim
ita
tio
n o
f th
e L
HC
co
llim
ati
on
sys
tem
: p
roto
ns
lose
en
erg
y w
he
n h
itti
ng
ma
tte
r, i
on
s d
isso
cia
te a
nd
fr
ag
me
nt!
•C
ou
ld n
ot
be
ad
dre
sse
d b
efo
re:
colli
ma
tio
n s
tart
ed
ve
ry la
te in
th
e
gam
e a
nd
SC
are
as
of
LHC
we
re f
roze
n.
•N
ote
th
at
this
is n
oth
ing
exo
tic:
oth
er
acc
ele
rato
rs h
ad
th
is (
e.g
. •
No
te t
ha
t th
is is
no
thin
g e
xoti
c: o
the
r a
cce
lera
tors
ha
d t
his
(e
.g.
LEP
2 a
dd
ed
co
llim
ato
rs in
to d
isp
ers
ion
su
pp
ress
ors
).
•A
so
luti
on
wit
ho
ut
ne
w S
C m
ag
ne
ts w
as
pro
po
sed
:a
llow
s co
llim
ati
on
re
ad
ine
ss f
or
no
min
al a
nd
ult
ima
te b
ea
ms
by
20
15
/6 a
t la
test
(if
we
sta
rt).
•O
the
r so
luti
on
s a
re n
ice
bu
t w
ou
ld c
om
e m
uch
la
ter
(e.g
. sh
ort
er
ma
gn
ets
wit
h c
olli
ma
tor
in f
ron
t).
�W
ha
t –
Wh
ere
–W
hy
Ra
lph
Ass
ma
nn
18
ha
lo
Ha
lo L
oss
Ma
p
Do
wn
stre
am
of
IR7
β-c
lea
nin
g
Loss
es
of
off
-mo
me
ntu
m p
roto
ns
fro
m s
ing
le-d
iffr
act
ive
sca
tte
rin
g in
TC
P
TC
RYO
-3 m shifted in s
ha
lo
Up
gra
de
Sce
na
rio
+3 m shifted in s
transversely shifted by 3 cm
cryo
-co
llim
ato
rs
NE
W c
on
cep
tw
ith
ou
t n
ew
ma
gn
ets
an
d c
ivil
en
gin
ee
rin
g
Th
e L
HC
up
gra
de
:
LHC
an
d E
U P
art
icle
Ph
ysi
cs-
Lisb
on
a2
00
6
Th
e E
uro
pe
an
str
ate
gy
fo
r p
art
icle
ph
ysi
cs
… Sci
en
tifi
c a
ctiv
itie
s
3.
Th
e L
HC
will
be
th
e e
ne
rgy
fro
nti
er
ma
chin
e f
or
the
fore
see
ab
le f
utu
re,
ma
inta
inin
g E
uro
pe
an
lea
de
rsh
ip in
th
e
fie
ld;
the
hig
he
st p
rio
rity
is
to f
ull
y e
xplo
it t
he
ph
ysi
cs p
ote
nti
al
of
the
LH
C,
reso
urc
es
for
com
ple
tio
n o
f th
e i
nit
ial
pro
gra
mm
e
Sta
tem
en
t
isp
erf
ect
ly
act
ua
lan
d
of
the
LH
C,
reso
urc
es
for
com
ple
tio
n o
f th
e i
nit
ial
pro
gra
mm
e
ha
ve
to
be
se
cure
d s
uch
th
at
ma
chin
e a
nd
exp
eri
me
nts
ca
n o
pe
rate
op
tim
all
y a
t th
eir
de
sig
n p
erf
orm
an
ce.
A s
ub
seq
ue
nt
ma
jor
lum
ino
sity
up
gra
de
(SL
HC
), m
oti
vate
d b
y p
hys
ics
resu
lts
an
d o
pe
rati
on
exp
eri
en
ce,
will
be
en
ab
led
by
focu
sse
dR
&D
;
to t
his
en
d,
R&
D f
or
ma
chin
e a
nd
de
tect
ors
ha
s to
be
vig
oro
usl
y
pu
rsu
ed
no
w a
nd
ce
ntr
all
y o
rga
niz
ed
to
wa
rds
a l
um
ino
sity
up
gra
de
by a
rou
nd
20
15
.
•1
y o
f d
ela
yin
LH
C a
nd
de
tect
or
com
mis
sio
nin
g
•2
y f
or
the
in
cid
en
t a
nd
fo
r n
ex
tsp
lice
con
soli
da
tio
n
•2
y m
ore
of
op
era
tio
nto
re
ach
~5
00
fb
-1(I
nt.
Lu
mi
pe
r y
ea
r~
50
fb
-1,
no
t 1
00
!)
act
ua
lan
d
valid
Ho
we
ver
the
da
te
mu
st b
e
shif
ted
5
yea
rs
28
Ju
ne
20
10
20
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Th
e b
ase
lin
ein
20
03
-20
06
Radiation damage limit
~700 fb-1 Pa
pe
r o
f J.
Str
ait
et
al.
PA
C2
00
3
Ne
ed
of
cha
ng
e in
20
13
-1
5.
Ma
in h
ard
wa
re:
•H
F Q
ua
dru
po
lem
ag
ne
tsfo
r 1
3-1
5 T
Ne
w p
rog
ram
(in
//
to L
HC
co
nst
ruct
ion
)
•U
S-LA
RP
in U
S in
20
03
(6
MC
HF/
y 2
00
6-1
3)
–
ba
sed
on
a N
b3Sn
DO
E p
rog
ram
19
98
-20
10
•FP
6-C
AR
E :
NE
D J
RA
to
de
velo
pE
U N
b3
Sn in
20
04
-08
. I
tsp
osi
tiv
e e
ffe
cts
NO
W!
•FP
7 E
uC
ard
IA:
WP
on
HFM
20
09
-20
12
In 2
00
7 n
ew
–a
nti
cip
ate
d–
sce
na
rio
:
•N
b3Sn
no
t re
ad
yb
efo
re2
01
5-1
7
•D
eci
sio
nto
ta
rge
ta
fir
st u
pg
rad
e in
20
12
-13
⇒P
ha
se 1
ba
sed
on
Nb
-Ti Ø
=1
20
mm
⇒FP
7 S
LHC
-PP
la
un
che
dfo
r 2
00
8-2
01
0
28
Ju
ne
20
10
21
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Up
da
ted
LHC
lu
mi
vs.
(e
nd
of)
ye
ar
50
0
60
0
70
0
80
0
90
0
10
00
1.0
E+
34
1.2
E+
34
1.4
E+
34
1.6
E+
34
1.8
E+
34
2.0
E+
34
Integrated luminosity [fb-1]
Luminosity [cm-2s-1]
010
0
20
0
30
0
40
0
50
0
-6.9
E+
19
2.0
E+
33
4.0
E+
33
6.0
E+
33
8.0
E+
33
1.0
E+
34
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
Integrated luminosity [fb
Luminosity [cm
to n
om
ina
l -lu
mi
to u
ltim
ate
-lu
mi
hf.
2 -
lum
ito
ult
ima
teto
no
min
al
hf.
2 -
int
Co
urt
esy
of
M.
Lam
on
t, s
pri
ng
20
10
28
Ju
ne
20
10
22
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Inte
nsi
ty L
imit
s
Inte
nsi
ty L
imit
ati
on
s (1
01
1p
roto
ns
pe
r b
un
ch)
Pre
sen
tSP
L-P
S22
Ge
V in
PS
Lin
ac2
/LIN
AC
44
.04
.04
.0
PSB
or
SPL
3.6
4.0
3.6
PS
or
PS2
1.7
4.0
3.0
Re
min
de
r d
esi
gn
= 1
.15
(fo
r 1
03
4);
Ult
ima
te =
1.7
(f
or
2.3
x10
34)
PS
or
PS2
1.7
4.0
3.0
SPS
1.2
>1
.7?
>1
.7?
LHC
1.7
-2.3
?1
.7-2
.3?
1.7
-2.3
?
Co
ncl
usi
on
:
We
co
nti
nu
e (
as
pla
nn
ed
) a
nd
te
rmin
ate
th
e s
tud
y fo
r LP
-SP
L/P
S2
an
d s
tud
y
in p
ara
llel
the
PS
Bo
ost
er
en
erg
y u
pg
rad
e
De
cisi
on
ca
n b
e t
ake
n w
he
n w
e h
ave
th
e r
esu
lts
of
the
se s
tud
ies
an
d
exp
eri
en
ce w
ith
th
e L
HC
op
era
tio
n2
8 J
un
e 2
01
02
3L.
Ro
ssi
-H
L-LH
C D
esi
gn
Stu
dy
@ E
SGA
RD
MT
P “
Ob
serv
ati
on
s fr
om
th
e D
G”
•T
hu
s, t
he
MT
P a
ssu
me
s th
e f
ea
sib
ilit
y o
f th
e e
ne
rgy
up
gra
de
of
the
PS
Bo
ost
er
an
d d
oe
s n
ot
incl
ud
e t
he
sta
rt o
f th
e L
P-S
PL
an
d P
S2
co
nst
ruct
ion
as
of
20
13
•In
ord
er
to o
pti
miz
e t
he
str
ate
gy
tow
ard
s th
e H
L-LH
C,
wit
h t
he
go
al o
f m
axi
miz
ing
th
e in
teg
rate
d lu
min
osi
ty
use
ful f
or
ph
ysic
s, M
an
ag
em
en
t h
as
set
up
a t
ask
forc
e.
A p
relim
ina
ry r
eco
mm
en
da
tio
n f
rom
th
is t
ask
forc
e is
to
de
lay
the
inn
er
trip
let
rep
lace
me
nt
to a
sin
gle
HL-
LHC
up
gra
de
aro
un
d 2
02
0.
28
Ju
ne
20
10
24
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Ph
ase
1 a
sse
ssm
en
t: s
um
ma
ry f
rom
task
forc
e @
LM
C-1
0M
ar2
01
0 -
2a
•D
isa
dva
nta
ge o
f th
e P
ha
se 1
.–
Op
tics
mu
ch m
ore
rig
id;
•re
qu
ire
s sp
eci
al s
che
me
. Ab
err
ati
on
sa
t th
e li
mit
of
LHC
co
rre
ctio
n c
ap
ab
ilit
y.
Lon
ge
r m
ag
ne
ts (
sam
e t
ech
no
log
y) d
oe
s n
ot
he
lp.
•3
0 c
m β∗
is m
ore
dif
ficu
lt t
ha
n 5
5 c
m o
f th
e p
rese
nt
LH
C.
Be
tte
r so
luti
on
fo
un
d w
ith
β∗
= 4
0 c
m o
ffe
rin
g a
3 s
igm
a m
arg
in p
er
be
am
(w
hic
h w
as
pa
rt o
f th
e in
itia
l go
al)
bu
t o
nly
1.2
ga
in in
lum
iove
r n
om
ina
l. T
od
ay w
e a
re li
mit
ed
by
a s
ing
le e
lem
en
t. IR
up
gra
de
wil
l use
all
th
e m
arg
ins
in t
he
wh
ole
rin
g.
a s
ing
le e
lem
en
t. IR
up
gra
de
wil
l use
all
th
e m
arg
ins
in t
he
wh
ole
rin
g.
–To
ch
an
ge
th
is:
•m
od
ific
ati
on
in M
S p
osi
tio
ns
an
d r
ep
lace
me
nt
of
a f
ew
ma
gn
ets
,
•a
dd
itio
na
l IR
co
llim
ato
rs t
o c
atc
h h
igh
er
loss
es
in I
R m
atc
hin
g s
ect
ion
(lo
we
r a
pe
rtu
re d
ue
to
hig
he
r b
eta
* in
th
e n
ot-
cha
ng
ed
ma
gn
ets
•U
se u
ltim
ate
str
en
gth
in t
he
se
xtu
po
les,
NE
W p
ow
eri
ng
sch
em
e o
f M
QT
co
rre
cto
r fa
mil
ies.
–Lo
gis
tics
is h
ard
: T
he
log
isti
c fo
r a
nci
llary
eq
uip
me
nt
is h
ard
.•
A s
olu
tio
n N
OT
fu
lly
sati
sfa
cto
ry h
as
be
en
fo
un
d f
or
IP1
; m
ore
dif
ficu
lt f
or
IP5
.
•A
re
al l
on
g t
erm
so
luti
on
de
vise
d (
see
S.
We
isz
in C
ha
mo
nix
an
d S
C li
nks
by
A.
Ba
lla
rin
o).
T
his
so
luti
on
sh
ou
ld b
e in
teg
rate
d in
a m
ore
glo
ba
l stu
dy
for
R2
E r
ad
iati
on
p
rote
ctio
n o
f e
lect
ron
ics
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D2
5
Ph
ase
1 a
sse
ssm
en
t: s
um
ma
ry f
rom
task
forc
e @
LM
C-1
0M
ar2
01
0 -
2b
•D
isa
dva
nta
ge
of
the
Ph
ase
1
–T
he
use
of
the
sa
me
re
frig
era
tor
for
RF
an
d A
rc-I
T in
4-5
ma
kes
5L
(CM
S) w
ea
ker
in t
erm
of
cryo
-po
we
r fo
r h
igh
lum
ino
sity
.
–T
he
ne
w s
che
du
le o
f LH
C:
we
will
no
t b
e a
t n
om
ina
l be
fore
2
01
4-1
5 a
t th
e v
ery
be
st,
an
d t
he
30
0-4
00
fb
-1 a
re f
ore
see
n w
ell
be
yon
d 2
02
0.
be
yon
d 2
02
0.
–B
eca
use
of
pa
st a
nd
fu
ture
de
lay
(sp
lice
co
nso
lida
tio
n)
the
IT
p
ha
se 1
ca
nn
ot
be
in
sta
lled
an
ywa
y b
efo
re 2
01
6/1
7.
–1
ye
ar
op
tim
isti
c in
sta
llati
on
tim
e +
ne
ed
ed
tim
e f
or
a n
ew
co
mm
issi
on
ing
of
the
ma
chin
e
–T
he
fa
irly
lon
g s
top
, a
nd
th
e r
ela
tive
ly lo
w g
ain
fa
cto
r: 2
at
ma
x,
1.2
at
min
) re
qu
ire
2.5
to
5 y
ea
rs j
ust
to
ca
tch
up
. T
he
n o
the
r lo
ng
sto
ps
will
be
re
qu
ire
d f
or
L >
2-3
10
34.
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D2
6
Ph
ase
1 a
sse
ssm
en
t: s
um
ma
ry f
rom
task
forc
e @
LM
C-1
0M
ar2
01
0 –
3
•R
eco
mm
en
da
tio
n a
bo
ut
Ph
ase
1
–St
op
th
e p
ha
se 1
pro
ject
–K
ee
p g
oin
g o
n t
he
R&
D o
f P
ha
se 1
th
at
is n
ece
ssa
ry
be
cau
se o
f lo
ng
lea
d t
ime
de
velo
pm
en
t;
–D
eci
sio
n i
n 2
01
3/2
01
4,
aft
er
LHC
be
ha
vio
ur
ne
ar
no
min
al
–D
eci
sio
n i
n 2
01
3/2
01
4,
aft
er
LHC
be
ha
vio
ur
ne
ar
no
min
al
will
be
kn
ow
n,
the
be
st t
ech
no
log
y fo
r u
pg
rad
e.
We
ca
n’t
sta
rt c
on
stru
ctio
n b
efo
re h
alf
20
13
. D
eci
sio
n in
20
14
to
ha
ve it
by
20
18
-20
20
.
–P
ut
the
IT
up
gra
de
in a
glo
ba
l pic
ture
s, p
rece
de
d b
y a
ll
con
solid
ati
on
or
imp
rove
me
nt
ne
ed
ed
to
ma
ke it
mo
st
eff
ect
ive
an
d c
om
pa
tib
le w
ith
oth
er
eq
uip
me
nt.
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D2
7
Wh
at
ne
ed
s fo
r a
ve
rag
e l
um
i5
x1
03
4
Ne
w l
ay
-ou
t o
f so
me
pa
rt o
f LH
C
•Im
pro
ve s
om
e c
orr
ect
ors
–C
om
mis
sio
nin
g @
60
0-6
50
A t
he
latt
ice
se
xtu
po
les
–N
ew
MQ
T c
orr
ect
or
sch
em
e u
sin
g e
xist
ing
sp
are
60
0 A
bu
s b
ars
•R
e-c
om
mis
sio
nin
g D
S q
ua
ds
at
hig
he
r g
rad
ien
t
•R
evi
ew
MSs
–
Ch
an
ge
of
Ne
w Q
5/Q
4 (
larg
er
ap
ert
ure
), w
ith
ne
w s
tro
ng
er
corr
ect
or
–C
ha
ng
e o
f N
ew
Q5
/Q4
(la
rge
r a
pe
rtu
re),
wit
h n
ew
str
on
ge
r co
rre
cto
r o
rbit
, d
isp
lace
me
nts
of
few
ma
gn
ets
–La
rge
r a
pe
rtu
re D
2
•(m
ay b
e o
the
r a
ctio
ns,
mo
re q
ua
ds
in p
oin
ts 6
an
d 7
)
•D
isp
lace
me
nt
of
Po
we
r C
on
vert
ers
& D
FBs
at
lea
st o
f In
ne
r Tr
iple
ts b
ut
als
o o
f O
TH
ER
eq
uip
me
nt
on
su
rfa
ceb
y m
ea
ns
of
SC li
nks
.
•C
ryo
-pla
nt
for
RF
in p
oin
t 4
: 5
-7 k
W @
4.5
K
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D2
8
Th
e m
ain
in
gre
die
nt
of
the
up
gra
de
-1
IR Q
ua
ds
•H
igh
Gra
die
nt/
Larg
e A
pe
rtu
re Q
ua
ds,
wit
h B
pe
ak
13
-1
5 T
.H
igh
er
fie
ld q
ua
dru
po
les
tra
nsl
ate
in h
igh
er
gra
die
nt/
sho
rte
r le
ng
tho
r la
rge
r a
pe
rtu
re/s
am
e
len
gth
or
a m
ix .
US
-LA
RP
en
ga
ge
d t
o p
rod
uce
pro
of
by
20
13
. C
on
stru
ctio
n i
s 1
ye
ar
mo
re t
ha
n N
b-T
i :
by
b
y 2
01
3.
Co
nst
ruct
ion
is
1 y
ea
r m
ore
th
an
Nb
-Ti
: b
y
20
18
is a
pru
de
nt
ass
um
pti
on
. β∗
as
sma
ll a
s 2
2 c
m
are
po
ssib
le
wit
h a
fa
cto
r ∼ ∼∼∼
2.5
in lu
min
osi
ty b
y it
self
, if
co
up
led
wit
ha
me
cha
nis
m t
o c
om
pe
nsa
te t
he
g
eo
me
tric
al
red
uct
ion
. If
a n
ew
wa
y o
f co
rre
ctin
g
chro
ma
tic
ab
err
ati
on
co
uld
be
fo
un
d, β βββ∗ ∗∗∗
as
sma
ll a
s 1
0-1
2 c
m c
an
be
ev
en
tua
lly
en
vis
ag
ed
.
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D2
9
HF
Nb
3S
n Q
ua
d•
Nb
3S
n is
be
com
ing
a r
ea
lity
(fir
st L
Q l
on
g -
3.6
m –
qu
ad
90
mm
)
•T
his
ye
ar
we
exp
ect
a s
eco
nd
LQ
an
d a
1 m
lo
ng
-1
20
mm
ap
ert
ure
mo
de
l
•In
3 y
ea
rs:
4-6
m lo
ng
ma
gn
ets
, 1
20
mm
ap
., G
=1
80
-20
0 T
/m
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D3
0
G=
20
0
T/m
16
0 T
/m
Ge
qu
ivLH
C
We
are
ne
ar…
Test
of
LAR
P H
Q –
12
0 m
m
Ma
x cr
itic
al
curr
en
t
Go
al H
L-LH
C (
G=
18
0 T
/m)
29
Ju
ly 2
01
0L
Ro
ssi
@ F
erm
ilab
31
Go
al P
ha
se 1
(G
=1
27
T/m
)
•C
rab
Ca
vit
ies:
th
is is
th
e b
est
ca
nd
ida
te f
or
exp
loit
ing
sm
all β∗
(fo
r β∗
aro
un
d n
om
ina
l on
ly +
15
%).
Ho
we
ver
it
sho
uld
be
un
de
rlin
ed
th
at
tod
ay
Cra
b C
avi
tie
s a
re n
ot
valid
ate
d f
or
LHC
, n
ot
eve
n c
on
cep
tua
lly:
the
iss
ue
of
ma
chin
e p
rote
ctio
n s
ho
uld
be
ad
dre
sse
d w
ith
pri
ori
ty.
Th
e m
ain
in
gre
die
nt
of
the
up
gra
de
-2
RF
Cra
b c
av
itie
s
•G
lob
al S
che
me
. 1
ca
vity
in I
P4
, P
roo
f o
n L
HC
, g
oo
d f
or
1 X
-in
g.
•S
em
i-g
lob
al;
it
ma
y w
ork
!(JP
Ko
utc
ho
uck
)
•Lo
cal s
che
me
; 1
ca
vity
pe
r IP
sid
e.
Ma
yb
e l
oca
l d
og
leg
s n
ee
de
d.
–E
arl
y S
ep
ara
tio
n S
che
me
co
uld
be
an
alt
ern
ati
ve (
or
a
com
ple
me
nt)
•B
oth
sch
em
e,
Cra
bC
avi
tie
sa
nd
ESS
pro
vid
ea
sim
ple
m
ea
nto
do
leve
llin
g
28
Ju
ne
20
10
32
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Cra
b C
av
itie
s
θ θθθc
28
Ju
ne
20
10
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D3
3
Elli
pti
cal
80
0 M
Hz
no
t fa
r fr
om
be
ing
de
sig
ne
d.
Re
qu
ire
40
0 m
m b
ea
m-b
ea
m
40
0 M
Hz
sma
ll ca
vity
un
de
r co
nce
ptu
al
stu
dy,
th
ey
can
(?
) fi
t in
19
4 m
m b
ea
m-
be
am
. R
eq
uir
ed
fo
r fi
na
l so
luti
on
Re
f. :
F.
Zim
me
rma
nn
, E
d C
iap
ala
Collimation: need of room in DS of P7,
P2… 11 T–11 m Twin Dipole for DS
Shif
t in
th
e m
ag
ne
t
po
siti
on
re
qu
ire
s to
ma
ke r
oo
m f
or
colli
ma
tors
(re
d
squ
are
s).
Alt
ern
ati
ve o
pti
on
ba
sed
on
str
on
ge
r a
nd
sh
ort
er
34
on
str
on
ge
r a
nd
sh
ort
er
ma
gn
ets
(b
lue
rect
an
gle
s).
2 d
ips/
Po
int
Ad
dre
ssin
gR
2E
(u
pg
rad
e +
con
soli
da
tio
n)
12
0 k
A w
ere
alr
ea
dy
ass
em
ble
d a
t C
ER
N l
ast
ye
ar.
Sub
-ca
ble
s w
ere
te
ste
d a
t C
ER
N a
t cu
rre
nts
o
f u
p t
o 1
8 k
A (
@ 4
.5 K
an
d in
se
lf-f
ield
)
35
1.1
mm
Mg
B2
wir
e
•N
ew
Cry
op
lan
tsin
IP
1 &
IP
5:
for
po
we
r A
ND
to
ma
ke
ind
ep
en
de
nt
Arc
-IR
:2
.8 k
W @
1.8
K s
cale
s a
s 5
.2 k
W @
2 K
(fo
r 1
se
t o
f co
ld
com
pre
sso
r)
•W
ork
ing
at
4.2
K w
illb
ea
plu
s (f
or
IR m
ag
ne
ts)
•S
pe
cia
ld
ed
ica
ted
coll
ima
tio
n s
yst
em
(a
lso
for
An
d m
ore
…
•S
pe
cia
ld
ed
ica
ted
coll
ima
tio
n s
yst
em
(a
lso
for
ba
ckg
rou
nd
) a
nd
Ma
chin
e p
rote
ctio
n
•R
ob
oti
csfo
r re
mo
tem
an
ipu
lati
on
–D
ism
an
tlin
gp
rese
nt
Trip
let
–In
sta
llati
on
HL-
LHC
–M
ain
ten
an
ce
–D
ism
ou
nti
ng
HL-
LHC
??
?
28
Ju
ne
20
10
36
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
It i
sn
ew
en
tire
pro
ject
⇒ ⇒⇒⇒w
en
ee
da
De
sig
n S
tud
y
•W
ew
illtr
yto
ge
ta
EU
fu
nd
ed
DS
(de
sig
n S
tud
y) in
th
e F
P7
•T
he
wo
rko
f SL
HC
-PP
(P
ha
se 1
) h
as
be
en
ess
en
tia
l to
arr
ive
to
th
sip
oin
t a
nd
mo
sto
f it
will
be
use
d
•Sc
op
e o
f th
e H
L-LH
C D
S:
•C
arr
y o
ut
the
stu
dy
to
pro
du
ce a
co
nsi
ste
nt
de
sig
n t
o r
ea
ch 5
10
34
wit
h l
ev
ell
ing
, a
llo
w L
HC
to
re
ach
th
e g
oa
l o
f 3
00
0 f
b-1
by
20
30
(s)
•C
arr
y o
ut
the
stu
dy
to
pro
du
ce a
co
nsi
ste
nt
de
sig
n t
o r
ea
ch 5
10
wit
h l
ev
ell
ing
, a
llo
w L
HC
to
re
ach
th
e g
oa
l o
f 3
00
0 f
b-1
by
20
30
(s)
–E
xplo
rin
g i
n d
eta
ils a
ll so
luti
on
s a
nd
pa
ths
for
the
up
gra
de
, b
oth
in t
erm
s o
f LH
C o
pe
rati
on
al
mo
de
an
d h
ard
wa
re c
ha
ng
es
–P
rod
uci
ng
by
en
d 2
01
3 a
PD
R(P
relim
ina
ry D
esi
gn
Re
po
rt)
en
ab
lin
g t
he
C
ER
N m
an
ag
em
en
t, t
o m
ake
a c
ho
ice
ab
ou
t th
e c
on
fig
ura
tio
n o
f LH
C
up
gra
de
in
20
14
.
–P
rod
uci
ng
by
en
d o
f 2
01
4/h
alf
20
15
a T
DR
(Te
chn
ica
l De
sig
n R
ep
ort
) o
f th
e s
ele
cte
dp
ath
for
the
up
gra
de
de
fin
ing
the
ma
xim
um
go
al
for
the
LH
C
lum
ino
sity
28
Ju
ne
20
10
37
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
Re
sou
rce
sfo
r th
e p
rog
ram
•1
0 M
€to
tal c
ost
ove
r 4
ye
ars
: Ju
ly 2
01
1-2
01
5
•R
eim
bu
rsm
en
tb
y E
U–
30
-40
% m
ay
be
reim
bu
rse
db
y E
U t
o E
U I
nst
itu
tio
n
•To
tal c
ost
of
the
LH
C u
pg
rad
e :
50
0 M
–C
ost
of
the
R&
D &
Stu
dy
: a
tle
ast
50
M (
teh
con
trib
uti
on
of
EU
ism
arg
ina
l…
•…
Ho
we
ver
si im
po
rta
nt
to g
et
a s
tru
ctu
red
org
an
iza
tio
nin
wh
ich
•…
Ho
we
ver
si im
po
rta
nt
to g
et
a s
tru
ctu
red
org
an
iza
tio
nin
wh
ich
pro
ject
isg
ove
rne
db
y a
co
llab
ora
tio
n…
•P
oss
ibili
tyfo
r U
S la
bs
(an
d/o
r D
OE
, L
AR
P)
an
d K
EK
to
be
full
pa
rtn
er
of
the
go
vern
ing
bo
ard
of
the
EU
DS.
•W
ou
ldth
e E
U D
sn
ot
be
ap
pro
ve
dw
ein
ten
dto
pro
mo
teth
e
coll
ab
ora
tio
n w
ith
Mo
Us
ve
rym
uch
lik
ed
ete
cto
rs.
–A
fir
st s
tep
for
De
sig
n a
nd
R&
D
–A
se
con
d s
tep
for
act
ua
lco
nst
ruct
ion
28
Ju
ne
20
10
38
L. R
oss
i -
HL-
LHC
De
sig
n S
tud
y @
ESG
AR
D
CE
RN
Co
un
cil &
DG
Co
lla
bo
rati
on
Bo
ard
Ad
vis
ory
Co
mm
itte
e
Pro
ject
Co
ord
ina
tor
Pro
ject
Off
ice
:
Re
sou
rce
ma
na
ge
r
Tech
nic
al
coo
rdin
ato
rs
Ste
eri
ng
Co
mm
itte
e
FP
7 D
esi
gn
Stu
dy
fra
me
wo
rk
R&
D o
n e
na
bli
ng
tech
no
log
ies
De
sig
n S
tud
ies
Tech
nic
al
De
sig
n
WP
1W
P2
WP
n
Org
an
iza
tio
n m
od
el
for
HL-
LHC
Jpk
27
/4/2
01
0
Eu
CA
RD
USL
AR
P
I se
eth
e 1
1T
dip
ole
sa
s p
art
of
HL-
LHC
bu
t o
uts
ide
the
EU
DS
HE-LHC
•T
he
Hig
h L
um
ino
sity
LH
C o
r H
L-LH
C is
th
e r
ou
te t
ha
t w
ill e
na
ble
the
way
to
th
e F
art
he
st E
ne
rgy
Fro
nti
er
: a
n H
E-L
HC
ba
sed
on
20
T m
ag
ne
ts f
or
a 3
3 T
eV
c.o
.m.
colli
de
r
•H
E-L
HC
Wo
rksh
op
14
-16
Oct
ob
er
in M
alt
a
40
Nb
3Sn
+
HT
S
ma
gn
ets
tra
nsm
issi
on
lin
e m
ag
ne
ts
of
ne
w i
nje
cto
r
Fie
ld in
th
e c
oil
(on
e p
ole
sh
ow
n)
at
20
T o
pe
rati
on
alf
ield
Ske
tch
of
the
do
ub
le a
pe
rtu
re m
ag
ne
t
wit
hth
e i
ron
yoke
–C
oils
are
in b
lue
