CLIC PARAMETER LIST 3 TeV
500 GeV -> 3 TeV evolution options here

Last update 15.04.10

Parameter	Symbol	2008 CLIC Note 764 (present parameters update after note in red)	Unit
Overall Parameters
Center of mass energy	Ecm	3000	GeV
Main Linac RF Frequency	fRF	11.994	GHz
Luminosity	L	5.9	10^34cm^-2s^-1
Luminosity (in 1% of energy)	L99%	2	10^34cm^-2s^-1
Linac repetition rate	frep	50	Hz
No. of particles / bunch	Nb	3.72	10^9
No. of bunches / pulse	kb	312
Bunch separation	Δtb	0.5 (6 periods)	ns
Bunch train length	τtrain	156	ns
Beam power / beam	Pb	14	MW
Unloaded / loaded gradient	Gunl/l	120 / 100	MV/m
Overall two linac length	llinac	42.16	km
Total beam delivery length	lBD	2 x 2.75	km
Proposed site length	ltot	48.4	km
Total site AC power	Ptot	415	MW
Wall plug to main beam power efficiency	ηtot	7	%
Beam Delivery System + IP
Total diagnostic section length	ldiag	2 x 0.37	km
Total collimation system length	lcoll	2 x 1.92	km
Total final Focus system length	lFF	2 x 0.46	km
Input transverse horizontal emittance (norm.)	γεx	660	nm rad
Input transverse vertical emittance (norm.)	γεy	20	nm rad
Nominal horizontal IP beta function	β^*x	6.9	mm
Nominal vertical IP beta function	β^*y	0.068	mm
Horizontal IP beam size before pinch	σ^*x	45	nm
Vertical IP beam size before pinch	σ^*y	1	nm
Bunch length	σs.inj	44	um
Initial RMS Energy spread	σ^*DE/E	0.29	%
Total Energy spread			%
Crossing angle at IP	θC	20	mrad
Disruptions	Dx / Dy
Beamstrahlung parameter	Υ0
Beamstrahlung mom. spread	δB	29	%
No. of photons / electron	nγ	2.2
No. of pairs (pT^min=20MeV/c, θmin=0.2)	Npairs	45
No. of coherent pairs	Ncoh	38	10^7
Hadronic events / crossing	Nhadron	2.7
No. of jets (pT^min=3.2 GeV/c)	Njets
Peak luminosity	Lpk	5.9	10^34cm^-2s^-1
Luminosity (in 1% of energy)	L99%	2.0	10^34cm^-2s^-1
Jitter tolerance (final quadrupoles) (for 2% loss in L)		0.14 - 0.18	nm
Main Linac		CLIC G
Fill factor	F	78.6	%
Overhead for energy fdbk & repair	ovhrep	5	%
Overhead for off-crest operation	ovhoff-crest	5	%
Acceleration structure length (active/full)	lstruct	0.229	m
a/λ	a/λ	0.11
Group velocity	vg/c	1.66 - 0.83	%
Filling time / rise time	tf	62.9/22.4	ns
RF -> main beam efficiency	ηbRF	27.7	%
Pre-alignment acc. structure tolerance (1σ)		14	μm
Pre-alignment quadrupole tolerance (1σ)		17	μm
Pre-alignment quadrupole BPM tolerance (1σ)		14	μm
relative position of structure and BPM reading (1σ)		5	μm
Decelerator
No. of drive beam sectors / linac	Nunit	24
Unit length (total)	Lunit,total	876.6	m
Average fill factor	F		%
No. of PETS / sector	NPETS,unit	1491
Length of PETS (active/overall)	LPETS	0.213 /	m
Nominal output RF Power / PETS	Pout	136	MW
Transfer efficiency PETS > HDS		93.8	%
Number of accelerating structures / PETS		2
Main beam acceleration power / PETS	Pacc	2 x 63.9	MW
Main beam energy gain / sector	DEmain	62.5	GeV
drive beam -> RF efficiency (HDS input)	ηdecRF	65	%
PETS tolerance (1σ)		31	μm
Main Beam at linac injection
Energy	Eb,inj	9	GeV
No. of particles / bunch	Nb	3.72	10^9
Bunch length	σs.inj	44	um
Energy spread	ΔE/Einj	1.6	%
Transverse horizontal emittance (norm.)	γεx,inj	600	nm rad
Transverse vertical emittance (norm.)	γεy.inj	10	nm rad
Main Beam in damping ring before extraction
Energy	Eb,DR	2.86	GeV
No. of particles / bunch	Nb	4.1	10^9
Bunch length	σs,DR	1.4	mm
Energy spread	σE/EDR	0.13	%
Transverse horizontal emittance (norm.)	γεx.DR	480	nm rad
Transverse vertical emittance (norm.)	γεy,DR	4.5	nm rad
Longitudinal emittance		5960	eVm
new values are calculated with IBS for wiggler field of 2.5T with period of 5cm, betatron coupling 0.13%, dispersion invariant of 0.25μm, Vrf=4.1MV
Electron / positron damping ring
Ring circumference	CDR	420.56	m
Number of trains stored	Ntrain	2
Number of bunches / train	kb,DR	156
Bunch separation	Δtb,DR	1	ns
RF frequency	fDR	999.5	MHz
Wiggler length	lwig	104	m
Damping times	τx / τy / τz	1.88/1.91/0.96	ms
Tunes	Qx / Qy	55.46 / 11.6
Tolerances
Drive beam basic parameters
Energy (decelerator injection)	Ein,dec	2.37	GeV
Energy (final, minimum)	Efin,dec	237	MeV
Average current in pulse	Idec	101	A
Train duration	ttrain	243.7	ns
No. bunches / train	Nb.dec	2922
Bunch charge	Qb,dec	8.4	nC
Bunch separation	Db,dec	0.083	ns
Bunch length, rms	σs,dec	1	mm
Normalized emittance, rms	γεdec	150	μm rad
Drive Beam linac
RF frequency	fRF	999.5	MHz
Total number of klystrons	Nkly	? * 2
Klystron peak power	Pkly	15	MW
Repetition frequency	frep	50	Hz
Beam energy	Ei	2.37	GeV
Pulse length (total train)	ti	140.3	μs
Beam current per pulse	Ii	4.2	A
Charge per pulse	Qi	590	μC
Number of bunches / pulse	Nb	70128
Bunch length (rms)	σs	3 -> 1	mm
Normalized emittance (at injection)	γεi	≤ 100	μm rad
Total energy spread (at injection)	ΔE/E	≤ 1	%
Wall plug -> RF efficiency	ηACRF	58.6	%
RF -> drive beam efficiency	ηbRF	93	%
Delay Line
Length	LD	73.05 m	m
RF deflector frequency	fD	499.8	MHz
Combination factor	FCD	2
Bunch length (rms)	σs	2	mm
Combiner Ring 1
Length	LR1	~292	m
RF deflector frequency	fR1	999.5	MHz
Combination factor	FCR1	3
Bunch length (rms)	σs	2	mm
Combiner Ring 2
Length	LR2	438.28	m
RF deflector frequency	fR2	2998.6	MHz
Combination factor	FCR2	4
Bunch length (rms)	σs	2	mm