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VEPP-3: PARAMETER LIST.
 
Circumference (m) 
74.39
Revolution frequency f0 (kHz) 
4030.0
Turn time (nsec) 
248
Energy (MeV): injection :  
                        ejection :  
                        experiment :
350
1800 
2000
Particles: electrons, positrons (by change of magnetic field sign)   
Tunes: Qx ;Qz
5.10 -:- 5.20
Momentum compaction factor
0.071
Dumping factors : vertical  
                            horizontal  
                            longitudinal
1.00
0.93
2.07
Admittance (mrad*mm): vertical  
                                      horizontal 
26
138
Aperture in arcs (bx , bz = 550 cm ; 2Ax * 2Az , mm2)
55* 24
  

 
RF - systems
RF-2
RF-18
Radio frequency (MHz)
8.06
72.54
Harmonic number
2
18
Number of cavities
1
1
Max. RF-amplitude (kV)
20
800
Max. RF-generator power (kW) 
20
150
Fly-by factor of RF-cavity
 
.85
  
 
Beam parameters
(calculated, without beam current effects)
 
E = 350 MeV
U8 = 3 KV
E = 2000 MeV
U72 = 500 KV
Dumping time (sec): vertical
.82
.0040
horizontal
.87
.0043
longitudinal
.39
.0020
Horizontal emittance (mrad*mm)
0.00905
0.292
Bunch dimensions s (mm,   
if bx , bz = 550 cm; D = 120 cm) :		    
horizontal (betatron) 
.225
1.27
horizontal (dispersion) 
.15
0.87
horizontal (full) 
.27
1.54
vertical 
(0.1 -:- 0.5)* sx
(0.1 -:- 0.5)* sx
Energy spread : sE /E (%) 
.0125
.072
Bunch length : sL (cm) 
23.5
9.1
     
Energy loss (kV/turn)
.21 
246 (with wiggler)
Synchronous phase (grade) 
174.9 
150.4 
Separatrix width :     
in phase (grade) 
4.1 -:- 308 
30.0 -:- 220 
dE sep /E (%) 
.59 
.66 
dXsep (mm; D =120 cm) 
6.33 
7.71 
Synchrotron tune :     
fs (kHz) 
1.77 
26.7 
fs /f0 
.0004 
.0066 
     
Beam lifetime (hours) 
.5 -:- 1.0 
4 -:- 6