VEPP-5 POJECT Present Status

1. VEPP-5 POJECTPresent Status BINP, Novosirisk, Russia R.Gromov

3. Layout of VEPP-5 injection complex

4. Forinjector parameters

5. Storage Ring Parameters

6. Beam Parameters in Storage Ring

8. Parameters of accelerating structure Frequency f 2855.5 МГц q 2 p / 3 Field mode × Quality factor Q 4 1.32 10 0 × Gruop velocity V 0.021 C gr Shunt impedance R 51 МОм / м sh Time constant of accelerating structure t × w 1 .47 мкс = 2 Q / 0 0 Damping factor of accelerating structure a t × 0.108 1 / м = 1/( V ) 0 gr Length of AS +2 WTT L 2 .93 м a 0.316 Damping factor L Filling time T =L/ V 0.465 мкс f gr

9. Resonator 1 Input power To accelerating structure Resonator 2

10. Diameter of the cavity 196 мм D Height of the cavity 346.6 мм H Main frequency 2856 МГц f 0 D ± Band width 5 МГц f D D 2.75 МГц/мм f/ H Quality factor 53200 Q 0 Coupling coefficient with supply 5.84 b waveguide t0 5.93 мкс Time constant of the cavity Time constant of loaded cavity 0.87 мкс t b /(1+ ) T = C 0 0 Moment of phase jump by 180 3 мкс RF pulse duration 3.5 мкс Multiply factor of voltage 2.67 К 0

14. æ ö z ç ÷ × × - 2 a z a × E ( z , t ) = 2 R P t - e ç ÷ 0 gen sh SLED v è ø ‹р R sh ( ) ( ) = P t P 0 , t 0 SLED SLED < ì 0 at t t b Y ï æ ö ( ) - a × - < < × z ç ÷ sin 1 e at 0 z t-t v ï ï b gr è 2 ø ( ) = × E z , t R I í - t t Y b sh 0 b - ( ) ï t - × < < 1 e at t-t v z L 0 A b gr ï 2 ï < 0 at L z î t b t 0 A v gr The dependence of accelerating field along the AS at different time moment ( ) ( ) ( ) ( ) = × Q - E z , t E z , t cos E z , t ) tot gen b The dependence of particles energy at their incoming time L ( ) ( ) ò = U t E z , t dz tot 0 The dependence of RF-amplitude along the AS at different time moment , at - shunt impedance , a - attenuation coefficient , - incoming RF power from SLED The dependence of wake field amplitude along the AS at different time moment at - bunch incoming time, - time constant , - group velocity , Y - longitudinal bunch size .

17. Short beam test results

18. 88МэВ 103МэВ