Construction started: | June 1983 |
First beam: | February 1988 |
Total cost of facility: | 18.6 MDM |
Ann. operating time: | up to 3000 h |
Accelerated particles: | electrons |
Energy: | 0.5 - 3.5 GeV |
Ring circumference: | 164.4 m |
Tunnel sect. (W x H): | 2.5 m x 2.3 m |
LINAC 2: | 26 MeV, source of polarized electrons (pol. appr. 80 %) |
Type: | 50 Hz fast cycling synchrotron |
Output: | max. 500 nA at 0.5 - 1.6 GeV |
Injection period: | 0.45 usec or 0.8 turns of ELSA |
Inflector type: | septum magnet |
Focusing type: | AG, seperated function |
Focusing order: | FODO |
Betatron tune: | (for extraction) hor. 4.64, vert. 4.60 |
No. of Dipols: | 24 Length: 2.84 m |
Bending field: | max. 1.07 T |
No. of Quadrupols: | 32 (+4 aircore) Length: 0.45 m |
Gradient: | max. 7.7 T/m |
No. short straight sect.: | 24 Length: 1.50 m |
No. long straight sect.: | 8 Length: 4.69 m |
Rise time: | 0.2-5 s |
Flat-top-time: | 0.5-140 s (relevant for post-accelerator mode of operation only) |
Power input | peak: 3.7 MW, mean: 1.6 MW |
RF frequency: | 499.67 MHz |
Harmonic number: | 274 |
No. cavities: | 2 |
Length: | 1.5 m |
RF power input peak: | 250 kW |
Radiation loss: | 1225 keV/turn at 3.5 GeV |
Material of vac. chamber: | stainless steel |
Aperture of vac. chamber: | typically 100 mm x 50 mm |
Average pressure: | 5 . 10-9 mbar (without beam) |
Method: | hor. betatron resonance Q = 4 2/3 |
resonance strength controlled by sextupoles | |
Rate control: | spillout controlled by ironless quads |
Length of spill: | 20 ms to 60 s |
Mode 1: | Stretcher |
Mode 2: | Post-accelerator |
Mode 3: | Synchrotron Radiation Source |
Mode 1: | 0.5 - 1.6 GeV |
Mode 2: | 0.5 - 3.5 GeV |
Mode 3: | 1.6 - 3.0 GeV |
Mode 1: | 2 - 10 mA |
Mode 2: | 15 - 80 mA |
Mode 3: | 25 - 250 mA |
Mode 1: | 10 pA - 100 nA |
Mode 2: | 1 pA - 20 nA |
electron beams: | 2 international collaborations |
Letzte Bearbeitung: 13.10.2022, 18:10 - F. Frommberger |
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URL: http://www-elsa.physik.uni-bonn.de/Beschleuniger/elsatech.html | Druckdatum: 19.04.2024, 20:01 |