1. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Absorber Design for Synchrotron Radiation Sources S.Hermle, D.Einfeld, E.Huttel (FZK); G.Heidenreich(PSI)PAC99 S.Sharma,E.Rotela,A.Barcikowsk (APS)MEDSI00 L.Zhang, J.C.Biasci, B.Plan (ESRF)MEDSI02

2. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA SR Radiation Power I=0.2AE[GeV] I = 0.2 A R [m]P bend [kW] P insertion [kW] B = 2 T BESSY1.74.362343 ANKA2.55.5591256 ESRF623.36698133

3. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA ANKA Absorber Design Storage ring:Lumped Absorber Distributed Absorber Front Ends.Mask Shutter

4. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Basic Absorber 40 W / mm Cu: Conductivity: 380 W / Km Young module120 GPa Expansion0.000017 1 / K 10000 W / K m 2 V [m/s]1234567.α [10 3 ]4.47.710.713.516.118.621.6

5. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Material - Limits Limits ESRFGLIDCOPOFHC Strain0.0060.003 ‘Stress’[MPa]800400 Tmax [°C]580260 Tboundary[°C]21080 Limits APSGLIDCOPOFHC Tmax [°C]300150 T [°C]100120140160180 P [bar]123.56.510.5

6. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA At the limit, what to do? Increase water flow Increase boundary surface Special: grooves and slots Decline the Absorber 0.95 m > 1.7 m eff. Increase source distance: 1.3 m > 1.7 m

7. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Basic Plate and Plate with Grooves (APS) Tmax: 195 Tbound: 100 Tmax: 150 Tbound: 95 40 W / mm

8. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA ANKA,SLS,..SOLEIL (Heidenreich PSI) Stress reduction by allowing expansion Tmax: 132 Tbound: 90 Tmax: 132 Tbound: 80

9. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Distributed Absorber P: 2 W/mm Tmax:60 °C Tbound 40 °C P: 0.5 W/mm Tmax:50 °C Tbound 30 °C P: 5 W/mm Tmax:75 °C Tbound 40 °C Al Extruded Cu to LN316 bondedLN316

10. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA Front End SR Shutter (20 kW) P/l: 260 W / mm P/a:6.5 W / mm 2 A:40 x 75 mm 2 Tmax:480 °C Tbound: 200 °C Absorber for reflected radiation FMB ASP Shutter

11. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA ESRF Concept Vertical Declination Horizontal Declination (ESRF) 6 tubes 8 mm 19 10 3 mm 2 ’10’ grooves 10 x 3 mm Vertical dec. 44 10 3 mm 2 25 grooves Horizontal dec. 104 10 3 mm 2

12. E.Huttel, Vacuum Workshop, ALBA, 12-13 Sept.05 Forschungszentrum Karlsruhe / ANKA ESRF Concept P/l: 260 W / mm P/a:6.5 W / mm 2 A:40 x 75 mm 2 Tmax:340 °C Tbound: 100 °C P/l: 50 W / mm P/a:25 W / mm 2 A:2 x 400 mm 2 Tmax:190 °C Tbound: 50 °C