The PNPI crystals for UA9

Yu.M.Ivanov, PNPI

Single crystal for channeling mode

Height 10 mm

Width 2 mm

Length 2 mm

Test with 400 GeV protons

Cut (1.0x4.0mm)

x=10800/11800

y= 5000/ 9000

Saddle bend ~40 µrad/mm

Cut (0.4x0.4mm)

x=10800/11200

y= 6800/ 7200

x=11800/12200

y= 6800/ 7200

Multi-crystal (5):crystals on the adjustable

base

Multi-crystal (5):special srews to

align

Multi-crystal (5):one from five

Multi-crystal (5):assembly to put on the

gonio

Multi-crystal (5):manual

alignment

Multi-crystal (5):from manual to el.-mech.

remote

Multi-crystal (5):elec.-mech. remote alignment

Multi-crystal (5)from el.-mech. to piezo

remote

Multi-crystal (5)crystals and base with piezo

remote

Multi-crystal (5)piezo remote assembly

Multi-crystal (5)piezo assembly on the H8

beam

Multi(5) piezo

Multi(5) piezo

Multi(5) piezo

Multi(5) piezo

Multi(5) piezo

Multi(5) piezo

Multi(5) piezo

Multi(5) result

Multi-crystal (6)

Multi-crystal (7)

Under testing with X-rays.

Conclusion

Multi-crystals with QM crystals are in preparation, should be completed by Summer 2009