Instrument Upgrades

Upgrade

• Old triple axis Rita-II transferred to the multianalyser-box CAMEA
• Sample table reinforced to allow the movement of the heavier analyzer/detector box

Basic set-up

• Total weight of secondary instrument without sample table ~10 tons
• Shielding  polyethylene and borated aluminum
• Vacuum-vessel stainless steel
• Neutron window aluminum
• Be-filter cooled to 77°K
• Radial collimator 1°

Air cushion assembly

• 15 air cushion pads
• Air cushion lifting stroke 0.06 mm
• Maximal load per pad 800 kg
• Vibration-insulating between instrument components and air cushion assembly

Detector tubes

• 8 x 13 tubes
• Compact construction (sub - ½ inch) for plug and adapter (in-house development)
• Coaxial design
• Detector tubes inside vacuum (tested up to 1e^-8 mbar)

Detector electronics

• Position sensitive data streaming
• Modular design of amplifier stages of the PSD detectors
• Remote service and monitoring possible
• Integration of 2nd generation data acquisition (in-house development)

Other electronics

• Renewal of the complete motion control and PLC system
• Inside "high radiation" use of resolver encoders
• Improved resolver-electronics (in-house development)
• Fully remote controllable
• PLC-integration of the entire vacuum-technics

MARS-removal

• Instrument dismantling
• Plasma cutting of aluminum vessel
• Grouting of floor-pit
• Modification of infrastructure (adaption of PA20)

PA20

• 16m collimation
• 19m detector tank
• 2 sets of ³He detectors

Sample table (old table from former SANS-II)

• Adaption of existing SANS-II table
• Built for use with 15 T-magnet (vertical)
• Maximum load 700 kg