STREGA kick-off meeting, 11-12 May 2004, Cascina

1
STREGA kick-off meeting, 11-12 May 2004,
Cascina M2 Advanced materials and techniques
for resonant detectors

• The sensitivity of the capacitive transducer
  increases with the electric field between the
  parallel plates.
• Activity
• Improvements by means of
• special machining, cleaning and conditioning
  techniques
• low loss dielectric coatings

2
STREGA kick-off meeting, 11-12 May 2004,
Cascina M2 Advanced materials and techniques
for resonant detectors

• Status
• In the present capacitive transducers the maximum
  achieved electric field is about 107 V/m and no
  coating is used

• Goal
• 108 V/m between the electrodes at cryogenic
  temperatures if necessary with low loss coatings

• First 18 months activity
• In six months start of the room temperature tests
  on small area capacitors with high field.
• In one year start of the coating dielectric loss
  measurement at room and at cryogenic temperatures.