Philips 3T Achieva Visual Cortex fMRI brain scan BOLD
MONK RF signal audio tone juice controller juice dispenser solenoid EMG neuron AP fMRI BOLD visual task IR camera CPU Cortex/LabView monitor
Non-human primate of choice: anatomical & physiological likeness ease of maintaining & breeding in captivity No harm / minimize discomfort IACUC (Institutional Animal Care and Use Committee) IRB (Institutional Review Board) approval Ethics Research Training (exam # )
Wim Vanduffel (2001) Mark Pinsk (2004) Crist Instruments (current)
Improvements: mechanical design, materials selection, audio reinforcement, component integration
General PropertyASTM TestTypical Value Specific GravityD Tensile Strength YieldD6388, ,000 Tensile ModulusD638340,000 Izod Impact - NotchedD Hardness - RockwellD785M70 Deflection 264psiD Deflection 66 psiD Co. Thermal ExpansionD6963.7X10 -5 General PropertyASTM TestTypical Value Specific Gravity D Tensile Strength YieldD63810,000 Tensile ModulusD638400,000 Izod Impact - NotchedD Hardness - RockwellD785M94 Deflection 264psiD Deflection 66 psiD Co. Thermal ExpansionD6963.4X10 -5 Polycarbonate material properties Acrylic material properties
Max. Available DiameterPolycarbonateAcrylic Applied Plastics Co8” Industrial Plastic Supply, Inc4”24” Inplex LLC3.5”n/a McMaster-CarrMcMaster-Carr**8” (±.04)18” (±.08) Modern Plastics8” (±.03)6” Scandia Plastics Inc8”n/a US Plastics4”12” Tubing Availability **preferred company
CAST ACRYLIC (LUCITE) TUBE outside diameter: 15” 16” 18” Length 24" Length Tolerance +.25" Inside Diameter 14-3/4" Outside Diameter 15" Outside Diameter Tolerance ±.08" Wall Thickness.125" Wall Thickness Tolerance ±.02" Acrylic Material Cast Acrylic Part No K317 Cost: $ Length 24" Length Tolerance +.25" Inside Diameter 15-1/2" Outside Diameter 16" Outside Diameter Tolerance ±.08" Wall Thickness.25" Wall Thickness Tolerance ±.025" Acrylic Material Cast Acrylic Part No K418 Cost: $ Length 48" Length Tolerance +.25" Inside Diameter 15-1/2" Outside Diameter 16" Outside Diameter Tolerance ±.08" Wall Thickness.25" Wall Thickness Tolerance ±.018" Acrylic Material Cast Acrylic Part No K438 Cost: $ Length 48" Length Tolerance +.25" Inside Diameter 17-1/2" Outside Diameter 18" Outside Diameter Tolerance ±.08" Wall Thickness.25" Wall Thickness Tolerance ±.018" Acrylic Material Cast Acrylic Part No K439 Cost: $ Length 24" Length Tolerance +.25" Inside Diameter 17-1/2" Outside Diameter 18" Outside Diameter Tolerance ±.08" Wall Thickness.25" Wall Thickness Tolerance ±.025" Acrylic Material Cast Acrylic Part No K419 Cost: $ Source:
grate/perforated slab of steel or aluminum disposable, removable lining across bottom vertices glued and waterproof recessed ¼”, 20 thread screws rapid prototyping machine ¼”, 20 thread, nylon screws aluminum, brass, plastic stainless steel approximate piano hinge along tube (?)
= isocenter, cm from base Philips 3T Achieva NOT DRAWN TO SCALE Based on our measurements of the bohr… Tube (15” diameter) radius = 19.05cm Tube (16” diameter) radius = 20.32cm Tube (18” diameter) radius = 22.86cm
Philips 3T Achieva NOT DRAWN TO SCALE
Philips 3T Achieva NOT DRAWN TO SCALE
Units = inches
Mechanical design model, checking with Princeton Macaque measurements: kg, 28-32” prone Chair: landmark, loading, attach chair weight final design revisions machine the chair Mock scanner environment Monkey training RF coil selection & construction Functional components: QFDs & selection