Collimator Positioner Part

Collimator Positioner Part is frequently subjected to sustained particle or photon radiation in diagnostic and therapeutic imaging systems. Radiation-induced creep, microstructural degradation, and thermal cycling can distort positional accuracy over time. This part is fabricated using radiation-resistant alloys such as 17-4 PH or titanium-based materials, with vacuum heat treatment and cold working to retain dimensional integrity. These measures ensure the Collimator Positioner Part maintains sub-millimeter alignment under exposure to neutron, gamma, or x-ray flux, supporting consistent beam collimation over prolonged usage cycles. 

Material Specification

Stainless Steel 316L (ASTM F138), Aluminum 6061-T6 (AMS 4025), Titanium 6Al-4V (ASTM F136)

Dimensional Tolerance

±0.01mm (Critical Features), ±0.025mm (Overall Profile), Bore Diameter – H6 Tolerance

Surface Finish

Ra ≤0.2µm (Bearing Surfaces), Ra ≤0.4µm (Non-Critical), Electropolished (Optional, Ra ≤0.1µm)

Thread Specifications

M3-M12 (Metric Fine), UNJF-3B (For Titanium), Thread Pitch – ±0.005mm

Heat Treatment

Solution Annealed (SS, ASTM A967), Precipitation Hardened (Al, AMS 2772), Stress Relieved (Ti, ASTM F136)

Product Description

Mechanical backlash within a Collimator Positioner Part compromises beam shaping and image fidelity in precision imaging setups. Even minimal play during direction reversal leads to angular errors and targeting deviations. The part is engineered with preloaded dual-contact bearings and torsionally stiff couplings to eliminate clearance-based error propagation. Kinematic constraint frameworks within the Collimator Positioner Part prevent hysteresis-driven offsets, delivering consistent positioning performance during high-frequency actuation or fine rotational control. 

Coating

Passivation (SS, ASTM A967), Hard Anodizing (Al, MIL-A-8625), DLC Coating (Optional)

Certification Standard

ISO 13485, IEC 60601-1 (Medical Electrical), ASTM F139 (SS Implants), ISO 9001

Flatness/Parallelism

Flatness ≤0.02mm/m, Parallelism ≤0.01mm, Perpendicularity ≤0.015mm

GD&T

Position Tolerance – ±0.01mm (MMC), Runout ≤0.005mm, Profile Tolerance – 0.02mm

Inspection Method

100% CMM (±0.002mm), Optical Comparator (10x), Surface Profilometer, X-ray (ASTM E2662)

Technical Advantages

Collimator assemblies with multiple axes of motion face dimensional inaccuracy due to tolerance stack-up. Each Collimator Positioner Part is manufactured with sub-10 µm concentricity, 5 µm surface parallelism, and CMM-verified dimensions to mitigate accumulated error. Machined reference faces, precise dowel fits, and orthogonal alignment features maintain positional repeatability across interconnected axes. These design controls ensure the Collimator Positioner Part functions as a stable, high-precision datum component in compound positioning systems. 

During gantry movement, motor acceleration, or component clamping, stress and vibration introduce structural deformation. The Collimator Positioner Part is designed using topology optimization and finite element analysis to withstand torsional, axial, and vibratory loads without losing geometric fidelity. Load-bearing sections of the Collimator Positioner Part maintain flatness and stiffness under defined operating conditions. 

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Industry Applications

Medical CT Imaging Systems

Supports dynamic beam shaping by enabling precise collimator movement along gantry axis during high-speed rotational imaging cycles. 

SPECT Gamma Camera Systems

Provides accurate detector-to-collimator alignment to maintain spatial resolution and minimize parallax errors during photon capture. 

Linear Accelerator Beam Modulation

Controls multi-leaf collimator positioning for real-time dose shaping in radiotherapy, maintaining beam conformity to tumor margins. 

Proton Therapy Beamline Equipment

Positions collimators for energy-layer-specific alignment to compensate for Bragg peak depth variations across treatment field. 

Industrial Non-Destructive Testing (NDT)

Enables precise collimator indexing in high-resolution radiographic inspection of welds, castings, and aerospace structural components. 

Synchrotron Beamline Instrumentation

Aligns secondary collimators under ultra-high vacuum for spectral resolution control in monochromator and diffractometer assemblies. 

 

Collimator Positioner Part

Cleanroom-Ready Material and Surface Specifications

Cleanroom environments demand components with minimal particle generation and low electromagnetic interference. The Collimator Positioner Part is fabricated in ISO 14644-compliant facilities using non-magnetic, low-outgassing metals. All contact surfaces are polished to Ra < 0.4 µm to suppress particle shedding and support laminar decontamination protocols. 

OEM systems often require non-standard mechanical connections or constrained spatial integration. Each Collimator Positioner Part is available with custom face geometries, asymmetric fastener patterns, and integration-ready datum offsets. Through-hole arrays, cable routing features, and dowel pin references are aligned to minimize interference with beamlines, shielding, or sensor packages. 

 

Collimator Positioner Part

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure precision in Collimator Positioner Part manufacturing for high-resolution imaging systems?

Frigate uses multi-axis CNC machining and high-precision grinding to maintain tolerances below 5 microns for critical surfaces. All parts undergo 100% dimensional inspection using calibrated CMM systems. Surface flatness and orthogonality are verified against model-based GD&T standards. This ensures sub-millimeter accuracy in axial and rotational collimator positioning. 

What quality control methods does Frigate apply to validate long-term mechanical stability of the Collimator Positioner Part?

Frigate applies mechanical fatigue simulation and accelerated life testing under thermal and vibrational loads. Material microstructure is validated post-heat treatment using SEM and hardness profiling. Parts are cycled to simulate over 10,000 operational movements to assess drift and wear. Final assemblies are tested for positional repeatability and backlash resistance. 

Can Frigate customize Collimator Positioner Parts for integration with non-standard beamline geometries?

Yes, Frigate offers fully configurable designs based on customer CAD inputs and system constraints. Custom flange geometries, asymmetric mounting holes, and sensor interface slots can be included. Finite element validation is done for all non-standard configurations to ensure rigidity and alignment accuracy. Frigate provides 3D models and tolerance documentation for seamless integration. 

 

How does Frigate handle material selection for radiation-resistant Collimator Positioner Parts?

Frigate selects materials like titanium alloys, 17-4 PH stainless steel, and low-cobalt ferrous blends based on radiation type and exposure dose. Materials are tested for radiation-induced swelling, creep, and magnetic permeability. All alloys are certified with full traceability and spectrochemical analysis. Final selection balances mechanical strength with radiation durability and low activation potential. 

 

What documentation does Frigate provide with each Collimator Positioner Part shipment?

Frigate includes full material certificates, dimensional inspection reports, surface finish validations, and cleanroom compatibility declarations. CAD models and GD&T drawings are also supplied for integration into system designs. Each part is serialized for traceability and lifecycle tracking. Optional FEA reports and thermal behavior data can be provided upon request. 

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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Collimator Positioner Part

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