Scintillation Crystals and Arrays for Medical Imaging
Medical imaging scintillators should be selected around the detector’s measurement and optical interface. PET timing, SPECT energy measurement and X-ray imaging place different demands on the crystal, array geometry and readout.
ATR Crystal supplies scintillation crystals and pixelated arrays for OEM detector development and imaging research. Send the imaging method, material preference, component drawing, photosensor details and quantity for a specification review.
Choose by Imaging Method
PET and Time-of-Flight PET Detector Development
LYSO(Ce) scintillator arrays are a starting point for PET and TOF-PET detector designs. Specify pixel cross-section, crystal length, final pitch, surface finish and the readout arrangement. If the design measures depth of interaction, describe the optical surfaces and sensor placement used to obtain that information.
BGO arrays provide another material option to compare against the detector’s stopping-power, light-collection and timing requirements. A crystal’s scintillation decay time is not the detector’s coincidence timing resolution. Any timing target should include the sensor, coupling, electronics and measurement conditions.
A published BGO and LYSO detector comparison reports results for defined surface finishes, crystal thicknesses and SiPM readout conditions. Use those conditions when interpreting a detector result rather than treating it as a universal material guarantee.
SPECT and Gamma Camera Materials
NaI(Tl) scintillation crystal is an established material for gamma-camera and SPECT designs. Define the active area, crystal thickness, light-output uniformity and energy-resolution test conditions. For a position-sensitive detector, include the light-guide or photosensor layout and the intended light-sharing scheme.
NaI(Tl) is hygroscopic. Specify the package outline, optical window and moisture protection alongside the crystal geometry. Existing encapsulated NaI(Tl) formats provide reference configurations; a large-area camera geometry needs a separate drawing and feasibility review.
X-Ray CT and Radiographic Detector Components
CdWO4 arrays can be reviewed for CT detector layouts, while CsI(Tl) arrays are options for X-ray detector development. State the X-ray energy range, exposure conditions, integration time and required afterglow test. Match the emission and light-output face to the proposed photosensor.
For radiographic designs, distinguish a machined pixel array from a deposited columnar screen. Their geometry and optical behavior differ. Describe the required structure in the inquiry so the quotation addresses the intended component.
Define the Array Geometry and Optical Interface
Pixel size and final pitch are different quantities. The drawing should show how reflector gaps, alignment and the finished footprint match the sensor layout.
| Design parameter | Information for the specification review |
|---|---|
| Active geometry | Crystal dimensions or pixel cross-section and length, with tolerances and the required active area. |
| Array layout | Pixel count, final pitch, reflector gap and overall outline; include offset or multilayer geometry where applicable. |
| Surfaces and reflectors | Identify polished or other requested surfaces, reflector material, optical isolation and intended light sharing. |
| Readout interface | Sensor model or active-area dimensions, one-to-one or shared readout, coupling arrangement and light-output faces. |
| Package and mounting | Housing outline, window clear aperture, mounting features and moisture protection where required. |
| Acceptance tests | Requested light-output uniformity, energy or timing measurements, or afterglow criteria, with test conditions. |
For broader material trade-offs, see the scintillation crystal selection guide. Processing feasibility and acceptance criteria are confirmed for the quoted configuration.
Request a Medical Imaging Scintillator Quotation
Send your drawing or specification sheet together with:
- The imaging method and radiation energy range.
- The preferred crystal material and array or package geometry.
- The photosensor interface, surface finish and reflector requirements.
- The performance targets and proposed inspection conditions.
- Sample and production quantities, plus the requested delivery date for review.
Identify whether the request covers a bare crystal, a pixelated array or an encapsulated crystal component. This establishes the quotation scope and the interfaces to your detector design.
Send your medical imaging material requirements, or email drawings to sales@atrscintillator.com.