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GAGG Crystal (Gd?Al?Ga?O??) – High-Light-Output Scintillator for TOF-PET & Radiation Detection

Overview Gadolinium Aluminum Gallium Garnet (GAGG, chemical formula: Gd?Al?Ga?O??) is a cutting-edge scintillation crystal celebrated for its exceptional light output, energy resolution, and chemical stability??making it a versatile solution for nuclear medicine, radiation detection, and scientific research. By efficiently converting gamma rays, X-rays, and high-energy particles into measurable visible light (530 nm), GAGG delivers high-contrast, reliable signals for precise analysis in demanding applications. Our GAGG crystals are manufactured with ultra-pure raw materials and strict quality control, ensuring consistent performance across batches. Whether for time-of-flight PET (TOF-PET) scanners or high-throughput security systems, they excel in environments requiring sensitivity, speed, and durability.

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Description

Key Advantages
Exceptional Light Output (>50,000 Photons/MeV)
One of the highest photon yields among scintillators, emitting green light (peak wavelength: 530 nm) with strong intensity proportional to incident radiation energy. This high output ensures superior signal-to-noise ratios, enabling precise energy measurement and high-resolution imaging.
Superior Energy Resolution
Combined with its high light output, GAGG offers excellent ability to distinguish between radiation energies, critical for identifying isotopes in nuclear medicine (e.g., SPECT tracers) or mixed radiation fields in industrial settings.
Non-Hygroscopic (No Moisture Sensitivity)
Unlike CsI or NaI(Tl), GAGG is completely non-hygroscopic, eliminating the need for protective coatings or hermetic sealing. This simplifies device design, reduces maintenance costs, and ensures long-term stability in humid environments (e.g., clinical labs or oilfields).
Fast Decay Time (90 ns)
Enables efficient signal processing in high-count-rate scenarios, such as busy TOF-PET centers or rapid security screenings, minimizing signal pile-up and improving data accuracy.
High Hardness (8 Mohs)
Exceptionally durable, resisting scratches and mechanical damage during handling or detector assembly??ideal for rugged applications like portable radiation monitors or oilfield exploration tools.
High Radiation Hardness (>10? rad)
Withstands intense radiation fields without performance degradation, making it suitable for particle physics experiments, nuclear power plant monitoring, and high-dose industrial imaging.
Technical Specifications
Gd?Al?Ga?O?? (GAGG) has a density of 6.6 g/cm3, an effective atomic number of 54, a hardness of 8 Mohs, a refractive index of 1.91, a light yield of ??50,000 photons/MeV, a decay time of 90 ns, an emission wavelength of 530 nm (green), a radiation hardness of ??10? rad, and is non-hygroscopic.

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