Flat Panel Detectors (FPDs) are at the heart of digital radiography systems, playing a key role in image clarity, acquisition speed, and diagnostic accuracy. This guide explores the two core types of FPDs—Indirect and Direct conversion—and includes international terminology, feature comparisons, and downloadable resources for healthcare professionals, biomedical engineers, and buyers.
Working Principle:
X-rays hit a scintillator layer (typically Cesium Iodide or Gadolinium Oxysulfide).
The scintillator converts X-rays into visible light.
The light is then captured by a photodiode array and read by a Thin Film Transistor (TFT).
Advantages:
Cost-effective
Suitable for general imaging and portable/mobile units
Disadvantages:
Slight image blurring due to light scatter
Lower image sharpness compared to direct detectors
Working Principle:
X-rays are directly converted into electrical charge using a photoconductor (typically amorphous selenium/a-Se).
The charge is collected by a TFT or CMOS array.
Advantages:
Higher resolution, sharper images
Excellent for fine-detail imaging (e.g., mammography)
Disadvantages:
Higher cost
Typically larger and more sensitive to handling
| Country | Language / Term |
|---|---|
| Bangladesh | ফ্ল্যাট প্যানেল ডিটেক্টর |
| Brazil | Detector de painel plano |
| Nigeria | Oluwari panẽli (Yoruba) |
| Peru | Detector de panel plano |
| Kenya | Gundua paneli tambarare |
| Malaysia | Penderia panel rata |
| Philippines | Flat panel detector (Filipino: Direktang o Hindi Direktang) |
| Vietnam | Đầu dò bảng phẳng |
| South Africa | Platpaneeldetektor (Afrikaans) |
| Ecuador | Detector de panel plano |
| Ethiopia | ፀተሮ ፓነል መለኪያ |
| Ghana | Remu panel fitaa (Twi) |
| Turkey | Düz panel dedektör |
| Uganda | Ekidodo kya panel flat |
| Tanzania | Kizibonye paneli tambarare |
| Zimbabwe | Detector yeflat panel (Shona) |
| Sri Lanka | පැනෙල් හඳුනාගැනීමේ උපාංගය (Sinhala) |
| Germany | Flachbettdetektor |
| Spain | Detector de panel plano |
| Italy | Rivelatore a pannello piatto |
| Saudi Arabia | كاشف لوحة مسطحة |
| Feature | Indirect FPD (Scintillator) | Direct FPD (Photoconductor a-Se) |
| Image Sharpness | Moderate | High |
| Radiation Efficiency | High | Slightly lower |
| Cost | Lower | Higher |
| Light Spread | Present | Minimal |
| Best Use Case | General radiography, portable | Mammography, fine-detail imaging |
| Durability | Higher | More fragile |
Flat panel detectors can be integrated into:
Fixed Digital Radiography Systems
Mobile Trolley Units
Veterinary Imaging Equipment
For example, Fatali Medical offers:
Retrofit kits for analog systems
PDF Downloads:
Datasheets Available Upon Request:
DR Panel Specs (CsI & a-Se)
Software Interface Guide
PACS Integration Manual
Need help selecting the right FPD for your application? Contact Fatali Medical for personalized assistance or distributor pricing.
📧 ysftal@fatal.com.cn | 📞 +86‑18125786345
