Applied phosphor products

Outline

Toshiba Materials has developed highly sensitive, reasonably priced GOS scintillators for general industrial use on the basis of accumulated technologies obtained through developing high-performance scintillators for medical use.

Advantages

• High sensitivity and short persistence
• Environmentally conscious products with no hazardous substances
• The sensitivity has only a low dependency on temperature changes.
• High X-ray-stopping ability
• Responding to the spectral sensitivity characteristics of various photo sensors such as photo diodes, charge-coupled device image sensors (CCDs) and photographic films

Applications

• Non-destructive radiographic testing equipment such as X-ray computed tomography (CT) scanners
• Analysis equipment

FAQ

FAQ on scintillators

Outline

Intensifying screens are made of highly sensitive phosphors and used with photofluorography. When we are X-rayed, they reduce irradiation to one hundredth of the ordinal irradiation without intensifying screens.

Advantages

• Our intensifying screens have high sensitivity and high sharpness by our technology that makes a high-density phosphor layer and prepares optimal grain size distribution.
• Sensitivity and sharpness are further improved by our structural designing that ensures effective light reflection and X-ray absorption characteristics.
• The surfaces of intensifying screens are protected with a special film to prevent darts and scars and to render handling easy.

Layer structure of intensifying screen and phosphor

Sectional structural scheme of intensifying screen

Types and phosphor materials of intensifying screens

• TO-type screens use gadolinium oxisulfide with terbium (Gd2O2S:Tb) for orhto-type phosphor emitting green light. (Toshiba Ortho Type)
• E- and D-type screens use calcium tungstate (CaWO₄) emitting blue light.
• Q-type screens use barium fluoro chloride with europium (BaFCl:Eu) emitting blue light.

FAQ

FAQ on intensifying screens and fluorescent screens

Outline

Electroluminescent (EL) panels are surface light sources that are activated by charging an alternative current to phosphors. Toshiba Materials offers thin and flexible EL panels for LCD back lights of various-sized displays to meet customers' requests.

Advantages

• Thin and light
  Our EL panels are 0.7 mm thick and very suitable for reducing the space needed for devices that require high-density mounting.
• Flexible structure enabling deformation and curved surface lighting
• High-efficiency lighting (EL panels are high-efficiency lighting by minimal heat loss. They work in combination with batteries and miniature inverters.)
• High reliability (EL panels have vibration resistance with no abrupt loss of brightness.)

FAQ

FAQ on inorganic EL panels