Final answer:
The output phosphor is bonded to the input phosphor to intensify the light signal in devices like X-ray image intensifiers. They are connected by a thin, transparent adhesive layer that is vital for efficient energy transfer and image integrity.
Step-by-step explanation:
The output phosphor is bonded directly to the input phosphor with a thin, transparent adhesive layer. In devices such as traditional X-ray image intensifiers, the input and output phosphors are critical components that work in tandem to convert X-rays into visible light, which is then intensified to produce a brighter image.
The input phosphor absorbs X-ray photons and emits lower-energy photons (visible light), while the output phosphor is coupled directly to it and serves to enhance the light signal. The transparent adhesive ensures that the energy transfer is efficient and maintains the integrity of the image being reproduced.
This process is vital in medical imaging where it allows for the creation of clearer, more detailed images that doctors can use for diagnosis. Not only is the quality of the adhesive layer important to maintain close contact between the phosphors, but it also has to be made of a material that does not interfere with the passage of light between them.