FujiFilm FLA-8000, Operation Manual

Page: 52 / 137

2002. Jan. Verson 3.0
50
The imaging plate (IP) is quite a new radiation energy memory type two-dimen-
sional sensor, which has an image recording layer consisting of polyester base
material densely coated with accelerated phosphorescent fluorescent material of
fine crystals.
* Exposure
An IP accumulates and stores radiation energy while it is exposed. It is exposed
in close contact with an RI sample in a cassette like X-ray film.
* Scanning
The recording surface of an exposed IP is scanned with a laser beam inside the
FLA-8000 and emits fluorescent light according to the exposure level. A photo-
multiplier tube (PMT) detects the fluorescent light and converts it into electric
signals. A radiation image recorded on the IP during exposure is read as digital
image information at the maximum resolution of 10
u
m per pixel (100 pixels/ mm)
and recorded in the analyzer unit.
* Erasure
You may reuse a general-purpose IP by erasing an after-image.
The FLA-8000 may use the BAS-SR 0813 (85 mm x 127 mm) only at the time when
this operation manual is prepared.
* Use conditions
It is necessary to stick a non-curled IP to the carrier free from separation.
A separated IP may cause a failure of the equipment.
1.3 Checking the exposure surface
The overall bluish white surface is the exposure surface. A sample is
brought into contact with and radiation is irradiated onto this surface.
1. Usage of IPs
1.1 About IPs
1.2 Available IPs
1.3 Checking the exposure
surface
1. Usage of IPs
Exposure surface: Bluish white
Exposure surface of IP