Bio-Rad Personal Molecular Imager™ (PMI™) System - Manual (Page 9)

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Table 2.1. Imaging Screen Specifications and Recommended
Applications
(2) Sample Exposure Cassettes
The sample exposure cassettes ensures that close contact is made between the sample
and imaging screen. The cassettes contain a grid-marked exposure area, to which the
sample is mounted. This allows the sample to be firmly pressed against the imaging screen
to generate a high quality image.
Fig. 2.2. Sample exposure cassette and phosphor screen.
(3) Sample Tray
The glass sample tray that is included with the PMI system, is used as a scanning platform
for all K-type screens. The multi-sample tray can be purchased to accommodate metal
backed storage phosphor screens (170-7812 multi-sample tray).
(4) Screen Eraser
The screen eraser removes any residual signal or background from the imaging screen.
The complete erasure process “zeros” or “blanks” the screen to a basal level, which is
critical for maximizing sensitivity, linear response, quantitative accuracy, and image quality.
The screen eraser-K is used with the K-type screens and any other commercially available
phosphor screens which are based on the BaFBr:Eu chemistry (Fig. 2.3).
Screen
Name
Application Key Features Sizes
(cm)
Catalog
Number
Imaging
screen -
K
32 P, 33 P, 14 C,
35 S
• BaFBr:Eu formulation
• Easy-to-use format
• Compatible with standard
X-ray cassettes
• More durable
35 x 43
mounted
20 x 25
mounted
170-7841
170-7842
170-7843
170-7844
Imaging
screen -
K/Tritium
3
H • BaFBr:Eu formulation
• Sensitive to weak 3 H
signal
• Easy-to-use format
• Compatible with standard
X-ray cassettes
20 x 25 170-7845