RaySafe Pro-Fluoro 150 handleiding
Handleiding
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© 2022.01 Unfors RaySafe 1921059-2.2
TECHNICAL SPECIFICATION
The phantom is made of a 17 mm thick PMMA (Polymethyl methacrylate) plate and a 1.5 mm
thick copper plate. The phantom complies with DIN 6868 150, DIN 6868-4 and IEC 61223-3-1.
1. Dynamic copper step wedge, consisting 17 steps made of different Cu thickness: 0.00,
0.18, 0.36, 0.54, 0.74, 0.95, 1.16, 1.38, 1.50, 1.73, 1.96, 2.21, 2.45, 2.70, 2.96, 3.22, 3.48
mm. The PMMA is thinned out at the site of the copper step wedge: 4 mm PMMA in
step 1–8, and 12 mm at step 10–17.
2. Spatial resolution test pattern with 3 periods for each resolution: 0.6, 0.7, 0.8, 0.9, 1.0,
1.2, 1.4, 1.6, 1.8, 2.0, 2.2, 2.5, 2.8, 3.1, 3.4, 3.7, 4.0, 4.3, 4.6, 5.0 LP/mm. The pattern is
made of 100 μm thick.
3. Eight circular detail contrast objects, Ø 10 mm, in the homogeneous field. The objects
are air cavities in the PMMA: 0.4, 0.6, 0.8, 1.2, 1.7, 2.4, 3.4, 4.0 mm deep.
At 75kV and with additional 25mm Al objects produce following contrasts: 0.9 %, 1.3 %
1.8 %, 2.8 %, 4.0 %, 5.6 %, 8.0 %, 9.4 %.
4. 17 circular detail contrast objects on copper step wedge, Ø 4 mm, air cavities with a
depth of 2.5 mm in PMMA on every step of the copper step wedge.
5. Collimation lines for alignment of light and x-ray field. Dimensions: 26×26; 18×24; 14×18
cm. Circular diameter dimensions: 26, 24, 21, 18, 16 cm.
TEST PROCEDURE
This is an example. Be sure to comply with your local regulations.
1. Position the phantom on the table.
Use FTD of about 1m. The center
and main axis should align with the
light marker of the apparatus.
2. Narrow the light field (which
should represent the X-ray field) to
the chosen markings on the
phantom.
3. Check that the machine has AEC
turned on.
4. Use an additional 25 mm aluminium filter (patient equivalent) for the test for the tube
voltage to reach the desired range (for example 75 ± 7 kV according to DIN 6868-150).
Mount the Al 25 filter in rails on the collimator.
For test above 100kV use additional 1mm Cu filter.
Bekijk gratis de handleiding van RaySafe Pro-Fluoro 150, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | RaySafe |
| Model | Pro-Fluoro 150 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 2900 MB |
