Radiation Therapy
Plastic Water
®
Model 74-6 Series
•
Agrees with true water within 0.5%
± 0.04% above 7 MeV
•
Won’t break or crack, even under
impact
•
Provides the closest dosimetry
characteristics to natural water,
over the entire oncology energy
range
•
Allows for easy and accurate
calibration and energy checks
•
Needs no correction factors,
making it fast, easy and convenient
to use
Plastic Water is a unique, solid
phantom material that will
change the way you perform
high-energy calibration in both
electron and photon radiation
oncology. With Plastic Water,
you’ll achieve the results you
want without spending extra
time, effort or money. Why?
Because Plastic Water is
virtually identical to water in
dosimetric properties, but easier
to use.
With plastic water, you’ll be
able to calibrate photon and
electron beams within 0.5% of
true water dose, and do it quickly, easily and cost-effectively.
High-energy calibration in radiation oncology doesn’t have to be difficult, time-
consuming or costly. With Plastic Water, you’ll never be bothered with cumbersome
water tanks or charge storage problems again.
•
Is available in a wide range of
thicknesses, starting as low as
0.1 cm, to meet all of your
calibration needs
•
Is compatible with a variety of
chambers, making it the most
versatile solid phantom material
available. (Custom cavities are
available to accommodate any ion
chamber on the market; simply
provide detailed drawings when
ordering)
Specifications
Material
Epoxy
Thickness tolerances
± 0.01 cm
Density
1.02 gm/cc
Individual slab thicknesses, model numbers, and sizes
Thickness
(cm)
20 x 20 cm
25 x 25 cm
30 x 30 cm
40 x 40 cm
Model
Model
Model
Model
0.1
74-600-2020
74-600-2525
74-600
74-600-4040
0.2
74-601-2020
74-601-2525
74-601
74-601-4040
0.5
74-602-2020
74-602-2525
74-602
74-602-4040
1.0
74-603-2020
74-603-2525
74-603
74-603-4040
2.0
74-604-2020
74-604-2525
74-604
74-604-4040
3.0
74-605-2020
74-605-2525
74-605
74-605-4040
4.0
74-606-2020
74-606-2525
74-606
74-606-4040
5.0
74-609-2020
74-609-2525
74-609
74-609-4040
6.0
74-610-2020
74-610-2525
74-610
74-610-4040
7.0
74-611-2020
74-611-2525
74-611
74-611-4040
Plastic water can be drilled to accommodate the following chambers
Model
Description
30-751, 30-752, 30-753
Wellhöfer Farmer-type Ionization Chambers
30-716, 30-744
Wellhöfer Thimble Ionization Chambers
30-749, 30-750, 30-728
Wellhöfer Roos-type Parallel Plate Ionization Chamber
2507
Nuclear Enterprises (NE) Chamber
2507/3A
Nuclear Enterprises (NE) 0.6 cm
3
Farmer Chamber with 0.25-2 mV cap
2505, 2571
Nuclear Enterprises (NE) 0.6 cm
3
Farmer Chamber without buildup cap
2581
Nuclear Enterprises (NE) 0.6 cm
3
Robust Ion Chamber
30-316, 30-317
PTW 0.3 cm
3
Ion Chamber (beam plotting)
30-349
PTW Transit Chamber
30-351, 30-352
PTW 0.6 cm
3
Farmer-type Chamber without buildup cap
30-329
PTW Markus Electron Beam Chamber
550-6
Victoreen Orthovoltage Diagnostic Chamber
580-006-WP
Victoreen 0.6 cm
3
Farmer-type Chamber without buildup cap
PR-05
Capintec Wide Range Diagnostic Chamber
PR-06C
Capintec Farmer Replacement Chamber
PR-06G
Capintec Farmer-type Chamber with fully-guarded stem
Exradin
T1 Chamber
Specifications
(continued)
Plastic Water pre-drilled for standard cylindrical chambers,
others on request
Film dosimetry cassettes
Model Description
74-608 2.0 x 30 x 30 cm
74-608-2020 2.0 x 20 x 20 cm
74-608-2525 2.0 x 25 x 25 cm
74-608-4040 2.0 x 40 x 40 cm
74-608-3290
Drilled for 30-329 PTW Markus Electron Beam
Model
Description
74-607
Plastic Water Film Cassette, 8 x 10 inch
74-607-1012
Plastic Water Film Cassette, 10 x 12 inch
Checker
74-608-3510
Drilled for 30-351 PTW 0.6 cm
3
Farmer-type
Chamber with cap
74-619 Any cavity drilled in plastic water
74-619-1000 Plug for any cavity drilled in plastic water
(Please provide specifications when ordering)
Plastic Water Sets
Plastic Water Set #1
(Model 74-613)
5.5 MeV electron calibrations, and higher
30 x 30 cm
Weight of set: 10 lb (4.5 kg)
Plastic Water Set #3
(Model 74-615)
5.5 MeV electron and photon calibrations, and photon beam
energy checks
30 x 30 cm
Weight of set: 47 lb (21.4 kg)
Qty.
Thickness (cm)
Qty.
Thickness (cm)
1
0.1
1
0.5
2
0.2
1
0.2
1*
2.0
Qty.
Thickness (cm)
Qty.
Thickness (cm)
1
0.1
2
2.0
2
0.2
1
4.0
1
0.5
1
3.0
1
1.0
1
6.0
1*
2.0
* Drilled for chamber
Plastic Water Set #2
(Model 74-614)
5.5 MeV electron and photon calibration, and higher
30 x 30 cm
Weight of set: 40.3 lb (18.3 kg)
* Drilled for chamber
Qty.
Thickness (cm)
Qty.
Thickness (cm)
1
0.1
2
2.0
2
0.2
1
2.0
1
0.5
1
4.0
1
1.0
1
6.0
