OPTIONAL ITEMS FOR THE ISIS QA-1 GEOMETRIC QA PHANTOM
All inserts are 4 cm in diameter and 14 cm long. They are made of clear acrylic with a rubber o-ring at one end to keep the insert snug in the phantom cube. Each insert is labeled with the item number, description and density.
ADJUSTABLE TABLE CENTERING BAR
Item #
Description
681-162
Adjustable Table Centering Bar
This bar is used on couches other than the Varian EXACT™ or Med-Tec IPPS™ for proper alignment of the phantom cube. It is adjustable from 37 cm to 68 cm wide. There is a scale on the bar with zero at center. The scale has mm and cm markings on both sides of zero. T-squares at each end of the bar are placed on the side of the couch and adjusted so each side is equal distance from zero on the scale. Knobs at both ends of the bar are loosened and tightened to make adjustments. There is an alignment pin on one side of the bar to connect it to the leveling plate. An alignment groove on the other side bar is to connect the alignment bar to the table centering bar.
INSERT, EXRADIN A-12 CHAMBER
Item #
Description
681-104-A12
Insert, Exradin A-12 Chamber
INSERT, EXRADIN A14SL CHAMBER
Item #
Description
681-104-A14SL
Insert, Exradin A14SL Chamber
INSERT, TUNGSTEN BALL
Item #
Description
681-106
Insert, Tungsten Ball - 5.5 mm Diameter
This insert has a tungsten ball with a diameter of 5.5 mm (7/32”) in the center of the insert.
INSERT, LIQUID FILLABLE
Item #
Description
681-108
Insert, Liquid Fillable
This insert has a 2.5 cm diameter hollow space in the center of the insert. There are two fill holes drilled at an angle into the hollow space. Each fill hole has an o-ring and screw to hold the liquid in the space The Customer fills the space with a liquid of their choice.
Insert, Multi-Density
Item #
Description
Physical Density
Electron Density cc x 1023
Electron Density Relative to H2O
681-107
Insert, Multi-Density Holder
681-107-6
Lung Inhale
0.20
0.634
0.190
681-107-7
Lung Exhale
0.50
1.632
0.489
681-107-8
Bone 800 mg/cc
1.53
4.862
1.456
681-107-9
Water
1.01
3.346
1.002
681-107-10
Adipose (Fat)
0.96
3.170
0.949
681-107-11
Breast (50% Gland / 50% Adipose)
0.99
3.261
0.976
681-107-12
Muscle
1.06
3.483
1.043
681-107-13
Liver
1.07
3.516
1.052
681-107-14
Trabecular Bone - 200 mg/cc
1.16
3.730
1.117
681-107-15
Dense Bone - 1000 mg/cc
1.66
5.243
1.570
681-107-16
Dense Bone - 1250 mg/cc
1.83
5.718
1.712
681-107-17
Dense Bone - 1500 mg/cc
2.00
6.209
1.859
681-107-18
Dense Bone - 1750 mg/cc
2.17
6.698
2.005
681-107-19
*Coritcal Bone
1.93
5.956
1.780
681-107-20
**Titanium
4.51
12.475
3.735
681-107-21
***Aluminum
2.718
--
--
* All Bone references 10 mm diameter in H2O insert. ** Titanium references 6 mm diameter in H2O insert. *** Aluminum references 9.5 mm diameter in H2O insert.
The Multi-Density holder insert accommodates 8 density plugs (2.5 cm diameter x 1.5 cm thick). An acrylic end plug and o-ring on each end of the insert holds the density plugs in place. This insert is custom made - the customer must specify material densities needed and the order of placement in the insert when ordering. Density plugs are sold separately.
INSERT, ISOTOPE IN CENTER
Item #
Description
681-109
Insert, Holds Isotope In Center
681-114
Holder for NA-22 Isotope
681-115
NA-22 Isotope
This insert accommodates a holder the NA-22 Isotope is placed into. The holder of the insert keeps the NA-22 in the center of the insert.
Markus or Roos chamber holder
Item #
Description
681-171
Holder, Markus Chamber
681-172
Holder, Roos Chamber
This holder allows a Markus or Roos chamber to be held in place with the nylon thumb screw. Different density plugs are placed on top of the chamber and exposed to radiation. This holder works in conjunction with Item 681-107 Multi-Density Insert.
INSERT, CUSTOM FOR ION CHAMBER
Item #
Description
681-
Insert, Custom Ion Chamber
The Custom Chamber Inserts are made to order per customer specification. The customer must specify the ion chamber manufacturer, model number and description that insert is to be drilled for.
ALIGNMENT PATTERN IN TUNGSTEN
Item #
Description
681-158
Alignment Pattern in Tungsten
Place the alignment pattern over film to check multileaf and field sizes. Circles can be used on simulator tv monitor to set horizontal or vertical adjustments.
FILM PHANTOM ASSEMBLY
Item #
Description
681-130
Film Phantom Assembly
The film phantom unit includes a film phantom base, 1.5 cm and 5.0 cm acrylic phantom blocks and a steel marker pin. The phantom cube and the 1.5 cm and 5.0 cm phantom blocks are placed on the film phantom base. A ready pack film is placed between the 1.5 cm and 5.0 cm phantom blocks and the steel marker pin is used to mark film for orientation. Once in the correct position, the film is exposed several times at different gantry angles which produces a star pattern on the film for verification of the machine isocenter.
MINI PHANTOM
Item #
Description
681-180
Mini Phantom
This Optional Mini Phantom can be used with the Alignment Bar or the Adjustable Table-Centering Bar to verify the coincidence of the lasers and the crosshairs and to check for gantry sag and optical back pointer position when the gantry is rotated ± 90°. The phantom can be used in the flat or vertical position. It has a “L-shaped” pin groove that sits on the alignment pin on either bar. It is scribed on four sides with 2 mm white painted lines. There are holes for tungsten pins on four sides of the phantom. Four 1.5 mm dia tungsten pins are included.
Specifications:
Material: Clear Acrylic Dimensions: 15cm x 15cm x 5cm thick
ELECTRONIC SELF-LEVELING 5-BEAM LASER
Item #
Description
710-850
Electronic Self-Leveling 5 Beam Laser
This unit has 5 self-leveling, orthogonal (90 degree) beams that provide simultaneous plumb, level and square reference points. Used for laser alignment checks.
HIGH PRECISION GANTRY LEVEL
Item #
Description
352-200
High Precision Four-Sided Gantry Level
352-201
Vinyl Case for High Precision Gantry Level
The four-sided High Precision Gantry Level is used to check the gantry angle indicators at four locations: 0, 90, 180, and 270 degrees, with accuracy to 1/40 of a degree.
This Optional Mini Phantom can be used with the Alignment Bar or the Adjustable Table-Centering Bar to verify the coincidence of the lasers and the crosshairs and to check for gantry sag and optical back pointer position when the gantry is rotated ± 90°. The phantom can be used in the flat or vertical position. It has a “L-shaped” pin groove that sits on the alignment pin on either bar. It is scribed on four sides with 2 mm white painted lines. There are holes for tungsten pins on four sides of the phantom. Four 1.5 mm dia tungsten pins are included.
