Three-dimensional water tank

The radiation field dose distribution parameters of X-ray and electronic lines of various types of medical linear accelerators can be scanned and measured with the beam dose analysis system and the dual-channel dosimeter, as well as the beam parameters of MM50 cyclotron, X-knife and 60Co teletherapy machine.

1. Acceptance test after installation of radiotherapy equipment;

2. Data acquisition and conversion of various radiotherapy planning systems;

3. Testing after repair or replacement of main parts of radiotherapy equipment;

4. Regular radiotherapy quality assurance and quality control testing.

Main purpose:

The equipment is the necessary equipment for the performance measurement and inspection of radiotherapy equipment, and is suitable for all complex or conventional measurement work of X-ray and electronic line by radiotherapy physical room and radiotherapy detection institution, such:

YD-200 three-dimensional water tank is suitable for the measurement of dose distribution in deep X-ray treatment machine, cobalt 60 treatment machine, electron linear accelerator electron and photon water. Equipped with a dedicated manual/electric lifting platform and positioning adjustment device, so that the operation is handy, to achieve the tank height, level of precise adjustment and positioning. The cart and wheel locking mechanism reflect the thoughtful and meticulous design. The transmission mechanism of the water tank is positioned quickly and accurately, and the electric control mechanism is convenient and reliable. The clear hand-controlled box is more convenient to control.

Technical indicators:

Water tank size (type I):400 × 400 × 500mm (scanning range: 250mm horizontal and 350mm vertical)

Water tank size (Type II):600 × 600 × 500mm (scanning range: 300mm horizontal and 350mm vertical)

· PMMA water tank wall thickness: 15mm

· 3D scanning mechanical structure for cantilever mode

· Spatial positioning accuracy: ≤ 0.1mm

Dose measurement accuracy ≤ ± 0.2%

Scanning speed: 15 mm/s (can be set according to demand)

Scanning mode: point movement continuous scanning

· Time constant of double-pass electrometer:<10ms

Measuring ray range: photon beam: Co-60 1.25MeV; high energy X-ray 1 ~ 50MeV; electron beam: 1MeV ~ 50MeV; medium energy X-ray: 60kV ~ 350kV (in air).

Technical features:

1, the use of imported waterproof motor, no special maintenance, reliable operation, long service life.

2. The unique anti-liquid level disturbance device keeps the water surface height unchanged during scanning.

3. The control software can perform X,Y,Z axis and dual diagonal scanning. The characteristic parameters of PDD and the parameters of the Profile curve can be calculated in time, and the position and measurement data of the detector can be displayed at the same time.

4. The analysis software can quickly and automatically scan the relative dose distribution of rays in the water mold, such as PDO, OAR, TMR, etc., and numerize the results to automatically calculate the half-height width, penumbra, symmetry, flatness, depth of the maximum dose point and other parameters of the rays.

5. The time constant of the dual-channel electrometer is less than 1ms, and the resolution is less than 1fA, which is suitable for rapid continuous scanning.

6. The mobile water storage tank can fill or suck the water in the water tank within 10 minutes.