CAUTION: HANDLING OF LYNX PT, SPHINX COMPACT AND MYQA PHOENIX
Handle with care to avoid personal injury or device damage.
The device is not intended to be used in direct contact or direct relation to a patient.
Due to the sensitivity of the detectors to radiation, never store them in the accelerator room. This would considerably shorten their lifetime. Move the device into the treatment room only if you intend to make measurements.
It is possible that the detector components become activated after a radiation exposure. Handle the device according to local radioprotection regulations.
Minimum HW Requirements to Avoid Frame Loss
The large amount of data acquired by the myQA Phoenix / Sphinx Compact device requires using a
sufficiently fast CPU, a network connection, and a hard drive, as well as enough RAM. If any of these requirements is not met during operation of the device, the acquired data may be lost. In the event of data loss (completely or partially) during an acquisition, the entire measurement will be discarded, and an error massage will be displayed:
Moreover, even if the hardware is, in principle, capable of handling the acquired amount of data, such dataloss may occur intermittently due to any of the reasons below:
- Temporary network congestion (due to other devices / computers operating in the same network)
- Increased CPU / RAM / disk usage from other programs
To avoid these issues, we recommend the following hardware requirements and some best practices for operating the myQA Phoenix / Sphinx Compact:
- CPU (mobile): Intel 6th generation (Skylake) i7 CPU with 2.5 GHz, or equivalent AMD CPU
- CPU (desktop): Intel 6th generation (Skylake) i5 CPU with 3 GHz, or equivalent AMD CPU
- RAM: 16 GB
- Network: GigaBit capable Ethernet card; direct GigaBit connection
- Disk: SSD
- Operate the myQA Phoenix / Sphinx Compact with a direct ethernet connection to your computer
- During operation of the device, do not leave any resource-intensive applications running in the
background, and no other significant network traffic running in parallel
Lynx PT
Installing the Lynx driver
The Lynx driver must be installed manually. In the location, C:\ProgramData\IBA Dosimetry\LynxDriver\, double-click the file, manual_install_fc2_w10_x64.bat, and then follow the installation instructions.
Note: Currently the 2019 drivers do not work with myQA and the 2017 drivers must be installed. Please see Manually install the 2017 Drivers for more information.
Measurement setup
As shown in the photo below, the Lynx PT is usually placed on the PPS (Patient Positioning System). It is
recommended to put the effective point of measurement of the detector at isocenter. The effective point of measurement of a Lynx PT is indicated by the black join.
Example: set up the Lynx PT in a proton therapy treatment system
Connection between Lynx PT and PC
The Lynx PT is connected to a PC through the provided Ethernet PoE Injector / Firewire:
- Plug the connector with a round metal cover of the 30 m network cable to the Lynx PT and the other end of the cable to the Data Out port of the Injector.
- Plug one end of the 3 m network cable to the Data In port of the injector and the other end to the PC.
- Connect the injector to a power supply with the provided power cord.
- The green LED of the injector should turn on. If not, check the connections.
myQA Phoenix and Sphinx Compact Devices
Please see myQA Phoenix Instructions for Use or Sphinx Compact User’s Guide for the Instructions, respectively.
Defining Devices in the Software
The devices are defined in the myQA Platform > Equipment Setup workspace. The instruction is described in Chapter 4 in myQA Platform Instructions for Use, in particular:
- Define a location (Section 4.1)
- Define a machine (Section 4.2.2)
- Define a PT detector (Section 4.3.3)