The Hamamatsu Orca flash is digital CMOS camera. It supports USB3 or direct camera link connectivity.
USB 3.0 -> 30fps
Cameralink -> 100fps
The Lima plugin controls an Orca camera (ORCA-Flash4.0 V2, C11440-22CU V2) under Windows. It is based on the Hamamatsu DCAM-API SDK.
Host OS is Windows (32 or 64 bits). The driver must be installed on the host system.
Installation & Module configuration¶
Follow the generic instructions in Build and Install. If using CMake directly, add the following flag:
For the Tango server installation, refers to PyTango Device Server.
Initialization and Capabilities¶
Implementing a new plugin for new detector is driven by the LIMA framework but the developer has some freedoms to choose which standard and specific features will be made available. This section is supposed to give you the correct information regarding how the camera is exported within the LIMA framework.
There is nothing specific. The available cameras must first be enumerated. A selected camera can then be inited. (Note that at the moment only one camera will be handled by the pluggin.)
This plugin has been implemented in respect of the mandatory capabilites but with some limitations according to some programmer’s choices. We only provide here extra information for a better understanding of the capabilities of the Orca camera.
Max image size is : 2048 * 2048
16 bit unsigned type is supported
Pixel size: 6.5µm * 6.5µm
Detector type: Scientific CMOS sensor FL-400
Supported trigger types are:
ExtGate (not yet implemented)
Possible binning values are:
1 * 1
2 * 2
4 * 4
The Subarray mode allows defining a rectangle for ROI:
X: 0 to 2044
Width: 4 to 2048
Y: 0 to 2044
Heigth: 4 to 2048
There is no shutter control available in the DCAM-API SDK.
There is no cooler sensor access or control to the cooling system via the DCAM-API SDK.
Cooling management is autonomous and can only be chosen between air or water cooling outside the sdk.
Two readout modes are available: SLOW (30fps at full frame) or NORMAL (100fps at full frame).
How to use¶
The following set of functions is used as a wrapper to the DCAM-API SDK. Code can be found in the HamamatsuDCAMSDKHelper.cpp file.
dcam_init_open(); // initialize DCAM-API and get a camera handle. dcamex_setsubarrayrect(); // Initialize the subarray mode (defines a ROI -rectangle-) dcamex_getsubarrayrect(); // Get the current subarray parameters (get ROI settings) dcamex_getimagewidth(); // Get the width of the image dcamex_getimageheight(); // Get the height of the image dcamex_getfeatureinq(); // Get the settings of a feature (ex: exposure time) dcamex_getbitsperchannel(); // Get the number of bits per channel