Proton Calorimetry/Experimental Runs/2021/Apr15: Difference between revisions

Revision as of 16:02, 14 April 2021

Afternoon test at UCLH with photodiodes and CMOS sesnor.

Item	Notes
Network Hub	Set in control room to take output from experimental room ethernet connection. Control laptops connected via 5GHz WiFi.
Control Laptop x3	2x remote control for sensor and FPGA, 1 for notes/web GUI.
Ethernet Cable x 3	To connect DAQ laptops to network in the experimental room, network hub to network in control room.
Portable Enclosure	Modified Big Zarges Waterproof Wheeled Equipment Case. Features mount for scintillator stack, front and back openings for beam, patch panel with ports for SHV, BNC, SMA, USB, Camera Link cables. Hole for sensor powering. Mylar windows with Al support mounted to internal face: approximately light-tight.
Scintillator stack	X x 2 mm, Y x 2.6 mm and Z x 3 mm sheets in ascending order from the front/beam of the end of the scintillator. Sheet numbers from front to end (in beam direction): UNKNOWN.
ISDI CMOS sensor	sensor pixel dimension: 1030 x 1536. NO optical grease between scintillator and sensor. Connected to DAQ PC via Camera Link cable.
Nikon D7500	Connected to DAQ Laptop via USB cable.
DAQ laptop x2	Control sensor and photodiode acquisition.
Nexys Video FPGA development board.	For interfacing between DDC232 and PC.
Rev. 2 Texas Instruments DDC232 custom circuit board (x2)	Each housing 16x Hamamatsu S12915-16R photodiodes, coupled directly to scintillator sheets.
Gloves	For handling scintillator
Digital Caliper	For measuring PMMA air gaps

General Sensor Configuration

Base Configuration is 14 x 1 Bit
Resolution is 1030 x 1536 pixels
For selecting pixel rows in centre: Use horizontal offset (ignore DVAL to activate field) and horizontal resolution

Increase number of frame buffers

To increase the number of frame buffers to the allowed maximum, start XCAP as administrator.
Select Capture/Sequence Capture/Video to Frame Buffers/Driver Assistant
Tick box in left field, then set number of frame buffers here.

Serial Terminal instructions for ISDI sensor

Find serial terminal in PIXCI(R) tab of sensor control software.
In Controls/Options: Make sure "Send string with CR" is selected. Should be default.
In Controls/Setup: Select Serial Port: Enabled. Baud rate has to be 115200
Set low full well mode using W000300000
Set high full well mode using W000300004
Read full well mode using R0003

Continuous Field buffer setting

This setting makes sure that the buffer is filled with a new frame as they come in. If this option is not selected the sensor and software will not be synchronised and we *will record a lot of pitch black images.
Select Capture/Live Options//Live Mode/Live Video: Continuous All buffer capture

Bash script prog.sh executes FTDI.cpp and livePlot.cpp. Execute with . prog.sh 2 350 170 0 50 true in the directory Photodiodes.
- First argument is the number of DDC232s.
- Second argument is the full-scale range (FSR) in pC. Choices are: 12.5, 50, 100, 150, 200, 250, 300, 350.
- Third argument is the integration time in us. Range is 170-1455. Set in multiples of 5 us.
- Fourth argument is the number of measurements to acquire. Typically acquire 5700 measurements per second. Set to 0 for infinite loop.
- Fifth argument is the rate in Hz to update the file average.csv for ROOT/web GUI plotting.
- Sixth argument is a boolean to choose whether to display the ROOT plot.
After acquisition, close ROOT by choosing File->Quit in the ROOT window and then stopping DAQ (if in infinite loop) with CTRL-C.

Shoot-through measurements (back & front) for light calibration and level setting.
Range measurements between 70-120 MeV with 1mm steps with CMOS sensor and photodiodes.
High intensity range measurements between 70-120 MeV with 1mm steps with photodiodes at optimal light level.
Live measurement of 3cm x 3cm x 3cm treatment plan.

Range calorimeter measurements with ISDI sensor + photodiodes.

Images from sensor: TBD

Photodiode hexadecimal data: TBD

Run number	Full Well Mode	Beam Energy (MeV/u)	Range (estimated)	N particles (Hz)	Spot size (mm)	DDC232 FSR (pC)	DDC232 Integration Time (us)	Degrader WET (mm)	Comments	Thumbnail
00	high	None	-	None	None	350	170	0	background

@@ Line 45: / Line 45: @@
 | style="text-align: center;" | For measuring PMMA air gaps
 |}
-==== Range Detector Experiment ====
+==== Schematic ====
 <div class="image600px" style="text-align: center;">
 [http://www.hep.ucl.ac.uk/pbt/wikiData/images/Heidelberg_Apr2019/HITApr2019_setup.png http://www.hep.ucl.ac.uk/pbt/wikiData/images/Heidelberg_Apr2019/HITApr2019_setup.png]