CLAWS Sensor
About the CLAWS Sensor PCB
CLAWS Sensor is an open source PCB design by burbschat, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 80 × 30 mm, with 44 components from 17 distinct parts.
Other key parts include the LP2985A-10DBVR and LMH6553MRE/NOPB. By type, the board carries 20 resistors, 11 capacitors, 8 test points, 2 ICs, 1 connector and 1 jumper.
It belongs with the sensors designs in this gallery.
From the project
Simple SiPM/plastic scintillator based beam loss monitors
The sensors later have been re-purposed to detect beam loss and trigger a beam abort if there is too much of it. This application does not require very precise sensors. Further, opposed to the original design, now a larger dynamic range was desirable. To also allow for measurement of beam losses which occur for longer than a few microseconds, DC coupled analog electronics are required. The design published here was created to implement the required changes outlined above and create a system better suited to the current application at the SuperKEKB collider.
Main components on the CLAWS Sensor
CLAWS Sensor bill of materials (BOM)
44 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LP2985A-10DBVR LP2985A-10DBVx | SOT-23-5_DBV_TEX | U1 |
| 1 | LMH6553MRE/NOPB LMH6553MR/NOPB | MRA08B | U2 |
| 1 | TE_1116503-1 | TE_1116503 | J1 |
| 1 | ERJ-U1T0R00U Jumper_2_Bridged | R_2512_6332Metric | JP1 |
| 8 | TestPoint | TestPoint_THTPad_D1.5mm_Drill0.7mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 |
| 1 | S13360-1325PE | Hamamatsu_Sxxx60-13xxXX_hand_solder | D1 |
| 1 | GRM188R72A103KA01D 10nF | C_0603_1608Metric | C1 |
| 6 | GRM188R72A104KA35D 100nF | C_0603_1608Metric | C2, C5, C6, C8, C9, C11 |
| 3 | GRM188R61E106KA73D 10uF | C_0603_1608Metric | C3, C4, C10 |
| 1 | NFM21PC474R1C3D | NFM21PC225B0J3D_MUR | C7 |
| 1 | 1M | R_0603_1608Metric | R1 |
| 1 | 7M | R_0603_1608Metric | R2 |
| 6 | ERJ-3GEY0R00V 0 | R_0603_1608Metric | R3, R6, R8, R9, R11, R14 |
| 3 | ERJ-3EKF1001V 1k | R_0603_1608Metric | R4, R15, R16 |
| 1 | 390 | R_0603_1608Metric | R5 |
| 6 | ERJ-3EKF49R9V 50 | R_0603_1608Metric | R7, R10, R12, R13, R18, R19 |
| 2 | ERJ-3GEYJ201V 200 | R_0603_1608Metric | R17, R20 |
CLAWS Sensor design files
The KiCad project lives in the burbschat/claws_hardware repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/sensor/sensor.kicad_pcb
- Schematickicad/sensor/sensor.kicad_sch
CLAWS Sensor: common questions
How big is the CLAWS Sensor PCB?
The CLAWS Sensor measures 80 × 30 mm, has 2 copper layers and is 1.702 mm thick.
How many components are on the CLAWS Sensor?
44 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the CLAWS Sensor design files?
From the burbschat/claws_hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the CLAWS Sensor design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which burbschat chose for the repository.
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