cosmic shower detector v2

2 years ago 1290
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Description

The MuonPi Project utilizes an inexpensive Raspberry Pi B+ plug-on module for particle and nuclear physics detectors aimed for measuring muons from atmospheric showers triggered by high energetic cosmic particles. The goal is to set up a distributed network of these detector stations in order to determine the energy, timing, and eventually the origin of the primary particles. To do so, the detected events are timestamped utilizing an on-board GNSS receiver with a precision in the nanosecond range to search for event coincidences between other detectors in the network off-line.

The circuit comprises two inputs for typical input signals (PMTs, SiPMs etc.) with positive or negative pulses (negative input with mounted inverting amplifier U1) of few hundreds of mV amplitude and several tens of nanoseconds length. Each channel comprises adjustable threshold discriminators for fast timing and amplitude processing with a fast peak-detector (channel 1 only) for amplitude measurement with the on-board slow sampling ADC. Timestamping of the single channels or a logic coincidence thereof (XOR or AND) is achieved with the interrupt input of a U-Blox NEO-M8N GNSS module with few tens of nanoseconds precision.

This version of the circuit utilizes a cheap commercial DC/DC upconverter (XL6009) as plug-in module for bias voltage generation for the SiPM photo sensors (available eg. from eBay). In contrast, version 1 comprises an on-board bias voltage generator with software-adjustable output voltage (0...40V) via DAC MCP4728. The newer version 3 includes both of these options. This version is the current working version. However, if you like to build and use this hardware, consider the more recent Version 3, instead.

Status: V2.1 design is complete, PCB was produced and tested. Device is operational.

Documents

digital pulse processor

interface

power supply

analog pulse processor ch1

analog pulse processor ch2

gps_rx

shower detector pcb v2

shower detector pcb v2.1 annotated

shower_detector_pcb_v2.1_annotated

BOM

ID Name Designator Footprint Quantity
1 LM6132A U104 SOIC8 1
2 1M R126,R506,R508,R105,R205 0805 5
3 100 R125,R14,R110,R701 0805 4
4 1Meg R124 0805 1
5 10Meg R120 0805 1
6 1p C1 RAD-0.1 1
7 2p C2 RAD-0.1 1
8 10p C3 RAD-0.1 1
9 10 R119,R515,R700 0805 3
10 1 R5,R6,R7 AXIAL-0.3 3
11 100k R100 AXIAL-0.3 1
12 5 V103 HDR1X2 1
13 0.1 V102 HDR1X2 1
14 2.2p C6 RAD-0.1 1
15 TLV3501 U102 SO-8 1
16 0.2 V101 HDR1X2 1
17 PWL(0 0 1u 0 1.001u -0.2 1.10u -0.2 1.101u 0 5u 0 5.001u -0.5 5.1u -0.5 5.101u 0 10u 0 10.001u -0.1 10.1u -0.1 10.101u 0 15u 0 15.001u -1.0 15.10u -1.0 15.101u 0 20u 0 20.001u -0.15 20.1u -0.15 20.101u 0) AC 1 0 V100 HDR1X2 1
18 47n C100,C101,C200 0805 3
19 470p C7 0805 1
20 4.7k R15,R113 0805 2
21 1n C8,C302,C303,C503,C504 0805 5
22 1k R16,R300,R301,R302,R303,R401,R405,R406,R408,R409,R413,R511,R104,R118,R116 0805 15
23 10p C9 0805 1
24 10n C10,C520,C501,C102,C111,C108,C106,C202 0805 8
25 470 R17,R103,R107,R109,R204 0805 5
26 220 R18,R102,R202 0805 3
27 10k R19,R504,R512,R513,R516,R509,R111 0805 7
28 MAX4416AMP U4 SOIC8 1
29 33 C300,C301,C306,C307 0805 4
30 TP27 P302 HDR-1X1/2.54 1
31 TP25 P303 HDR-1X1/2.54 1
32 TP30 P304 HDR-1X1/2.54 1
33 74LVC1G86DBV U303 SOT23-5L 1
34 TP26 P305 HDR-1X1/2.54 1
35 74LVC1G02DBV U304 SOT23-5L 1
36 74AC151M U305 SOIC16N 1
37 470k R305,R304 0805 2
38 100n C304,C305,C507,C508,C509,C510,C511,C512,C513,C514,C517,C518,C519 0805 13
39 TP31 P306 HDR-1X1/2.54 1
40 51 R306,R307,R101,R201 0805 4
41 SN74LV221AD U300,U301,U306 SOIC-16_150MIL 3
42 1k5 R400 0805 1
43 24AA02UIDT-IOT U400 SOT23-5 1
44 ADS1015IDGSR U401 MSOP10 1
45 MCP4728-EUN U402 MSOP10 1
46 LM75BIM-3 U403 SOIC8 1
47 RASPBERRYPI-B+-GPIO JP400 2X20 1
48 DAC4 P401 HDR-1X1/2.54 1
49 OLED-Display P400 HDR-4X1/2.54 1
50 TimeP LED409 LED-0805 1
51 BiasEn LED408 LED-0805 1
52 St2 LED406 LED-0805 1
53 St1 LED405 LED-0805 1
54 PCA9536D U404 SOIC-8 1
55 Ch2 LED404 LED-0805 1
56 Ch1 LED403 LED-0805 1
57 680 R404,R403 0805 2
58 VCC LED402 LED-0805 1
59 +5V LED401 LED-0805 1
60 4k7 R410,R411,R416 0805 3
61 SOLDERJUMPERNO SJ1 SJ_2S-NO 1
62 FIDUCIAL_0.6-1.2MM X1,X2,X3,X4 FIDUCIAL0.6-1.2 4
63 dnm R412 0805 1
64 3k9 R414,R415 0805 2
65 CAT24C32WI-GT3 U405 SOIC-8_150MIL 1
66 10M R505,R507 0805 2
67 6k8 R510 0805 1
68 1u C506,C103,L100,C203,L200 0805 5
69 TP1 P501 HDR-1X1/2.54 1
70 10u C516 0805 1
71 TPS22944DCKR U503,U504 SOT353 2
72 FAULT1 P502 HDR-1X1/2.54 1
73 FAULT2 P503 HDR-1X1/2.54 1
74 GND P0,P1,P2 HDR-1X1/2.54 3
75 XL6009 Module U505 XL6009_HOLES 1
76 BAT54 KL1 D501,D502,D102,D100 SOT-23(SOT-23-3) 4
77 2N7002 Q501,Q100,Q101,Q102 SOT-23(SOT-23-3) 4
78 SMACONNECTOR_EDGE_UFL X5,X6,X100,X200,X7 SMA_EDGELAUNCH_UFL 5
79 TLV3544IDR U100 SOIC14 1
80 MCP6L02T-ESN U501 SOIC8 1
81 2.2n C104,C110 0805 2
82 100k R106,R114,R108 0805 3
83 100p C105,C107 0805 2
84 150 R117 0805 1
85 TP12 P102 HDR-1X1/2.54 1
86 TP14 P104 HDR-1X1/2.54 1
87 TP16 P106 HDR-1X1/2.54 1
88 TP17 P107 HDR-1X1/2.54 1
89 TP13 P103 HDR-1X1/2.54 1
90 TP11 P101 HDR-1X1/2.54 1
91 22 R115 0805 1
92 BAT54SLT1 D104 SOT23-3 1
93 220p C109 0805 1
94 47k R112 0805 1
95 TP15 P105 HDR-1X1/2.54 1
96 TLV3502AID U2 SOIC8 1
97 MAX4416ESA U1 SOIC8 1
98 TP22 P202 HDR-1X1/2.54 1
99 TP23 P203 HDR-1X1/2.54 1
100 TP21 P201 HDR-1X1/2.54 1
101 TLV3502 U2 SOIC8 1
102 UBLOX_NEO-6_UBLOX_NEO-6P U700 UBLOX_NEO-6P 1
103 27n L700 0805 1
104 1N4148 D700 D-SOD123 1
105 120 R702,R703 0805 2
106 CR1220-2 B700 BATTERY-2 1
107 0R R1 0402 1
108 BS-8-1 B1 BATTERY-5 1

Attachments

Filename Download
cosmic_det_pcb_v2.2.png
Schematic_cosmic-shower-detector-v2_20180813114930.pdf
PCB_shower-detector-pcb-v2.1-annotated_top.pdf
PCB_shower-detector-pcb-v2.1-annotated_bottom.pdf

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