Quantum random number generator

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STD Quantum random number generator

License: Public Domain

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Update time： 2020-10-13 22:06:31

Creation time： 2020-10-12 21:05:39

Description

When a Townsend avalanche is created in a Geiger-Muller tube by some high-energy particle, the signal is inverted and sent to the trigger pin of a ne555 in monostable mode (T ~ 2s), whose output is sent to the clock-enable pin of a decade counter driving the cathodes of a Nixie tube, while the clock signal of the decade counter comes from the ouput of another ne555 in astable mode (f ~ 1-50Hz through UI potentiometer) Original idea : AlphaPhoenix (https://www.youtube.com/c/AlphaPhoenixChannel) Credit for voltage booster for Geiger-Müller tube : CAJOE (https://github.com/SensorsIot/Geiger-Counter-RadiationD-v1.1-CAJOE-)

Design Drawing

schematic diagram

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PCB

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PCB_2020-10-13_16-52-18
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	1m	LB1	L_AXIAL-0.6	1
2	10m	LB2	IND-TH_BD8.0-P3.00-D0.6	1
3	Nixie-IN-14 Hamic	NX	NIXIE IN-14	1
4	270p	CT1	RAD-0.3	1
5	10n	CT2	RAD-0.3	1
6	1u	CC2	RAD-0.3	1
7	10n	DB5,CB6,CB7	RAD-0.2	3
8	CD4017BE	4017	DIP-16_16P-L20.2-W6.6-P2.54-LS7.6-BL	1
9	30V AC	30VAC,30VAC2	CONN-TH_P6.35_1714955	2
10	50k	RTPOT	CONN-TH_P6.35_1714955	1
11	MPSA92	QP9,QP8,QP7,QP6,QP5,QP4,QP3,QP2,QP1,QP0	TO-92-3_L5.1-W4.1-P1.27-L	10
12	MPSA42	QN0,QN9,QN8,QN7,QN6,QN5,QN4,QN3,QN2,QN1,QB2	TO-92-3_L4.9-W3.7-P1.27-L	11
13	NE555N	555B,555T,555C	DIP-8_L9.8-W6.6-P2.54-LS7.6-BL	3
14	2N3904	QT1,QB1	TO-92-3_L5.1-W4.1-P1.27-L	2
15	33k	RB1,RB2,RC1	R_AXIAL-0.8	3
16	3k	RB3	R_AXIAL-0.8	1
17	1k	RB4,RT8	R_AXIAL-0.8	2
18	10M	RB6	R_AXIAL-0.8	1
19	10k	RT1	R_AXIAL-0.8	1
20	470k	RT2	R_AXIAL-0.8	1
21	47k	RT3	R_AXIAL-0.8	1
22	15k	R0,R1,R2,R3,R4,R5,R6,R7,R8,R9,R_M_2	R_AXIAL-0.8	11
23	75k	RM1	R_AXIAL-0.8	1
24	3.9k	RR1	R_AXIAL-0.8	1
25	5k	RR2	R_AXIAL-0.8	1
26	LM7805CT	REG	TO-220-3_L10.0-W4.5-P2.54-L	1
27	100u	CM1,CM3,CM2,CM4	CAP-D12.5×F5.0	4
28	10u	CR1	CAP-D12.5×F5.0	1
29	100u	CB2,CB1	CAP-D5.0×F2.0	2
30	1u	CT3,CC1	CAP-D5.0×F2.0	2
31	1N4007	DB1,DB2,DB3	DO-41_BD2.4-L4.7-P8.70-D0.9-RD	3
32	100n	CB3	RAD-0.1	1
33	1n	CB4	RAD-0.1	1
34	R_3386P_US	RB5	RES-ADJ-TH_3386P	1
35	Geiger+	GEIGER+	HOLE	1
36	Geiger-	GEIGER-	HOLE	1
37	1N4148	DM1,DM2,DM3,DM4,DR2,DR1,DR4,DR3	DO-35_BD2.0-L4.0-P8.00-D0.5-FD	8