power supply schematic

~^7

AC in

Ą+12u C9 -L

. luF

SU1 i i

0^1

U2

LM7805 In Out Com

PSI - Lambda LKD-A-152

AC Power	+ 12M
Supply	Gnd
AC	-12M
+5w
__	_N—

—ii-C10 j^pl0uF

*

+ 12w

-12u

f

D5 D6 D7 1N4148

Yoltage Doubler

SW2a and SU3a are for

Polarity Selection

Signals for DT-590A Scinti1lation Probe

^Vin CCFL Out1 module

C7 Qg

100pF100pF

HHh

C1-C4, 2kV rating C5-C8, 1kV rating

Sl*J2a

D1-D4: 1N4007

R4

10K

R5

10K

	——	->AA/-
	-C2	—C3	—C4
	. 01uF	. 01uF	. 01uF

SW3a l l

R6/R7 diuides by 331

R6

66M

-12v^

R7

200K

C- -12M

O

E- Gnd

O

HV Adjust 400-1200 V

+5w

D8

HM measurement

M = HM / 331

R10

10K

VW

SW3b

,D9

D8-D9: 1N4148

dsPIC	DEM AN0	o—
	GND	o-
30F4012	RB3/CN5	O-
30F4012	RB4/CN6	o-

"^7

-12u

r

C12

luF

B-

~0 Analog Out To Analog Board Channel 0 Input

G-M Pulse #1

G-M Pulse #2

+5v

Signals to MPUs

R18

100K

+5u

D14

1N4007

C15

22pF

Hh

R20

100K

D15

1N4007

C16

22pF

Hh

R17

D16

1N4007

High Yoltage is about +700Y for G-M Tubes, -650 to -950Y for Scinti1lator

Type 5980 Geigei—Mueller Tubes

R19

4M    .

V\A/-J\}

D17

1N4007

Data Acq.	Sys. for Rad. Meas.
Power Supply & Geiger Tubes
MT2065	Rew 1.0	Page 1 of 1
	6/19/2007