VEB VAKUTRONIK DRESDEN: PRODUCTION OF COUNTERS AND RADIAC MEASURING INSTRUMENTS

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80S01540R007400070001-8
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 8
• Document Creation Date: December 20, 2016
• Document Release Date: January 25, 2008
• Sequence Number: 1
• Publication Date: September 20, 1956
• Content Type: REPORT

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44
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PROCESSING COPY
REPORT INFORMATION INFORMATION .
CENTRAL INTELLIGENCE AGENCY. ,
This material contains information affecting the National Defense of the United States within the meaning of the. Espionage Laws, Title
18, U.S.C. Secs. 793 and 794, the transmission or revelation of which in any manner to an unauthorized person is prohibited by law. 25X1
S-E-C-R-E-T
DATE OF
INFO.
PLACE &
DATE ACQ.
DATE DISTR. 20 Septeiri#her 1 6
REQUIREMENT
NO.
1. The VEB Vakutronik, Dresden A 21, Dornbluetstrasse 14, has completed
arrangements to begin series production of radiac and measuring
instruments. During the first phase of the program, the following items
will be produced in quantity:
410,420,430)
STATE X ARMY X NAVY X AIR
Item
Impulse densimeters
Electronic decade counters (Zaehldekade)
Impulse measuring desk
Impulse counters
Small ray indicators (Strahlenindikatoren)
GeigerMueller counter tubes of various types
FBI
X ORR X OSI X
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Production of Counters and Radiac
Measuring Instruments
VA-Z-111,112,113)
it 310,320 )
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N ,, L- V-L7 'J .t1 L) J J. '.1 :i1~ i1111~.J 1JL' lY . '
1. VEB VAKUTRONIK, DRESDEN A 21, Dornb tits Grasse 14, have arrdrio rrc~i n
hand to begin series production of radiac and measuring Instru-nents.
2. For the first stage of their pro _:-ramme, V~EB V.'d1,UTRONTK produce in
quantity:
Type No.
(a) Impulse densimeters VA-G-40
(b) El.ectronic decade counters VA-B-01
(Zah1 dokade
(c) Impulse measuring ieak VA-G-20
(d) Impulse counters VA-G-21
(e) Small ray indicators VA-3-OL
(Strahlenindikatoren)
(f) Geiger A,2tiller counter tubes of VA-Z 111
various types VA-Z 112.
VA-Z 113
VA-Z 310
VA-Z '320
VA Z 410
VA Z 420
VA Z 430
3. A description of each instrument with its technical specifications follows
in the l emainder of this report:
4. I VWULSE DE NSIMETER. - TYPE VA -G-10
Genoral
#h(, Impulse Doiisimeter makes possible continuous moasurement of
impulse densities of periodically and statically divided impulse
sequences. It is suitable for use in conjunction with Geiger Muller
counters as a simple laboratory device for solving nuclear physical
measurement problems, deter :lining radiation intensities and resolving
such technical questions us non-destructi-re testing of matrials,
safety control, etc.
/T:;chnical Data:
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Technical Data
Input Sensitivity: 0.28 V
Indication cf Impulse
Density:
Measurin5 Range Release Time (Aufl~sungszeit)
600 Imp/min 3 as
1,800
6,000 0.3
18,000 0.1
60,000 0.03
..,latching Control: By means of the mains freq ency.
Integration period: 5 - 30 s, continually
controllable . i 10%
l\'Ioasuroment of v.ry slight
intencities:
Through 4-position roller
counter. Release time 60 ms.
Counter cannot be switched back,
Acoustic Indication: Through built-in miniature
speaker (KleinMrer)
High Tension:
0 - 1,600 V for coarse and
fine tuning stabilized to
? 2% at + lCr% mains fluctuation.
Possible connections: To recorder and impulse counter.
Input:
5. ELECTRONIC
General
This instrument is desi0i ed to facilitate self construction of
electronic counters. The decades can be switched directly in series.
Technical Data
Input Impulses:
Amplitude:
Rate of rise:
Output Impulses:
220 V 50 c/??,
alternatively '10 or 127 V.
ca. 60, VA
550 x 290 x 240 mm.
15 - 30 V negative.
Suitable for modulating
other decade counters
5 us
Flashing laps (Glim:ilampen)
/Feed:
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RFPRFT
Anode torsion
Anode current
Filament volt?n,ge
Filament current
330 v - (? i0%)
ca. 30 mA
6.3V'?(-
10a )
1.8 A
0.6 A
1.94x180x59 -mrn.,
ircludling valves.
6. MEASURING DESK TYPE -VA-G-20
General
(i) This laboratory instrument is doeignol to count single impulses
and simultaneously to enable their dositios to be measured. It is
equipped with an automatic device to allow hand s,-,;itching as Tell as
measurement by impi lso selection. The duration in time of any
measurement is automatically shown 1?;;r a stop-clock and there is a
switch-clock connection for preselected time ?easur s nts.
(ii) The desks consists of three sound boards (EinschUben) placed in
a single housing. The lower board will take, as desired, the VA-G-40
or VA-G-41 type impulse densimeter nigh tension supply for the
counter. The release +i.nos (1'>ufl8sungszoiten) given in para.4 above
for the impulse densimetcr apply :-:hen the impulse counters are connected.
(iii) The upper and cent -e -boards take the electronic and mechanical impulse
counter equipment -,which can be used in connection with other measrrements
which rely on the countor principle - e.g. short-ti.e measurements.
Technical Data
Impulse Counter
Release Time: 5 us.
Counter Speed: max. 10,000 Imp/s.
Counter capacity: 106 Imp.
Counter Syste.: In decodes: 2 electronic
decades
2 mechanical
decades.
Impulse Selection:
Time Miea.~3urement
Connections:
Can be reset.
102, 103, 104, 105, 106 Imp.
Built-in stop-clock to 30 min.
The direct input of the impulse counter corresponds to impulse and
sine-shaped potentials (Spann'maen) of the order of 3 V.
SECRET
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 Details as for VA-G-40 and
\TA-G-41
Impulse Densimeter
The Measuring Desk as
a whole
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Para.6 (cont...)
Power Supply:
Input-
Moasuranonts -
7. IM,TJLSE COUNTER - TYPE VA-G-21
General
220 V 50 c/s; or 110 and 127 V.
c. 200 VA
600x550x200mm.
This counter is designed for economy of zrorking in radiation labora-
tories. Used in conjunction ith Geiger-Muller counters it permits counts
of single impulses.
Technical Data
Input Sensitivity:
Release Time-
Councor Speed.
Counter Capacity:
Counter s Tstem:
Voltage-
Poorer Supply:
input -
Measuronients -
8. SMALL RAY IPDICLTOR - TYPE VA-J-OL
0.25 V.
30 us
max. 1500 Imp/s.
106 Imp.
decades
electronically
4 mechanically
0 - 1,600 V
Coarse and fine tuning
No indicator
Stabilized to ? 2% at 10%
current fluctuation.
220 V at 50 c/s3 or 110 or 127 V.
ca. 120 VA
400 x 220 x 220 mm.
General
This is a sr_all manageable device intended to determine the
position of radioactive substances in a laboratory and on the t-round.
Counter impulses are detcr_rined acoustically through head-phones.
/Technical
Data-
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T7seo R13ntgon, Gamma and Beta rays
from 0.5 MoV.
Technical Dataa,O
Ray Detector: Geiger Muller counter
Battery Feed: 5Vorcing life of about 50 hours
Measurements: 220 x 45 x 55 mm.
7. GEIGER i fl LLER COUNTER TUBES
The counter tubes shown in tee trihle belo;r arc self disch=arging
(selbstlbschcnd) and ,are fitted ~. ith an oxide coat. d c thode (Scnicht -
k:tithode) . With the exception of type VIZ 430 they aro fitted with coaxial
standard counter i;ube sockets (Standard-Z!,hlro'rrrsockel).
Type Vii- Z
111 112
-7
310 320
430 410 113 420
Thin-,galled-
Window
Liquid
glass
Counter tube
Counter tube
Counter tube
(Fenster
(Fliissig!kkeits-
(Gla.s ZL.h~rnhr)
Zdhlrohr)
d.hlruhr)
Effective
10
100
-
-
in
?-0
10
10
Counter volume
in cmva
4
Thick.ess
mg/cm ca
35
50
-
-
35
35
35
35
Starting potential
1
000
(Eins-atzsp ,ainung)
1000
11000
1000
1000
1000
11000
1000
1
in V ca
Minimum plan3
length (Plateau-
200
200
150
150
200
200
200
200
l .nge
Plane incline
5
% 5
' 10
/-10
5
5
5
! 5
in % 100 V
Minimum life
10
10
1 10
10
i61,
10
10
10
in Imp. ca
'firdow t~ickness
-
-
L2
ca-3
-
-
-
I -
in mg/cm'
Window diameter
in cmi.
-
-
30
30
-
-
-
-
Measuring volume
-
-
10
-
50
in ml.c^,.
Standard ground
- -
-
-
-
-
29/32
-
29/32
.Dint
Construction
Bell type
see
Immersion
see
Construc-
@
(Eintauch)
!
tion
Counter
tube
Discharge (Durchfluss) counter tube
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