DEVELOPMENT OF A SINGLE-THREND PROJECTION ELECTROMETER AT ZEISS, JENA

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A002500980004-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 23, 2016
• Document Release Date: August 5, 2013
• Sequence Number: 4
• Publication Date: October 19, 1953
• Content Type: REPORT

50X1 -HUM
Declassified in Part - Sanitized Copy Approved for Release 2013/08/05: CIA-RDP80-00810A002500980004-6
`.:OUNTRY
SUBJECT
PLACE
ACQUIREL,
DATE OF
INFO
CLASSIFICATION ,.s.
CENTRALVdd 14'60460
P FOR ElrgiagON [REPORT
East Gernany
Development of a Single?Thread Projection
Electrometer at Zeiss, Jt.na
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1 TWA DOCUOIDIT AfttITALAS tOFciturazon AtnravonfiT TJAVICHP.L f?FAMila
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-
REPOR1
CD NO.
50X1 -HUM
DATE DISTR. 19 October 1953
NO. OF PAGES 1
NO OF ENCLS.
4USTED SELMA
SUPPLEMENT TO 50X1-HUM
REPORT NO.
THIS IS UNEVALUATED INFORMATION -
50X1-HUM
13 Cu:0-,t5Lict....',..on and2.-7.criT.lental i.k.vnrtment (Konstruktions?unr3
Versuclisabteilungs; ((011.) of -v-13 Carl Zeiss., Jena, completed the develop-.
of .rojeo Lion clectro-ieter
t 10 device was berari ih the fall of 1952 Oac mcdel
of ne tr.-uric& fin.l.sDeci, it is to Lcisd for th:-easure:-..ent uf
wak curre;:t ?Tidier small charce.; in paPticulai)for the .rstire-
..:t el thr: weak photoeurrents with r.,:-iot.ocelle; b) icn-
iticri 'urrert- n n?L:clear rhysies, ens disoharcE.-. rhysios? ;:eork sics,
t:oz, ix - ?ani radium rays; c) pit-values with E,rlass eloc
arid d) ir lators nnd rt.sistanc es with hii7n
, T:te 1.1-rurcht has a vecy thirl platinum thread elastically affixed
a- .-lectxostatic; field beteen two edie. electrodes (F,c1Incidor(),
J2 a vl.av-s is tc the thread) it is movsd from its zero iolsitn;
the 1():::ent o.;* VIt! t;-:ead is read throuch a microscore As an. inno-
-vat.ien. Instrilnant iprevide.d Lit:a Trojection ecv,!iplent which
perm;.t!; t: shadow of the thread tr., be thrown onto a screen Litl's
bcalc 0: 1;) lencth.
3, c: t;.(3 Instrument extends from 0.5 to 500 volts,. The inti2atLin
liet:oen tIr.: thread ant: Ule case is al.:out tcn pove2 16 a:ClE
TIC r tm; t4rad is aboat five pl. 7.1e sensitivity of the
wide iiiit Tr :ei-,ezal, 50 scale Tirts
pet zensitive measurcaents. ,an
?c. , ...,,e-iera3 hundred cale rarts per volt for zero Nethods
CLASS;FICATION
rp,?r, I
t siswi _1 , DiSTPIBUTION
c CM(
? I i_ I--I 1
SECRET ?
50X1-HUM
Declassified in Part - Sanitized Copy Approved for Release 2013/08/05 : CIA-RDP80-00810A002500980004-6
50X1 -HUM
Declassified in Part - Sanitized Copy Approved for Release 2013/08/05: CIA-RDP80-00810A002500980004-6
Declassified in Part - Sanitized Copy Approved for Release 2013/08/05: CIA-RDP80-00810A002500980004-6