An integration radiation meter for beta and gamma rays, Sigmion, Mark 10, Model 70

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Material Information

Title:
An integration radiation meter for beta and gamma rays, Sigmion, Mark 10, Model 70
Series Title:
United States. Atomic Energy Commission. MDDC ;
Physical Description:
2 p. : ill. ; 27 cm.
Language:
English
Creator:
Argonne National Laboratory
Argonne National Laboratory
U.S. Atomic Energy Commission
Publisher:
Atomic Energy Commission
Place of Publication:
Oak Ridge, Tenn
Publication Date:

Subjects

Subjects / Keywords:
Ionization chambers   ( lcsh )
Nuclear counters   ( lcsh )
Nuclear physics -- Instruments   ( lcsh )
Gamma rays   ( lcsh )
Beta rays   ( lcsh )
Electronic circuits   ( lcsh )
Genre:
federal government publication   ( marcgt )
technical report   ( marcgt )
non-fiction   ( marcgt )

Notes

Restriction:
"Date Declassified: January 17, 1947"
Statement of Responsibility:
by Argonne National Laboratory.
General Note:
Manhattan District Declassified Code
General Note:
"Date of Manuscript: Unknown"

Record Information

Source Institution:
University of Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
aleph - 005024284
oclc - 288609614
System ID:
AA00009254:00001


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TENNESSEE


0i INTEGRATION RADIATION METER FOR BETA AND GAMMA RAYS,
S SIGMION, MARK 10, MODEL 70


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Argonne National Laboratory


ilor iise within the Atomic Energy Commission. Inquiries for additional copies
phos regarding reproduction by recipients of this document may be referred
Sln^ Jtormation Division, Atomic Energy Commission, P. O. Box E, Oak Ridge,



i*' declassified document may differ materially from the original classified
Mr' ....e of deletions necessary to accomplish declassification, this copy does
iu0l rity for declassification of classified copies of a similar document which
.Ou ss titie.and authors.

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ilitoiary 17, 1947

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.-1- MDDC-884


S AN INTEGRATION RADIATION METER FOR BETA AND GAMMA RAYS,
I.' : SIGMION, MARK 10, MGDEL 70


.l s instrument consists of a 50 cc ionization chamber and an electronic circuit which is
ptiagntr u cited that when the total amount of gamma radiation falling on the chamber reaches
fia4y. selected value up to 20 mr, an alarm rings, the circuit is reset, and is again ready to
*.perate.

.E ach time the circuit is reset a message register is operated so that the total amount of
4iatdiation falling on the ionization chamber in any length of time can be measured.

.circuit as shown in the diagram uses a Victoreen V32 tube in an inverted manner so
'the normal plate is the control grid and the normal grid is the plate. When used in
S4nanner the effective grid currents are of the order of 10-14 amperes and do not vary
viably with effective grid potential. These grid currents are balanced out by an ad-
t uranium rod suitably placed in the ionization chamber.

'ument is self-contained with a battery life for continuous use of approximately 3
;A cap is provided which may be placed over the ionization chamber to exclude
articles from entering it. This instrument'has been found very useful for determin-
ihie integrated amount of radiation present in any locality. Weight about 15 lbs.




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