MEASURING APPARATUS
An ion chamber assembly is presented for measuring neutron emission of a relatively slow rate from a radioactive sample. The detecting apparatus comprises a container filled with neutron slowing material and having a cavity where a neutron source may be located centrally in the container. A plurality of ion chamber units are disposed equidistantly from the source and from each other for detecting the neutron radiation. Each of the ion chamber units has an ion chamber and a second chamber of substantially the same diameter as the ion chamber and in end-to-end relationship therewith. The second chamber contains paraffin and an axially disposed lead-in conductor for the ion chamber central electrode. The preamplifier circuit whose input is connected to the lead-in conductor is housed in a third container arranged in end-to-end relationship with the second chamber.
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-015332
- Assignee:
- U.S. Atomic Energy Commission
- Patent Number(s):
- US 2874306
- OSTI ID:
- 4246063
- Country of Publication:
- United States
- Language:
- English
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