Device for light flux attenuation, especially for additional quenching of scintillations at radionuclide activity determination
Patent
·
OSTI ID:5553290
Apparatus for light flux attenuation particularly for additional quenching of scintillations in the determination of radionuclide activity comprising a body provided with a counting chamber containing a counting vial which is optically coupled with photomultipliers and between which is disposed a cylindrical spring. The opposite ends of the spring are secured in the body and the spring extends in surrounding relation with a rotatable bush mounted in the body. The bush is provided with a ring having a hole through which the cylindrical spring passes such that the ring divides the spring into a first portion surrounding the counting vial and a second portion surrounding the rotatable bush.
- Assignee:
- Instytut Badan Jadrowych (Poland)
- Patent Number(s):
- US 4205231
- OSTI ID:
- 5553290
- Country of Publication:
- United States
- Language:
- English
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