Activation-Rate Measurements in the ZPR-3 Mockup Critical Experiments: Part III. Measurements of Foil-Activation Rates in Assemblies 62 and 63 of ZPR-3 Mockups of EBR-II with a Stainless Steel Reflector
- Argonne National Lab. (ANL), Argonne, IL (United States)
This is the third and last report in a series describing activation-rate measurements conducted in the ZPR-3 critical facility, which was mocked up to simulate various configurations of EBR-II. The primary objective of the series is to describe the measurements in sufficient detail to allow the results to be evaluated by the reader and used as deemed appropriate. The present report gives a complete description of the activation-rate measurements conducted in Assemblies 62 and 63 of ZPR-3. Both assemblies simulated EBR-II with a stainless steel reflector. They differed in that Assembly 62 represented a homogeneous core with a composition similar to EBR-II, whereas Assembly 63 was composed of a heterogeneous series of drawer loadings and represented a more "typical" EBR-II core loading. In Assembly 62, foil-activation-rate measurements were made in three principal locations, near the core center, near the core-blanket interface, and within the radial reflector. In Assembly 63, foil-activation-rate measurements of only 235U and 238U were made at 15 different drawer locations. The Assembly 63 experiment provided fission-rate traverses, as well as an examination of the effects that various types of drawer loadings had upon the fission rates. For Assembly 62, the reaction-rate data are presented, intercompared, and also compared with the results from another activation-rate experiment performed by the Applied Physics Division. Assembly 63 fission rates determined by foil activation are compared with results obtained by fission-counter traverses.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA), Nuclear Criticality Safety Program (NCSP); US Atomic Energy Commission (AEC)
- DOE Contract Number:
- W-31-109-ENG-38
- NSA Number:
- NSA-26-052620
- OSTI ID:
- 4626005
- Report Number(s):
- ANL-7927
- Resource Relation:
- Other Information: UNCL. Orig. Receipt Date: 31-DEC-72
- Country of Publication:
- United States
- Language:
- English
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