reactor core

The central part of a nuclear reactor where atomic fission occurs.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Release date- 09082019 - An International Atomic Energy Agency (IAEA) team of experts said the operator of a research reactor in Nigeria has demonstrated a high commitment to enhancing safety following the conversion of the reactor core to use low enriched uranium (LEU) as fuel instead of high enriched uranium (HEU).

IAEA Mission Says Research Reactor Operator in Nigeria Committed to Safety After HEU Conversion

The conversion of the reactor core was successfully completed in August 2017 with a total expenditure of USD 22,000,000.00 and over 90% of the expenditure provided by US Government and IAEA whilst Ghana Government provided the needed security.

Bawumia commissions 3 new facilities for GAEC

"Further, if hot spots were to occur and if nuclear fuel were to react with the graphite moderator they could lead to explosions inside the reactor core.

Chernobyl 2.0 fears as nuclear expert warns against re-opening cracked UK reactor; Hunterston B nuclear power plant was shut down last year after it was found that one of the reactors had almost 400 cracks in it - exceeding the operational limit

As a result, direct emissions from the radioactive reactor core transmitted into the atmosphere.

Past in Perspective

The Fluid Reactor is enabled by a novel reactor core element which allows the efficient transfer of gases into and out of liquids.

CVD announces development of advanced fluid reactors

A generation is essentially the lifetime of a neutron, in a finite system, the effective multiplication factor is denoted as [k.sub.effective] or [k.sub.eff], which is used to determine the stability of a nuclear reactor core. When a system is critical, it maintains a steady-state chain reaction of nuclear fissioning, and [k.sub.eff] = 1.

CRITICALITY CALCULATION OF A HOMOGENOUS CYLINDRICAL NUCLEAR REACTOR CORE USING FOUR-GROUP DIFFUSION EQUATIONS

An EDF spokeswoman said: "As part of the normal ageing process, we expect to see defects occurring in some of the graphite blocks that make up the reactor core of our plant.

Cracks found in nuclear reactor; Discovery prolongs shutdown at power plant

In July 1959, a partial meltdown occurred at Sodium Reactor Experiment in Los Angeles, California, due to cooling flow blockage that caused overheating of the reactor core.

List Of Nuclear Plant Accidents In US

This provided needed experience and data on casting, machining and material characteristics of the reactor core.

Nuclear reactors to power space exploration: national lab working with NASA to further space and planetary travel

Control volume 134 simulates the upper plenum of the reactor core, the coolant flow of which comes from the annular pipes.

Sensitivity Evaluation of AP1000 Nuclear Power Plant Best Estimation Model

So they attached Blu Tack to the end of a long, flexible rod and inserted it nearly 10m into the reactor core - saving the cost of developing a specialist tool for the job.