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Method and device for energy spectrum measurement sampling of zero-power experimental device

An experimental device and zero-power technology, applied in radiation measurement, neutron radiation measurement, measurement device, etc., can solve problems such as short half-life and measurement data cannot meet the requirements, achieve timely measurement, accurate calculation results, avoid The effect of decay ray damage

Active Publication Date: 2019-05-21
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For some detection chips, the half-life after activation is very short, and it may have decayed by several orders of magnitude within 20 minutes, so that the measurement data cannot meet the requirements.

Method used

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  • Method and device for energy spectrum measurement sampling of zero-power experimental device
  • Method and device for energy spectrum measurement sampling of zero-power experimental device

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] The invention provides a method for energy spectrum measurement and sampling of a zero-power experimental device. The experimental element is designed to be as long as the fuel element. The experimental element can be inserted into the core before the stack is opened, and the sample sampling device provided by the invention can be used after irradiation take out. The experimental components are connected to the sample sampling device, and the reactor is opened to irradiate the experimental components, and at the same time, the power level of the reactor is monitored online through the power monitoring device; after the irradiation is completed, the reactor is shut down, and the experimental components are pulled out from the core through the sample sampling device and transported to a location away from the core, and then the experimental compo...

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Abstract

The invention relates to a method and device for energy spectrum measurement sampling of a zero-power experimental device. The energy spectrum measurement sampling device comprises a slide rail; a roller that can move along the slide rail is arranged on the slide rail; and an experimental component is connected with the roller. One end of the slide rail is arranged above a core and the other end is away from the core. The roller is connected with a motor arranged at one side, away from the core, of the slide rail by a connecting rope; and the roller is driven by rotation of the motor to move in the slide way of the slide rail. Therefore, the waiting time for stopping and sampling can be saved; the activity measurement counting rate of the irradiated sample can be improved effectively; andthe damage of the decaying rays during sampling can be avoided.

Description

technical field [0001] The invention belongs to neutron energy spectrum measurement technology, in particular to an energy spectrum measurement sampling method and device for a zero-power experimental device. Background technique [0002] Accelerator Driven Sub-critical System (ADS, Accelerator Driven Sub-critical System), bombards target nuclei (such as lead, etc.) with high-energy, intense proton beams generated by the accelerator to generate spallation neutrons as external source neutrons to drive and maintain the operation of the sub-critical reactor , which is inherently safe. The neutron energy spectrum of the ADS system is hard, the flux is large, the energy distribution is wide, and the ability to transmute long-lived nuclides is strong. It can not only greatly reduce the radioactive hazards of nuclear waste, realize the minimum disposal of nuclear waste, but also output energy and improve The utilization rate of nuclear resources is internationally recognized as th...

Claims

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Application Information

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IPC IPC(8): G01N23/00G01T3/00
Inventor 刘锋朱庆福周琦张巍刘洋
Owner CHINA INSTITUTE OF ATOMIC ENERGY