Initial signal fan-out device of neutron spectrometer

An initial signal, neutron spectrometer technology, applied in measuring devices, neutron radiation measurement, material analysis using neutrons, etc., can solve difficult installation and maintenance, low number of fan-out channels, increased workload, etc. problem, to achieve the effect of improving integration, improving timing accuracy, and reducing difficulty

Active Publication Date: 2021-08-24
合肥中科采象科技有限公司
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Problems solved by technology

[0009] In this way, the number of dedicated hardware fan-out channels based on optical fiber links is low, and for electronic systems with a large number of channels, a large number of cables and optical fiber transceivers are required, which is not ...

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  • Initial signal fan-out device of neutron spectrometer
  • Initial signal fan-out device of neutron spectrometer
  • Initial signal fan-out device of neutron spectrometer

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 As shown, in order to meet the requirement of starting signal fan-out, the present invention adopts a two-stage starting signal long-distance accurate fan-out architecture. The fan-out distribution of the initial signal from the control station to the acquisition channels in the internal electronics system of the remote laboratory hall must not only be transmitted through a nearly 100m long coaxial cable, but also ensure the accuracy of the initial signal fan-out.

[0029]First of all, the first level is the fan-out of the initial signal from the control station to multiple remote laboratory halls. The initial signal of the fan-out at this level is an analog signal, which needs to be completed while fan-out of the initial signal and long-distance transmission , to ensure the timing accuracy of the start signal. The analog sig...

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Abstract

The invention relates to an initial signal fan-out device of a neutron spectrometer, which comprises an initial signal fan-out module in an electronics system, in the control station, a starting signal fan-out module carries out fan-out on a starting signal, and after first-stage long-distance driving processing, the starting signal is transmitted to a far-end electronics system through a long-distance cable; in the electronics system, the initial signal is further fan-out to each electronics channel through a signal receiving and digitizing node to complete second-stage fan-out; and the long distance is greater than or equal to 100m. According to the invention, an analog and digital combined two-stage precise fan-out method is used to complete precise global synchronous fan-out of an initial signal to an electronics system. The device has the advantages of multi-channel fan-out, high timing precision, high synchronization precision and the like, so that an electronic system can accurately measure output signals of a detector, and accurate time information and energy information of nuclear interaction and nuclear reaction of neutrons and substance atomic atoms are obtained.

Description

technical field [0001] The invention relates to a neutron spectrometer initial signal fan-out device, which belongs to the neutron spectrometer data collection, test measurement and synchronous timing technology for particle physics experiments. Background technique [0002] In a spallation neutron source, protons strike a metal tungsten target at a certain frequency, producing spallation neutrons. The neutron spectrometer uses the neutrons produced by the spallation reaction to interact with the sample, and uses the neutron detector to detect the neutrons after the action, so as to conduct neutron experiments. [0003] The neutron spectrometer on the spallation neutron source adopts neutron time-of-flight technology, and the data acquisition system needs to accurately know the time zero point of each proton pulse hitting the target, so as to accurately measure the neutron time-of-flight. Therefore, the signal associated with the target proton bunch is used as the initial s...

Claims

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Application Information

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IPC IPC(8): G01N23/00G01T3/00
CPCG01N23/005G01T3/005G01N2223/106
Inventor 曹平李嘉雯李超黄锡汝安琪岳琼申
Owner 合肥中科采象科技有限公司
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