CN212623113U - Miniaturized lithium glass neutron detector - Google Patents

Abstract

The utility model discloses a miniaturized lithium glass neutron detector, including ya keli cuboid, shell, silicon photomultiplier and end cover, the ya keli cuboid is installed inside the shell, all posts lithium glass on five faces of ya keli cuboid, and the welding of silicon photomultiplier is on printed circuit board, and silicon photomultiplier photon receiving face is scribbled silicon oil and is installed on the face that the ya keli cuboid does not post lithium glass, the utility model discloses miniaturized lithium glass neutron detector is whole small, low cost, impact-resistant. The modular design has the advantages of more compact structure, simple process and good consistency of produced products.

Description

Miniaturized lithium glass neutron detector

Technical Field

The utility model relates to a detector technical field specifically is a miniaturized lithium glass neutron detector.

Background

Neutron detectors refer to a class of detectors that can detect neutrons. Neutrons are not charged themselves and cannot be ionized or excited, so they cannot be detected directly with ordinary detectors. The existing neutron detectors are of the type of He-3 gas (spherical, cylindrical and planar),¹⁰B solid (planar),⁶LiF solid (planar shape), lithium glass solid (planar shape), wherein lithiumThe mode adopted by the glass neutron detector is lithium glass⁶LiF) scintillator and photomultiplier add preamplifier circuit to constitute, adopt traditional photomultiplier bulky, with higher costs, lead to accomplishing small and exquisite light with the instrument.

The existing lithium glass neutron detector adopts a lithium glass (6 LiF) scintillator and a traditional photomultiplier, so that the instrument is large in size, complex in structure, fragile in glass product and high in cost, the traditional photomultiplier needs to be added with hundreds of volts of high voltage, a peripheral circuit is complex, energy consumption is high, the carrying and the use are inconvenient, and the use experience is influenced.

Disclosure of Invention

An object of the utility model is to provide a miniaturized lithium glass neutron detector to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a miniaturized lithium glass neutron detector, includes ya keli cuboid, shell, silicon photomultiplier and end cover, the ya keli cuboid is installed inside the shell, has all posted lithium glass on five faces of ya keli cuboid, and the welding of silicon photomultiplier is on printed circuit board, and silicon oil is installed on the face of ya keli cuboid not pasting lithium glass to silicon photomultiplier photon receiving face coating.

As a further aspect of the present invention: an end cover is arranged above the printed circuit board.

As a further aspect of the present invention: the size of the acrylic cuboid is 1mm x 40 mm.

As a further aspect of the present invention: the end cover is made of light-tight materials.

As a further aspect of the present invention: the housing is made of black plastic.

As a further aspect of the present invention: the printed circuit board internally comprises a preamplifier, an operational amplifier, a comparator and a counter.

As a further aspect of the present invention: the silicon photomultiplier is arranged on a square surface of 1mm x 1mm of the acrylic cuboid.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses miniaturized lithium glass neutron detector is whole small, low cost, shock-resistant. The modular design has the advantages of more compact structure, simple process and good consistency of produced products.

Drawings

Fig. 1 is a structural view of the present invention.

In the figure: 1-an acrylic cuboid; 2. lithium glass; 3. a housing; 4. a silicone oil; 5. a silicon photomultiplier tube; 6. printed circuit board, 7-end cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, embodiment 1: the embodiment of the utility model provides an in, a miniaturized lithium glass neutron detector, including ya keli cuboid 1, shell 3, silicon photomultiplier 5 and end cover 7, ya keli cuboid 1 is installed inside shell 3, all posts lithium glass 2 on five faces of ya keli cuboid 1, and silicon photomultiplier 5 welds on printed circuit board 6, and silicon photomultiplier 5 photon receiving face is scribbled silicon oil 4 and is installed on the face that ya keli cuboid 1 does not post lithium glass 2.

An end cap 7 is arranged above the printed circuit board 6. The acrylic cuboid 1 has a dimension of 1mm by 40 mm. The printed circuit board internally comprises a preamplifier, an operational amplifier, a comparator and a counter. The silicon photomultiplier 5 is installed on the square surface of 1mm x 1mm of the acrylic cuboid 1.

Embodiment 2, on the basis of embodiment 1, the housing 3 is made of black plastic, and the end cap 7 is made of opaque material. The sealing property and the light-tightness are ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a miniaturized lithium glass neutron detector, includes ya keli cuboid (1), shell (3), silicon photomultiplier (5) and end cover (7), its characterized in that, install inside shell (3) ya keli cuboid (1), all post lithium glass (2) on five faces of ya keli cuboid (1), silicon photomultiplier (5) welding is on printed circuit board (6), and silicon photomultiplier (5) photon receiving surface is scribbled silicon oil (4) and is installed on the face of ya keli cuboid (1) not post lithium glass (2).

2. The miniaturized lithium glass neutron detector of claim 1, wherein an end cap (7) is disposed above the printed circuit board (6).

3. A miniaturized lithium glass neutron detector according to claim 1, characterized in that the acrylic cuboid (1) has dimensions of 1mm x 40 mm.

4. The miniaturized lithium glass neutron detector of claim 2, wherein the end cap (7) is made of an opaque material.

5. A miniaturized lithium glass neutron detector according to claim 1, characterized in that the housing (3) is made of black plastic.

Images