CN209405526U - A kind of long-distance Co-60 treatment source - Google Patents

Abstract

The utility model provides a kind of long-distance Co-60 treatment source, including interior involucrum, sealing-plug, inner cover, outer envelope, outer cover, metal dish and more -60 columns of cobalt, metal dish is set in interior involucrum, the inner wall ring-type of interior involucrum is provided with 4 raised keys, metal dish is provided with 4 card slots matched with raised key, multiple through-holes matched with -60 column of cobalt are offered on metal dish, one end closure of interior involucrum, another end opening is simultaneously welded with inner cover, sealing-plug is embedded in interior involucrum, one end of -60 column of cobalt passes through the bottom wall that through-hole resists interior involucrum, the other end resists one end of sealing-plug, the other end of sealing-plug resists inner cover, outer envelope is sheathed on outside interior involucrum and with the outer wall of interior involucrum closely, one end closure of outer envelope, another end opening is simultaneously welded with outer cover.The long-distance Co-60 treats source and -60 column of cobalt with gamma activity is used to prepare, and makes simple, at low cost, good airproof performance.

Description

A kind of long-distance Co-60 treatment source

Technical field

The utility model belongs to the technical field in -60 source of cobalt, specifically, being related to a kind of long-distance Co-60 treatment source.

Background technique

Sealed radioactive source medical treatment, industry, in terms of have a wide range of applications, Application of Nuclear Technology field occupy compared with Large scale.In human tumor field of radiation therapy, long-distance Co-60 source plays always key player for many years, can be to people The malignant tumours such as body kinds of tumors such as breast cancer, liver cancer, kidney carry out teleradiotherapy.

Existing long-distance Co-60 treatment source largely relies on the direct irradiation of reactor, preparation process complexity and cost It is higher.

Therefore, it invents a kind of long-distance Co-60 treatment source for being able to solve the above problem and becomes and urgently to be resolved ask at present Topic.

Utility model content

For deficiency above-mentioned in the prior art, the utility model provides a kind of long-distance Co-60 treatment source, changes previous The cobalt particle radioactive contamination level serious situation of reactor directly irradiated, but use the cobalt -60 with gamma activity Column preparation, production is simple, speed is fast, at low cost, good airproof performance and highly-safe.

In order to achieve the above object, the solution that the utility model uses is:

A kind of long-distance Co-60 treatment source, including interior involucrum, sealing-plug, inner cover, outer envelope, outer cover, metal dish and more - 60 column of cobalt, metal dish are set in interior involucrum, and the inner wall ring-type of interior involucrum is provided with 4 raised keys, and metal dish is provided with 4 The card slot matched with raised key offers multiple through-holes matched with -60 column of cobalt, an end seal of interior involucrum on metal dish Mouthful, another end opening is simultaneously welded with inner cover, and sealing-plug is embedded in interior involucrum, and one end of -60 column of cobalt passes through through-hole and resists interior packet The bottom wall of shell, the other end resist one end of sealing-plug, and the other end of sealing-plug resists inner cover, and outer envelope is sheathed on outside interior involucrum simultaneously Closely with the outer wall of interior involucrum, one end closure of outer envelope, another end opening is simultaneously welded with outer cover.

Further, in the utility model preferred embodiment: the end face of outer envelope open end is offered for welding Annular groove.

Further, in the utility model preferred embodiment, the end face of interior involucrum open end offers the first groove, interior Lid is welded in the first groove, and inner cover includes the first end face and second end face being oppositely arranged, first end face and interior involucrum open end End face be generally aligned in the same plane.

Further, in the utility model preferred embodiment, the end face of outer envelope open end offers the second groove, outside Lid is welded in the second groove, and outer cover includes the third end face and the 4th end face being oppositely arranged, third end face and outer envelope open end End face be generally aligned in the same plane.

Further, in the utility model preferred embodiment, interior involucrum, inner cover, outer envelope, outer cover and sealing-plug are Stainless steel material.

Further, in the utility model preferred embodiment, argon arc welding is used between interior involucrum and inner cover.

Further, in the utility model preferred embodiment, argon arc welding is used between outer envelope and outer cover.

The beneficial effect in long-distance Co-60 provided by the embodiment of the utility model treatment source is, at the same using interior involucrum and Outer envelope bilayer involucrum carries out package encapsulation, the sealing function and intensity of the component of involucrum really greatly improved；Wherein, it uses - 60 column of cobalt is as raw material, and density is bigger, and ray energy is more concentrated, and focus dosage rate effect is more significant, passes through metal dish pair - 60 column of cobalt is fixed, and -60 column of cobalt is avoided to move around when in use, improves the precision that ray goes out beam, interior involucrum it is interior Wall ring-type is provided with 4 raised keys, and metal dish is provided with 4 card slots matched with protrusion key, and raised key is embedded by when use In card slot, effective fixation is carried out to metal dish, metal dish is avoided to move around in interior involucrum, -60 column of cobalt is caused to move It moves and influences the precision that ray goes out beam, first of sealing is carried out using the internal involucrum of sealing-plug, further improves sealing-plug Sealing effect, one end of -60 column of cobalt passes through the bottom wall that through-hole resists interior involucrum, and the other end resists one end of sealing-plug, in this way Can -60 column of cobalt internally in involucrum play further fixed function, avoid -60 particle of plating nickel cobalt in interior involucrum from moving everywhere It is dynamic, it improves ray and goes out the accurate of beam；Wherein, sealing-plug is sealed as first, and inner cover is sealed as second, outer cover conduct Three seals greatly improve the effect of sealing.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.

Fig. 1 is the structural schematic diagram that long-distance Co-60 provided by the utility model treats source；

Fig. 2 is the structural schematic diagram of metal dish provided by the utility model；

Fig. 3 is the structural schematic diagram of the longitudinal section of interior involucrum provided by the utility model；

Fig. 4 is the structural schematic diagram of interior involucrum provided by the utility model；

Fig. 5 is the structural schematic diagram of outer envelope provided by the utility model.

Icon: 100- long-distance Co-60 treats source；Involucrum in 200-；210- protrusion key；The first groove of 220-；In 230- The bottom wall of involucrum；300- sealing-plug；400- inner cover；410- first end face；420- second end face；500- outer envelope；510- second Groove；530- annular groove；600- outer cover；610- third end face；The 4th end face 620-；700- metal dish；710- card slot；720- Through-hole；- 60 column of 800- cobalt.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner", "outside" Or positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.In addition, term " first ", " second ", etc. be only used for distinguish description, be not understood to indicate or imply relatively important Property.

In addition, the terms such as term "horizontal", "vertical" are not offered as requiring component abswolute level or pendency, but can be slightly Low dip.It is not to indicate that the structure has been had to if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It is complete horizontal, but can be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

Embodiment

Fig. 1 is please referred to, the utility model provides a kind of long-distance Co-60 treatment source 100 comprising interior involucrum 200, sealing Plug 300, inner cover 400, outer envelope 500, outer cover 600, metal dish 700 and more -60 columns 800 of cobalt.

In conjunction with Fig. 1 and Fig. 2, metal dish 700 is set in interior involucrum 200, and multiple and cobalt -60 is offered on metal dish 700 The through-hole 720 that column 800 matches, in use, -60 column 800 of cobalt is passed through corresponding through-hole 720, by through-hole 720 to cobalt -60 Column 800 is fixed, and avoids -60 column 800 of cobalt from moving around when in use, improves the precision that ray goes out beam.Through-hole 720 can It is opened up according to actual needs, wherein raw material is used as using -60 column 800 of cobalt, density is bigger, and ray energy is more concentrated, burnt Dose point rate effect is more significant.

In conjunction with Fig. 1, Fig. 2 and Fig. 3, in the present embodiment, metal dish 700 closely in involucrum 200 inner wall setting, interior involucrum 200 inner wall ring-type is provided with 4 raised keys 210, and metal dish 700 is provided with 4 card slots 710 matched with raised key 210, 4 raised keys 210 are embedded at respectively in 4 card slots 710 when use, metal dish 700 is effectively fixed, metal is avoided Disk 700 moves around, and influences the precision that 800 ray of -60 column of cobalt goes out beam.

It should be noted that metal dish 700 is set to the middle part of interior involucrum 200, i.e., 4 raised keys 210 in the present embodiment Be set to the middle part of interior involucrum 200, but not limited to this, metal dish 700 can closely in involucrum 200 bottom wall setting, can also be with The other positions being set in interior involucrum 200.

One end closure of interior involucrum 200, another end opening are simultaneously welded with inner cover 400, wherein interior involucrum 200 and inner cover 400 Between use argon arc welding, argon arc welding technology is based on the principle of ordinary arc welding, using argon gas to metal wlding Protection makes wlding be melted into liquid on the base material to be welded and forms molten bath by high current, makes to be welded metal and wlding reaches metallurgy In conjunction with a kind of welding technique by air insulated except welding zone, prevent wherein leading to upper argon gas protective gas around arc welding The only oxidation of welding zone.

In conjunction with Fig. 1 and Fig. 4, it is preferred that the end face of interior 200 open end of involucrum offers the first groove 220, and inner cover 400 welds Be connected to the first groove 220, inner cover 400 includes the first end face 410 and second end face 420 being oppositely arranged, first end face 410 with it is interior The end face of 200 open end of involucrum is generally aligned in the same plane, i.e. an end face of the inner cover 400 far from -60 column 800 of cobalt is opened with interior involucrum 200 The end face at mouth end is generally aligned in the same plane, it is therefore an objective to convenient for the welding of inner cover 400, the quality of welding is improved, to improve sealing Effect.

The plug of sealing-plug 300 is embedded in interior involucrum 200, carries out first of sealing to interior involucrum 200 using sealing-plug 300, Further improve the sealing effect of sealing-plug.

Wherein, one end of -60 column 800 of cobalt passes through the bottom wall 230 that through-hole 720 resists interior involucrum, and the other end resists sealing-plug 300 one end, the other end of sealing-plug 300 resist inner cover 400, in this way can -60 column of cobalt internally in involucrum play further Fixed function, avoid -60 column of cobalt in interior involucrum 200 from moving around, improve ray and go out the accurate of beam.

In conjunction with Fig. 1 and Fig. 5, outer envelope 500 is sheathed on outside interior involucrum 200 and with the outer wall of interior involucrum 200 closely, it is therefore an objective to To further function as the effect of sealing and reinforcing the intensity of total.In the present embodiment, interior involucrum 200 and outer envelope are used The 500 double-deck involucrums carry out package encapsulation, the sealing function and intensity of the component of involucrum really greatly improved.

Wherein, 500 1 end closure of outer envelope, another end opening are simultaneously welded with outer cover 600, outer envelope 500 and outer cover 600 it Between use argon arc welding.Argon arc welding is to use argon gas as a kind of welding technique of protective gas, is exactly the week in arc welding Enclosing logical upper argon gas protective gas prevents the oxidation of welding zone by air insulated except welding zone.

Preferably, the end face of 500 open end of outer envelope offers the second groove 510, and outer cover 600 is welded in the second groove 510, outer cover 600 includes the third end face 610 and the 4th end face 620 being oppositely arranged, and third end face 610 and outer envelope 500 are open The end face at end is generally aligned in the same plane, i.e., outer cover 600 is located at same far from the end face of 400 1 end face of inner cover and 500 open end of outer envelope One plane, it is therefore an objective to convenient for the welding of outer cover 600, the quality of welding is improved, to improve the effect of sealing.

Preferably, the end face of 500 open end of outer envelope offers the annular groove 530 for welding, is conducive to improve close Seal welding quality.

Wherein, interior involucrum 200, inner cover 400, outer envelope 500, outer cover 600 and sealing-plug 300 are stainless steel material, because For the chemical etchings dielectric corrosion such as weak corrosive medium and acid, alkali, salt such as the resistance to air of stainless steel material, steam, water, can make interior - 60 column 800 of cobalt in involucrum 200 is not likely to produce corrosion, wear etc..

Preferably, stainless steel material uses 1Cr18Ni9Ti stainless steel, its matter of 1Cr18Ni9Ti stainless steel in the present embodiment Amount is lighter, is readily transported, and not only has preferable corrosion resistance, while also having preferable bending resistance and torsional resistance.

In conclusion long-distance Co-60 provided by the utility model treats source, while double-deck using interior involucrum and outer envelope Involucrum carries out package encapsulation, the sealing function and intensity of the component of involucrum really greatly improved；Wherein, made using -60 column of cobalt For raw material, density is bigger, and ray energy is more concentrated, and focus dosage rate effect is more significant, is carried out by metal dish to -60 column of cobalt It is fixed, it avoids -60 column of cobalt from moving around when in use, improves the precision that ray goes out beam, the inner wall ring-type setting of interior involucrum There are 4 raised keys, metal dish is provided with 4 card slots matched with protrusion key, and raised key is embedded in card slot by when use, right Metal dish has carried out effective fixation, and metal dish is avoided to move around in interior involucrum, causes -60 column of cobalt mobile and influences ray The precision of beam out carries out first of sealing using the internal involucrum of sealing-plug, further improves the sealing effect of sealing-plug, One end of -60 column of cobalt passes through the bottom wall that through-hole resists interior involucrum, and the other end resists one end of sealing-plug, in this way can internal involucrum Interior -60 column of cobalt plays further fixed function, avoids -60 particle of plating nickel cobalt in interior involucrum from moving around, improves and penetrate Line goes out the accurate of beam；Wherein, sealing-plug is sealed as first, and inner cover is sealed as second, and outer cover is as three seals Greatly improve the effect of sealing.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of long-distance Co-60 treats source, it is characterised in that: including interior involucrum, sealing-plug, inner cover, outer envelope, outer cover, gold Belong to disk and more -60 columns of cobalt, the metal dish are set in the interior involucrum, the inner wall ring-type of the interior involucrum is provided with 4 Raised key, the metal dish are provided with 4 card slots matched with the raised key, offer multiple and institute on the metal dish The through-hole that -60 column of cobalt matches, an end closure of the interior involucrum are stated, another end opening is simultaneously welded with inner cover, the sealing-plug It is embedded in the interior involucrum, one end of -60 column of cobalt passes through the bottom wall that the through-hole resists the interior involucrum, and the other end supports One end of sealing-plug is stated in residence, and the other end of the sealing-plug resists the inner cover, and the outer envelope is sheathed on the interior involucrum Outside and with the outer wall of the interior involucrum closely, one end closure of outer envelope, another end opening is simultaneously welded with outer cover.

2. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the end face of the outer envelope open end Offer the annular groove for welding.

3. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the end face of the interior involucrum open end The first groove is offered, the inner cover is welded in first groove, and the inner cover includes the first end face being oppositely arranged and Biend, the first end face and the end face of the interior involucrum open end are generally aligned in the same plane.

4. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the end face of the outer envelope open end The second groove is offered, the outer cover is welded in second groove, and the outer cover includes the third end face being oppositely arranged and The end face of four end faces, the third end face and the outer envelope open end is generally aligned in the same plane.

5. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the interior involucrum, the inner cover, institute Stating outer envelope, the outer cover and the sealing-plug is stainless steel material.

6. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the interior involucrum and the inner cover it Between use argon arc welding.

7. long-distance Co-60 according to claim 1 treats source, it is characterised in that: the outer envelope and the outer cover it Between use argon arc welding.