Identification system used for determination of gun as per striker mark

FIELD: weapons and ammunition.

SUBSTANCE: identification system is characterised by available marking element on striker surface, and mixture consisting at least of three radioactive isotopes chosen from the group containing 69Co, 55Fe, 210Pb, 63Ni and 90Sr.

EFFECT: unique specific identification of item of mass gun as per striker mark on case.

 

The invention relates to the field of design and manufacture of firearms and can be used for marking small arms, preferably produced in small batches.

Known for the design of the barrel (RU, patent 2148769, 2000), containing on the inner surface marking coatings, providing implementation of a set of microelements in the side surface of the bullet during its passage through the barrel during the shot, allowing by chemical analysis of the surface of the bullet, and surfaces in contact with the bullet, after the shot to determine the qualitative and quantitative composition of the established elements and, therefore, the trunk from which a shot was fired.

This system of marking of the trace elements are not suitable to identify weapons, because there is currently not known how precise application on the internal surface coatings, in addition, in this embodiment, the weapon cannot be identified by empty sleeve.

There is a construction barrel rifle (RU, patent 2212609, 2003), which contains on its inner surface, at least one marking element, leaving the shot on the pool traces that can be identified as individual code of the trunk, and as specified marking is of lamenta used the pitch between adjacent grooves, width different from the width of other fields, and change the width ranges from 2.8 to 5.7% of the width of the field, defined as the difference between the circumference of the barrel and the total width of the grooves, divided by the number of fields.

A disadvantage of the known identification system rifle admittedly small number of weapons that can be marked up in this way without sacrificing ballistic performance of the weapon, in addition, in this embodiment, the weapon cannot be identified by empty sleeve.

The closest analogue of the claimed invention can be recognized identification system, which is included in the design of a rifled barrel (US 4175346, 1979). As the identification system is proposed to apply on the inner surface of the barrel rifled weapons additional marking elements, leaving traces on the pool, which can be identified as individual characteristics of the barrel rifled weapons.

A disadvantage of the known identification system should recognize not take into account the impact of the additional marking elements on ballistic weapons, in addition, in this embodiment, the weapon cannot be identified by empty sleeve.

The technical problem to be solved by the present invention, ostoic to enable marking of rifles, preferably produced in small batches.

The technical result in the implementation of the design is to ensure identification of weapons like rifles and shotguns on the spent cartridge using a previously executed marking elements.

To achieve the technical result of the proposed use identification system for the method of radioactive indicators used to determine weapons. Specified identification system is a set of at least three radioactive isotopes selected from the group consisting of69Co.,55Fe210Pb63Ni and90Sr. Specified identification system is applied in the form of a coating, containing metals, isotopes are used as an identification system, with the striker surface applied coating thickness of from 2.0 to 3.0 μm. Preferably the content of radioactive isotopes in the metal is 0.0001-0,001%. Drawing mainly carried out by spraying, although it is possible and the application of a galvanic method.

These radioactive isotopes have half-life, sustainable identification of their presence for at least 5 years. The total amount of radiation from deposited isotopes exceeds natural the military background radiation city not more than 10-12%, i.e. completely safe for the user of the weapon.

The method of radioactive indicators is the most simple and instrumental secured from the known methods of activation analysis.

When identifying rifled firearms using the developed method pre-determine the response of radiotracers from the sleeve - or rather, from the surface of the cap liner after contact with her brisk, the surface of which is coated developed an identification system used when making a shot from a weapon, using the result as a control. Usually this is done when shooting weapons. Sleeve, obviously used to make shot from the weapon, is subjected to analysis by the method of radioactive indicators and put the results into the appropriate database (factory and MIA). When determining weapon compare the results of the analysis of the bullet with a known database characteristics previously shot shells.

Modern equipment used in the method of radioactive indicators, allows us to determine the individual contribution to the total radioactivity of each of the used radioactive isotopes. Knowing the half-life of each of the used radioactive isotopes, expect what about the well-known relations (see, for example, Berdonosov S. radiotracers in chemical research M., "Chemistry", 1999), the value of radioactivity at the date of analysis sleeves, subject identification.

Using the specified thickness of the sprayed layers due to the following experimental data.

From experience in the use of firearms small arms the above thickness range of the coating on the surface of brisk enough to obtain reliable results using the analysis method of radioactive indicators in the implementation of at least 600 shots. The use of large thickness of the applied layers is not advisable due to the receipt of the fragile layer. The application of smaller thicknesses may lead to inaccurate results.

The introduction of restrictions on the use of the method used, at least three of the radioactive isotope selected from the group due to the following factors:

1. Currently known methods of vacuum deposition, including local, on the surface, including metal, various metal compositions containing two or more components.

2. Also known electroplating methods local application on the metal surface metal coatings containing impurities.

3. Decree the specific coating methods allow to obtain a metal coating with different content of chemical elements (metals) in them.

4. The resulting composition of metals with radioactive isotopes provide a significant number of combinations of radioactive isotopes, each of which allows to unambiguously characterize the composition of metals and, therefore, an instance of the rifle, the cartridge chamber and the barrel of which this composition is applied.

5. The standard equipment of the method of radioactive indicators provide ample opportunities for the implementation of the proposed method. Therefore, the unit of firearms can be confidently identified as used by the shell.

In a preferred embodiment, the identification in the process of manufacturing of firearms, preferably at prisciliano it, at least one sleeve is placed in a file (or database) of the manufacturer, as well as of the bodies of internal Affairs.

Hereinafter the invention will be illustrated in the examples of its implementation.

1. On the surface striker smoothbore hunting guns by vacuum deposition using vacuum post struck composition 3 metals containing these radioactive isotopes of cobalt, iron and Nickel. The composition applied composition depends on the composition of the target, from which the produced spray, as well as from the target temperature. Almost if estvo received combinations of the three metals indefinitely. The coating obtained was fixed on the surface of the striker by the method of heating. Upon delivery to the customer smoothbore hunting guns produced control shooting. The surface of the cap sleeves were analyzed using the method of radioactive indicators. The results made in the filing Cabinet. Further, upon detection of a sleeve used smooth-bore hunting rifles specific sample can be established by analysis of the surface of the capsule shells by the method of radioactive indicators and compare the obtained results with the data stored in the card file.

2. On the surface striker sniper rifle SV-99 method of electroplating was applied composition 3 metals containing iron, Nickel and strontium containing the appropriate radiotracers. The composition applied composition depends on the composition of the electrolyte, which made the application, and the process conditions. Practically the number of combinations of the three metals indefinitely. The coating obtained was fixed on the surface of the striker by the method of heating. Upon delivery to the customer instance sniper rifle SV-99 produced control shooting. The surface of the cap sleeves were analyzed using the method of radioactive indicators. The results made in the filing Cabinet. Further, upon detection Gil is s used an instance of the weapon can be set in the analysis of their surface by the method of radioactive indicators and compare the obtained results with the data stored in the index.

The use of such design allows to clearly identify rifled and smoothbore weapons.

Identification system used to identify firearms on the trail from the striker, characterized by the presence on the surface of the firing pin marking element, which used a mixture of at least three radioactive isotopes selected from the group consisting of69With,55Fe210Pb,63Ni and90Sr.



 

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