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An apparatus for perforating a wellbore comprises a housing, at least one perforating charge disposed within the housing, a detonation cord coupled to the at least one perforating charge, and a booster coupled to an end of the detonation cord. The booster comprises a booster body having a first end

An apparatus for perforating a wellbore comprises a housing, at least one perforating charge disposed within the housing, a detonation cord coupled to the at least one perforating charge, and a booster coupled to an end of the detonation cord. The booster comprises a booster body having a first end and a second end, a cavity defined within the booster body between the first end and the second end, an explosive material disposed within the cavity adjacent the first end, and a locking feature disposed adjacent the second end, where the locking feature is configured to allow the booster to engage the end of the detonation cord in a first direction and resist movement in a second direction.

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1. An apparatus for perforating a wellbore comprising: a housing;at least one perforating charge disposed within the housing;a detonation cord coupled to the at least one perforating charge;a booster coupled to an end of the detonation cord, wherein the booster comprises: a booster body having a fir

1. An apparatus for perforating a wellbore comprising: a housing;at least one perforating charge disposed within the housing;a detonation cord coupled to the at least one perforating charge;a booster coupled to an end of the detonation cord, wherein the booster comprises: a booster body having a first end and a second end,a cavity formed within the booster body between the first end and the second end, wherein the cavity is defined by an inner surface of the booster body,an explosive material disposed within the cavity adjacent the first end, anda locking feature disposed adjacent the second end, wherein the locking feature is configured to allow the booster body to engage the end of the detonation cord in a first direction and resist movement in a second direction, and wherein the locking feature comprises one or more teeth disposed on the inner surface of the booster body that extend inward from the inner surface of the booster body into the cavity, wherein the detonation cord is coupled to the booster by an engagement between the teeth and the detonation cord; anda crimp formed in the booster body, wherein the crimp engages the end of the detonation cord. 2. The apparatus of claim 1, wherein the teeth penetrate a surface of the detonation cord. 3. The apparatus of claim 1, wherein the booster further comprises a second locking feature, and wherein the second locking feature comprises an external retaining member disposed about the detonation cord and the booster, an adhesive, or any combination thereof. 4. The apparatus of claim 1, wherein the first direction is towards the interior of the cavity. 5. The apparatus of claim 4, wherein the second direction is substantially opposite the first direction. 6. A booster for use with an explosive device assembly in a wellbore comprising: at least one perforating charge;a detonation cord coupled to the at least one perforating charge, wherein the detonation cord is coupled along its length to the at least one perforating charge, and wherein the detonation cord comprises an outer insulation layer and an inner explosive layer;a booster body comprising a first end and a second end;an explosive material disposed within the booster body adjacent the first end; anda locking feature disposed adjacent the second end, wherein the locking feature is configured to allow the second end of the booster body to receive an end of the detonation cord, wherein the locking feature comprises one or more teeth disposed on the inner surface of the booster body that extend inward from the inner surface, wherein the end of the detonation cord is disposed within the booster body through the second end, and wherein the one or more teeth penetrate the outer insulation layer of the detonation cord. 7. The booster of claim 6, wherein the locking feature comprises an adhesive, and wherein the adhesive is disposed between an interior surface of the booster body and the detonation cord. 8. The booster of claim 6, wherein the locking feature comprises the external retaining member, and wherein the external retaining member is disposed about an exterior of the booster body and an exterior of the detonation cord. 9. The booster of claim 6, wherein the locking feature is configured to maintain the end of the detonation cord within about 0.1 inches of the explosive material within the booster body. 10. The booster of claim 6, wherein the locking feature is configured to maintain the end of the detonation cord in engagement with the explosive material within the booster body. 11. The booster of claim 6, wherein the locking feature is disposed over a surface of the booster body for at least about 5% of a length of the booster body. 12. The booster of claim 6, further comprising a crimp in the booster body, wherein the crimp engages the detonation cord. 13. A method for preparing a perforating gun assembly for use in a wellbore comprising: providing a perforating gun comprising a housing, at least one perforating charge disposed within the housing, and a detonation cord coupled along its length to the at least one perforating charge; andcoupling a booster to an end of the detonation cord using a locking feature, wherein the booster comprises a cavity formed within a booster body, wherein an explosive material is disposed within the cavity adjacent a first end of the booster body, wherein the end of the detonation cord is inserted into a second end of the booster body, wherein the locking feature is configured to allow the booster to engage the end of the length of the detonation cord in a first direction into the second end of the booster body and resist movement in the opposite direction out of the cavity;maintaining an alignment between the booster and the detonation cord using the locking feature after coupling the booster to the end of the detonation cord; andcrimping the booster to the detonation cord while the locking feature maintains the alignment between the booster and the detonation cord. 14. The method of claim 13, wherein the locking feature comprises an adhesive, an external retaining member, or any combination thereof. 15. The method of claim 13, further comprising disposing the perforating gun assembly in a wellbore. 16. The method of claim 15, further comprising detonating the at least one of the perforating charges in the perforating gun assembly. 17. The method of claim 13, wherein the locking feature further comprises one or more gripping features. 18. The method of claim 17, wherein the one or more gripping features comprise one or more protrusions disposed on an inner surface of the booster body that extend inward from the inner surface. 19. The method of claim 17, wherein the one or more gripping features are configured to penetrate a surface of the detonation cord. 20. The method of claim 19, wherein coupling the booster to the end of the detonation cord using the locking feature comprises: inserting the end of the detonation cord into the second end of the booster body,retracting the end of the detonation cord, andpenetrating the surface of the detonation cord with the gripping features in response to retracting the end of the detonation cord.