Method for producing an anode for a cold cathode x-ray source

A production method (P) for producing an anode (A) for a cold cathode X-ray source, comprising the following steps:

• A. producing an element referred to as target (C) from a first material adapted to generating X-rays from the absorption of an electron beam, the first material having a first thermal expansion coefficient Ce,1(Tu) at a predetermined temperature Tu of use of the anode in said X-ray source,
• B. producing an element referred to as target support (SC) from a second material having a second thermal expansion coefficient Ce,2(Tu) at the predetermined temperature Tu,
• C. joining the target to the target support by hard soldering using a solder material, at a soldering temperature higher than a melting point of the solder material and in such a way as to form a film of solder (FB) interposed between the target and the target support, said predetermined temperature Tu being lower than said melting point of the solder material.