A method and system for detecting a magnetic field utilizing a magnetoresistor of a magnetic sensor is disclosed. However, the institution system does not have access to the document after an expiration of an amount of time. The resulting magnetron reliably prevents discharges generated between the joining surface of the stem insulating material, with the tubular metal container, and the joining surface, with the cathode leads. The mass is thereby given an intermittent up- and downwards movement in the mass treatment chamber and the tempering capacity of the apparatus is improved. Image data derived from the watermarked data\u2014e.