Cryogenic system connector

Cryogenic apparatus, comprising:

• a connector comprising:
• a connector base plate configured for connection to
• a conduit carrying a cryogen;
• a slot extending across the base plate;
• and
• a connector cover, comprising a first cover opening
• and a second cover opening, coupled to the base plate;
• a plug, which is configured for insertion via the first cover opening into an opening in the base plate;
• a latch plate configured to slide within the slot between a first position, in which the plug is inserted through an aperture in the latch plate into the opening, and a second position, in which a cryogenic probe is inserted via the first cover opening through the aperture and brought into fluid communication with the opening;
• a sensor, which is coupled to control a flow of the cryogen through the conduit by detecting whether the latch plate is in the first position or the second position;
• a control rod which penetrates the second cover opening and a further aperture in the latch plate and which is configured to operate the sensor;
• and
• a button, attached to a termination of the control rod so as to lie outside the connector cover.