As long as you have your SILBERSALZ35 films in your carry-on baggage, you’ll be fine. Almost all carry-on baggage scanners work with a dose of X-ray radiation harmless to SILBERSALZ35.

To be safe, you should ask the security personnel for a “hand check”. That’s a decision which can only be made by the security personnel, but works most of the time. If they deny it, politely ask for their supervisor.