ABSORBER TUBE

The invention relates to an absorber tube (1) comprising a central metal tube (2) a glass cladding tube (2) a glass cladding tube (4) and a glass metal transition element (10). The metal tube (2) and the glass metal transition element (10) are connected to each other by means of an expansion compensation device (20) such that they can be displaced relative to each other in the longitudinal direction wherein the expansion compensation device (20) is arranged at least partially in an annular space (6) between the metal tube (2) and the glass metal transition element (10). In the annular space (6) at at least one end (1a b) of the absorber tube (1) at least one shielding device (50) is arranged which has a first annular disc shaped section (52) which is arranged at an axial distance in front of the end face (110) and covers at least the connection region (100) of the attachment element (30) and the inner end (22) of the expansion compensation device (20).