Specific aspects associated with mammography
Breast X-rays are dense: therefore, a high level of luminance and perfectly homogeneous lighting are essential for reliable screening. Some micro-calcifications can only be detected with an excellent contrast and no glare.
While many manufacturers have focused on the light power, Ella Legros has chosen to concentrate on meeting new expectations expressed by radiologists, giving priority to lighting quality and homogeneity on the entire illuminated area.
The French health authorities have issued a quality control protocol for mammography installations (revised in July 1998). It is important to note that this protocol itself refers to the European protocol "European Guidelines for Quality Assurance in Mammography Screening" dated May 1996 and the DIN standard, but is more demanding in terms of homogeneity criteria.
Epoxy treated 10/10 sheet steel metal box frame with anodised aluminium uprights
Straight fluorescent tubes "daylight type" light source, colour temperature 6500° Kelvin
2 manual horizontal and vertical shutters (motorised version also available). This system makes it possible to obtain a well-defined illuminated area, varying in size, at any point of the entire reading surface.
Light intensity: may vary to 7000 cd/m² depending on model
High frequency electronic ballasts. Allows light intensity regulation from 10 to 100%.
Adjustable transverse nylon wire to hold small formats in place
Switched on with dimmer
3 formats available :
SEN’X 12 for reading 2*6 films (18*24cm) and 2*4 films (24*30cm)
SEN’X 8 for reading 8 films (18*24cm) and 4 films (24*30 cm horiz.)
SEN’X 4 for reading 4 films (18*24cm) and 2 films (24*30 cm horiz.)
options available (depending on model): adjustable central film grip, canopy, mobile stand, adjustable magnifier, motorized shutters, set of supports to put the unit on a table
Lighting quality and particularly high homogeneity of our products. This a lot better than the standard request. On the SEN'X 8 for example, we have a mean deviation of 10% at 8cm while the standard sets the limit at 30%.