© Copyright X-Spectrum GmbH 2014-2017 Impressum


Depending on the sensor material the following specifications are valid:

  Silicon   GaAs           CdTe Energy range: 6 - 25 keV 8 - 75 keV 8 - 150 keV Adjustable threshold range: 4 - 40 keV 5 - 50 keV 5 - 75 keV

Depending on the size the following specifications are valid:

60K 250K 350K 750K(Si) 750K(other)       2M(Si)       2M(other) Detector pixels: 256x256 512x512 512x764 512x1536    512x1528     1536x1536     1536x1528 Sensor area: 14x14mm 2 28x28mm 2 28x42mm 2 28x85mm 2     28x85mm 2        85x85mm 2         85x85mm 2                                                                         We are also able to build detectors of different sizes and/or in different geometries. Upon request detectors can also be made vacuum compatible. Please inquire for detailed specifications.
Back to products Back to products Subscribe to our newsletter        . Contact us for more details Contact us for more details Data Sheet 60K Data Sheet 60K Data Sheet 350K Data Sheet 350K Data Sheet 750K Data Sheet 750K Data Sheet 2M Data Sheet 2M specifications are subject to change without notice Data Sheet 250K Data Sheet 250K Developments Developments Features Features
Comparison of different LAMBDA sizes. From left to right: LAMBDA 2M, 60K & 250K housing, 750K & 350K housing.

Specifications for the different options of


LAMBDA cameras are distinguished by their size. A 60K unit consists of a single Medipix3 chip, 250K systems tile 2x2 chips together, 350K units have 6 chips in a 2x3 arrangement, 750K units feature 12 chips in either 2x6 or 2 times 2x3 arrangement and 2M units have a total of 36 chips as we efficiently combine 3 750K units on top of each other.

All versions have the following common features:

Pixel size: 55 µm x 55 µm Sensor: 300 µm-thick Silicon, 500 µm-thick GaAs or 1000 µm-thick CdTe Max frame rate: up to 2000 frames per second in 12 bit mode Counter depth: 12 bit with zero time gap between images, 24 bit with 1 ms time gap between images Count rate (w/ corr.):  up to 2.5x10 8  cts/mm 2 /s (at 10% deviation from linear) Noise: Photon counting – noise free at 5 keV Cooling: Air cooling, water cooled for 2M systems External trigger: 3.3V TTL
PDF Summary PDF Summary