Fakta om udbudet
Udbyder
Danmarks Tekniske Universitet — DTU
Vindere
(24.02.2020)
BlueScientific Ltd
CB4 0WS
Cambridge
K3 Base IS - Direct electron detection camera
(06.04.2020)
BlueScientific Limited
Cambridge
Direct Electron Detection Camera
Danmarks Tekniske Universitet — DTU
Voluntary ex ante transparency notice
Supplies
Directive 2014/24/EU
Section I: Contracting authority/entity
National registration number: 30060946
Postal address: Anker Engelunds Vej 1
Town: Kgs. Lyngby
NUTS code: DK02
Postal code: 2800
Country: Denmark
Contact person: Katrine Freiesleben Petersen
E-mail: kafre@dtu.dk
Telephone: +45 45252525
Internet address(es):
Main address: http://www.dtu.dk
Section II: Object
Direct Electron Detection Camera
Upgrade of Titan ETEM GIF system with K3 Base IS direct electron detection camera.
The Center for visualizing catalytic processes (Vision), a Center of excellence funded by DNRF (Danish National Research Foundation), wants to buy a camera to upgrade an existing instrument, an aberration-corrected Titan environmental transmission electron microscopy (ETEM) delivered by Thermo Fisher Scientific. The microscope is located at the premises of Haldor Topsoe A/S, and VISION is granted access according to a collaboration agreement between DTU Physics and Haldor Topsoe A/S.
The camera has be a most sensitive detector for atomic-resolution transmission electron microscopy (TEM) measurements in order to suppress beam-induced sample alterations in the best possible way. The camera should be able to deliver images at 1Å resolution at low electron beam currents (< 10-20 e/(Å2s)) and low electron doses (< 10-20 e/(Å2)). Currently, the most sensitive detectors available are Direct electron detection (DED) cameras operated in single electron counting modes. The camera sensitivity expressed by its detection quantum efficiency (DQE) must be as high as possible reaching at a minimum > 50 % at ½ Nyquist and > 80 % at 0 Nyquist for 300 keV electrons.
Moreover, as Vision aims for imaging dynamics of single nanoparticles in operando during catalysis, the DED also must provide a real-time single electron counting mode with online real-time data processing/acquisition for dose-fractionated imaging, focal series acquisition and drift correction. The time-resolution has therefore to be as good as possible and the full sensor readout speed has to be as high as possible reaching at a minimum > 1 000 frames per second (corresponding to > 10 000 000 pixels).
Furthermore, Visions core scientific goal is to relate atomic structure, dynamics and functions of single nanoparticles. The camera will therefore have to be interfaced with a detector system to enable both tuning the microscope’s aberration-corrector for atomic-resolution TEM imaging of nanoparticles and simultaneous electron energy loss spectroscopy (EELS) of their catalytic functions.
Such a detector system is available on the Topsoe Titan ETEM. It consists of a Gatan Image Filter (GIF) spectrometer for EELS with a post-GIF charged-coupled device (CCD) detector and a pre-GIF CCD camera that is radiation-hard for tuning the microscopes aberration-corrector.
The camera must successfully pass the following site-acceptance test:
1) Mounting on-axis and pre-GIF position;
2) Demonstrate tuning the aberration-corrector to
(i) enable an isotrope information transfer for spatial frequencies up to 1Å-1 at 300 keV; and
(ii) imaging at 1Å resolution in TEM mode, both tasks executed on the existing on-axis and pre-GIF charged-coupled device (CCD) camera. These specifications corresponds to the current performance of the microscope;
3) Demonstrate 1Å resolution on DED camera at 300keV and ca. 1s exposure with 10 e/Å^2/s in high vacuum mode of a Au/C cross-grating using electron counting mode;
4) Demonstrate focal image series acquisition and magnification readout;
5) Demonstrate EELS with zero-loss peak having a full-width half-maximum of 1eV at 300 keV, as on existing post-GIF CCD camera;
6) X-ray safety specs for Titan ETEM are maintained after mounting.
Section IV: Procedure
- The works, supplies or services can be provided only by a particular economic operator for the following reason:
- absence of competition for technical reasons
Vision needs a sensitive DED camera with the technical specifications described above. The DED camera must be from Gatan Inc. because
1) To reach Visions scientific goal, the new camera must be interfaced with a radiation-hard camera (e.g. a CCD) to enable tuning of the microscope’s aberration-corrector and with a spectrometer for EELS. This functionality exists on the Topsoe Titan ETEM. Its detector system is entirely delivered by Gatan Inc (described above);
2) It would be costful and time-consuming, and in part even technical impossible, to replace the existing camera configuration while keeping its functionality: (i) The pre-GIF CCD camera is tightly integrated with the microscope optical column, its aberration corrector and a 12-year-old software solution for the aberration-correction technology. Any replacement would require new control software and new electronic interfacing of the optical components on the microscope. (ii) Gatan has monopoly on commercial EELS spectrometers;
3) The detector interfacing on the microscope is delivered by Gatan and the whole detector configuration is serviced by Gatan. Hence revising Gatan’s interfacing to include a DED detector from a supplier competing with Gatan is considered impossible. Conversely, Gatan is expected to abandon service in case a competing supplier would be able to interface Gatans detectors on the instrument.
Thus, Gatan Inc. becomes the only optional supplier for a DED camera since VISIONs scientific goals request both atomic resolution imaging and spectroscopy and VISION will exploit a Titan ETEM system interfaced with an older Gatan-interfaced detector system.
Blue Scientific Ltd. is the only supplier in Denmark which can deliver the camera from Gatan Inc.
Section V: Award of contract/concession
Postal address: CB4 0WS
Town: Cambridge
NUTS code: UK
Country: United Kingdom
Section VI: Complementary information
Postal address: Nævnenes hus, Toldboden 2
Town: Viborg
Postal code: 8800
Country: Denmark
E-mail: klfu@erst.dk
Telephone: +45 35291000
Internet address: http://www.klfu.dk
Complaint regarding the award of contract:
Complaint regarding the award of contract must be submitted no later than 45 calendar days from the date after the contracting authority has published a contract award notice in the European Union Official Journal informing that the contracting authority has awarded the contract, cf. lov om Klagenævnet for Udbud § 7, Section 2, No 1.
Complaint regarding direct award of contract:
Complaint regarding the contracting authority’s award of contract without prior publication of a contract notice in the European Union Official Journal must be submitted no later than 30 calendar days from the date after a contract award notice has been published by the contracting authority in the European Union Official Journal and that contract award notice includes the grounds for the decision to award the contract directly, cf. lov om Klagenævnet for Udbud § 7, Section 3.
Postal address: Carl Jacobsens Vej 35
Town: Valby
Postal code: 2500
Country: Denmark
E-mail: kfst@kfst.dk
Telephone: +45 41715000
Internet address: http://www.kfst.dk