Duetto 1

Duetto 1 is now discontinued and replaced by Duetto 2

Of course, eXaminArt still offers maintenance, upgrade and customization services for the 1st generation Duetto.  Please contact us for any request about your Duetto 1.

Instrument composition:

The instrument is composed of two main components:

  1. An analytical head that contains the X-ray source, the X-ray detector, a camera for high-resolution imaging to the area analyzed, a laser for alignment,
  2. A power/control unit comprising an embedded PC, power supplies, batteries for 4hrs of autonomous operation (hot swappable for extended operation), linked to the analytical head via a 3m cable.

Duetto 1.1 analytical head.

 

Duetto 1.1 power and control unit built in a rugged case.

 

A number of optional mounts are offered to complement the instrument.

A critical mount option is the micro-positioner, developed specifically for Duetto.  It offers X-Y-X adjustment for precise positioning of the head on the area to analyze, and 2 rotations allowing to adjust to approaching the tangent to the surface on the point analyzed.

 

The micro-positioner includes 3 precision manual linear stages for XYZ positioning and 2 manual rotations.

 

micro-positioner connects with the Duetto head via quick-connect.

 

Animation of the micro-positioner rotations

 

Most applications in the field require the study tripod wit custom extension arm, tilt head and additional stabilizing legs.

Easy operation:

After alignment of the instrument on the object using an embed imaging system and fine laser beam, the XRD/XRF analysis is started. The CCD X-ray detector is read several times per minute and the data visualized on the computer in real time. The user can retrieve data during acquisition for preliminary analysis. Both XRD and XRF data are extracted from the series of CCD exposures using the instrument embedded data processing. XRF data is obtained from the exact same area of the object as XRD. While the XRF performance of Duetto doesn’t match that typical handheld XRF spectrometers used in Cultural Heritage research, it is very informative and practical in helping with the phase identification of complex samples, or confirming the nature of the phases found independently by XRD.

XRD data analysis

XRD data of Duetto can be analyzed with any powder XRD analysis package. Unless the user already owns such an application, we recommend Xpowder (provided as an option), and the online tool QAnalyze.com.

A free diffraction database is provided that includes most crystalline phases expected in cultural heritage material. Other 3rd party databases and XRD programs can also be used to satisfy the user’s preferences.

Example of applications: