Facilities and Labs

Unique labs and facilities available to GEMADARC collaboration

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University of South Dakota

Zone refinement equipment

Zone Refiner Zone Refiner

Crystal growth furnace

Two crystal growth furnaces. Crystal growerfurnace

X ray orientation

X ray orientation

Diamond wire saw

Diamond wire saw

Hall effect

Hall effect

Sputter machine

Targets:

  • Ge
  • SiO2
  • Al

E-beam evaporation machine

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University of North Carolina

Majorana researchers prepare the Majorana Module before it is closed and inserted into the shield

UNC researcher finishes the installation of HPGe detector strings into a Module. (Only firefox respects EXIF ration information in the image. Chrome cannot handle it correctly at this moment.)

Majorana Researcher inspects the MJD Data-acqusition system

Majorana Researchers prepare to perform the pre-installation test of a detector string.

A prototype Majorana module is being used for testing and R&D at UNC.

The cryogenics and vacuums systems at UNC.

The prototype module and supporting system such as a glove box,electronics, cryogenics, at UNC.

A typical Majorana detector string with one Natural detector on the top and multiple enriched detectors below.

Texas A&M University

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UC Berkely and Lawrence Berkeley National Laboratory

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Black Hills State University

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University of Minnesota

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Tennessee Tech University

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Queen's University

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Tsinghua logo

Tsinghua University

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Max-Planck-Institut für Physik

The Max-Plank-Institute for physics operates three facilities to investigate germanium detectors:

Galatea

Galatea is designed to allow detector scans with alpha, beta and gamma sources. A system of three stages is located inside a vacuum tank. The infrared shield of the detector has slits along which the collimated sources can be moved. As the infrared shield can be rotated, complete mantle scans are possible. Currently, work is ongoing to fully automate Galatea.

Galatea is mainly used to study surface events.

K2

K2 is designed to allow detector scans with gamma sources. A system of three stages surrounding a temperature controlled vacuum cryostat makes complete mantle scans possible. The system is fully automated. Currently, work is ongoing to upgrade K2 with a Compton camera to allow for 3d scans.

K2 is mainly used to study drift paths patterns and the temperature dependence of pulse shapes.

Gerdalinchen II

Gerdalinchen II features a small cryogentic vessel which can be filled with liquid argon or nitrogen. Germanium detectors can be submerged in a controlled way avoiding icing.

Gerdalinchen II is mainly used to study the behaviour of detectors when directly submerged in cryo-liquid.

Institute of Physics, Academic Sinica

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