• Ramirez, F.
• Tatulea, B.
• Ur, C. A.
• Balabanski, D. L.
• Aogaki, S.
• Turturică, G.
• Dhal, Anukul
• Suliman, G.
• Testov, D.
• Petcu, C.

Abstract

<jats:title>Abstract</jats:title><jats:p>We report a dedicated setup built in-house for the annealingof the HPGe clover detectors of the ELI-NP Array of DEtectors(ELIADE) γ-ray spectrometer, as well as the post-annealingtesting of these detectors with the standard <jats:sup>60</jats:sup>Co &amp; <jats:sup>152</jats:sup>Euradioactive calibration sources employing conventional analogelectronics. Both the design and assembly of the annealing setupwere performed at the Extreme Light Infrastructure — NuclearPhysics (ELI-NP) facility, Măgurele, Romania. A `radiationdamage annealing assembly kit' (NRK-200 unit) from the detectormanufacturer Canberra is utilized in heating and controlling thetemperature of the Ge crystals of the annealed detector.The vacuuminside the detector was maintained throughout the annealing processby constantly pumping the system using a turbo-molecular pumpingstation. The temperature of the germanium crystals, located inside avacuum sealed chamber, of the detector and the vacuum level of thischamber were monitored throughout the annealing process, via bothin-person observation and remote (online) monitoring. The GraphicUser Interface (GUI) of an underlying LabVIEW script was utilizedfor running the monitoring process of the temperature and vacuumpressure values via a local network. To have the option of real-timeonline monitoring of the temperature, vacuum pressure, we coupledthe web application Grafana with the Influx DB of the annealingdata, as well as the backup time information of an UninterruptiblePower Supply (UPS) unit used in system.</jats:p>

Topics

• impedance spectroscopy
• annealing
• ultraviolet photoelectron spectroscopy
• Germanium