Other equipment

In this page we list other equipment of our laboratory which is available for users but not permanently connected netiher to the beamline nor the end station.

DC power supplies

For annealing of samples and evaporators following DC power supplies are available. All of them have independent setting of voltage and current limits.

model	Xantrex XKW 60-18	Xantrex XKW20-50	Sorensen DCS20-50	FuG MCP350-2000	EA PS2342-06B	EA PS2042-06B
maximum voltage	60 V	20 V	20 V	2000 V	2×42 V	42 V
maximum current	18 A	50 A	50 A	150 mA	2×6 A	6 A
	manual	manual	manual	manual	manual	manual

Picoampermeter

Keithley 6485 with analog output that can be connected to the A/D converter card and displayd by Mesh Monitor.

(manual )

Turbopumping stations

For cleaning the gas inlet system upon gas exchange, pumping of exchangeable evaporators or other user equipment, testing evaporators offline etc. two turbopumping stations (containig turbopump and membrane pump) can be used:

Fixed.    on/off   or browse parameters   together with edit parameter and confirm   Parameters:   002: standby (slow speed) on/off   309: actual rotation speed   340: pressure Manual venting valve. Air-cooled. Pirani gauge. (manuals station turbo membrane gauge controller )

On wheels.    on/off   or browse parameters   together with edit parameter and confirm   Parameters:   001: heating on/off   002: standby (slow speed) on/off   309: actual rotation speed Automatic venting when at ½ of nominal speed. Air-cooled. (manuals station turbo membrane controller ) Full range gauge.   (manuals sensor controller )

Glove bag and nitrogen gas line

Glove bag can be installed on the load lock. Filling it with nitrogen from the gas line can avoid exposing surfaces of sensitive samples to air during insertion or removal. Moreover, other operations like electrochemical treatment or drop deposition from solutions on the sample can be performed in the glove bag. The nitrogen gas comes from the boil-off of the main liquid nitrogen tanks (99.9995%, impurity level about 5 ppm) at Elettra. We expect that the gas is extremely pure regarding condensible gases (water, oil vapour etc.) but the purity when it is delivered at the beamline is unknown. Our view is that most of the impurities in the gas phase of the glove bag come from the plastics, and the handling, not from the purge gas.

Nitrogen gas line is also used for venting load lock or other chambers.

Pyrometers

Two models of Micro-Epsilon pyrometers are available. The highest spectral sensitivity is at 2.3 μm wavelength. model CTVM-3LSF-C3 CTVM-3H2SF-C3 temperature range 50-400 °C 200-1500 °C spot size (~350 mm distant) 6 mm 1.5 mm 90% of the radiated energy is from the indicated spot. sample sample holder type T×E range Cu(111) Crystals 0.01-0.03 Ir(100) Crystals 0.05-0.07 Pd(111) Crystals 0.06-0.09 Si(111) Silicon wafer 0.3-0.5 Si(119) Pocket with clamps 0.2-0.3 Ta foil Pocket with clamps 0.2-0.3 Au foil Sapphire plates 0.1-0.2 Pd(111) STM type 0.05-0.1

Install the desired pyrometer rigidly (e.g. using Bosch profiles) near a suitable vacuum viewport, pointing it towards the sample surface. Remove the protective cap from the pyrometer optics (if present). Connect the correct blue cable to the pyrometer and switch on the respective USB port on the hub situated on the side of the left experimental rack. For some sample positions we also recommend to switch off the ionization (hot cathode) gauge; LED lights do not matter. Start the software CompactConnect and let it pair with the pyrometer. For mechanical alignment use the integrated video camera and/or the laser cross (Video and/or Laser buttons in the software, respectively). There is a mechanical rotary knob to adjust the camera focus. Emissivity E and transmissivity T can be adjusted using Setup and Emiss. buttons in the software, both have the allowed range 0.1-1.1. Therefore, their product T×E determining the temperature reading accuracy is adjustable in the range 0.01-1.21. Our tests gave T×E values as listed in the table on the left. If you want to calibrate the pyrometer using the information from the thermocouple touching your sample be aware that the thermocouple may show lower temperature than the real one is, depending on the quality of the thermal contact. Therefore, spot-weld the thermocouple directly to the sample if possible. At the end of your work close the software and switch off the USB port on the hub. Before any risky manipulation with the pyrometer cover the optics with protective plastic cover. manuals : pyrometers, software

UV lamp

UVP Pen-Ray 90-0004-01 (3SC-9) with PS-4 power supply.



The lamp can be used for cleaning the samples from carbon, by exposing them to ozone in air.

Water cooling circuit (supplied by Elettra)

Demineralized water. For cooling of evaporators, quartz crystal microbalance and other user equipment. Open Inlet (open fully). Outlet (open slightly to reach 1.5 bar). Close Outlet (close fully). Inlet (close fully).

Independent chiller

Used for X-ray source cooling.

Spotwelder

Weldman 10 Output 2.7 V, 800 A max Range 1 - short pulse, range 2 - longer pulse (manual )

Balance

KERN PCB 100-3 Minimum 5 mg Maximum 100 g Resolution 1 mg (manual )

Chemical lab

The information about the chemical lab offering also an oven, supersonic bath, hood and other equipment can be found on the webpage of the Elettra support lab. Users must request the access to the chemical lab in VUO (Requests for Elettra Laboratories and Services - Support Lab services requests) and pass a short training.