|HGS 63-250 valved mercury evaporation source on DN63 CF (O.D. 4.5") mounting flange with 250 cm³ evaporator reservoir|
The Valved Mercury (Hg) Evaporation Source HGS is designed for evaporation of elemental mercury in standard UHV or MBE systems. The source consists of the 250 cm3 evaporator, heated by a thermostat, the heated valve and the heated injector unit which acts as the interface to the UHV system. Both components valve and injector are heated independently to avoid material condensation.
|HGS 63-250 source mounted to UHV chamber|
|Easy and safe refilling is provided by an additional container which is mounted to the equalizing tank and which can be filled from air side.
The vacuum tight pneumatic valve allows venting the MBE system without breaking the vacuum inside the HGS evaporator.
The mercury source HGS has been developed in cooperation and is built under license of University of Würzburg (Germany) and with the advice of Dr. C.R. Becker from the University of Würzburg.
|Equalizing tank with level control viewport|
Most applications in II-VI Hg MBE need a high throughput of up to 10-30 g Hg/h for optimum growth conditions. With its large equalizing tank of 3000 cm³ (40 kg Hg) the HGS guarantees stable flux conditions and suitable loads for a growth campaign.
1. Injector tube
2. Cell flange
3. All-metal valve
4. Evaporator reservoir
5. Equalizing tank
|Filament type||3 separate heater-circuits (thermostat, valve & injector)|
|Thermocouple||2x type K Chromel/Alumel (injector/valve); 1x PT100 (reservoir)|
|Operating temperature||injector: 210°C; valve: 230°C; reservoir: 180°C|
|Outgassing temperature||injector: 250°C; valve: 230°C; reservoir: 180°C|
|Flux control||integrated valve unit|
|Valve control||pneumatic operation, manual and remote control with TTL signal|
For general information on CF mounting flanges see Flange and Gasket dimensions.
|[cm3]||[mm] / [mm]||[W] / [A]||Product code|
|HGS||63* -||250**-||LxxxD36||2300 / 10||HGSU control unit|
|*||other mounting flange diameters on request|
|**||heated reservoir capacity (equalizing tank 3000 cm3)|
|***||specify UHV length L with order|