Quorum Technologies

INTRODUCTION TO QUORUM TECHNOLOGIES

Quorum Technologies own the Polaron brand, and in early 2006 they also purchased Emitech. ProSciTech is the sole distributor for these three brands in Australasia, south of Singapore. Some additional data may be available from www.quorumtech.com.

Warranty: Quorum Technologies offer a standard 12 months warranty on all instruments. This can be extended to 3 years by filling in and returning the registration form. Pumps are excluded from the extension.

Standard Coolstage
Standard Coolstage
Ultra Coolstage
Ultra Coolstage
Coolstage keypad controller
Coolstage keypad controller
SEM COOLING/HEATING STAGES

The Coolstage is a Peltier-driven SEM cooling stage for scanning electron microscopy (SEM), low vacuum (LV) or variable pressure (VP) applications. The stage can be cooled to sub-zero temperatures for specimens that may be sensitive at ambient temperature, subject to beam damage, or may otherwise 'sublime' (lose water) at ambient temperatures.

There are three versions of coolstage - Standard, Enhanced and Ultra - to cover differing specimen requirements.

NB: For a full low temperature cryo preparation system for SEM (including rapid freezing, vacuum transfer, cold fracturing, sublimation and sputtering) please see the PP3000T.


Standard Coolstage

  • Temperature range -30°C to 50°C at 300Pa
  • Self contained cooling - no additional external cooling water needed
  • Temperature accuracy /- 1.5°C or 2% - whichever is greater
  • Minimal image drift
  • Cooling and heating rates of up to 30°C per minute
  • Keypad control - with simultaneous display of actual and target temperature
  • Supplied with SEM chamber port feed-though - specify make and model of SEM when ordering
  • Microprocessor controlled
  • 230V, voltage tolerance /- 10%
  • One-year warranty
  • Comes with 15 each of the flat and dish-style specimen stubs, K120-SF, K120-SD


Enhanced Coolstage

  • Temperature range -30°C to 160°C at 300Pa
  • All other specifications as per Standard Coolstage


Ultra Coolstage

  • Temperature range -50°C to 50°C at 300Pa
  • All other specifications as per Standard Coolstage


Additional Information about the Coolstage

K120E
Coolstage, enhanced, -30°C to +160°C
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K120S
Coolstage, standard, -30°C to +50°C
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K120U
Coolstage, ultra, -50°C to +50°C
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Specimen stubs for Coolstage
K120-SF, K120-SD
SPECIMEN STUBS FOR COOLSTAGE

Diameter 10mm.

K120-SD
Specimen stubs for Coolstage, dish-style
AUD140.00
pk/10
BACKORDER 
K120-SF
Specimen stubs for Coolstage, flat
AUD102.00
pk/10
BACKORDER 
Cryo preparation system for SEM, FE-SEM and FIB/SEM
CRYO-SEM PREPARATION SYSTEM

for SEM, FE-SEM and FIB/SEM applications

The PP3010T is the very latest in cryo-SEM technology - combining the highest quality results with unparalleled ease of set up and use. The PP3010T is a column-mounted, gas-cooled cryo preparation system suitable for SEM, FE-SEM and FIB/SEM. Control is via a large and intuitive touch-screen panel PC mounted on the self contained Prepdek™ workstation. Visibility is a key feature throughout the whole system. CCD images from the preparation chamber and the SEM (fitted if space allows) are displayed on the control screen, and a large front window and top viewing ports give unsurpassed visibility of the specimen and chamber interior. The PP3010T includes facilities needed to rapidly freeze and transfer specimens. The aQuilo cryo preparation chamber has tools for cold fracturing and for fully automatic sublimation and specimen coating. Once prepared, the specimen can be transferred onto a high stability SEM cold stage for observation. Extensive cold trapping in the aQuilo cryo preparation chamber and SEM can be set to operate at temperatures down to below -190°C, ensuring the whole process occurs in a contamination free, high-vacuum environment.

Features

  • Recipe driven touch-screen interface
  • Fully automated processes and start up
  • Gas cooled aQuilo preparation chamber
  • Superb specimen visibility
  • Cooling to -190°C or better with rapid thermal response
  • Off column and pimping - minimum mass on the SEM
  • Up to 24 hours hold times - no more topping of Dewars
  • Single port interface available (if microscope geometry allows)
  • Compatible with SEM voltage bias mode (up to 5kV)

Additional Information about the Cryo-SEM preparation system

CryoSEM with JEOL Field Emission Scanning Electron Microscope and Quorum CryoSEM

KPP3010T
Cryo-SEM preparation system, turbo pumped
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Quicklok
Quicklok
QUICKLOK

Ambient Temperature Airlock

This is not just a sample loading system, but more importantly it allows transfer under vacuum or in inert gas. One of the main applications is the transfer of oxygen‐sensitive samples, such as lithium battery and solar cell materials, from a glove box environment to an SEM or FIB/SEM. For this purpose we now have an optional 25852 glove box transfer interface.


The QuickLok provides a rapid way of transferring ambient temperature specimens into SEM, FIB/SEM or other suitable vacuum systems. A key feature of the QuickLok is the ability to vacuum transfer specimens that are sensitive to normal environmental conditions. The transfer device uses a sealed vacuum chamber which can be interfaced to a glove box for inert gas transfer or allow transfer from a wide range of vacuum platforms.


Features

  • Rapid specimen exchange
  • Vacuum and inert gas transfer
  • Upgrade path to CoolLok
  • Custom designed holders available
  • Three‐year warranty


System components
Mounted onto a suitable vacuum chamber port, the QuickLok consists of a loading chamber body with integrated controls for pumping, venting and transfer. A custom‐designed interface flange and connections to the pumping system are included (see: Pumping below).
The compact vacuum transfer device has a bayonet fitting to a dovetail‐profile specimen holder (shuttle). Standard shuttles are included, but optional holders allow different specimen types to be handled.
Inside the SEM is a stage to accept the specimen shuttle. To aid specimen exchange an interlocked LED chamber light is mounted to the inside of the QuickLok interface.

Using the QuickLok
The specimen is mounted on a suitable holder and the transfer device fitted onto the vacuum airlock. The airlock and transfer device are then evacuated to a pre‐set vacuum, the gate valve opened and the specimen guided onto the SEM stage.
For transfers from other vacuum systems, or a glove box, additional interface flanges are available on request.

Pumping
The QuickLok requires either a rotary pump or oil‐free vacuum turbo pumping station (see Options).

NB: For a full quotation, including on‐site installation and customer training, please contact Quorum


Ordering Information

PP3004 QuickLok airlock/transfer systemConsisting of: Airlock assembly. Pump, vent and transfer control buttons, gate valve and fittings to the pumping system (see: Pumping below). Custom designed interface flange to the microscope vacuum chamber SEM dovetail stage to accept the specimen holder. LED chamber light (interlocked) 12340 specimen transfer device for vacuum or inert gas transfer Specimen holders. 20720 specimen shuttle with holding clips, 12434 specimen shuttle blank, AL200077B specimen shuttle (to hold a 10 mm diameter specimen stub), E7402 blank 10 mm stubs ‐ packet of 10
PumpingThe KPP3004 QuickLok requires either a rotary pump or an oil‐free, high vacuum turbomolecular pumping station (recommended).
130345 m3/hr Pfeiffer Duo 6 rotary vacuum pump with oil mist filter.
24426Pfeiffer HiCube 80 turbomolecular and diaphragm pumping system.
Simple controls for specimen exchange
Simple controls for specimen exchange
Specimen loading
Specimen loading
QuickLok specimen stage and adaptor to SEM
QuickLok specimen stage and adaptor to SEM
QuickLok and specimen transfer device
QuickLok and specimen transfer device
KPP3004
QuickLok, ambient temperature airlock
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CoolLok
CoolLok
COOLLOK

Cryo Transfer System for SEM, FIB/SEM, Beamline and Vacuum Platforms

The CoolLok offers rapid transfer and cryo temperature observation of specimens for SEM, FIB/SEM, beamline or other suitable vacuum systems. Freezing is on contact with the pre‐cooled SEM cold stage, or specimens can be rapidly pre‐frozen in slushy liquid nitrogen using the optional 24429 freezing station.
Applications include thermal protection of beam‐sensitive specimens and low temperature observation of materials such as plastics, polymers low‐K dielectrics and hard‐soft mixtures. The system can also be used for inert gas transfer of ambient temperature specimens from a glove box.
This does not replace the PP3010T, which is a full cryo preparation system (with cold fracturing, sputtering etc.), but might be useful for observing a range of solid, non‐water based, materials under cryo conditions.

Features

System components

Vacuum airlock and cooling gas feedthrough
Mounted onto a suitable vacuum chamber port, the CoolLok consists of a loading chamber body with built‐in controls for pumping, venting and transfer. A custom‐designed interface flange to the vacuum chamber and connections and fittings to the pumping system are included (see: Pumping below). The interface has cold nitrogen gas feeds to and from the microscope cold stage and cold trap.

Specimen holders and transfer device
The compact vacuum transfer device has a bayonet fitting to a dovetail‐profile specimen holder (shuttle). Standard shuttles are included, but optional holders allow a range specimen types to be handled.

Cold stage and cold trap
A highly stable and thermally isolated nitrogen gas‐cooled cold stage attaches to the SEM stage. The location and shape of the cold trap is tailored to suit the internal geometry of the microscope. Both cold stage and cold trap are capable of reaching temperatures down to ‐190°C with a stability of <0.5°C. For easy specimen exchange an interlocked LED chamber light is fitted.
The cold stage connects to the SEM stage using an adaptor and has a dovetail fitting to accept a cryo specimen holder. When not in use the cold stage is uncoupled and stored within the chamber with the gas and electrical fittings connected.

Cooling dewar, trolley and controller
The cold stage and cold trap are cooled by a floor‐mounted, vacuum isolated 21 litre dewar and heat exchanger assembly, which at normal operating temperatures can run for up to 24 hours between fills. The gas lines between the dewar and the SEM interface are vacuum isolated for maximum thermal efficiency.
The cooling dewar is located on a floor‐mounted trolley which also houses the temperature monitor/controller for the cold stage and temperature monitor for cold trap, plus nitrogen gas flow controllers.

Rapid freezing station (24429)
With the standard CoolLok, specimen freezing is by contact with the SEM cold stage following transfer and therefore freezing rates are relatively slowly. This is suitable for hard, non‐hydrated specimens, but for liquid‐based material rapid freezing is essential to reduce the detrimental effects of ice crystal growth and to allow through‐vacuum transfer onto the cold stage.
For these applications the optional 24429 nitrogen slush freezing station is required. However, for many applications (especially lifesciences) cold fracturing and sputter coating are essential process steps and require the advanced capabilities of the Quorum KPP3010T ‐ a full cryo‐SEM preparation system.

Using the CoolLok
The specimen is mounted on a suitable holder (shuttle) and the transfer device fitted onto the airlock and the dead space evacuated to a set vacuum level. The gate valve is opened and the specimen guided onto the SEM stage.
For transfers from other vacuum systems, or a glove box, additional interface flanges are available on request. Vacuum transfers can be made from the optional 24429 trolley‐mounted nitrogen slush freezing station, if fitted.

Pumping
The CoolLok requires either a rotary pump or an oil‐free turbo pumping station (see Ordering Information).

Ordering Information

PP3006 CoolLok ‐ non‐airlock cooling systemConsisting of: Airlock assembly. Pump and vent control buttons, gate valve and fittings to the pumping system (see: Pumping below). Custom‐designed interface flange to the microscope vacuum chamber. Cooling system. Nitrogen gas cooled stage with heater and sensor and cold trap with temperature sensor. Precise temperature control with a range down to 190°C, 21 litre liquid nitrogen dewar with trolley, heat exchanger and LED chamber light. 12340 specimen transfer device. Specimen holders. 3 x AL200077B specimen shuttle (to hold 10 mm ⌀ cryo stubs), 12434 blank specimen shuttle, 20720 specimen shuttle with holding clips, E7402 blank 10 mm ⌀ stubs (packet of 10), 5 x E7449‐7 multi‐purpose specimen stubs. Note: other optional holders are available. Specimen mounting compounds (colloidal graphite and Tissue‐Tek ®), interlock cable and pump fittings.
PumpingThe PP3006 CoolLok requires either a rotary pump or an oil‐free, high vacuum turbomolecular pumping station (recommended).
130345 m3/hr Pfeiffer Duo 6 rotary vacuum pump with oil mist filter.
24426Pfeiffer HiCube 80 turbomolecular and diaphragm pumping system.

Options and accessories
24429rapid cooling station consisting of a floor‐mounted trolley, liquid nitrogen freezing chamber mounted into the work surface which interfaces to the cryo transfer device, connections to vacuum pump (order separately).
PP7450/60Lpressurised (60 L) liquid nitrogen dewar. Boil‐off nitrogen gas is used for cooling stage and cold trap.
13296Sircal in‐line gas dryer. Helps to reduce the water content of the nitrogen gas supply, if an external gas source is used.
 The range of specimen holders available with the KPP3010T can be used. Please contact Quorum for a complete list or visit: KPP3010T specimen holders
On-microscope components: airlock, cold stage, cold trap plus cryo transfer device
On-microscope components: airlock, cold stage, cold trap plus cryo transfer device
CoolLok cold stage and airlock
CoolLok cold stage and airlock
Cold stage
Cold stage
Specimen loading
Specimen loading
Load lock with vacuum isolated gas cooling lines
Load lock with vacuum isolated gas cooling lines
Cooling and gas flow control
Cooling and gas flow control
KPP3006
CoolLok, cryo transfer system for SEM, FIB/SEM, Beamline & Vacuum Platforms
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SEMCool
SEMCool
SEMCOOL

Non-airlock Cryo Cooling for SEM and FIB/SEM

The SEMCool is based on the KPP3006 CoolLok but without the KPP3004 QuickLok components. It is designed for cryogenic applications where airlock exchange of specimens into the microscope is not required.


Features

  • Temperature range down to -190°C with stability better than 0.5°C
  • Off-column cooling with all-day runtime between fills
  • Independent cooling of cold stage and cold trap
  • Upgrade path to KPP3006 CoolLok
  • Three-year warranty

Cold stage and cold trap
A highly stable and thermally isolated nitrogen gas-cooled cold stage attaches to the SEM stage. The location and shape of the cold trap is tailored to suit the internal geometry of the SEM. Both cold stage and cold trap are capable of reaching temperatures down to -190°C with a stability of <0.5°C. For easy specimen exchange an interlocked LED chamber light is fitted.
The cold stage connects to the SEM stage using an adaptor and has a dovetail fitting to accept a cryo specimen holder. When not in use the cold stage is uncoupled and stored within the chamber with the gas and electrical fittings connected.

Cooling dewar, trolley and controller
The cold stage and cold trap are cooled by a floor-mounted, vacuum isolated 21 litre dewar and heat exchanger assembly which at normal operating temperatures can run for up to 24 hours between fills. The gas lines between the dewar and the SEM interface are vacuum isolated for maximum thermal efficiency.
The cooling dewar is located on a floor-mounted trolley which also houses the temperature and gas control system.

Using the SEMCool
Vent the microscope and manually locate specimen holder on the cold stage. Evacuate the microscope and then cool the SEMCool down to the required temperature. To exchange specimen, warm to above 0°C and vent the SEM.

Pumping
The SEMCool requires a rotary pump to periodically evacuate the vacuum isolated lines (see Ordering Information).


Ordering Information and Compatibility Details

PP3005 SEMCool non-airlock cooling systemConsisting of: Nitrogen gas cooled stage with heater and sensor and cold trap with temperature sensor. Precise temperature control with a range down to 190°C, 21 litre liquid nitrogen dewar with trolley, heat exchanger and LED chamber light. Pump fittings (see: Pumping below). Temperature and nitrogen gas flow controller mounted on the dewar trolley. Specimen holders. 3 x AL200077B specimen shuttle (to hold 10 mm Ø cryo stubs), 12434 blank specimen shuttle, 20720 specimen shuttle with holding clips, E7402 blank 10 mm Ø stubs (packet of 10), 5 x E7449-7 multi-purpose specimen stubs. Note: other holders are available from Quorum. Specimen mounting compounds (colloidal graphite and Tissue-Tek ®).
PumpingThe PP3005 requires a rotary pump for evacuating the vacuum isolated gas lines.
130345 m3/hr Pfeiffer Duo 6 rotary vacuum pump with oil mist filter.

Options and accessories
13296Sircal in-line gas dryer. Helps to reduce water content of nitrogen gas supply if an external gas source is used
The range of specimen holders available with the PP3010T can be used. Please contact Quorum for a complete list or visit: PP3010T specimen holders
Gas cooled SEM FIB/SEM stage
Gas cooled SEM FIB/SEM stage
SEMCool cooling system
SEMCool cooling system
Heat exchanger
Heat exchanger
Temperature controller
Temperature controller
KPP3005
SEMCool, non-airlock cryo cooling for SEM and FIB/SEM
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