POLARIS Instrument Details - ISISComputingGroup/ibex_developers_manual GitHub Wiki

This page collects information that will be useful for the implementation of the IBEX control system on POLARIS.

Background & Timeline

POLARIS is a diffractometer instrument at ISIS, on TS1. The POLARIS web page describes the background to the instrument.

Control System

POLARIS will migrate from the SECI control system to the IBEX control system.

POLARIS Equipment

The equipment listed below is used on POLARIS. Please add new information (e.g. new items of equipment, new notes, information about drivers, etc. to this table).

Manufacturer Model Type Connection Driver Notes
ISIS DAE 2 Detector Electronics Ethernet see DAE note
ISIS Mk2 Chopper Chopper RS-232 see Chopper note
GALIL DMC2280 Motion Controller Ethernet EPICS see Galil note
JJ-XRAY 4 x 4-blade jaws Blades driven by Galils. see JJ X-Ray note
1 x 4-blade jaws Blades driven by Galils. Mounted inside sample tank
ISIS Mk3 Chopper Chopper Ethernet/.NET #169
Pfeiffer TPG300 ISIS Vacuum System RS232 #216 see Pfeiffer note
Pfeiffer TPG26x Gas Handling System RS232 #1411 see Pfeiffer note
Eurotherm Temperature Controller All models at ISIS RS-232 EPICS see Eurotherm note
Chell CCD100 Pressure Transducer RS-232 #1827 see Chell note
Keithley 2400 Source Meter RS-232 #1826 see Keithley note
Oxford Instruments Orange Cryostat Cryogenic System see Oxford Instruments note
Oxford Instruments Blue Cryostat Cryogenic System see Oxford Instruments note
Oxford Instruments Dilution Fridge (Kelvinox) Cryogenic System see Oxford Instruments note
McLennan PM600 Motion Controller RS-232 EPICS see McLennan note
ISIS Eurotherm & Keithley Resistivity Measurements RS-232 Only an offline experiment to date see Resistivity note
ISIS POLARIS Sample Changer Sample Changer RS-232 Copy of GEM device
Applied Measurements Ltd INT2-L Pressure Transducer RS-232 Used in the Hydrothermal Reaction Cell see Hydrothermal Reaction Cell note
ISIS POLARIS Pressure Cell Controller Pressure Cell Controller RS-232 see Pressure Cell Controller note
Spellman SL600 high-voltage power supply N/A see Spellman note
ISIS CS155 centre stick high voltage centre stick N/A see HV Centre Stick note

Note: DAE

Main Detector banks + fixed monitors.

Note: Choppers

One T0 chopper. Chopper is ISIS Mk2 chopper. Mk2 choppers have a serial interface (not Ethernet like Mk3).

Note: JJ X-Ray

JJ X-Ray 4-blade jaws All blades are driven by Galils. POLARIS has two screens for managing all 5 sets of jaws:

  1. One screen to view & edit settings for jaw sets 1 -4 and display settings for jaw set 5
  2. A separate screen (Jaws Manager) to view & edit settings for all 5 jaw sets

Note: Pfeiffer
  1. Model TPG 26x
  2. Model TPG 300

Note: Chell

Experiments requiring pressure transducer. Chell CCD100

Note: Pressure Cell Controller

The pressure cell controller on POLARIS is a copy of the same device on PEARL. At the current time (April 2017), it has not been used on POLARIS for some time. However, it may be used at some future point (but probably not for another 12-18 months, by which time we should have implemented support for the pressure cell controller on PEARL).

Note: Keithley

Experiments requiring source meter. Keithley 2400 Source Meter

Note: Eurotherm

Used to control temperature Orange Cryostat devices.

Note: Oxford Instruments
  1. Orange Cryostat: models to be determined. Orange cryostats are controlled via a temperature controller (e.g. Eurotherm), so nothing on the cryostat itself for IBEX to control.
  2. Blue Cryostat: models to be determined.
    1. Are these the Heliox and ITC devices?
    2. The Heliox device has a sorption insert (is that relevant to the control system?)
  3. Dilution fridge: models to be determined.
    1. Kelvinox dilution fridge

Note: McLennan
  1. One McLennan is used raise/lower the sample-stick
  2. Another single-axis McLennan is used to rotate the sample-stick

Note: Galil

GALIL_02 is currently set up to use QR instead of DR mode because DR mode stopped working. This is the same issue as documented in Ticket #2191.

Note: Hydrothermal Cell

Uses the INT2-L pressure transducer.

Note: Resistivity Measurements

An evacuated furnace cell for measuring resistivity. Controlled by Eurotherms and measured by Keithleys (models 2000, 2400?)

Note: Spellman High Voltage Power Supply

6kV, 100mA, 600W, DC power supply. Not possible to control this device via software.

Note: CS155 Centre Stick

Not possible to control this device via software. It connects to the Spellman HV-PS.

POLARIS SECI Configs

Document information about POLARIS SECI configs here.

Configuration Name Sub-Configurations Last Accessed Required
POLARIS Base + Hydrothermal Chopper, Vacuum, Jaws, Eurotherms Test 03/02/2017 -
POLARIS Base + Dilution Fridge Chopper, Vacuum, Jaws, Oxford - Dilution Fridge 15/12/2016 -
POLARIS Base + Sample Changer + Eurotherms_matt Chopper, Vacuum, Jaws, Eurotherms Test, Sample Changer 12/12/2016 -
POLARIS Base + Sample Changer + Eurotherms + Heliox Chopper, Vacuum, Jaws, Eurotherms Test, Sample Changer, Heliox 19/09/2016 -
POLARIS Base Chopper, Vacuum, Jaws 30/11/2015 -
POLARIS Base + Sample Changer + Eurotherms Chopper, Vacuum, Jaws, Eurotherms Test, Sample Changer 18/11/2015 -
POLARIS Base + Sample Changer + Eurotherms + ITC_matt Chopper, Vacuum, Jaws, Eurotherms Test, Sample Changer 25/06/2015 -
POLARIS Base + Eurotherms Chopper, Vacuum, Jaws, Eurotherms Test 05/06/2014 -
POLARIS Base + Keithley (Voltage) + Eurotherms Chopper, Vacuum, Jaws, Eurotherms Test, Keithley (Voltage) 02/06/2014 -
POLARIS Base + Keithley + Eurotherms Chopper, Vacuum, Jaws, Eurotherms Test, Keithley 25/03/2013 -
delete - 01/10/2012 -
POLARIS Base + Sample Changer Chopper, Vacuum, Jaws, Sample Changer 14/03/2012 -
test - 10/11/2011 -

POLARIS Genie Scripts

Similarly, document information about SECI Genie scripts currently used on POLARIS here.

POLARIS Notes