1. Automatic sample changer

  • 12 position solid sample holder in a 4 x 3 array. The samples should be in liquid-tight aluminium cells with thin mica or mylar windows (information on the supplier for windows can be give on request).
  • 6 position gel sample holder.
  • 6 capillary sample holder. Samples can be loaded into 1.5 mm diameter quartz capillaries within a thermostatic, water bath, controlled holder.
  • Basic capillary rack. A number of capillaries can be mounted vertically within an aluminium block. Please note that for weakly scattering systems, reproducibility and background subtraction may be more difficult in this set-up.

2. Lasers for temperature jump time-resolved studies

Laser 1: Fibre-coupled (200 µm diameter fibre), 50 W, 1470 nm CW laser gated by TTL pulse to achieve pulse lengths down to 1 ms.
Laser 2: Nanosecond laser system, with a tunable wavelength from ca. 700 to ca. 2000 nm. This system can deliver 10-70 mJ per pulse, depending on wavelength. (not available yet)

3. Solution SAXS and BioSAXS

Automatically controlled pipetting sample loader from two 96-well plates.
Thermostatic temperature control of the plates and the measuring capillary.
Minimum injectable sample volume is 20 μl.
In-line UV-Vis.
In-line HPLC.
Automated cleaning system.
Programmable sample queue.

4. Linkam heating stage (HFS-X350 with liquid nitrogen pump LNP96)

Silver block Linkam heating stage for 1.5 mm diameter capillaries. Heating and cooling rates up to 80 °C/min. Temperature range -195 to 300 °C, nominal stability 0.1 °C.

5. Linkam DSC stage (DSC-X600 with liquid nitrogen pump LNP96) (not available yet)

Single cell system to allow simultaneous heat flow measurements during rapid heating and cooling. Heating and cooling rates up to 80 °C/min. Temperature range -195 to 300 °C, nominal stability 0.1 °C. Samples should be sealed within liquid-tight aluminium cells with thin mica or mylar windows (information on the supplier for windows can be give on request).

6. Microfluidics flow cell

An adaptive microfluidic platform is being developed with the Balder and MicroMAX beamlines (SSF funded project Adaptocell). A thermoplastic microfluidic chip, e.g. those from microfluidic ChipShop, will be used at CoSAXS. The flow is pressure-driven using an external pressure controller (OB1 from Elveflow) where the flow rate is monitored using Microfluidic Flow Sensor (MFS from Elveflow) that works between 0.07ul/min and 1ml/min. Switching (Flow Switch Matrice from Elveflow) and mixing valves (Injection/Distribution Valve from Elveflow) capable of switching between 10 lines of samples and mixing 6 set of samples/reagents respectively, will be used to perform specific set of experiments as required.

7. SURF (SAXS/UV-Vis/Fluorescence)

(under commissioning)

Combined spectroscopy and SAXS measurements. 1.5 mm diameter, quartz capillary with peltier heating control.

8. Stopped flow rapid mixing device

(under commissioning)

Commercial instrument with four syringes and three mixing chambers.

9. Rheometer

(under commissioning)

A commercial rheometer with SAXS attachments has been purchased to develop a modular and flexible rheometric system both CoSAXS and ForMAX, via a collaboration with Chalmers University.

10. High precision sample scanning stages

(still to be purchased)

High precision stages for sample scanning will be available, via a collaborative development with cSAXS, PSI and Chalmers university.
There are no high-resolution scanning SAXS possibilities yet. Step scan is available, beam spot 100 x 100 um, resolution step 10 um, scanning area 1 x 1 cm.

11. User defined equipment and sample environment

User equipment can be mounted within the beamline, following appropriate safety assessment. Please discuss with the beamline scientist. Detailed sample environment information must be provided with the beamtime proposal for feasibility approval (sketch, electrical drawings, physical dimensions, …). Integration capabilities are very reduced. Autonomous operation is recommended. 5V TTL trigger pulse is available and a laptop at the sample position.