UNIVERSITY OF WATERLOO - NOTICE OF INTENT TO AWARD A SINGLE SOURCE CONTRACT: 18-118
Cryogen free 1.65 K cryostat with superconducting magnet
The University of Waterloo (UW) intends to award a single source contract for the purchase of a cryogen free 1.65 K cryostat, with superconducting magnet, to attocube of Munich, Germany, as outlined below.
This is an advanced Notice indicating to the supplier community that UW intends to award a contract for this fabrication to a pre-identified supplier. If no other supplier submits, on or before the closing date of this Notice, a statement of qualifications that satisfies the stated requirements set out in this Notice, within budget, the competitive requirements of the University are considered to have been met. Following notification to any suppliers not successful in demonstrating that their qualifications and proposed approach meets the requirements set out in this Notice, the contract may then be awarded to the pre-identified supplier.
Requirements
The primary purpose of this instrument will be to explore, both optically and electrically, single quantum dots, single quantum emitters and photonic nanostructures at low temperatures down to 1.65 K. It will also be used to perform electrical measurements that require both DC and high frequency connections. The cryogen free 1.65 K cryostat with optical access and superconducting vector magnet requires the following specifications and options:
- Continuous base temperature of 1.65 K, with automated temperature & magnetic field control from 1.65 K to 300 K
- Superconducting magnet with 8T/2T vector magnet
- Optical access with low temperature compatible, apochromatic objective for the NIR (transmission > 80% from 400 nm to 1000 nm)
- Integrated touchscreen for setting the desired field (B) and temperature (T) without using a PC
- Measurements such as programmable sweeps of B and T via a USB connection and a LabVIEW interface
- Temperature stability better than ±5 mK at 1.5 K over 10 hours
- PCB boards for sample with electrical access designed to enable quick and easy sample exchange, while offering a generous sample space
- Two (2) semi-rigid coaxial cables for high frequency operation up to 2 GHz
- 24 DC manganin wires as twisted pairs for electrical operation
- Closed-loop positioners that operate from 1.65 K to 300 K
- Cooling performance via exchange gas coupling providing an initial cooldown time of the complete system of not less than 15 hour
- Compressor, pumps and all necessary accessories included required to operate closed-cycle cryostat
- Setup of the system on site with full operation test (SAT)
- Turn-around time during sample exchange not more than 8 hours
- Ultra-low vibration measurement platform for cryogenic scanning probe and single quantum dot experiments without the need for liquid helium.
The University’s budget for this acquisition is approximately $650,000 CAD, before HST.
SINGLE SOURCE JUSTIFICATION:
Attocube specializes in the manufacturing of toploading, dry, low vibration cryostats. Due to a proprietary design, mechanical vibrations created by the pulse-tube coldhead are decoupled from the measurement platform. Vibration amplitudes of less than 0.15 nm RMS are routinely achieved (bandwidth of 200 Hz, vertical direction). The University is not aware of another supplier who can supply these devices that provide this functionality for the particular requirements of the research.
Suppliers who offer this equipment and expertise, and who can provide references supporting a proven track record, are requested to contact us:
Process
Suppliers who can provide this device functionality within budget may submit a statement of specifications, in writing, detailing their product(s), capabilities and successes to the attention of the contact person identified below, on or before the closing date of this Notice.
Date of issue: Thursday, November 29, 2018
Closing Date: Friday, December 14, 2018, at 4:30 P.M. Local Time
Contact:
Christine Wagner, CPPB, CSCP – Research Coordinator and Senior Buyer
Procurement and Contract Services
University of Waterloo
200 University Avenue West
Waterloo, ON N2L 3G1
Ph: 519-888-4567 ext. 32074
Email – cpwagner@uwaterloo.ca, or, procure@uwaterloo.ca
