Phd Candidate, Cryogenic Vibration Isolation for
2 weken geleden
Vacaturenr.
15153
Functie-categorie
PhD-posities
Omvang (fte)
1,0
Extern/intern
Extern
Locatie
Leiden
Geplaatst op
24 september 2024
Sluitingsdatum
25 oktober 2024
The Faculty of Science, Leiden Institute of Physics and the National institute for subatomic physics Nikhef is looking for a
The Einstein Telescope (ET) aims to employ cryogenic cooling of its test masses to lower coating and suspension thermals noise such that the detection band lower limit can be stretched to about 3 Hz. The cooling machinery and heat links will induce additional vibrations that must be shielded or otherwise reduced.
In this PhD position, jointly supervised by Tjerk Oosterkamp and Bas Hensen at Leiden University and Joris van Heijningen at the Vrije Universiteit Amsterdam/Nikhef, you will develop novel techniques to reduce low frequency vibrations at cryogenic temperatures. This position is funded by the “R&D-regeling technologiedomeinen Einstein Telescope”. You will be working mainly in Leiden.
**Key responsibilities**
- Finite element modelling of vibration filter designs;
- Working together with the fine-mechanics departments at Leiden and Nikhef to build such systems;
- Measurement and analysis of the device performance at cryogenic temperatures in one of the Leiden dilution refrigerators;
- Co-developing magnetically levitated cryogenic 6D acceleration sensors to characterize vibrations at millikelvin temperatures;
- Communicating closely and effectively with the team members and project partners (Onnes Technologies, SRON, JPE B.V.) about progress and findings.
- Assist with teaching and student supervision;
- Complete a PhD thesis within four years (1.0 FTE).
**Selection Criteria**:
- Research Master, MSc or similar in mechanical engineering, physics or a related field.
- Excellent command of the English language coupled with excellent communication skills;
- Well
- developed analytic and organisational skills;
- The ability to work independently and in a group/collaboration.
- Skills in finite element analysis, measurement and control systems, superconductivity (desirable)
**We offer**
- To work at an insitute with great facilities for your research;
- A global network of gravitational-wave researchers for you to engage with.
**Research at The Faculty of Science and Nikhef**
**How to apply**
Applications are written in English and include a
- Cover Letter indicating the motivation for the project (max one A4)
- Curriculum vitae
- Copies of transcripts of degrees obtained
- Contact details of two references that could be contacted after the deadline
- Applications should be submitted as a single pdf file.
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