Vogt, Marco (2021) Setting Sights on a New Target: Working Towards Understanding Transitional Flow from a Capillary. Bachelor's Thesis, Applied Physics.
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Abstract
In this crossed beam experiment, a narrow beam of selected ions is aimed at a target of H$_2$ gas. The installation of a movable capillary for the injection of H$_2$ has created a new set of challenges in determining the optimal capillary position and the shape of the target profile. On April 26, 2021, the CHEOPS experimental setup in Groningen was fitted with a 100 mm long and 1 mm diameter capillary mounted to a 3-axis translation stage. By manipulating the position of the capillary, the optimal setting for maximum target intensity at the beam was found to be X = 12.65 mm, Z = 11.50 mm. At heights lower than Y = 50.0 mm, the capillary was found to physically block the charge exchange products when used for time of flight spectroscopy. Scanning the capillary along the X and Y direction and recording the countrate at varying positions allows for a visualization of the target profile. This was conducted for hydrogen and deuterium target molecules at flow rates of 2, 7, and 20 percent of 5 ml/min.
| Item Type: | Thesis (Bachelor's Thesis) |
|---|---|
| Supervisor name: | Hoekstra, R.A. and Schlatholter, T.A. |
| Degree programme: | Applied Physics |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 15 Jul 2021 12:18 |
| Last Modified: | 15 Jul 2021 12:18 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/25109 |
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