Development of a low-temperature bolometer as an energy sensitive detector for molecular beam studies and investigation of the dynamics of energy transfer processes using molecular beam techniques
Abstract
A low temperature semiconductor bolometer detection system designed and constructed for molecular beam studies is described. The bolometer response to energy and its response can be quantified using a new calibration technique. The bolometer has been used to detect internally excited potassium bromide produced in the reaction K + Br2 yields KBr(+) + Br. The bolometer response to KBr(+) signal indicates that, in addition to the internal and translational energy carried by these Kbr(+) molecules, appreciable surface interaction energy is released also. The inelastic scattering of KBr(+) by ethanol, propane and dimethyl ether is described. The intensity of scattered KBr(+) is measured as a function of velocity and scattering angle using molecular beam techniques. The inelastic interactions of Kbr(+) with the polar molecules dimethyl ether and ethanol are similar to those with the nonpolar molecule, propane. In none of these systems is there any strong evidence for the formation of an energy randomizing complex, but transfer of vibrational energy from Kbr(+) to the partner vibrations is inferred.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1974
- Bibcode:
- 1974PhDT........59B
- Keywords:
-
- Bolometers;
- Energy Transfer;
- Molecular Beams;
- Bromine Compounds;
- Inelastic Scattering;
- Potassium Compounds;
- Vibration;
- Instrumentation and Photography