Posted on 22nd May, 2012
Isotopic precision, especially on small samples, relies on an optimal signal to noise ratio in the collector system. Hence it is crucial that Faraday amplifier noise is at an extremely low level and is stable across a range of integration periods. The Johnson law describes the theoretical noise...
Posted on 30th April, 2012
TIMS analysis of very small (picogram) sample loads results in ion signals that are small and short lived. Whilst the ion-counting Daly can be used in peak jumping mode for such samples, the constantly varying signal intensity really calls for a multi-collector approach and in these circumstances multiple ion-counting becomes the...
Posted on 24th April, 2012
Click here to download Purchasing a new TIMS can be a long and involved process. Uppermost in the mind of many prospective purchasers is the question ‘Who else uses this instrument’? To help answer this question we’ve created a bibliography of selected publications where an Isotopx TIMS system was...
Posted on 12th March, 2012
India’s prestigious Atomic Mineral Directorate for Exploration and Research recently accepted a Phoenix TIMS into their geochronology laboratory. The laboratory has a website at https://www.amd.gov.in/labs/newTIMS.htm which gives details of the installation. The following paragraph is taken directly from AMD’s TIMS webpage… ‘The Directorate has procured a new state of the art Thermal...
Posted on 28th February, 2012
Phoenix has been recognized as the most sensitive TIMS currently available. In order to characterize the system we analyzed small loads of NBS 987 to test Sr ionization efficiency and provide an insight into typical system performance. Using a modified loading technique with a tantalum activator on a rhenium center filament, very high atom to ion...
