Progress, Performance, and Prospects of Ultra-High Resolution Microcalorimeter Spectrometers

Material Protection, Accounting, and Control Technologies (MPACT) Advanced Integration Roadmap

“…The primary thrust for R&D in NMA continues to be advancing the state of the art in measurement uncertainty and throughput (see for example Hoover, 2016 andLauniere, 2015), addressing hard to measure samples (such as the direct measurement of Pu in spent fuel or molten salts), and developing concepts and approaches for advanced facilities that have not been deployed at commercial scale (for example fast reactors and pyroprocessing). Advances in this area lessen the advanced integration problem since uncertainty quantification is straight forward and quantitative, direct results obtained.…”

Preliminary Assessment of Microwave Readout Multiplexing Factor

“…Ultra-high resolution microcalorimeter gamma spectroscopy is a new non-destructive assay technology for measurement of plutonium isotopic composition, with the potential to reduce total measurement uncertainty to a level competitive with destructive analysis methods [1][2][3][4]. Achieving this level of performance in practical applications requires not only the energy resolution now routinely achieved with transition-edge sensor microcalorimeter arrays (an order of magnitude better than for germanium detectors) but also high throughput.…”