Development of decay energy spectroscopy using low temperature detectors

Jang, Y. S.; Kim, G.B.; Kim, K.J.; Kim, M.S.; Lee, H.J.; Lee, J.S.; Lee, K.B.; Lee, M.K.; Lee, S.J.; Ri, H.-C.; Yoon, Won-Sik; Yuryev, Yury; Kim, Yoon Hak

doi:10.1016/j.apradiso.2012.02.109

Cited by 21 publications

(6 citation statements)

References 21 publications

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“…Decay Energy Spectroscopy has been used with a number of different cryogenic microcalorimeters (see Figure 2), with half the research having been done with MMCs [25,[39][40][41][42][48][49][50][51]55,[60][61][62][63][64] and a quarter having been done with TESs [9,14,35,35,44,52,53,[57][58][59]. NTD-Ge thermistors were prevalent in the early research measuring 187 Re for neutrino mass measurements.…”

Section: Resultsmentioning

confidence: 99%

“…DES detectors were first used for neutrino mass measurements and have continued to be used for neutrino physics with half of the papers on this topic [14][15][16]19,21,25,35,[39][40][41]46,47,52,61,63,65,66]. A third of the papers deal with isotopic determination for safeguards [9,50,51,53,55,57,58,62,64]. The papers presenting details on atomic theory [17,42,44,60], for environmental purposes [48,49], and medical purposes [59] comprise the remainder of the applications as can be seen in Figure 3.…”

Section: Resultsmentioning

confidence: 99%

“…In 2007, the high energy (>2 MeV) measurements began. The Korea Research Institute of Standards and Science (KRISS) team used MMCs to measure the α-decaying isotopes of 241 Am and 226 Ra using the method of drying a solution onto a gold foil followed by diffusion-welding [48][49][50][51].…”

Section: High Energy Des Measurementsmentioning

confidence: 99%

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Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Koehler

2021

Applied Sciences

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Low Temperature Detectors have been used to measure embedded radioisotopes in a measurement mode known as Decay Energy Spectroscopy (DES) since 1992. DES microcalorimeter measurements have been used for applications ranging from neutrino mass measurements to metrology to measurements for safeguards and medical nuclides. While the low temperature detectors have extremely high intrinsic energy resolution (several times better than semiconductor detectors), the energy resolution achieved in practice is strongly dependent on factors such as sample preparation method. This review seeks to present the literature consensus on what has been learned by looking at the energy resolution as a function of various choices of detector, absorber, and sample preparation methods.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Koehler

2021

Applied Sciences

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“…MMCs have the potential to measure electron capture decay data in low to medium energy transitions with unprecedented precision without relying on uorescence yields [3]. MMCs offer excellent energy resolution, enable low energy thresholds as well, and near 100% detection e ciencies for electrons and photons in the decay energy spectroscopy (DES) measurement mode [4], [5]. Due to the long thermal time constants of the detector compared to the duration of the atomic rearrangement process, the energy of the individual Auger electrons and photons is summed up and read out as a single pulse.…”

Section: Introductionmentioning

confidence: 99%

Determination of fractional electron capture probabilities of 59Ni by means of Metallic Magnetic Calorimeters

Kaur,

Chambon,

Loidl

et al. 2023

Preprint

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The fractional electron capture probabilities of 59Ni were measured using Metallic Magnetic Calorimeters (MMCs). 59Ni was one of the radionuclides chosen as a part of the European metrology research (EMPIR) project MetroMMC. The measurement was performed by using the Decay energy spectroscopy (DES) technique, where the radionuclide is embedded in the absorber to have a 4π geometry. Two different source preparation techniques adapted for the measurement are also discussed: electroplating on gold and micro drop-dispensing on gold nanofoam. The total energy spectra obtained from both sources are compared with each other, and the measured fractional electron capture probabilities are compared with those available in the literature and from the BetaShape code.

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“…A new approach described here overcomes many of the drawbacks of conventional analysis methods. We use a superconducting transition-edge-sensor (TES) with an attached gold foil to absorb the decay radiation. − Plutonium isotopes in solution are deposited onto the gold foil and the solvent is allowed to evaporate, then the foil is folded to completely encapsulate the radioactive material. In principle, all decay products are captured in the foil, such that all decays result in a measurement of the single Q -value of the decaying isotope, regardless of the exact decay path.…”

mentioning

confidence: 99%

Measurement of the ²⁴⁰Pu/²³⁹Pu Mass Ratio Using a Transition-Edge-Sensor Microcalorimeter for Total Decay Energy Spectroscopy

et al. 2015

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We have developed a new category of sensor for measurement of the (240)Pu/(239)Pu mass ratio from aqueous solution samples with advantages over existing methods. Aqueous solution plutonium samples were evaporated and encapsulated inside of a gold foil absorber, and a superconducting transition-edge-sensor microcalorimeter detector was used to measure the total reaction energy (Q-value) of nuclear decays via heat generated when the energy is thermalized. Since all of the decay energy is contained in the absorber, we measure a single spectral peak for each isotope, resulting in a simple spectral analysis problem with minimal peak overlap. We found that mechanical kneading of the absorber dramatically improves spectral quality by reducing the size of radioactive inclusions within the absorber to scales below 50 nm such that decay products primarily interact with atoms of the host material. Due to the low noise performance of the microcalorimeter detector, energy resolution values of 1 keV fwhm (full width at half-maximum) at 5.5 MeV have been achieved, an order of magnitude improvement over α-spectroscopy with conventional silicon detectors. We measured the (240)Pu/(239)Pu mass ratio of two samples and confirmed the results by comparison to mass spectrometry values. These results have implications for future measurements of trace samples of nuclear material.

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Development of decay energy spectroscopy using low temperature detectors

Cited by 21 publications

References 21 publications

Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Determination of fractional electron capture probabilities of 59Ni by means of Metallic Magnetic Calorimeters

Measurement of the ²⁴⁰Pu/²³⁹Pu Mass Ratio Using a Transition-Edge-Sensor Microcalorimeter for Total Decay Energy Spectroscopy

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Development of decay energy spectroscopy using low temperature detectors

Cited by 21 publications

References 21 publications

Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Low Temperature Microcalorimeters for Decay Energy Spectroscopy

Determination of fractional electron capture probabilities of 59Ni by means of Metallic Magnetic Calorimeters

Measurement of the 240Pu/239Pu Mass Ratio Using a Transition-Edge-Sensor Microcalorimeter for Total Decay Energy Spectroscopy

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Measurement of the ²⁴⁰Pu/²³⁹Pu Mass Ratio Using a Transition-Edge-Sensor Microcalorimeter for Total Decay Energy Spectroscopy