Details
| Original language | English |
|---|---|
| Article number | P08012 |
| Journal | Journal of Instrumentation |
| Volume | 14 |
| Issue number | 8 |
| Publication status | Published - 8 Aug 2019 |
| Externally published | Yes |
Abstract
The precise knowledge of beta spectrum shapes is relevant in radionuclide metrology, e.g. when determining the activity of samples containing beta emitting isotopes, as well as in fundamental research or applications such as nuclear medicine. We present a newly developed beta spectrometer that utilizes Metallic Magnetic Calorimeters (MMCs) which have 4π absorbers and operates at temperatures < 100 mK. Microfabricated MMC detectors designed for five beta energy intervals enable the measurement of beta spectra with endpoint energies Emax ranging from a few tens of keV up to 1 MeV. The different detector types are read out by Superconducting QUantum Interference Device (SQUID) current sensors with compatible input inductances. In particular, we discuss the MMC detector design, absorber/source preparation, data acquisition and handling of the relatively large measurement data sets. The realized setup allows for high resolution beta spectrometry, which was shown via a test measurement of 99Tc (Emax = 293.8 keV) using an external photon-emitting 241Am calibration source.
Keywords
- Calorimeters, Cryogenic detectors, Data processing methods, Spectrometers
ASJC Scopus subject areas
- Mathematics(all)
- Mathematical Physics
- Physics and Astronomy(all)
- Instrumentation
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In: Journal of Instrumentation, Vol. 14, No. 8, P08012, 08.08.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Development of a beta spectrometry setup using metallic magnetic calorimeters
AU - Paulsen, M.
AU - Beyer, J.
AU - Bockhorn, L.
AU - Enss, C.
AU - Kempf, S.
AU - Kossert, K.
AU - Loidl, M.
AU - Mariam, R.
AU - Nahle, O.
AU - Ranitzsch, P.
AU - Rodrigues, M.
N1 - Funding information: This work was supported by the European Metrology Programme for Innovation and Research (EMPIR) grant numbers 15SIB10 MetroBeta [7] and 17FUN02 MetroMMC [19]. The EMPIR initiative is co-funded by the European Union’s Horizon 2020 research and innovation program and the EMPIR Participating States. We thank Marco Schmidt and Lars Schikowski at the PTB Berlin for their support in designing and modifying the detector module.
PY - 2019/8/8
Y1 - 2019/8/8
N2 - The precise knowledge of beta spectrum shapes is relevant in radionuclide metrology, e.g. when determining the activity of samples containing beta emitting isotopes, as well as in fundamental research or applications such as nuclear medicine. We present a newly developed beta spectrometer that utilizes Metallic Magnetic Calorimeters (MMCs) which have 4π absorbers and operates at temperatures < 100 mK. Microfabricated MMC detectors designed for five beta energy intervals enable the measurement of beta spectra with endpoint energies Emax ranging from a few tens of keV up to 1 MeV. The different detector types are read out by Superconducting QUantum Interference Device (SQUID) current sensors with compatible input inductances. In particular, we discuss the MMC detector design, absorber/source preparation, data acquisition and handling of the relatively large measurement data sets. The realized setup allows for high resolution beta spectrometry, which was shown via a test measurement of 99Tc (Emax = 293.8 keV) using an external photon-emitting 241Am calibration source.
AB - The precise knowledge of beta spectrum shapes is relevant in radionuclide metrology, e.g. when determining the activity of samples containing beta emitting isotopes, as well as in fundamental research or applications such as nuclear medicine. We present a newly developed beta spectrometer that utilizes Metallic Magnetic Calorimeters (MMCs) which have 4π absorbers and operates at temperatures < 100 mK. Microfabricated MMC detectors designed for five beta energy intervals enable the measurement of beta spectra with endpoint energies Emax ranging from a few tens of keV up to 1 MeV. The different detector types are read out by Superconducting QUantum Interference Device (SQUID) current sensors with compatible input inductances. In particular, we discuss the MMC detector design, absorber/source preparation, data acquisition and handling of the relatively large measurement data sets. The realized setup allows for high resolution beta spectrometry, which was shown via a test measurement of 99Tc (Emax = 293.8 keV) using an external photon-emitting 241Am calibration source.
KW - Calorimeters
KW - Cryogenic detectors
KW - Data processing methods
KW - Spectrometers
UR - http://www.scopus.com/inward/record.url?scp=85072691437&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/14/08/P08012
DO - 10.1088/1748-0221/14/08/P08012
M3 - Article
AN - SCOPUS:85072691437
VL - 14
JO - Journal of Instrumentation
JF - Journal of Instrumentation
SN - 1748-0221
IS - 8
M1 - P08012
ER -