High Efficiency Total Absorption Spectrometer HECTOR for capture reaction measurements

Reingold, Craig; Olivas-Gomez, O.; Simón, A.; Arroyo, Joseph; Chamberlain, M.; Wurzer, Jack; Spyrou, A.; Naqvi, F.; Dombos, A. C.; Palmisano, A.; Anderson, T.; Clark, Adam M.; Frentz, B.; Hall, M. R.; Henderson, S. L.; Moylan, Shane; Robertson, Daniel; Skulski, Michael; Stech, E.; Strauss, S.; Tan, Wanpeng; Kolk, B. Vande

doi:10.1140/epja/i2019-12748-8

Cited by 19 publications

(4 citation statements)

References 18 publications

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“…long, with a 1.8 in. diameter borehole along its axis [12], 4𝜋 calorimeter installed at the Dynamitron Tandem Laboratorium (DTL) of the Ruhr-Universität Bochum, Germany consists of 12 × 12 inch NaI(Tl) detector (BICRON) with a borehole of diameter 35 mm along its axis [13], MTAS (Modular Total Absorption Spectrometer) from Oak Ridge National Laboratory [14], DTAS ( Decay Total Absorption Spectrometer) from FAIR [15], HECTOR (High EffiCiency TOtal absorption spectrometeR) from University of Notre Dame, U.S.A. [16], a 5 ′′ × 5 ′′ cylindrical detector from the Australian National University (ANU5x5) and a 6 ′′ × 5 ′′ well type cylindrical detector from the Australian Nuclear Science and Technology Organisation (ANSTOwell). Another possibility to make a total absorption spectrometer is to use large volume BGO crystals [17].…”

Section: Jinst 18 P12014mentioning

confidence: 99%

“…There is a large volume NaI(Tl) crystal made 𝛾-summing detector at SINP which can be used in multiple ways. Recently, there has been a noticeable increase in the use of large NaI(Tl) detectors as total absorption spectrometers (TAS) all over the world [12,[14][15][16]. Before, total gamma-energy spectrometers were utilised with the huge scintillators to pick high spin states that were inhabited in compound nuclear processes.…”

Section: 𝜸-Summing Detector At Sinpmentioning

confidence: 99%

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Characterization study of NaI(Tl) γ-summing spectrometer

Sharma

2023

J. Inst.

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The accurate information regarding the β-decay half-life, feeding pattern from the neutron-rich nuclei have utmost importance in the field of nuclear waste management from the fission reactors as well as correct understanding about the r-process nucleosynthesis in stellar sites. The low capture cross-section measurements are also considered as major task by experimental nuclear astrophysicists. These kinds of measurements are really difficult with conventional high-resolution gamma spectroscopy techniques due to less efficiency of the detectors. For this purpose, we have an almost 4π γ-summing NaI(Tl) spectrometer at SINP, Kolkata. It is basically a cylindrical shaped detector with six sectors of NaI(Tl) crystals read by 6 photomultiplier tubes (PMT) at one end. The detailed characterization of the spectrometer via experiment using laboratory standard sources and GEANT4 simulation model to interpret all the interesting properties will be presented here in this paper.

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Section: Jinst 18 P12014mentioning

confidence: 99%

Section: 𝜸-Summing Detector At Sinpmentioning

confidence: 99%

Characterization study of NaI(Tl) γ-summing spectrometer

Sharma

2023

J. Inst.

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“…To extend the measurements of lowenergy reactions, the combined underground environment for background suppression and high intensity ion beam delivery, is further enhanced through the use of high efficiency detection systems. Amongst the standard use of high-purity Germanium (150%) detectors, CASPAR takes advantage of high efficiency 4π detectors such as an array of 20 3 He gas filled tubes for neutron detection [159] and the High EffiCiency TOtal absoRption NaI array (HECTOR) [160] for γ-ray detection. Both detector systems demonstrate up to 50% efficiency, with an additional benefit for γ detection of utilizing the summing technique for excellent peak identification and separation for higher Qvalue reactions.…”

Section: Caspar: Compact Accelerator System For Performing Astrophysi...mentioning

confidence: 99%

The status and future of direct nuclear reaction measurements for stellar burning

Aliotta¹,

Buompane²,

Couder³

et al. 2021

J. Phys. G: Nucl. Part. Phys.

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The study of stellar burning began just over 100 years ago. Nonetheless, we do not yet have a detailed picture of the nucleosynthesis within stars and how nucleosynthesis impacts stellar structure and the remnants of stellar evolution. Achieving this understanding will require precise direct measurements of the nuclear reactions involved. This report summarizes the status of direct measurements for stellar burning, focusing on developments of the last couple of decades, and offering a prospectus of near-future developments.

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“…Total absorption spectroscopy is being used to study β-strength distributions for applications in nuclear structure [16,17,18], reactor decay heat [19,20,21], and nuclear parameters relevant to astrophysical applications via techniques like the β-Oslo method [22,23,24,25]. TAS detectors have also been used to measure capture reaction cross sections for astrophysical calculations [26,27]. This work is based on measurements and simulations using the SuN detector at Michigan State University [15].…”

Section: Introductionmentioning

confidence: 99%

Two-dimensional total absorption spectroscopy with conditional generative adversarial networks

Dembski¹,

Kuchera²,

Liddick³

et al. 2022

Preprint

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We explore the use of machine learning techniques to remove the response of large volume γ-ray detectors from experimental spectra. Segmented γ-ray total absorption spectrometers (TAS) allow for the simultaneous measurement of individual γ-ray energy (E γ ) and total excitation energy (E x ). Analysis of TAS detector data is complicated by the fact that the E x and E γ quantities are correlated, and therefore, techniques that simply unfold using E x and E γ response functions independently are not as accurate. In this work, we investigate the use of conditional generative adversarial networks (cGANs) to simultaneously unfold E x and E γ data in TAS detectors. Specifically, we employ a Pix2Pix cGAN, a generative modeling technique based on recent advances in deep learning, to treat (E x , E γ ) matrix unfolding as an image-to-image translation problem. We present results for simulated and experimental matrices of single-γ and double-γ decay cascades. Our model demonstrates characterization capabilities within detector resolution limits for upwards of 90% of simulated test cases.

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High Efficiency Total Absorption Spectrometer HECTOR for capture reaction measurements

Cited by 19 publications

References 18 publications

Characterization study of NaI(Tl) γ-summing spectrometer

Characterization study of NaI(Tl) γ-summing spectrometer

The status and future of direct nuclear reaction measurements for stellar burning

Two-dimensional total absorption spectroscopy with conditional generative adversarial networks

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