First use of single-crystal diamonds as fission-fragment detector

Frégeau, M.O.; Oberstedt, S.; Bryś, T.; Gamboni, T.; Geerts, W.; Hambsch, F. J.; Vidali, M.

doi:10.1016/j.nima.2015.04.030

Cited by 8 publications

(7 citation statements)

References 11 publications

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“…No peak can be distinguished in the spectrum. It confirms the results obtained at the LPSC laboratory with the 241 Am source illustrated in Figure 3 and results from [42]. The inhomogeneity of the surface response of the detector, we reported in [10] and illustrated as well in Figure 4B, reveals a variation within a factor 6 [10] depending on the impact position on the detector surface.…”

Section: Poly Chemical Vapor Deposition Performancessupporting

confidence: 90%

Characterization of Diamond and Silicon Carbide Detectors With Fission Fragments

et al. 2021

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Experimental fission studies for reaction physics or nuclear spectroscopy can profit from fast, efficient, and radiation-resistant fission fragment (FF) detectors. When such experiments are performed in-beam in intense thermal neutron beams, additional constraints arise in terms of target-detector interface, beam-induced background, etc. Therefore, wide gap semi-conductor detectors were tested with the aim of developing innovative instrumentation for such applications. The detector characterization was performed with mass- and energy-separated fission fragment beams at the ILL (Institut Laue Langevin) LOHENGRIN spectrometer. Two single crystal diamonds, three polycrystalline and one diamond-on-iridium as well as a silicon carbide detector were characterized as solid state ionization chamber for FF detection. Timing measurements were performed with a 500-µm thick single crystal diamond detector read out by a broadband amplifier. A timing resolution of ∼10.2 ps RMS was obtained for FF with mass A = 98 at 90 MeV kinetic energy. Using a spectroscopic preamplifier developed at INFN-Milano, the energy resolution measured for the same FF was found to be slightly better for a ∼50-µm thin single crystal diamond detector (∼1.4% RMS) than for the 500-µm thick one (∼1.6% RMS), while a value of 3.4% RMS was obtained with the 400-µm silicon carbide detector. The Pulse Height Defect (PHD), which is significant in silicon detectors, was also investigated with the two single crystal diamond detectors. The comparison with results from α and triton measurements enabled us to conclude that PHD leads to ∼50% loss of the initial generated charge carriers for FF. In view of these results, a possible detector configuration and integration for in-beam experiments has been discussed.

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Section: Poly Chemical Vapor Deposition Performancessupporting

confidence: 90%

Characterization of Diamond and Silicon Carbide Detectors With Fission Fragments

et al. 2021

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“…Both, the slopes and the intercepts, increase with atomic number Z. It turned out that these constants depend on Z (or mass number A): g(Z) = 0.02230 (Z 2 /10 3 ) + 0.5682 (12) f(Z) = −0.1425(100/Z) + 0.0825 (13) or g(A) = 0.03486 (A 2 /10 4 ) + 0.5728 ( 14) f(A) = −0.2840 (100/A) + 0.0381 (15) Examples of g and f for Au and Xe can be found in table 6; they were obtained only for one given Si detector and at one given value of the electric field.…”

Section: The Methods Of Moulton Et Almentioning

confidence: 99%

“…The use of DDs as detectors for low-energetic heavy ions is still at its beginning. There are only few publications about PHD in DD [13][14][15]. Sato et al [13,14] have studied the pulseheight reduction effect for low-energy heavy ions Cu, Au, Si, and C at 3 MeV.…”

Section: 33mentioning

confidence: 99%

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Pulse-height defect in single-crystal CVD diamond detectors

et al. 2017

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The pulse-height versus deposited energy response of a single-crystal chemical vapor deposition (scCVD) diamond detector was measured for ions of Ti, Cu, Nb, Ag, Xe, Au, and of fission fragments of 252 Cf at different energies. For the fission fragments, data were also measured at different electric field strengths of the detector. Heavy ions have a significant pulse-height defect in CVD diamond material, which increases with increasing energy of the ions. It also depends on the electrical field strength applied at the detector. The measured pulse-height defects were explained in the framework of recombination models. Calibration methods known from silicon detectors were modified and applied. A comparison with data for the pulse-height defect in silicon detectors was performed.

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“…Ref. [118,119]. This is due to their several promising properties, such as high radiation hardness, an expected faster timing response in comparison with silicon detectors and much easier operation compared to the MCP-based timing detectors.…”

Section: Page 10 Of 77 Author Submitted Manuscript -Ropp-100800r2mentioning

confidence: 99%

Nuclear fission: a review of experimental advances and phenomenology

2017

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In the last two decades, through technological, experimental and theoretical advances, the situation in experimental fission studies has changed dramatically. With the use of advanced production and detection techniques both much more detailed and precise information can now be obtained for the traditional regions of fission research and, crucially, new regions of nuclei have become routinely accessible for fission studies. This work first of all reviews the recent developments in experimental fission techniques, in particular the resurgence of transfer-induced fission reactions with light and heavy ions, the emerging use of inverse-kinematic approaches, both at Coulomb and relativistic energies, and of fission studies with radioactive beams. The emphasis on the fission-fragment mass and charge distributions will be made in this work, though some of the other fission observables, such as prompt neutron and γ-ray emission will also be reviewed. A particular attention will be given to the low-energy fission in the so far scarcely explored nuclei in the very neutron-deficient lead region. They recently became the focus for several complementary experimental studies, such as β-delayed fission with radioactive beams at ISOLDE(CERN), Coulex-induced fission of relativistic secondary beams at FRS(GSI), and several prompt fusion-fission studies. The synergy of these approaches allows a unique insight in the new region of asymmetric fission around [Formula: see text]Hg, recently discovered at ISOLDE. Recent extensive theoretical efforts in this region will also be outlined. The unprecedented high-quality data for fission fragments, completely identified in Z and A, by means of reactions in inverse kinematics at FRS(GSI) and VAMOS(GANIL) will be also reviewed. These experiments explored an extended range of mercury-to-californium elements, spanning from the neutron-deficient to neutron-rich nuclides, and covering both asymmetric, symmetric and transitional fission regions. Some aspects of heavy-ion induced fusion-fission and quasifission reactions will be also discussed, which reveal their dynamical features, such as the fission time scale. The crucial role of the multi-chance fission, probed by means of multinucleon-transfer induced fission reactions, will be highlighted. The review will conclude with the discussion of the new experimental fission facilities which are presently being brought into operation, along with promising 'next-generation' fission approaches, which might become available within the next decade.

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First use of single-crystal diamonds as fission-fragment detector

Cited by 8 publications

References 11 publications

Characterization of Diamond and Silicon Carbide Detectors With Fission Fragments

Characterization of Diamond and Silicon Carbide Detectors With Fission Fragments

Pulse-height defect in single-crystal CVD diamond detectors

Nuclear fission: a review of experimental advances and phenomenology

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