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Title: Toward single electron resolution phonon mediated ionization detectors

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1416600
Grant/Contract Number:
SC0004022
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 855; Journal Issue: C; Related Information: CHORUS Timestamp: 2018-01-11 06:04:22; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Mirabolfathi, Nader, Harris, H. Rusty, Mahapatra, Rupak, Sundqvist, Kyle, Jastram, Andrew, Serfass, Bruno, Faiez, Dana, and Sadoulet, Bernard. Toward single electron resolution phonon mediated ionization detectors. Netherlands: N. p., 2017. Web. doi:10.1016/j.nima.2017.02.032.
Mirabolfathi, Nader, Harris, H. Rusty, Mahapatra, Rupak, Sundqvist, Kyle, Jastram, Andrew, Serfass, Bruno, Faiez, Dana, & Sadoulet, Bernard. Toward single electron resolution phonon mediated ionization detectors. Netherlands. doi:10.1016/j.nima.2017.02.032.
Mirabolfathi, Nader, Harris, H. Rusty, Mahapatra, Rupak, Sundqvist, Kyle, Jastram, Andrew, Serfass, Bruno, Faiez, Dana, and Sadoulet, Bernard. Mon . "Toward single electron resolution phonon mediated ionization detectors". Netherlands. doi:10.1016/j.nima.2017.02.032.
@article{osti_1416600,
title = {Toward single electron resolution phonon mediated ionization detectors},
author = {Mirabolfathi, Nader and Harris, H. Rusty and Mahapatra, Rupak and Sundqvist, Kyle and Jastram, Andrew and Serfass, Bruno and Faiez, Dana and Sadoulet, Bernard},
abstractNote = {},
doi = {10.1016/j.nima.2017.02.032},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 855,
place = {Netherlands},
year = {Mon May 01 00:00:00 EDT 2017},
month = {Mon May 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.nima.2017.02.032

Citation Metrics:
Cited by: 2works
Citation information provided by
Web of Science

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  • The development of sensitive cryogenic light detectors is of primary interest for bolometric experiments searching for rare events like dark matter interactions or neutrino-less double beta decay. Thanks to their good energy resolution and the natural multiplexed read-out, Kinetic Inductance Detectors (KIDs) are particularly suitable for this purpose. To efficiently couple KIDs-based light detectors to the large crystals used by the most advanced bolometric detectors, active surfaces of several cm{sup 2} are needed. For this reason, we are developing phonon-mediated detectors. In this paper, we present the results obtained with a prototype consisting of four 40 nm thick aluminum resonators patternedmore » on a 2 × 2 cm{sup 2} silicon chip, and calibrated with optical pulses and X-rays. The detector features a noise resolution σ{sub E} = 154 ± 7 eV and an (18 ± 2)% efficiency.« less
  • We demonstrate position and energy-resolved phonon-mediated detection of particle interactions in a silicon substrate instrumented with an array of microwave kinetic inductance detectors (MKIDs). The relative magnitude and delay of the signal received in each sensor allow the location of the interaction to be determined with < or approx. 1mm resolution at 30 keV. Using this position information, variations in the detector response with position can be removed, and an energy resolution of {sigma}{sub E} = 0.55 keV at 30 keV was measured. Since MKIDs can be fabricated from a single deposited film and are naturally multiplexed in the frequencymore » domain, this technology can be extended to provide highly pixelized athermal phonon sensors for {approx}1 kg scale detector elements. Such high-resolution, massive particle detectors would be applicable to rare-event searches such as the direct detection of dark matter, neutrinoless double-beta decay, or coherent neutrino-nucleus scattering.« less
  • The authors have identified an important source of line broadening in transition edge sensors used as optical photon detectors. It arises through the loss of high energy phonons into the substrate during the initial photon energy downconversion stage. Because of the relatively small number of phonons involved, the loss rate is subjected to large fluctuations due to the statistical nature of the energy exchange processes. They show that the resulting noise may represent a significant limitation to the resolving power of current detectors.
  • A new method to study the origin of the dead-layer in ionization-phonon detectors was developed wherein the ionization is measured via a 25 micron gap between the collection electrodes and germanium absorber. Phonon signals are measured with small tungsten thermometers (Tc{approx}90 mK) varnished to the Ge substrates. The Ge samples were studied using collimated {sup 241}Am sources. With this geometry, different contributions to the 'dead-layer' effect can be studied independently: Carrier back diffusion, trapping on surface states, Schottky barrier lowering, etc.
  • This review discusses detector physics and Monte Carlo techniques for cryogenic, radiation detectors that utilize combined phonon and ionization readout. A general review of cryogenic phonon and charge transport is provided along with specific details of the Cryogenic Dark Matter Search detector instrumentation. In particular, this review covers quasidiffusive phonon transport, which includes phonon focusing, anharmonic decay, and isotope scattering. The interaction of phonons in the detector surface is discussed along with the downconversion of phonons in superconducting films. The charge transport physics include a mass tensor which results from the crystal band structure and is modeled with a Herring-Vogtmore » transformation. Charge scattering processes involve the creation of Neganov-Luke phonons. Transition-edge-sensor (TES) simulations include a full electric circuit description and all thermal processes including Joule heating, cooling to the substrate, and thermal diffusion within the TES, the latter of which is necessary to model normal-superconducting phase separation. Relevant numerical constants are provided for these physical processes in germanium, silicon, aluminum, and tungsten. Random number sampling methods including inverse cumulative distribution function (CDF) and rejection techniques are reviewed. To improve the efficiency of charge transport modeling, an additional second order inverse CDF method is developed here along with an efficient barycentric coordinate sampling method of electric fields. Results are provided in a manner that is convenient for use in Monte Carlo and references are provided for validation of these models.« less