skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Measurement of the low-energy quenching factor in germanium using an Y 88 / Be photoneutron source

Journal Article · · Physical Review D
 [1];  [1];  [1];  [1];  [2]
  1. Univ. of Chicago, Chicago, IL (United States)
  2. Univ. of Chicago, Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Here, we employ an 88Y/Be photoneutron source to derive the quenching factor for neutron-induced nuclear recoils in germanium, probing recoil energies from a few hundred eVnr to 8.5 keVnr. A comprehensive Monte Carlo simulation of our setup is compared to experimental data employing a Lindhard model with a free electronic energy loss k and an adiabatic correction for sub-keVnr nuclear recoils. The best fit k = 0.179 ± 0.001 obtained using a Monte Carlo Markov chain (MCMC) ensemble sampler is in good agreement with previous measurements, confirming the adequacy of the Lindhard model to describe the stopping of few-keV ions in germanium crystals at a temperature of ~77 K. This value of k corresponds to a quenching factor of 13.7% to 25.3% for nuclear recoil energies between 0.3 and 8.5 keVnr, respectively.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1423260
Alternate ID(s):
OSTI ID: 1336976
Report Number(s):
arXiv:1608.03588; FERMILAB-PUB-16-762-AE; PRVDAQ; 1481014
Journal Information:
Physical Review D, Vol. 94, Issue 12; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

References (36)

Ensemble samplers with affine invariance journal January 2010
Applications of an Y 88 / Be Photoneutron Calibration Source to Dark Matter and Neutrino Experiments journal May 2013
Environmental neutrons as seen by a germanium gamma-ray spectrometer
  • Škoro, G. P.; Aničin, I. V.; Kukoč, A. H.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 316, Issue 2-3 https://doi.org/10.1016/0168-9002(92)90918-T
journal June 1992
Measurement of the response of heat-and-ionization germanium detectors to nuclear recoils
  • Benoit, A.; Bergé, L.; Blümer, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 577, Issue 3 https://doi.org/10.1016/j.nima.2007.04.118
journal July 2007
Calibration of a Ge crystal with nuclear recoils for the development of a dark matter detector journal August 1995
Measurement of ionization and phonon production by nuclear recoils in a 60 g crystal of germanium at 25 mK journal December 1992
CoGeNT: A search for low-mass dark matter using p -type point contact germanium detectors journal July 2013
Results from a Search for Light-Mass Dark Matter with a p -Type Point Contact Germanium Detector journal March 2011
New libraries for simulating neutron scattering in dark matter detector calibrations journal March 2014
Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect journal December 2008
Contribution of the electron–phonon interaction to Lindhard energy partition at low energy in Ge and Si detectors for astroparticle physics applications journal February 2016
Atomic limits in the search for galactic dark matter journal April 2015
General Methods for Monitoring Convergence of Iterative Simulations journal December 1998
Reanalysis of radioisotope measurements of the Be 9 ( γ , n ) Be 8 cross section journal August 2016
MCNPX-PoliMi for nuclear nonproliferation applications
  • Pozzi, S. A.; Clarke, S. D.; Walsh, W. J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 694 https://doi.org/10.1016/j.nima.2012.07.040
journal December 2012
Can grand unification monopoles be detected with plastic scintillators? journal February 1983
Consistent dark matter interpretation for CoGeNT and DAMA/LIBRA journal December 2010
Development of bubble chambers with enhanced stability and sensitivity to low-energy nuclear recoils
  • Bolte, W. J.; Collar, J. I.; Crisler, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 577, Issue 3 https://doi.org/10.1016/j.nima.2007.04.149
journal July 2007
Erratum: Experimental Constraints on a Dark Matter Origin for the DAMA Annual Modulation Effect [Phys. Rev. Lett.PRLTAO0031-9007 101 , 251301 (2008)] journal March 2009
emcee : The MCMC Hammer
  • Foreman-Mackey, Daniel; Hogg, David W.; Lang, Dustin
  • Publications of the Astronomical Society of the Pacific, Vol. 125, Issue 925 https://doi.org/10.1086/670067
journal March 2013
Measurement of the ionization produced by sub-keV silicon nuclear recoils in a CCD dark matter detector journal October 2016
Study on the increase of inactive germanium layer in a high-purity germanium detector after a long time operation applying MCNP code
  • Huy, N. Q.; Binh, D. Q.; An, V. X.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 573, Issue 3 https://doi.org/10.1016/j.nima.2006.12.048
journal April 2007
Digital techniques for real-time pulse shaping in radiation measurements
  • Jordanov, Valentin T.; Knoll, Glenn F.; Huber, Alan C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 353, Issue 1-3 https://doi.org/10.1016/0168-9002(94)91652-7
journal December 1994
Neutron induced background gamma activity in low-level Ge-spectroscopy systems
  • Jovančević, N.; Krmar, M.; Mrda, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 612, Issue 2 https://doi.org/10.1016/j.nima.2009.10.059
journal January 2010
Band-Gap Effects in the Stopping of Ge 7 2 * Atoms in Germanium journal November 1968
Large-mass ultralow noise germanium detectors: performance and applications in neutrino and astroparticle physics journal September 2007
Dark matter search results from the PICO-60 CF 3 I bubble chamber journal March 2016
Measurement of the Energy Loss of Germanium Atoms to Electrons in Germanium at Energies Below 100 keV journal August 1965
Dead-layer thickness effect for gamma spectra measured in an HPGe p-type detector journal June 2011
Characterization and performance of germanium detectors with sub-keV sensitivities for neutrino and dark matter experiments
  • Soma, A. K.; Singh, M. K.; Singh, L.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 836 https://doi.org/10.1016/j.nima.2016.08.044
journal November 2016
Neutron inelastic scattering processes as a background for double-β decay experiments journal May 2008
Ionization efficiency study for low energy nuclear recoils in germanium journal August 2013
Observation of electronic excitation by extremely slow protons with applications to the detection of supermassive charged particles journal July 1987
Stopping of 1- to 1.8-keV Ge 73 Atoms in Germanium journal July 1971
The Capture of Negative Mesotrons in Matter journal September 1947
Energy lost to ionization by 254-eV Ge 73 atoms stopping in Ge journal April 1975

Cited By (5)

Direct detection of WIMP dark matter: concepts and status journal August 2019
Neutron-induced background in the CONUS experiment journal August 2019
Direct Detection of WIMP Dark Matter: Concepts and Status text January 2019
Neutron-induced background in the CONUS experiment text January 2019
The Migdal Effect and Photon Bremsstrahlung in effective field theories of dark matter direct detection and coherent elastic neutrino-nucleus scattering text January 2019