Staff information
Raymond Bunker III
Physicist
Pacific Northwest National Laboratory
PO Box 999
MSIN: J5-20
Richland, WA 99352
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PNNL Publications
2025
- Albakry M.F., I. Alkhatib, D. Alonso, D.W. Amaral, J. Anczarski, T. Aralis, and T. Aramaki, et al. 2025. "Light Dark Matter Constraints from SuperCDMS HVeV Detectors Operated Underground with an Anticoincidence Event Selection." Physical Review D 111, no. 1:Art. No. 012006. PNNL-SA-200291. doi:10.1103/PhysRevD.111.012006
2024
- Anthony-Petersen R., A. Biekert, R.A. Bunker, C.L. Chang, Y. Chang, L. Chaplinsky, and E. Fascione, et al. 2024. "A Stress-Induced Source of Phonon Bursts and Quasiparticle Poisoning." Nature Communications 15, no. 1:Art. No. 6444. PNNL-SA-176263. doi:10.1038/s41467-024-50173-8
- Fowler J.W., P. Szypryt, R.A. Bunker, E.R. Edwards, I. Fogarty Florang, J. Gao, and A. Giachero, et al. 2024. "Spectroscopic measurements and models of energy deposition in the substrate of quantum circuits by natural ionizing radiation." PRX Quantum 5, no. 4:Art No. 40323. PNNL-SA-197013. doi:10.1103/PRXQuantum.5.040323
- Loer B.M., P. Harrington, B.C. Archambault, E.S. Fuller, B.D. Pierson, I.J. Arnquist, and K. Harouaka, et al. 2024. "Abatement of Ionizing Radiation for Superconducting Quantum Devices." Journal of Instrumentation 19, no. 9:Art. No. P09001. PNNL-SA-195572. doi:10.1088/1748-0221/19/09/P09001
2023
- Albakry M.F., I. Alkhatib, D. Alonso, D.W. Amaral, T. Aralis, T. Aramaki, and I.J. Arnquist, et al. 2023. "First measurement of the nuclear-recoil ionization yield in silicon at 100 eV." Physical Review Letters 131, no. 9:Art. No. 091801. PNNL-SA-186011. doi:10.1103/PhysRevLett.131.091801
- Albakry M.F., I. Alkhatib, D. Alonso, D.W. Amaral, T. Aralis, T. Aramaki, and I.J. Arnquist, et al. 2023. "Search for Low-mass Dark Matter via Bremsstrahlung Radiation and the Migdal Effect in SuperCDMS." Physical Review D 107, no. 11:112013. PNNL-SA-172121. doi:10.1103/PhysRevD.107.112013
- Arnquist I.J., R.A. Bunker, Z. Dohnalek, R. Ma, and N.E. Uhnak. 2023. "Exploration of Methods to Remove Implanted 210Pb and 210Po Contamination from Silicon Surfaces." Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1048. PNNL-SA-174178. doi:10.1016/j.nima.2022.168008
- Kelsey M.H., R. Agnese, Y. Alam, I. Ataee Langroudy, E. Azadbakht, D. Brandt, and R.A. Bunker, et al. 2023. "G4CMP: Condensed Matter Physics Simulation Using the Geant4 Toolkit." Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 1055. PNNL-SA-182030. doi:10.1016/j.nima.2023.168473
2022
- Albakry M.F., I. Alkhatib, D.W. Amaral, T. Aralis, T. Aramaki, I.J. Arnquist, and I. Ataee Langroudy, et al. 2022. "Investigating the sources of low-energy events in a SuperCDMS-HVeV detector." Physical Review D 105, no. 11:Art. No. 112006. PNNL-SA-172447. doi:10.1103/PhysRevD.105.112006
- Wilson J.S., H. Meyer zu Theenhausen, B. Von Krosigk, E. Azadbakht, R.A. Bunker, J. Hall, and S. Hansen, et al. 2022. "The level-1 trigger for the SuperCDMS experiment at SNOLAB." Journal of Instrumentation 17, no. 7:Art. No. P07010. PNNL-SA-171054. doi:10.1088/1748-0221/17/07/P07010
2021
- Alexander T.R., R.A. Bunker, E.K. Mace, K.S. Thommasson, C.M. Johnson, and J.D. Lowrey. 2021. UNESE Argon-39 Measurement Techniques: Developing an above-ground Argon-39 Measurement Capability. PNNL-30869. Richland, WA: Pacific Northwest National Laboratory. UNESE Argon-39 Measurement Techniques: Developing an above-ground Argon-39 Measurement Capability
- Alkhatib I., D.W. Amaral, T. Aralis, T. Aramaki, I.J. Arnquist, I. Ataee Langroudy, and E. Azadbakht, et al. 2021. "Constraints on Lightly Ionizing Particles from CDMSlite." Physical Review Letters 127, no. 8:081802. PNNL-SA-157645. doi:10.1103/PhysRevLett.127.081802
- Alkhatib I., D.W. Amaral, T. Aralis, T. Aramaki, I.J. Arnquist, I. Ataee Langroudy, and E. Azadbakht, et al. 2021. "Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated Above Ground." Physical Review Letters 127, no. 6:061801. PNNL-SA-155137. doi:10.1103/PhysRevLett.127.061801
- Balogh L., C. Beaufort, R.A. Bunker, A. Brossard, J. Caron, M. Chapellier, and E.C. Corcoran, et al. 2021. "Copper Electroplating for Background Suppression in the NEWS-G Experiment." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 988. PNNL-SA-154978. doi:10.1016/j.nima.2020.164844
- Lu Z., N.P. Smith, M.P. Prange, R.A. Bunker, J.L. Orrell, and A.M. Chaka. 2021. "Effect of interfacial structures on phonon transport across atomically precise Si/Al heterojunctions." Physical Review Materials 5, no. 8:086002. PNNL-SA-163751. doi:10.1103/PhysRevMaterials.5.086002
2020
- Aalseth C.E., S. Abdelhakim, F. Acerbi, P. Agnes, R. Ajaj, I. Albuquerque, and T.R. Alexander, et al. 2020. "Design and construction of a new detector to measure ultra-low radioactive-isotope contamination of argon." Journal of Instrumentation 15, no. 2:Article No. P02024. PNNL-SA-157079. doi:10.1088/1748-0221/15/02/P02024
- Amaral D.W., T. Aralis, T. Aramaki, I.J. Arnquist, E. Azadbakht, S. Banik, and D. Barker, et al. 2020. "Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector." Physical Review D 102, no. 9:091101(R). PNNL-SA-153681. doi:10.1103/PhysRevD.102.091101
- Aralis T., T. Aramaki, I.J. Arnquist, E. Azadbakht, W. Baker, S. Banik, and D. Barker, et al. 2020. "Constraints on dark photons and axionlike particles from the SuperCDMS Soudan experiment." Physical Review D 101, no. 5:Article No. 052008. PNNL-SA-150072. doi:10.1103/PhysRevD.101.052008
- Bliss M., and R.A. Bunker. 2020. Radon Photoionization: Project Technical Report. PNNL-29252. Richland, WA: Pacific Northwest National Laboratory. Radon Photoionization: Project Technical Report
- Bunker R.A., T. Aramaki, I.J. Arnquist, R. Calkins, J. Cooley, E.W. Hoppe, and J.L. Orrell, et al. 2020. "Evaluation and mitigation of trace 210Pb contamination on copper surfaces." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 967. PNNL-SA-151382. doi:10.1016/j.nima.2020.163870
- Saldanha R.N., R. Thomas, H. Tsang, A. Chavarria, R.A. Bunker, J.L. Burnett, and S.R. Elliott, et al. 2020. "Cosmogenic activation of silicon." Physical Review D 102, no. 10:102006. PNNL-SA-154968. doi:10.1103/PhysRevD.102.102006
2019
- Agnese R., T. Aralis, T. Aramaki, I.J. Arnquist, E. Azadbakht, W. Baker, and D. Barker, et al. 2019. "Production Rate Measurement of Tritium and Other Cosmogenic Isotopes in Germanium with CDMSlite." Astroparticle Physics 104. PNNL-SA-135963. doi:10.1016/j.astropartphys.2018.08.006
- Agnese R., T. Aralis, T. Aramaki, I.J. Arnquist, E. Azadbakht, W. Baker, and S. Banik, et al. 2019. "Search for Low-Mass Dark Matter with CDMSlite Using a Profile Likelihood Fit." Physical Review D 99, no. 6:Article Number 062001. PNNL-SA-139404. doi:10.1103/PhysRevD.99.062001
2018
- Aalseth C.E., F. Acerbi, P. Agnes, I. Albuquerque, T.R. Alexander, A. Alici, and A. Alton, et al. 2018. "DarkSide-20k: A 20 tonne two-phase LAr TPC for direct dark matter detection at LNGS." European Physical Journal Plus 133, no. 3:Article No. 131. PNNL-SA-134133. doi:10.1140/epjp/i2018-11973-4
- Agnese R., A.J. Anderson, T. Aralis, T. Aramaki, I.J. Arnquist, W. Baker, and D. Balakishiyeva, et al. 2018. "Low-mass Dark Matter Search with CDMSlite." Physical Review D 97, no. 2:022002. PNNL-SA-127776. doi:10.1103/PhysRevD.97.022002
- Agnese R., A.J. Anderson, T. Aramaki, W. Baker, D. Balakishiyeva, S. Banik, and D. Barker, et al. 2018. "Nuclear-recoil energy scale in CDMS II silicon dark-matter detectors." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 905. PNNL-SA-133385. doi:10.1016/j.nima.2018.07.028
- Agnese R., T. Aralis, T. Aramaki, I.J. Arnquist, E. Azadbakht, W. Baker, and S. Banik, et al. 2018. "First Dark Matter Constraints from SuperCDMS Single-Charge Sensitive Detector." Physical Review Letters 121, no. 5:051301. PNNL-SA-134526. doi:10.1103/PhysRevLett.121.051301
- Agnese R., T. Aramaki, I.J. Arnquist, W. Baker, D. Balakishiyeva, S. Banik, and D. Barker, et al. 2018. "Results from the Super Cryogenic Dark Matter Search Experiment at Soudan." Physical Review Letters 120, no. 6:Article No. 061802. PNNL-SA-129065. doi:10.1103/PhysRevLett.120.061802
- Aralis T., R. Agnese, T. Aramaki, I.J. Arnquist, E. Azadbakht, W. Baker, and S. Banik, et al. 2018. "Energy Loss Due to Defect Formation from 206Pb Recoils in SuperCDMS Germanium Detectors." Applied Physics Letters 113, no. 9:092101. PNNL-SA-135936. doi:10.1063/1.5041457
- Orrell J.L., I.J. Arnquist, M. Bliss, R.A. Bunker, and Z.S. Finch. 2018. "Naturally occurring 32Si and low-background silicon dark matter detectors." Astroparticle Physics 99. PNNL-SA-127795. doi:10.1016/j.astropartphys.2018.02.005
- Platt M., R. Mahapatra, R.A. Bunker, and J.L. Orrell. 2018. SuperCDMS Underground Detector Fabrication Facility. PNNL-27319. Richland, WA: Pacific Northwest National Laboratory. SuperCDMS Underground Detector Fabrication Facility">doi:10.2172/1424835.SuperCDMS Underground Detector Fabrication Facility
- Stein M., D.A. Bauer, R.A. Bunker, R. Calkins, J. Cooley, B.M. Loer, and S. Scorza. 2018. "Radon Daughter Plate-out Measurements at SNOLAB for Polyethylene and Copper." Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 880. PNNL-SA-129611. doi:10.1016/j.nima.2017.10.054
2017
- Agnese R., A. Anderson, T. Aramaki, M. Asai, W. Baker, D. Balakishiyeva, and D. Barker, et al. 2017. "New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS Low Ionization Threshold Experiment." Physical Review Letters 116, no. 7:Article No. 071301. PNNL-SA-126032. doi:10.1103/PhysRevLett.116.071301
- Agnese R., A.J. Anderson, T. Aramaki, I.J. Arnquist, W. Baker, D. Barker, and R. Basu Thakur, et al. 2017. "Projected Sensitivity of the SuperCDMS SNOLAB experiment." Physical Review D 95, no. 8:Article No. 082002. PNNL-SA-128797. doi:10.1103/PhysRevD.95.082002
- Akerib D.S., C.W. Akerlof, D.Y. Akimov, S.K. Alsum, H.M. Araujo, I.J. Arnquist, and M. Arthurs, et al. 2017. "Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches." Astroparticle Physics 96. PNNL-SA-129064. doi:10.1016/j.astropartphys.2017.09.002
2016
- Agnese R., A. Anderson, T. Aramaki, M. Asai, W. Baker, D. Balakishiyeva, and D. Barker, et al. 2016. "New Results from the Search for Low-Mass Weakly Interacting Massive Particles with the CDMS low ionization Threshold Experiment." Physical Review Letters 116, no. 7:Article No. 071301. PNNL-SA-126625. doi:10.1103/PhysRevLett.116.071301