Considerations, Measurements and Logistics Associated with Low-Energy Cyclotron Decommissioning

被引:6
|
作者
Sunderland, J. J. [1 ]
Erdahl, C. E. [1 ]
Bender, B. R. [1 ]
Sensoy, L. [2 ]
Watkins, G. L. [1 ]
机构
[1] Univ Iowa, Dept Radiol, Iowa City, IA 52242 USA
[2] Univ Iowa, Dept Phys, Iowa City, IA 52242 USA
关键词
cyclotron; decommissioning; neutron activation; nuclear spectroscopy;
D O I
10.1063/1.4773931
中图分类号
O59 [应用物理学];
学科分类号
摘要
The University of Iowa's 20-year-old 17 MeV Scanditronix cyclotron underwent decommissioning in the summer of 2011. To satisfy local, state and federal regulations defining removal, transportation and long-term safe and environmentally secure disposal of the 22 ton activated cyclotron, a series of nuclear spectroscopic measurements were performed to characterize the nature and extent of proton and neutron activation of the 22-ton cyclotron, its associated targets, and the concrete wall that was demolished to remove the old cyclotron. Neutron activation of the concrete wall was minimal and below exempt concentrations resulting in standard landfill disposal. The cyclotron assessment revealed the expected array of short and medium-lived radionuclides. Subsequent calculations suggest that meaningful levels residual activity will have decayed virtually to background after 15 years, with the total residual activity of the entire cyclotron dropping below 37 MBq (1 mCi).
引用
收藏
页码:16 / 20
页数:5
相关论文
共 50 条
  • [1] A LOW-ENERGY CYCLOTRON FOR RADIOCARBON DATING
    WELCH, JJ
    BERTSCHE, KJ
    FRIEDMAN, PG
    MORRIS, DE
    MULLER, RA
    TANS, PP
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 18 (02): : 202 - 214
  • [2] Low Energy Measurements in Low-Energy μSR
    Suter, Andreas
    Martins, Maria Mendes
    Ni, Xiaojie
    Prokscha, Thomas
    Salman, Zaher
    [J]. 15TH INTERNATIONAL CONFERENCE ON MUON SPIN ROTATION, RELAXATION AND RESONANCE, 2023, 2462
  • [3] LOW-ENERGY MESON BEAM FROM CYCLOTRON
    KOPPEL, D
    BINGHAM, R
    BOOTH, ET
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1957, 28 (08): : 645 - 646
  • [4] ION MOTION IN A SMALL LOW-ENERGY CYCLOTRON
    BERTSCHE, KJ
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 301 (02): : 171 - 181
  • [5] RADIOCARBON DETECTION WITH A SMALL LOW-ENERGY CYCLOTRON
    BERTSCHE, KJ
    KARADI, CA
    MULLER, RA
    [J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 301 (02): : 358 - 371
  • [6] Low-energy neutrino measurements
    DAVIDE D’ANGELO
    [J]. Pramana, 2012, 79 : 757 - 780
  • [7] Low-energy neutrino measurements
    D'Angelo, Davide
    [J]. PRAMANA-JOURNAL OF PHYSICS, 2012, 79 (04): : 757 - 780
  • [8] Production of 76Br by a low-energy cyclotron
    Tolmachev, V
    Lovqvist, A
    Einarsson, L
    Schultz, J
    Lundqvist, H
    [J]. APPLIED RADIATION AND ISOTOPES, 1998, 49 (12) : 1537 - 1540
  • [9] Production of neptunium and plutonium tracers with a low-energy cyclotron
    Aaltonen, J
    Gromova, EA
    Yakovlev, VA
    Heselius, SJ
    [J]. RADIOCHEMISTRY, 1996, 38 (04) : 285 - 289
  • [10] MEASUREMENTS AND INTERPRETATION OF LOW-ENERGY PHOTOELECTRONS
    SHEA, MF
    SHARP, RD
    MCELROY, MB
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH, 1968, 73 (13): : 4199 - +