Anti-Compton system for environmental radioactivity studies at Kuwait University

Nasser S. Demir, Tiruvatchi Nageswaran, Tareq Alrefae

Abstract


The Center for Research in Environmental Radiation (CRER) at Kuwait University has installed an anti-Compton system of gamma spectrometry.The system was mainly intended for the detection and measurement of natural occurring radioactive matter (NORM). In this work, the ability of this system to enhance photopeak visibility by suppressing Compton counts
is demonstrated. Measurements of the suppression ratio (SR) were from 12 to 45 for the 60Co spectrum.In addition, the suppression factor (SF) was measured to be 6 for the 60Co photopeak of 1173 keV. The performance results similar to previous anti-Compton systems research referenced. Plans to improve and optimize our system’s performance were set for future work.


Keywords


: Compton Suppression; Gamma Spectrometry; NORM; Radioactivity

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References


Aarts H.J., Van der Poel, C.J., Scherpenzeel D.E.,

Arciszewski, H.F. &Engelbertink, G.A. (1980). A

Compton-suppression spectrometer for γ-γ coincidence

measurements: Large solid angle and excellent suppression.

Nuclear Instruments and Methods, 177(2 -3): 417- 25.

Baburajan, A., Rao, D.D., Sudheendran, V., Ravi, P.M.

& Tripathi, R.M. (2014). Performance evaluation of

Compton suppression gamma spectrometer for low level

environmental measurements. Radiation Protection and

Environment, 37(1): 38- 41.

Beetz, R., Posthumus, W.L., De Boer, F.W., Maarleveld,

J.L., Van Der Schaaf, A. & Konijn, J. (1977). An in-beam

Ge(Li)-NaI(Tl) Compton suppression spectrometer. Nuclear

Instruments and Methods, 145(2): 353- 7.

Cooper, J.A. & Perkins, R.W. A versatile Ge(Li)-NaI(Tl)

coincidence-anticoincidence gamma-ray spectrometer for

environmental and biological problems. Nuclear Instruments

and Methods, 99(1):125- 46; 1972.

De Voigt, M.J., Bacelar, J.C., Micek, S.L., Schotanus,

P., Verhoef, B.A., Wintraecken, Y.J. & Vermeulen, P.

(1995). A novel compact Ge-BGO Compton-suppression

spectrometer. Nuclear Instruments and Methods in Physics

Research Section A: Accelerators, Spectrometers, Detectors

and Associated Equipment, 356(2- 3): 362- 75.

Fairstein, E. & Wagner, S. IEEE Standard Test

Procedures for Germanium Gamma-Ray Detectors.

(1997). IEEE Standard. 325- 1996.

Fukuda, K., Ohkuma. J., Asano, T. & Satoh, Y. (1996).

Performance of a Ge-BGO Compton- suppression

spectrometer and its application to photon activation

analysis. Nuclear Instruments and Methods in Physics

Research Section B: Beam Interactions with Materials and

Atoms, 114(3- 4): 379 -386.

IEEE Standard Test Procedures for Germanium

Gamma-Ray Detectors. (1997). IEEE Standard. 325- 1996.

Knoll, G.F. (2010). Radiation detection and measurement.

John Wiley, Hoboken, NJ. pp. 405- 475

Lin, X., Lierse, C. & Wahl, W. (1997). An innovative

Compton suppression spectrometer and its capability of

evaluation in multi-elemental neutron activation analysis.

Journal of Radioanalytical and Nuclear Chemistry,

(2):169- 178.

Massé, D., Adam, A. & Laurec, J. (1991). A Ge-NaI(Tl)

spectrometer with Compton suppression and gamma

coincidence counting. Application to 189Ir and 101Rh

activity measurements. Nuclear Instruments and Methods

in Physics Research Section A: Accelerators, Spectrometers,

Detectors and Associated Equipment, 309(1- 2): 227- 235.

Mauerhofer, E., Tharun, U., Denschlag, H.O., Schmidt, R.

& Kratz, J.V. (1996). A Compton suppression spectrometer

for neutron activation analysis. Nuclear Instruments and

Methods in Physics Research Section A: Accelerators,

Spectrometers, Detectors and Associated Equipment,

(3): 465- 471.

Moszyński, M., Bjerregard, J.H., Gaardhøje, J.J.,

Herskind, B., Knudsen, P., & Sletten, G. (1982).

Limitation of the Compton suppression in Ge-BGO

Compton suppression spectrometers. Nuclear Instruments

and Methods in Physics Research Section A: Accelerators,

Spectrometers, Detectors and Associated Equipment,

(1): 73- 82.

Peerani, P., Carbol, P., Hrnecek, E. & Betti, M. (2002).

Assessment of a Compton-event suppression γ-spectrometer

for the detection of fission products at trace levels. Nuclear

Instruments and Methods in Physics Research Section A:

Accelerators, Spectrometers, Detectors and Associated

Equipment, 482(1- 2): 42- 50.


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