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

This content will become publicly available on April 20, 2020

Title: High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe

Abstract

A Maia detector array has been utilized and installed on the CSIRO-MARC Nuclear Microprobe. Maia uses an annular array of 384 silicon detectors to provide a solid-angle of 1.3 sr to improve the collection of X-rays induced by Particle Induced X-ray Emission (PIXE) using a micron focussed MeV proton beam. It features event-by-event data acquisition with dead-time correction and pileup rejection and a total count-rate capacity above 10 M/s, versatile stage and beam scanning modes (coupled to the DAQ-36 system described previously) to cater for a variety of sample configuration and experimental needs, precise measurement of transit time and integration of beam fluence per pixel, and spectral deconvolution of event data in real-time using the Dynamic Analysis method to provide element images during data collection. In this work we demonstrate the system on thin sections made from geological samples extracted from active seafloor hydrothermal vents in the PACMANUS hydrothermal field in Papua New Guinea.

Authors:
 [1];  [2];  [2];  [2];  [3];  [2];  [3];  [2];  [2];  [4];  [4];  [2];  [2];  [2];  [2];  [4]
  1. Commonwealth Scientific and Industrial Research Organization (CSIRO), Clayton, VIC (Australia); Univ. of Melbourne (Australia)
  2. Commonwealth Scientific and Industrial Research Organization (CSIRO), Clayton, VIC (Australia)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Univ. of Melbourne (Australia)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1547290
Report Number(s):
BNL-211928-2019-JAAM
Journal ID: ISSN 0168-583X
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Additional Journal Information:
Journal Volume: 449; Journal Issue: C; Journal ID: ISSN 0168-583X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; PIXE; Nuclear Microprobe; NMP; Maia detector; Data acquisition; Element imaging; Dynamic Analysis; GeoPIXE; Hydrothermal vents; PACMANUS; Volcanogenic massive sulfide deposits; VMS deposits

Citation Formats

Laird, J. S., Ryan, C. G., Kirkham, R., Hu, S., Siddons, D. P., Dunn, P. A., Kuczewski, A., Parry, D., Jensen, M., Rudzik, F., Szymanski, R., Dodanwela, R., Hogan, S., Moorhead, G., Davey, P., and Jamieson, D. N. High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe. United States: N. p., 2019. Web. doi:10.1016/j.nimb.2019.04.031.
Laird, J. S., Ryan, C. G., Kirkham, R., Hu, S., Siddons, D. P., Dunn, P. A., Kuczewski, A., Parry, D., Jensen, M., Rudzik, F., Szymanski, R., Dodanwela, R., Hogan, S., Moorhead, G., Davey, P., & Jamieson, D. N. High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe. United States. doi:10.1016/j.nimb.2019.04.031.
Laird, J. S., Ryan, C. G., Kirkham, R., Hu, S., Siddons, D. P., Dunn, P. A., Kuczewski, A., Parry, D., Jensen, M., Rudzik, F., Szymanski, R., Dodanwela, R., Hogan, S., Moorhead, G., Davey, P., and Jamieson, D. N. Sat . "High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe". United States. doi:10.1016/j.nimb.2019.04.031.
@article{osti_1547290,
title = {High definition large area mapping of geological samples using a Maia detector array in the Nuclear Microprobe},
author = {Laird, J. S. and Ryan, C. G. and Kirkham, R. and Hu, S. and Siddons, D. P. and Dunn, P. A. and Kuczewski, A. and Parry, D. and Jensen, M. and Rudzik, F. and Szymanski, R. and Dodanwela, R. and Hogan, S. and Moorhead, G. and Davey, P. and Jamieson, D. N.},
abstractNote = {A Maia detector array has been utilized and installed on the CSIRO-MARC Nuclear Microprobe. Maia uses an annular array of 384 silicon detectors to provide a solid-angle of 1.3 sr to improve the collection of X-rays induced by Particle Induced X-ray Emission (PIXE) using a micron focussed MeV proton beam. It features event-by-event data acquisition with dead-time correction and pileup rejection and a total count-rate capacity above 10 M/s, versatile stage and beam scanning modes (coupled to the DAQ-36 system described previously) to cater for a variety of sample configuration and experimental needs, precise measurement of transit time and integration of beam fluence per pixel, and spectral deconvolution of event data in real-time using the Dynamic Analysis method to provide element images during data collection. In this work we demonstrate the system on thin sections made from geological samples extracted from active seafloor hydrothermal vents in the PACMANUS hydrothermal field in Papua New Guinea.},
doi = {10.1016/j.nimb.2019.04.031},
journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
number = C,
volume = 449,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on April 20, 2020
Publisher's Version of Record

Save / Share: