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Pixie-4 Express
Software Manual
- Coincident Energy Plots -
Version 4.21
May 18, 2016
Hardware Revision: B
Software Revision: 4.21
XIA LLC
31057 Genstar Rd
Hayward, CA 94544 USA
Email: support@xia.com
Tel: (510) 401-5760; Fax: (510) 401-5761
http://www.xia.com/
Information furnished by XIA LLC is believed to be accurate and reliable. However, no responsibility is assumed by
XIA for its use, or for any infringements of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of XIA. XIA reserves the right to
change hardware or software specifications at any time without notice.
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Summary of Contents for XIA Pixie-4 Express
- Page 1 Information furnished by XIA LLC is believed to be accurate and reliable. However, no responsibility is assumed by XIA for its use, or for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of XIA.
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Page 2: Table Of Contents
Table of Contents Safety ................................3 Warranty Statement ............................4 Manual Conventions ............................. 5 Introduction ............................6 Pixie-4 Express Coincident Energy Plotting Functions ............6 System Requirements ........................ 6 Software Overview ........................6 Support ............................6 Principle of Operation ....................... 7 Installation ............................. -
Page 3: Safety
Pixie-4 Express User Manual Version 4.21 Safety Please take a moment to review these safety precautions. They are provided both for your protection and to prevent damage to the Pixie module and connected equipment. This safety information applies to all operators and service personnel. -
Page 4: Warranty Statement
In order to obtain service under this warranty, Customer must notify XIA LLC of the defect before the expiration of the warranty period and make suitable arrangements for the performance of the service. -
Page 5: Manual Conventions
Pixie-4 Express User Manual Version 4.21 Manual Conventions The following conventions are used throughout this manual Convention Description Example » The » symbol leads you The sequence through nested menu items File»Page Setup»Options directs you to pull and dialog box options. -
Page 6: Introduction
Version 4.21 1 Introduction The Pixie-4 Express is designed, among other things, to acquire list mode data from coincident events in multiple radiation detectors. The methods to set up and acquire such coincident data, and basic functions to view results, are described in the Pixie-4 Express User’s Manual. -
Page 7: Principle Of Operation
Pixie-4 Express User Manual Version 4.21 1.5 Principle of Operation When trying to measure time and energy of pulses from different detector channels that are “related” and belong to a common multi-channel event, a fundamental problem is to decide what is “related”. A seemingly simple approach might be to consider all pulses arriving within a short coincidence window (CW) as a group and consider them related. -
Page 8: Installation
[Start Up System] or [Offline Analysis] to IXIE TART initialize the software. Open the 2D S display by selecting top menu XIA » 2D MCA PECTRUM Open the T panel by selecting top menu XIA » Timing IFFERENCE... -
Page 9: Data Acquisition Settings
Pixie-4 Express User Manual Version 4.21 3 Data acquisition settings For the coincidence energy functions, the data must be acquired in run type 0x402. Please see section 4.2.1 of the user manual for details. In particular, please remember that the... -
Page 10: Offline Analysis
Pixie-4 Express User Manual Version 4.21 4 Offline Analysis The 2D display is shown in Figure 4-1. Controls in the upper section of the SPECTRUM display are used to select a file and read data from it, to set the display parameters, to open further plots, and to analyze and export the data. -
Page 11: Histogramming Parameters
Pixie-4 Express User Manual Version 4.21 4.2 Histogramming Parameters The data loaded from the file is a list of energies and time stamps. To process this list into a histogram, first specify the following parameters 1. Define the channels to plot (0..3) and the window (in ns) for which events are considered coincident. -
Page 12: Analysis And Export
Pixie-4 Express User Manual Version 4.21 applied. The time differences (TdiffA-C) and x/y values to plot (ETx, ETy) are updated on [Clear/Rescale]. Click on [1D spectra] to open a new plot with projections of the 2D histogram to the axes. -
Page 13: Time Histograms
Pixie-4 Express User Manual Version 4.21 Click on [Sum ROI] to sum the counts from all bins inside the ROI. The result is printed in the Igor command line window (press <ctrl>-j to bring to front) Click on [ROI Spectra] to open a new plot with the projections of the ROI to the x and y axis ... - Page 14 Pixie-4 Express User Manual Version 4.21 Figure 4-3: The T panel. Three time differences can be defined between any 2 IFFERENCE channels and histogrammed. May 18, 2016...
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Page 15: Examples
Pixie-4 Express User Manual Version 4.21 5 Examples 5.1 Delayed Pulser Figure 5-1: Screenshot from pulser example. A first example of the functionality is illustrated in the screenshot above. A signal from a pulser was fed into channel 0 and (delayed) into channel1. Data was acquired in run mode 0x402. -
Page 16: Hpge And Nai With Na-22 Source
Pixie-4 Express User Manual Version 4.21 the y axis. Clicking the button “Read File” does the same 3 steps as above , and also populates the values for x and y to plot in the 2D histogram (ETx and ETy) IF the time difference is smaller than the CW. - Page 17 Pixie-4 Express User Manual Version 4.21 Figure 5-2: Screenshot from HPGe-NaI example. May 18, 2016...
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