Bnc 970 Portable Multi-Channel Analyzer (MCA) Manual de usuario

Instruction Manual Model 970 Portable Radiation Spectrum Analyzer Berkeley Nucleonics Corporation 2955 Kerner Blvd

Model 970 Instruction Manual 7 10. The Select Detector window is now displayed, showing the detector just entered. Click Use This D

Model 970 Instruction Manual 8 3 Functions, Controls, and Displays 3.1 SNAP-MCA Main Window This window is the starting point fo

Model 970 Instruction Manual 9 The next two menu items, Capture Screen to Clipboard and Save Spectrum as Graphic, relate to the gra

Model 970 Instruction Manual 10 These items are identical in function to the four buttons along the top of the Acquisition Controls

Model 970 Instruction Manual 11 Select/Change automatically disables the 970’s HV supply to allow for safe changing of detectors. A

Model 970 Instruction Manual 12 except for Full Screen, which closes any displayed panel and restores the Spectrum Display to the la

Model 970 Instruction Manual 13 Misc Menu This menu item is for special functions that do not easily fit into other categories. All

Model 970 Instruction Manual 14 When Show Background Subtracted is checked, the loaded Background Spectrum is visually removed from

Model 970 Instruction Manual 15 Sound Menu Three options exist for audible notification to the user that the acquiring of a spectr

Model 970 Instruction Manual 16 The 970 Support Website is a hyperlink to (you guessed it!) the 970 Support Website. The About funct

Firmware Release Software Release 2.1.3 Manual Version 1.0 © 2013 All rights reserved. Printed in U.S.A.

Model 970 Instruction Manual 17 The Show button will only be enabled if an Energy Calibration has been performed. Clicking the Show

Model 970 Instruction Manual 18 3.5 New User Hints Bar If Show New User Hints has been enabled in the View menu on the Menu Bar,

Model 970 Instruction Manual 19 The first group of three boxes (towards the left) reflect data for the individual channel over whic

Model 970 Instruction Manual 20 Spectrum Clear (red background). Indicates that the Spectrum Display contains no data, and the 970 i

Model 970 Instruction Manual 21 3.10 Button Panel The Button Panel provides access to the primary “workhorse” functions of SNAP-MCA

Model 970 Instruction Manual 22 If Ramp HV is not checked, the High Voltage will change as instantaneously as possible. This is usua

Model 970 Instruction Manual 23 Current ROI Set Name: displays the filename of the currently loaded ROI Set. If no file is displaye

Model 970 Instruction Manual 24 Efficiency This displays the Efficiency Calibration Panel. This Efficiency Calibration is based on a

Model 970 Instruction Manual 25 The Cancel button will make any alterations made on the Efficiency Calibration Panel revert back to

Model 970 Instruction Manual 26 If the Allow Edit box is selected, the controls for editing the found peaks are enabled. When Double

Model 970 Instruction Manual i Table of Contents Table of Contents ...

Model 970 Instruction Manual 27 Sample Info This displays the Sample Data Panel for entering sample descriptions and quantities.

Model 970 Instruction Manual 28 The “Print Preview” or “Report” Screen This screen is used to display, save, and print all reports g

Model 970 Instruction Manual 29 4 Using the Library Editor Two libraries are distributed with SNAP-MCA and SNAP-MCA Full. As a gen

Model 970 Instruction Manual 30 Use the Save Lib. button to save the library as it exists, reflecting any changes that have been mad

Model 970 Instruction Manual 31 Pri. This column of radio buttons is used to indicate which energy is designated as the “primary pea

Model 970 Instruction Manual 32 5 Using MCS Mode The Multi Channel Scaling mode is used for the application of watching or recordin

Model 970 Instruction Manual 33 Utility Menu The first four menu items Start (or Restart) Acquisition, Stop Acquisition, Clear Spect

Model 970 Instruction Manual 34 Immediately below the four buttons is a status display showing the current status of data acquisiti

Model 970 Instruction Manual 35 5.3 MCS Analog Panel This panel displays an analog-style meter movement of the current Acquisition.

Model 970 Instruction Manual 36 6 Procedures 6.1 Calibrating a Detector with Model 970 In order to use the Model 970 with a given

Model 970 Instruction Manual 1 Introduction Thank you for purchasing a Model 970 Portable Multi-Channel Analyzer (MCA). A lot of tim

Model 970 Instruction Manual 37 6.2.2 Input and Polarity The 970 has two detector inputs. INPUT 1 is the series “C” connector right

Model 970 Instruction Manual 38 It is worth mentioning that the Gain settings are arbitrary and not absolute. In other words, if you

Model 970 Instruction Manual 39 Procedure 1. Click on the Hardware button on the 970 Button Panel. This will open the Hardware Sett

Model 970 Instruction Manual 40 Discussion SNAP-MCA uses a linear interpolation between Energy Calibration points. More sophisticate

Model 970 Instruction Manual 41 3. Assuming a 137Cs spectrum is displayed, assign channels to the energies by: 4. Clicking the

Model 970 Instruction Manual 42 6.4 Perform a Shape Calibration Prerequisites This procedure assumes that the detector is attached

Model 970 Instruction Manual 43 6.5 Create a Regions of Interest (ROI) Set Prerequisites This procedure assumes that the detector i

Model 970 Instruction Manual 44 3. From the Peak-Based Panel, click on Find Peaks. The peaks and their ROIs will be highlighted a

Model 970 Instruction Manual 45 11. Type a name in the Save ROI Set dialog, and click the Save button. 12. Once the set has been

Model 970 Instruction Manual 46 2. Click on ROI Panel on the SNAP-MCA Button Panel. This will open the ROI Edit Settings Panel alon

Model 970 Instruction Manual 2 1.2 Hardware Description and Controls 1.2.1 Front Panel 1. On/Off Switch. 2. Power On LED. Glows

Model 970 Instruction Manual 47 Discussion Efficiency Calibrations are attached to specific ROI Sets. Known activities of known iso

Model 970 Instruction Manual 48 5. If the ROI is one contained in the calibration source: 6. Select the nuclide for the ROI from t

Model 970 Instruction Manual 49 7 Support Programs Several levels of technical support are available for users of the Model 970. 7.

Model 970 Instruction Manual 50 8 Specifications Preamplifier Type: Charge Sensitive Input: Negative Current (anode) Output

Model 970 Instruction Manual 3 1.2.3 Battery Compartment 1. Battery Type Selection Switch. Recharge position: Allows NiMH batter

Model 970 Instruction Manual 4 1.3.3 Using Alkaline Batteries It is not a problem using non-rechargeable batteries in the Model 970

Model 970 Instruction Manual 5 2 General Operation The Model 970 hardware and SNAP-MCA software are designed to connect the 970 to

Model 970 Instruction Manual 6 8. The Add New Detector window will open and contain some default “generic” data the first time it i