783620H / 1013 1. INTRODUCTION
program files are installed in the installed in the
\Program Files
folder.
folder; in 64-bit Windows, GammaVision
1.4. MCB Support in GammaVision v7
Your PC’s processor and operating system will determine which MCBs, instrument-to-PC interfaces, and network protocols can be used. For detailed information, see the accompanying C
ON
-
NECTIONS
Driver Update Kit Instruction (P/N 932721) or consult your ORTEC representative.
For setup of pre-2005 MCBs, ORTEC can supply an electronic copy of the ORTEC MCB C
ON
-
NECTIONS
-32 Hardware Property Dialogs Manual (p/n 931001).
Adding more MCBs to your system is fast and easy; see the accompanying C
ONNECTIONS
Driver
Update Kit Instruction (P/N 932721) for instructions.
1.5. Detector Security
GammaVision you to protect your Detectors from destructive access by setting a password with the Lock/Unlock Detector command (Section 5.7.3). Once a password is set, no user or application can start, stop, clear, change presets, change ROIs, or perform any command that affects the data in the detector if the password is not known; however, the current spectrum and settings for the locked device can be viewed read-only. The password is required for any destructive access, whether local, on a network, or via
.JOB
file commands. This includes changing instrument ID numbers and descriptions with the MCB Configuration program.
1.6. List Mode Support
GammaVision now supports our instruments that operate in List Mode (such as the digiBASE
®
,
DSPEC
®
-50/502, and DSPEC
®
Pro). In List Mode, spectroscopy data are streamed directly to the computer, event-by-event, without the data “dead periods” associated with the acquire-storeclear-restart cycle of standard spectrum acquisition. New commands on the menus and toolbar allow you to switch between PHA and List modes, and view all or part of a list mode acquisition. In addition, our automated JOB streams support the new List Mode capabilities.
NOTE
GammaVision samples the list mode data stream every 250 milliseconds of real time, and can display the data with a granularity of 1 second. To extract data at a higher resolution, use our A11-B32 Programmer’s Toolkit in conjunction with your instrument’s firmware commands (documented in the hardware manual) to write your own applications.
5
GammaVision
®
v7 (A66-BW) 783620H / 1013
The first time you start a Detector in List Mode, GammaVision creates a Detector-specific
.LIS
file in
C:\User\Cxt
that stores the accumulating list mode data. The file is closed each time you stop data acquisition. If you leave the Detector in List Mode and the Detector window open, you can stop and restart acquisition and the new data will be appended to the Detector-specific
.LIS
file. These data are retained until the next time this Detector is switched from PHA to List Mode, either manually or by closing and reopening the Detector window (at which point the old data will be cleared). Most users will save the data as soon as acquisition is stopped and before switching back to PHA Mode. However, any time before the next list mode acquisition is
started, you can use the Recall... command to open the Detector-specific
.LIS
file from the
\Cxt folder to a buffer window and save it in
.LIS
format under a new filename. In addition to the listmode data, GammaVision adds the Detector’s current calibration and sample description to this file.
Note that List Mode allows you to clear the data during acquisition; however, regions of interest
(ROIs) cannot be marked in a List Mode window.
The List Data Range... command on the toolbar and the Calculate menu (Section 5.4.2) allows you to view a specific time slice of the list mode data. It is active only in a buffer window in which a
.LIS
file has been retrieved. You can optionally save list mode time slices in any supported file format.
The specific List Mode implementation and data structure for supported ORTEC MCBs differs from model to model; see your instrument’s hardware manual.
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