Module Owner: Mark Rivers: University of Chicago
This page is the home of quadEM.
quadEM supports the Quad Electrometer built by Steve Ross from the APS. This device consists of a 4-channel digital electrometer unit and 2 VME boards. It is typically used for photodiode-based x-ray beam position monitors, although it can be used for any low-current measurement that requires high speed digital input. The device provides 2 readings per diode at up to 815 Hz.
The quadEM software includes device support for 3 records:
The quadEM support uses the synApps modules mca (for digital scope mode), std (for the EPID fast feedback support), and ipUnidig for interrupt support .
Please email any comments and bug reports to Mark Rivers who is responsible for coordinating development and releases.
You can download the software from the links in the table below:
Module Version | Release Date | Filename | Documentation | Release Notes | Known Problems |
---|---|---|---|---|---|
2-2 | 29-Mar-2005 | quadEMR2-2.tar.gz | quadEMDoc | Release notes | See release notes |
2-1 | 24-Mar-2005 | quadEMR2-1.tar.gz | quadEMDoc | Release notes | See release notes |
2-0 | 12-Nov-2003 | quadEMR2-0.tar.gz | quadEMDoc | Release notes | See release notes |
1-1 | 20-June-2001 | quadEMR1-1.tar.gz | quadEMDoc | Release notes | See release notes |
Module version | Requires module | Release needed | Required for |
---|---|---|---|
2-2 | EPICS base | 3.14.7 | Base support |
asyn | 4-2 | Driver support | |
mca | 6-5 | MCA record | |
sscan | 2-5 | Busy record | |
2-1 | EPICS base | 3.14.7 | Base support |
asyn | 4-2 | Driver support | |
mca | 6-4 | MCA record | |
sscan | 2-5 | Busy record | |
2-0 | EPICS base | 3.14.4 | Base support |
mpf | 2-4-2 | Message passing | |
mca | 6-2 | MCA record support | |
std | 2-3 | Fast feedback | dac128V | 2-2 | Fast feedback | ipUnidig | 2-2 | Interrupt support |
1-1 | EPICS base | 3.13.7 | Base support |
mpf | 1-10 | Message passing | |
mca | 5-5 | MCA record support | |
std | 1-4 | Fast feedback | dac128V | 1-4 | Fast feedback | ipUnidig | 1-3 | Interrupt support |
After obtaining a copy of the distribution, it must be installed and built for use at your site. These steps only need to be performed once for the site (unless versions of the module running under different releases of EPICS and/or the other required modules are needed).
gunzip quadEMRX-Y.tar.gz tar xvf quadEMRX-Y.tarwhere X-Y is the release.
.../support/quadEMRX-Y