Autosensing SIS3104’s (firmware 0x03020202) are recognized from driver 2.13-7 onwards.
To continue working with older drivers with an up to date SIS3104 you will have to modify sis3100rem_init.c by adding the corresponding case to the switch (sc_remote_ident&0x00ffff00) as shown below.
case 0x00020200: /* 3104 autobaud */
min_fv=MIN_FV_4;
max_fv=MAX_FV_4;
break;
The 6th ATCA /MicroTCA for Physics Workshop was held prior to the Berkeley 2012 IEEE RT conference. The MTCA.4 RTMs for Generic Fast ADC-DAC is online here.
B. Löhera, b, D. Savrana, b, c, E. Fioria, b, M. Miklavecd, N. Pietrallae, M. Venceljd
a ExtreMe Matter Institute EMMI and Research Division, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany
b Frankfurt Institute for Advanced Studies FIAS, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany
c Innovation Centre for Advanced Sensors and Sensor Systems, INCAS3, Assen, The Netherlands
d Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
e Institut für Kernphysik, TU Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt, Germany
The applicability of LaBr3:Ce detectors for high count rate γ–ray spectroscopy is investigated. A3″×3″ LaBr3:Ce detector is used in a test setup with radioactive sources to study the dependence of energy resolution and photo peak efficiency on the overall count rate in the detector. Digitized traces were recorded using a 500 MHz FADC and analysed with digital signal processing methods. Good performance is obtained using standard techniques up to about 500 kHz counting rate. A pile-up correction method is applied to the data in order to further improve the capabilities at even higher rates with a focus on recovering the losses in efficiency due to signal pile-up. It is shown, that γ–ray spectroscopy can be performed with only moderate lossen in efficiency and high resolution at count rates even above 1 MHz and that the performance can be enhanced in the region between 500 kHz and 10 MHz by using the applied pile-up correction techniques.
Link to the full article: http://dx.doi.org/10.1016/j.nima.2012.05.051
Marco Pisani1, Andrew Yacoot2, Petr Balling3, Nicola Bancone1,
Cengiz Birlikseven4, Mehmet Celik4, Jens Fl ügge5, Ramiz Hamid4,
Paul Köchert5, Petr Kren3, Ulrich Kuetgens5, Antti Lassila6,
Gian Bartolo Picotto1, Ersoy Sahin4, Jeremias Seppä6, Matthew Tedaldi2
and ChristophWeichert5
1 Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, Italy
2 National Physical Laboratory (NPL), Hampton Road, Teddington, Middlesex, TW11 0LW, UK
3 Czech Metrology Institute (CMI), Prague, Czech Republic
4 TÜBITAK, Ulusal Metroloji Enstitüsü (UME), PO 54, 41470 Gebze–Kocaeli, Turkey
5 Physikalisch-Technische Bundesanstalt (PTB), D-38116 Braunschweig, Germany
6 Centre for Metrology and Accreditation (MIKES), PO box 9, Fi-02151 Espoo, Finland
Six European National Measurement Institutes (NMIs) have joined forces within the European Metrology Research Programme funded project NANOTRACE to develop the next generation of optical interferometers having a target uncertainty of 10 pm. These are needed for NMIs to provide improved traceable dimensional metrology that can be disseminated to the wider nanotechnology community, thereby supporting the growth in nanotechnology. Several approaches were followed in order to develop the interferometers. This paper briefly describes the different interferometers developed by the various partners and presents the results of a comparison of performance of the optical interferometers using an x-ray interferometer to generate traceable reference displacements.
The article was published in 2012 Metrologica 49 455 and can be retrieved from
A suppressed contribution from the 230 KHz switching regulators of the 1.2 V and 1.8 V power supply can be seen in the sampling clock spectrum of the SIS3302. Both external and internal clock operation are affected.
While no effects are expected in typical detector readout applications, phase sensitive applications -as they are typically part of accelerator controls- may be affected by the imperfection unless the below described modifications on the SIS3302 are implemented.
Following three modifications are needed for improved 1.2 V and 1.8 V power supply filtering on the SIS3302 card.
SIS3302 boards with serial number 266 and higher ship with the changes implemented already.
Below you can see the clock spectra of a SIS3302 sampling at 50 MHz prior and after the modification.
SIS3302 clock spectrum prior to modification
SIS3302 clock spectrum after modification
We would like to thank Lars Soby from CERN and his team members for bringing the power supply induced clock imperfection to our attention.
User firmware designs for the 8 channel 1.25 GSPS 10-bit SIS3305 digitizer can be based on the new framwork. The user has access to the data stream from the ADC chip and control over the memory controller. The VME interface provides 16 registers per ADC group to be used for parameter exchange e.g.
Both the 2 x 1 GByte memory V1 and the 2 x 2 GByte memory V2 SIS3305 board designs are supported.
A cost contribution for the development of the framework was covered by INFN Genova.
Finally link speed auto sensing firmware is available for the SIS3104 card. The new V3 firmware has SST related and a VME master timing related improvement also and can be downloaded from www.struck.de/sis3104firm.html.
Thanks to Bastian Löher from GSI Darmstadt for following input:
The Version 2.13-5 driver for the sis1100 can be compiled for kernel 3.0.0-12 (Ubuntu 11.10) by altering line 31 of the Makefile:
-ifneq (,$(findstring 2.6.,$(KERNVER)))
+ifneq (,$(findstring 3.0.,$(KERNVER)))
A driver release with a clean solution will be made available beginning of 2012
The first batch of SIS8900’s came out of stuffing earlier this week.
Information on the card can be found under www.struck.de/sis8900.html
SIS8900 RTM Photograph
The 125 MSPS 16-bit MTCA.4 SIS8300 digitizer is used in combination with an in house RTM development at SLAC for FPGA based accelerator phase control to Femtosecond stability.
Download the November 2011 San Jose ATCA summit poster as PDF here (courtesy Ray Larsen et al. SLAC)
