NSRL Data Library for Run 11C

This is the data repository for transferring data files out of NSRL. 

• Wilkins

The file Wilkins_Fe600_2001_09_26.txt contains all of the run files taken by the Wilkins group during the NSRL Run 11C.  This includes the 600 MeV/n Iron running taken on 26 September 2011.

The data files consists of a time stamp taken every 4 seconds, once for each spill, and the number of scintillator counts indicating the number of Fe ions that traversed the 1 cm^2 counter in the beam.  It contains information for several different exposures.

• Stapor

Fragmentation data were taken on 14 October 2011 using a 600 MeV/n Silicon beam, 174 MeV Gold beam October 20 2011, and 100 and 1000 MeV/n Iron beam on 22 October 2011.  The data files from that run are available below.  Click on the file name to download the ASCII text files.  NTuples are available on request. 

The contents of the data files are given in the headers of each file.  For example, the first file Si_600_14_10_2011_000.txt begins with the lines:

#14:03:43 Oct 14 2011.......................gives the time and date of the start of the run.
#0 mils Aluminum................................user comment: in this case the target thickness.
!V560 SCA....................................First VME module, CAEN V560 Scaler A, reset each spill.
!Channel 8 trg1_sca............................Scaler Channel 8 for the First Trigger Counter
!Channel 9 frg2_sca............................Scaler Channel 9 for the Second Fragmentation Counter
!Channel 10 frg3_sca..........................Scaler Channel 10 for the Third Fragmentation Counter
!Channel 11 trg4_sca..........................Scaler Channel 11 for the Fourth Trigger Counter
!Channel 14 10kHz reset......................Scaler for a 1 kHz Clock that is reset each spill
!Channel 15 trigger_sca.......................Scaler for the Concidence Unit, or Event Trigger
!V560 SCB...................................Second VME module, CAEN V560 Scaler B, not reset each spill
!Channel 14 10kHz..............................Scaler Channel 14 for a 1 kHz scaler
!Channel 15 spill.................................Scaler Channel 15 for a spill counter, incremented every 4 seconds
!V792 QDC..................................Third VME Module, CAEN V792 Charge Sensitive ADC
!Channel 8 trg1_adc............................QDC Channel 8 for the First Trigger Counter
!Channel 9 frg2_adc............................QDC Channel 9 for the Second Fragmentation Counter
!Channel 10 frg3_adc..........................QDC Channel 10 for the Third Fragmentation Counter
!Channel 11 trg4_adc..........................QDC Channel 11 for the Fourth Trigger Counter
!V775 TDC...................................Fourth VME module, CAEN V775 TDC
!Channel 8 trg1_tdc...........................TDC Channel 8 for the First Trigger Counter
!Channel 9 frg2_tdc...........................TDC Channel 9 for the Second Fragmentation Counter
!Channel 10 frg3_tdc.........................TDC Channel 10 for the Third Fragmentation Counter
!Channel 11 trg4_tdc.........................TDC Channel 11 for the Fourth Trigger Counter
!Channel 15 trigger_tdc......................TDC Channel 15 for the Coincindence Unit, or Event Trigger

The file ends with the time and date of the ending of the file, provided the run ends normally.  That is followed by a repeat of the comment line.

In addition to the fragmentation data, we have a record of the beam intensity as a function of time throughout the experiment.  We placed a scintillator in the beam immediately upstream of the aluminum target sheets.  The scintillator is 1 square centimeter, and is observed by a 2" PMT operated to give a Silicon signal of -100 mV.  This signal was discriminated at -30 mV and counted with a fast scaler.  Immedately downstream of the aluminum targets we placed a larger 10 square cm scintillator operated in the same way.  The scaler counts were read out and reset to zero every four seconds.  These scaler counts, and their accumulated sum were written to a file, along with the time stamp every four seconds throughout the experiment.  That file was converted to Excel format, and is available below.

Stapor_Scalers.xlsx

• O'Neill

Scalers for both the 174 MeV/n Au beam on 20-21 October 2011, and the 22 October 2011 140 MeV/n Fe beam, are listed in the file below; each on its own worksheet.  For assistance with this file, contact the NSRL Liaison Physicist.

SEU_October_2011_Scalers.xlsx

For help in downloading this information, contact the NSRL Liaison Physicist.

Last Modified: October 24, 2011
Please forward all questions about this site to: NSRL Web Administrator

One of ten national laboratories overseen and primarily funded by the Office of Science of the U.S. Department of Energy (DOE), Brookhaven National Laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Brookhaven Lab also builds and operates major scientific facilities available to university, industry and government researchers. Brookhaven is operated and managed for DOE's Office of Science by Brookhaven Science Associates, a limited-liability company founded by the Research Foundation for the State University of New York on behalf of Stony Brook University, the largest academic user of Laboratory facilities, and Battelle, a nonprofit, applied science and technology organization.

Privacy and Security Notice  | Contact Web Services for help