LISTSERV mailing list manager LISTSERV 16.5

Help for HPS-SOFTWARE Archives


HPS-SOFTWARE Archives

HPS-SOFTWARE Archives


HPS-SOFTWARE@LISTSERV.SLAC.STANFORD.EDU


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

HPS-SOFTWARE Home

HPS-SOFTWARE Home

HPS-SOFTWARE  December 2014

HPS-SOFTWARE December 2014

Subject:

Re: data with beam

From:

Nathan Baltzell <[log in to unmask]>

Reply-To:

Software for the Heavy Photon Search Experiment <[log in to unmask]>

Date:

Fri, 12 Dec 2014 07:44:08 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (109 lines)

Hi Andrea,

What you have is correct, with of course the addition of pedestal subtraction.

This is the convention used by the DAQ for the trigger (and it would make
sense to use the same convention for the gains in the conditions db):
E(MeV) = GAIN * FADC

And the result of the cosmic gain calibration is then:
GAIN = 15 MeV / MEASURED_COSMIC_FADC_PULSE_INTEGRAL

-Nathan


On Dec 12, 2014, at 3:24 AM, Andrea Celentano <[log in to unmask]> wrote:

> Hi,
> when you refer to "energy calibration in <MeV * ADC >", do you mean something like:
> 
> - The average cosmic deposition in a crystal is 15 MeV
> - Cosmic signals were measured by the FADC in a xxx samples window width, raw mode. Each of the xxx samples is reported in FADC units (12 bits on 1 V)
> - The integration is performed offline, by summing these xxx samples, so that each signal results in an integral, still in FADC units ("integrated")
> - The distribution of FADC integrals was fitted by a Landau distribution.
> - The MIP peak was evaluated to be at yyy FADC integrated units.
> 
> The conversion factor is then:
> 
> Signal(MeV) = Signal(FADC integrated units) * 15 MeV / yyy
> 
> Does this make sense?
> 
> Andrea
> 
> 
> Il 12/12/2014 02:38 AM, McCormick, Jeremy I. ha scritto:
>> Hi,
>> 
>> re: conditions
>> 
>> Nathan and I are in the process of loading conditions into the db for the ECAL.  We were working on this today...
>> 
>> We have a known good channel map.
>> 
>> Calibrations (pedestal + noise) and gains should be in there soon if not already for a multi-run range covering the Engineering Run.
>> 
>> Nathan indicated that the energy calculation is <MeV * ADC> so we need a Driver that makes the CalHit objects according to that formula.  He is going to load gains into the conditions db for that calculation.
>> 
>> —Jeremy
>> 
>> On Dec 11, 2014, at 5:30 PM, Graham, Mathew Thomas <[log in to unmask]> wrote:
>> 
>>> Thanks for the update.  Looks like there are some other issues too re: kyle’s latest email.
>>> 
>>> On Dec 11, 2014, at 8:29 PM, Sho Uemura <[log in to unmask]> wrote:
>>> 
>>>> Andrea wrote the EVIO-LCIO conversion and the raw hit-CalorimeterHit conversion code for mode 7. It works, though it hasn't yet been tested on real (not LED) data or with good pedestals.
>>>> 
>>>> But it's not written using LCIO objects, so it needs to be rewritten - otherwise people will run into problems with analysis down the road, and it will be impossible to make mode 7 work in MC. I'm doing a rewrite to fix that. Should be quick, might do it today, will definitely do it tomorrow.
>>>> 
>>>> In short, the classes exist for the monitoring app and one-step EvioToLcio jobs (doing EVIO-LCIO conversion and hit recon in one step, not relying on raw hits being written to LCIO) to use this data. I don't know whether there are good conditions yet, and that might be the blocker.
>>>> 
>>>> On Fri, 12 Dec 2014, Graham, Mathew Thomas wrote:
>>>> 
>>>>> So, do we have the data classes to read this out yet?  What?s the plan?
>>>>> 
>>>>> Begin forwarded message:
>>>>> 
>>>>> From: Nathan Baltzell <[log in to unmask]<mailto:[log in to unmask]>>
>>>>> Subject: data with beam
>>>>> Date: December 11, 2014 at 5:31:33 PM EST
>>>>> To: HPS-SOFTWARE <[log in to unmask]<mailto:[log in to unmask]>>
>>>>> 
>>>>> Hi Everyone,
>>>>> 
>>>>> Run 3183 has some first data with beam (no target) if anyone wants
>>>>> to take a look.  It's on tape and on disk at:
>>>>> 
>>>>> /volatile/hallb/hps/data/notgt
>>>>> 
>>>>> See log entry:
>>>>> https://logbooks.jlab.org/entry/3312822
>>>>> 
>>>>> -Nathan
>>>>> 
>>>>> ########################################################################
>>>>> Use REPLY-ALL to reply to list
>>>>> 
>>>>> To unsubscribe from the HPS-SOFTWARE list, click the following link:
>>>>> https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1
>>>>> 
>>>>> 
>> ########################################################################
>> Use REPLY-ALL to reply to list
>> 
>> To unsubscribe from the HPS-SOFTWARE list, click the following link:
>> https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1
> 
> ########################################################################
> Use REPLY-ALL to reply to list
> 
> To unsubscribe from the HPS-SOFTWARE list, click the following link:
> https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1

########################################################################
Use REPLY-ALL to reply to list

To unsubscribe from the HPS-SOFTWARE list, click the following link:
https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

February 2024
January 2024
December 2023
November 2023
October 2023
September 2023
August 2023
July 2023
June 2023
May 2023
April 2023
March 2023
February 2023
January 2023
December 2022
November 2022
October 2022
September 2022
August 2022
June 2022
April 2022
March 2022
February 2022
January 2022
December 2021
November 2021
October 2021
September 2021
August 2021
July 2021
June 2021
May 2021
April 2021
March 2021
February 2021
January 2021
December 2020
November 2020
October 2020
September 2020
August 2020
July 2020
June 2020
May 2020
April 2020
March 2020
February 2020
January 2020
December 2019
November 2019
October 2019
September 2019
August 2019
July 2019
June 2019
May 2019
April 2019
March 2019
February 2019
January 2019
December 2018
November 2018
October 2018
September 2018
August 2018
July 2018
June 2018
May 2018
April 2018
March 2018
February 2018
January 2018
December 2017
November 2017
October 2017
September 2017
August 2017
July 2017
June 2017
May 2017
April 2017
March 2017
February 2017
January 2017
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
June 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013
June 2013
May 2013
April 2013
March 2013
February 2013
January 2013
December 2012
November 2012
October 2012
September 2012
August 2012
July 2012
June 2012
May 2012
April 2012
March 2012
February 2012
January 2012
December 2011
November 2011
October 2011
September 2011
August 2011
July 2011
June 2011
May 2011
April 2011
March 2011

ATOM RSS1 RSS2



LISTSERV.SLAC.STANFORD.EDU

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager

Privacy Notice, Security Notice and Terms of Use