Difference between revisions of "Documents"

From Cuawiki
Jump to navigation Jump to search
(38 intermediate revisions by 2 users not shown)
Line 1: Line 1:
==[[PAC40]]==
+
== Presentations and Proceedings ==
 +
 
 +
[https://wiki.jlab.org/cuawiki/images/c/cc/Submission_pdf_proof_narrative.pdf SCINT 2015 Proceedings]
 +
 
 +
[https://wiki.jlab.org/cuawiki/images/a/a5/Horn_CALOR2014_proc.pdf CALOR 2014 Proceedings]
 +
 
 +
===[[PAC45]]===
 +
 
 +
===[[PAC43]]===
 +
 
 +
===[[PAC42]]===
 +
 
 +
===[[PAC40]]===
  
 
== Physics ==
 
== Physics ==
Line 13: Line 25:
  
 
[http://www.vsl.cua.edu/cua_phy/images/4/4f/DVCS_meson_beam_time_comparison_summary.pdf Beam Time Sharing DVCS and pi0 (.pdf)]
 
[http://www.vsl.cua.edu/cua_phy/images/4/4f/DVCS_meson_beam_time_comparison_summary.pdf Beam Time Sharing DVCS and pi0 (.pdf)]
 
  
 
=== WACS ===
 
=== WACS ===
  
 +
[https://wiki.jlab.org/cuawiki/images/2/27/RCS12_NewKinematics1.pdf New kinematics from David based on 8 Nov. 2013 collaboration meeting discussions (Nov 2013)]
  
 
[http://www.vsl.cua.edu/cua_phy/images/6/60/Wacs_writeup1.pdf  Simon's report on WACS simulations]
 
[http://www.vsl.cua.edu/cua_phy/images/6/60/Wacs_writeup1.pdf  Simon's report on WACS simulations]
  
 
[http://www.vsl.cua.edu/cua_phy/images/7/79/RCS-th.pdf Notes from Peter Kroll, Nov 2012]
 
[http://www.vsl.cua.edu/cua_phy/images/7/79/RCS-th.pdf Notes from Peter Kroll, Nov 2012]
 
  
 
=== SIDIS mesons ===
 
=== SIDIS mesons ===
  
 +
see PAC40 proposal
  
 
=== DES mesons ===
 
=== DES mesons ===
Line 30: Line 42:
 
[http://www.vsl.cua.edu/cua_phy/images/9/94/Pi0-th.pdf Notes from Peter Kroll, Nov 2012]
 
[http://www.vsl.cua.edu/cua_phy/images/9/94/Pi0-th.pdf Notes from Peter Kroll, Nov 2012]
  
 +
=== Neutral Pion Photoproduction ===
 +
 +
[https://wiki.jlab.org/cuawiki/images/7/77/Pi090_ratio.eps Ratio pi0/pi+ from Peter Kroll model at 90CM]
 +
 +
[https://wiki.jlab.org/cuawiki/images/9/93/Pi0pip_tdep.eps Ratio pi0/pi+ t dependence from Peter Kroll model]
  
  
 
== Detector ==
 
== Detector ==
  
* ''PMT specs'': Hamamatsu R4125, 19mm diameter, gain is about 8.7E+5 at 1.5kV max. anode voltage and rise time 2.5ns. This PMT was also used in Primex and we have designed a new active voltage divider that improves the performance of the PMT by a factor of 25. See the [https://wiki.jlab.org/cuawiki/images/a/ac/NSS2012_JLAB.pdf report at the 2012 IEEE NSS/MIC/RTSD conference] by V. Popov and H. Mkrtchyan.
+
=== General ===
 +
 
 +
Description of the PbWO4 detector option:
 +
 
 +
[https://indico.in2p3.fr/getFile.py/access?contribId=19&sessionId=3&resId=0&materialId=slides&confId=7052 Presentation at Orsay Workshop, Nov 2012]
 +
 
 +
[http://www.jlab.org/exp_prog/proposals/12/C12-11-102.pdf PAC39 proposal, May 2012]
 +
 
 +
 
 +
=== Crystal characterization ===
 +
 
 +
 
 +
* [http://www.vsl.cua.edu/cua_phy/index.php/MainPage:Nuclear:NPS:PWO:CrystalLOG Table of results of SICCAS crystals produced in 2014 and 2015] - measurements carried out at CUA
 +
 
 +
 
 +
 
 +
* Results of tests of subsets of the 10+5 SICCAS produced crystals (2014) at Giessen, BNL, and Caltech
 +
::* Results of crystals 2, 3, 6, 8, and 9 from Giessen:
 +
::::* [https://wiki.jlab.org/cuawiki/images/9/9a/SICCAS_2015May_5old_dk.pdf Absorption coefficient]
 +
::::* [https://wiki.jlab.org/cuawiki/images/8/83/SICCAS_2015May_5old_T.pdf Transmittance]
 +
::::* Light Yields: [https://wiki.jlab.org/cuawiki/images/0/0a/SICCAS_2015May_5old_LY_2.pdf LY_2], [https://wiki.jlab.org/cuawiki/images/f/f3/SICCAS_2015May_5old_LY_3.pdf LY_3], [https://wiki.jlab.org/cuawiki/images/6/67/SICCAS_2015May_5old_LY_2_6.pdf LY_6], [https://wiki.jlab.org/cuawiki/images/a/a4/SICCAS_2015May_5old_LY_8.pdf LY_8], [https://wiki.jlab.org/cuawiki/images/3/37/SICCAS_2015May_5old_LY_9.pdf LY_9]
 +
::* [https://wiki.jlab.org/cuawiki/images/f/fe/4EIC_150608_SIC_PWO.pdf Results for crystals 5 and 11 from Caltech and comparison to CMS crystal performance]
 +
::* [https://wiki.jlab.org/cuawiki/images/2/2e/PWO_SIC_BNL_measurements.pdf Results for crystals 7 and 15 from BNL]
  
 +
 +
[http://www.vsl.cua.edu/cua_phy/images/c/cb/Hamlet.pdf Hamlet's report on crystal properties from Hall C meeting, 24 January 2013]
  
 
* ''PbWO4 references'':
 
* ''PbWO4 references'':
Line 43: Line 84:
 
::* R. W. Novotny, "The Electromagnetic Calorimetry of the PANDA Detector at FAIR", J. Phys. Conf. Serv. 404 012063 (2012)
 
::* R. W. Novotny, "The Electromagnetic Calorimetry of the PANDA Detector at FAIR", J. Phys. Conf. Serv. 404 012063 (2012)
  
 +
 +
=== PMTs ===
 +
 +
* ''PMT specs'': Hamamatsu R4125, 19mm diameter, gain is about 8.7E+5 at 1.5kV max. anode voltage and rise time 2.5ns. This PMT was also used in Primex and we have designed a new active voltage divider that improves the performance of the PMT by a factor of 25. See the [https://wiki.jlab.org/cuawiki/images/a/ac/NSS2012_JLAB.pdf report at the 2012 IEEE NSS/MIC/RTSD conference] by V. Popov and H. Mkrtchyan.
 +
 +
 +
[http://www.vsl.cua.edu/cua_phy/images/a/ac/NSS2012_JLAB.pdf New Active PMT Base for PbWO4 (Popov, H. Mkrtchyan, presentation at IEEE, Nov 2012)]
 +
 +
 +
'''Hamamatsu PMT Specs'''  11 Oct 2013, C.E.Hyde
 +
 +
*[[Media:AGhassemi-email-11Oct2013.pdf]]
 +
 +
*specs on standard 1" PMTs: 
 +
::[http://www.hamamatsu.com/resources/pdf/etd/R8619_TPMH1331E03.pdf R8619 10 stage PMT]
 +
::[http://www.hamamatsu.com/resources/pdf/etd/R9800_TPMH1298E05.pdf R9800  8 stage PMT]
 +
:: Low profile (short) 29mm R7111 PMT [[Media:R7111.pdf]]
 +
* Mesh Dynode PMT (30x30 mm2)  [[Media:R11187_data_sheet_0911.pdf]]  R11187=replacement for Hall A DVCS R7877
 +
:: Magnetic Field Response [[Media:R7877_Magnetic_Field_Characteristics.pdf]]
 +
:: Cathode Lifetime data  [[Media:QG1369A_R7877_Life.pdf]]
 +
* R7525 29mmφ PMT [[Media:R7525-TPMH1244E02.pdf]]
 +
* R4125 19mmφ (Standard for PbWO4)
 +
:: Magnetic Field Response [[Media:R4125_Effects_of_Magnetic_Fields.pdf]]
 +
:: Cathode Lifetime data  [[Media:R4125_(100_uA_&_1000_h)_QG0016B.pdf]]
 +
 +
 +
=== Dose Rate Estimates ===
  
 
[http://www.vsl.cua.edu/cua_phy/images/a/a1/NPS-dose-rates.pdf Dose rate estimations for PbWO4 detector at 4m from target, at 1uA, and for a 10-cm long target]
 
[http://www.vsl.cua.edu/cua_phy/images/a/a1/NPS-dose-rates.pdf Dose rate estimations for PbWO4 detector at 4m from target, at 1uA, and for a 10-cm long target]
Line 69: Line 137:
 
[http://www.vsl.cua.edu/cua_phy/images/a/ae/Bgr_sweep_e100_g3.pdf Photon threshold=3 MeV]
 
[http://www.vsl.cua.edu/cua_phy/images/a/ae/Bgr_sweep_e100_g3.pdf Photon threshold=3 MeV]
  
 +
= [[Magnet]] =
 +
 +
 +
== Light monitoring and Curing System ==
  
[http://www.vsl.cua.edu/cua_phy/images/c/cb/Hamlet.pdf Hamlet's report on crystal properties from Hall C meeting, 24 January 2013]
+
[https://wiki.jlab.org/cuawiki/images/4/4d/NPS-Light-Monitoring-System.pdf Notes on Light Monitoring System from Hamlet]
 +
 
 +
[https://wiki.jlab.org/cuawiki/images/c/c4/NPS-Curing-System.pdf Notes on Curing System from Hamlet]
  
[http://www.vsl.cua.edu/cua_phy/images/a/ac/NSS2012_JLAB.pdf New Active PMT Base for PbWO4 (Popov, H. Mkrtchyan, presentation at IEEE, Nov 2012)]
 
  
 +
== Electronics ==
  
Description of the PbWO4 detector option:
+
* Experimental requirements on hardware:
  
[https://indico.in2p3.fr/getFile.py/access?contribId=19&sessionId=3&resId=0&materialId=slides&confId=7052 Presentation at Orsay Workshop, Nov 2012]
+
::* [https://wiki.jlab.org/cuawiki/images/c/c5/Reply_TAC_PR12-13-010.pdf DVCS (Table 2 shows HMS and photon trigger rates for each of the settings.)]
  
[http://www.jlab.org/exp_prog/proposals/12/C12-11-102.pdf PAC39 proposal, May 2012]
 
  
'''Hamamatsu PMT Specs'''  11 Oct 2013, C.E.Hyde
+
* [https://wiki.jlab.org/cuawiki/images/4/47/Fadc_time.pdf Note on fADC timing from C. Cuevas]
  
*[[Media:AGhassemi-email-11Oct2013.pdf]]
 
  
*specs on standard 1" PMTs: 
+
= [[High Intensity Photon Source]] =
::[http://www.hamamatsu.com/resources/pdf/etd/R8619_TPMH1331E03.pdf R8619 10 stage PMT]
 
::[http://www.hamamatsu.com/resources/pdf/etd/R9800_TPMH1298E05.pdf R9800  8 stage PMT]
 
* Mesh Dynode PMT (30x30 mm2)  [[Media:
 
* Magnetic Field Response
 
* Cathode Lifetime data
 
::R4125 19mm<math>f</math> [[Media:]]
 

Revision as of 11:21, 6 July 2017

Presentations and Proceedings

SCINT 2015 Proceedings

CALOR 2014 Proceedings

PAC45

PAC43

PAC42

PAC40

Physics

DVCS

Rafael's second report on DVCS simulations (including results for all energies from kinematics table)

Rafael's first report on DVCS simulations

Charles presentation from Hall C meeting, 24 January 2013

Study of effects on kinematics if require HMS angle to be >=13 deg (.pdf)

Beam Time Sharing DVCS and pi0 (.pdf)

WACS

New kinematics from David based on 8 Nov. 2013 collaboration meeting discussions (Nov 2013)

Simon's report on WACS simulations

Notes from Peter Kroll, Nov 2012

SIDIS mesons

see PAC40 proposal

DES mesons

Notes from Peter Kroll, Nov 2012

Neutral Pion Photoproduction

Ratio pi0/pi+ from Peter Kroll model at 90CM

Ratio pi0/pi+ t dependence from Peter Kroll model


Detector

General

Description of the PbWO4 detector option:

Presentation at Orsay Workshop, Nov 2012

PAC39 proposal, May 2012


Crystal characterization


  • Results of tests of subsets of the 10+5 SICCAS produced crystals (2014) at Giessen, BNL, and Caltech
  • Results of crystals 2, 3, 6, 8, and 9 from Giessen:


Hamlet's report on crystal properties from Hall C meeting, 24 January 2013

  • PbWO4 references:
  • P. Adzic et al., "Radiation Hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter", CMS Note 2009/016
  • A.A. Annenkov et al., "Lead Tungstate scintillation material", NIM A 490 (2002) 30-50
  • P. Yang et al., "Growth of large-size crystal of PbWO4 by vertical Brigdman method with multi-crucibles
  • R. W. Novotny, "The Electromagnetic Calorimetry of the PANDA Detector at FAIR", J. Phys. Conf. Serv. 404 012063 (2012)


PMTs

  • PMT specs: Hamamatsu R4125, 19mm diameter, gain is about 8.7E+5 at 1.5kV max. anode voltage and rise time 2.5ns. This PMT was also used in Primex and we have designed a new active voltage divider that improves the performance of the PMT by a factor of 25. See the report at the 2012 IEEE NSS/MIC/RTSD conference by V. Popov and H. Mkrtchyan.


New Active PMT Base for PbWO4 (Popov, H. Mkrtchyan, presentation at IEEE, Nov 2012)


Hamamatsu PMT Specs 11 Oct 2013, C.E.Hyde

  • specs on standard 1" PMTs:
R8619 10 stage PMT
R9800 8 stage PMT
Low profile (short) 29mm R7111 PMT Media:R7111.pdf
Magnetic Field Response Media:R7877_Magnetic_Field_Characteristics.pdf
Cathode Lifetime data Media:QG1369A_R7877_Life.pdf
Magnetic Field Response Media:R4125_Effects_of_Magnetic_Fields.pdf
Cathode Lifetime data Media:R4125_(100_uA_&_1000_h)_QG0016B.pdf


Dose Rate Estimates

Dose rate estimations for PbWO4 detector at 4m from target, at 1uA, and for a 10-cm long target


Scattering Chamber Information:

  • outer diameter = 45 inches
  • inner diameter = 43.125 inches
  • distance beam line to SHMS window = 1.25 inches

So for a point target, the minimum angle is 58 mr or 3.4 degrees. For an extended target you will need to adjust, it becomes about 4 degree for a 15 cm target. So assume 3.5 degrees as rough number.


Study of possibilities for larger beam pipe assemblies

Energy spectra for electrons, photons, positrons including fits


Rates and rates per crystal vs. angle relative to beam for: 4 m from target, 6.6 GeV beam energy, 1uA beam current, and 10-cm LH2 target for:

Photon threshold=10 MeV

Photon threshold=3 MeV

Magnet

Light monitoring and Curing System

Notes on Light Monitoring System from Hamlet

Notes on Curing System from Hamlet


Electronics

  • Experimental requirements on hardware:



High Intensity Photon Source