SimonJolly at 22:54, 16 November 2016

2016-11-16T22:54:18Z

← Older revision		Revision as of 22:54, 16 November 2016
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	* Calculated kappa for Vavilov distribution for mylar: as '''RS''' mentioned last week.		* Calculated kappa for Vavilov distribution for mylar: as '''RS''' mentioned last week.
	* Emailed ROOT developers about improving integration routine to speed up analysis.		* Emailed ROOT developers about improving integration routine to speed up analysis.
	* Will probably move onto individual waveform fitting since spectrum fitting needs input from ''MH's''' simulations: will talk to '''ABF''' about loading waveform files.		* Will probably move onto individual waveform fitting since spectrum fitting needs input from '''MH's''' simulations: will talk to '''ABF''' about loading waveform files.

	'''AK''':		'''AK''':

SimonJolly at 22:53, 16 November 2016

2016-11-16T22:53:49Z

← Older revision		Revision as of 22:53, 16 November 2016
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	'''AK''':		'''AK''':

	* Still working on producing waveforms with Caen detector emulator.		* Still working on [http://www.hep.ucl.ac.uk/pbt/wikiData/presentations/2016/AKnoetze_16.11.2016.pdf producing waveforms with Caen detector emulator].
	* Managed to test imported spectrum: adjusts magnitude of specified waveform shape according to spectrum.		* Managed to test imported spectrum: adjusts magnitude of specified waveform shape according to spectrum.
	* Reconstructing waveform magnitude and integrated signals using scope: integrated signal matches input spectrum, but magnitude histogram shows double peaks.		* Reconstructing waveform magnitude and integrated signals using scope: integrated signal matches input spectrum, but magnitude histogram shows double peaks.

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 16th November 2016 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Andreas Chris..."

2016-11-16T22:51:33Z

Created page with "== Minutes for UCL Proton Calorimetry Meeting, 16th November 2016 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Andreas Chris..."

New page

== Minutes for UCL Proton Calorimetry Meeting, 16th November 2016 (D17, Physics & Astronomy, UCL) ==

=== Present ===

'''Simon Jolly''', '''Laurent Kelleter''', '''Andreas Christou''', '''Adam Knoetze''', '''Anastasia Basharina-Freshville''' (Phone)

'''LK''':
* Most of last week spent at Software Carpentry workshop.
* Managed to run OpenGL visualiser, but not successfully...
* Needs to speak to Lawrence about initialising optical photons in calorimeter simulations.
* Would like an introduction on the experimental runs at Clatterbridge from '''ABF'''.

'''AC''':

* Loaded down with coursework this week...
* Calculated kappa for Vavilov distribution for mylar: as '''RS''' mentioned last week.
* Emailed ROOT developers about improving integration routine to speed up analysis.
* Will probably move onto individual waveform fitting since spectrum fitting needs input from ''MH's''' simulations: will talk to '''ABF''' about loading waveform files.

'''AK''':

* Still working on producing waveforms with Caen detector emulator.
* Managed to test imported spectrum: adjusts magnitude of specified waveform shape according to spectrum.
* Reconstructing waveform magnitude and integrated signals using scope: integrated signal matches input spectrum, but magnitude histogram shows double peaks.
* Will investigate double peaks next week but continue working on producing PMT-like pulses.
* Will also adjust format of ASCII scope waveform files to restart timebase for each waveform, rather than continuous.

'''SJ''':
* Email James Dawson at DPD Couriers for quote for Clatterbridge transport.

'''ABF''':
* Putting together list for upcoming Clatterbridge trip.
* Optical module setup to be used:
** 2” Hamamatsu R13089-100 PMT with negative UCL soldered base (running at -900 V)
** Coupled to a 3 cm x 3 cm x 5 xm cuboid ENVINET/NUVIA standard scintillator
** Coupled with BC-630 gel and wrapped in 3 layers of PTFE on the sides and 12 um of Mylar on the sides and entrance face.
* List of measurements to make at Clatterbridge (not necessarily in this order):
*# Remember to do a peak current estimate at -900 V at a threshold of -100 mV. Note! Results for peak current at -900 V with Hamamatsu active divider base PMT: Amplitude: 421 mV Width: 29.2 ns At a threshold of: - 100 mV Peak current: 12 mA
*# Energy-range calibration scan with the Clatterbridge wheel carried out at low rates and using fine steps: Using the digitiser in ADC mode for a gate of 150 ns Some data collected with the digitiser in waveform mode
*# Measurements with two PMMA plate thicknesses corresponding to two different wheel segment thicknesses to again confirm that we are only going through one segment of the wheel.
*# ADC and especially waveform data collected at a range of rates going up to high rates.
*# Calibration of scattering foil current and rates measured on the scope, so we can hopefully extrapolate the rates using the scattering foil current more accurately this time.
*# Rate tests with the scope.
*# Data taking with the scope.
*# Remember to take note of the dose delivered to the scintillator!

* List of equipment to take (please add anything we've forgotten):
*# Digitiser
*# Portable HV unit
*# Laptop
*# Scope, keyboard and mouse
*# The usual “box of tricks”, containing things like BC630 gel, the two scintillators, the two PMTs, barrels and connectors etc.
*# The smaller of the two black boxes to house the OM setup
*# Small pulser? We usually bring this with us but so far haven’t needed to us it ('''SJ''': not necessary).

* This time, as we’re using a courier, I think perhaps it best to not take the large hexagonal OM with us. Ruben - you usually bring some emergency tools with you - is there something you recommend we take with us since you won’t be there this time?

* “To Do” before trip:
*# 207Bi measurement for radiation hardness tests.
*# Transportation of equipment from UCL form (will this need to be given to the courier?)
*# Finalise organising courier - we are still waiting to hear from MSSL. If they don’t respond soon I’ll send them an email.

Proton Calorimetry/Meetings/2016/11/16 - Revision history

SimonJolly at 22:54, 16 November 2016

SimonJolly at 22:53, 16 November 2016

SimonJolly: Created page with "== Minutes for UCL Proton Calorimetry Meeting, 16th November 2016 (D17, Physics & Astronomy, UCL) == === Present === '''Simon Jolly''', '''Laurent Kelleter''', '''Andreas Chris..."