sPHENIX MAPS tracker discussion

[Itaru Nakagawa <itaru AT bnl.gov>]

Hi Ming,

 I read back e-log record from the last year's beam test. I think we would like to start with ~10kHz beam and gradually increase as long as data look healthy.

Best regards,

-itaru

On 2019/06/12 10:30, Ming Liu wrote:

Hi Itaru, Tom and all,

Sure, understood. Last time it took CAD ~0.5hr to switch to e- beam.  I guess INTT could also use the e-beam to scan the material budget of the detectors.

 

Also for the nominal runs, at what intensity would you like to run to proton beam, ~15kHz? ( ~60K protons per spill).

 

Cheers,

Ming

 

-- 

Ming Xiong Liu

P-25, MS H846                     TEL: 505-667-7125 

Physics Division                            631-344-7821(BNL)

LANL                                               630-840-5708(FNAL)

Los Alamos, NM 87545      FAX:  505-665-7020

 

 

From: <owner-sphenix-ldrd AT maillist.lanl.gov> on behalf of sPHENIX LDRD <sphenix-ldrd AT lanl.gov>
Reply-To: Itaru Nakagawa <itaru AT bnl.gov>
Date: Wednesday, June 12, 2019 at 8:32 AM
To: "Ming Liu (BNL)" <ming AT bnl.gov>, sPHENIX LDRD <sphenix-ldrd AT lanl.gov>, sphenix-mvtx-l <sphenix-maps-l AT lists.bnl.gov>, John Haggerty <haggerty AT bnl.gov>, Jin Huang <jhuang AT bnl.gov>, Tom Hemmick <hemmick AT skipper.physics.sunysb.edu>, Zongze Li <ZongzeLi2 AT my.unt.edu>
Cc: Mandy Kathleen Rominsky <rominsky AT fnal.gov>, Evan Niner <edniner AT fnal.gov>
Subject: Re: MVTX 2nd Fermilab test beam readiness

 

Hi Ming,

 It is OK for us to run with 5GeV e-beam for a few hours.

-itaru

 

On 2019/06/11 22:39, Ming Liu wrote:

Hi all, cc’d Mandy and Evan,

 

As of today, we are pretty much ready for sPHENIX MVTX 2^nd test beam run next week.

Telescope system was set up in MT6.2C, and passed ORC and tested on Monday. Nice work done by Cameron, Gerd and Fermilab techs! Sho fixed some minor leaking issues of the cooling system today, thank you Sho!   A new readout mode is developed to use 4-stave telescope to study tracking/hit efficiency vs strobe delay, good work by Sho, Alex et al. At LANL, we have successfully integrated external laser and MOSAIC test bench and taken initial MAPS parameter scan runs with adjustable trigger delays. More scans for MAPS operational optimization will continue for next a few days.  Zongze has developed multiparameter scanning code to simplify the operation, nice work! Our current plan is to start data taking from the evening of 6/19 to the end of the run. The goal is to crosscheck laser scan results (optimized MAPS parameter sets) with test beam data (laser beam tuned ~ MIP, but needs confirmation). If OK with INTT and TPC run plan, we would like to take more 5GeV e-beam data for MVTX stave material budget scan near the end of the run (~ a few hours should be good).  

 

Cheers,

Ming

 

-- 

Ming Xiong Liu

P-25, MS H846                     TEL: 505-667-7125 

Physics Division                            631-344-7821(BNL)

LANL                                               630-840-5708(FNAL)

Los Alamos, NM 87545      FAX:  505-665-7020