Task #745
openHMS Optics calibration
Added by Julie Roche 11 months ago. Updated about 2 months ago.
50%
Description
Status as of 05/24: Two students from Dipangkar Dutta are working with Holly and Mark J. on this
Files
NPS_HMS_InelasticRates_MC.xlsx (17 KB) NPS_HMS_InelasticRates_MC.xlsx | Erik Wrightson, 07/12/2023 04:17 PM |
Updated by Alexandre Camsonne 11 months ago
Information about optics from Tanja
Unless the kinematics are different from those that have already been investigated:
https://hallcweb.jlab.org/wiki/index.php/12_GeV_HMS_Optics_Data
additional optics data may not be necessary. However, sieve runs for each kinematic setting could be beneficial. For completeness, here is the page with optics information for both spectrometers:
https://hallcweb.jlab.org/wiki/index.php/Main_Page#Spectrometer_Optics.
Updated by Alexandre Camsonne 10 months ago
- Status changed from New to In Progress
Updated by Alexandre Camsonne 10 months ago
- % Done changed from 0 to 50
was added to the group
need to setup replay environment
spreadsheet for counting rates available ( put link here)
Updated by Erik Wrightson 10 months ago
Wiki link to the rough optics target estimates for the HMS: https://hallcweb.jlab.org/wiki/index.php/NPS_Run_Plan_(2023)
Also attached here.
Updated by Alexandre Camsonne 9 months ago
Updated scripts to use the y mispointing value
New BPM values , induces a 2.4 mm shift at sieve
redoing x cuts
Updated by Alexandre Camsonne 9 months ago
- Assignee changed from Erik Wrightson to Christine Ploen
Updated by Alexandre Camsonne 9 months ago
Making progress, figured out offset seen by Mark.
Can replay previous experiment data, and checking optimization of coefficients. Seem to work
Updated by Alexandre Camsonne 2 months ago
Hi, Christine, could you post an update ? Even just a few lines is fine.
I guess main question is "is HMS optics affected by sweeping magnet?"
Thank you
Updated by Alexandre Camsonne about 2 months ago
Getting all missing runs needed ( carbon targets missing ) - check if we can do the missing runs - making a list of data to take
checking if magnet on and off can be combined
6.67 settings created
Sebastian working on y_p target cut
settings assigned to each person
Updated by Alexandre Camsonne about 2 months ago
data seems consistent with Jacob's matrix
Updated by Alexandre Camsonne about 2 months ago
Can check optics from already replayed data
Updated by Alexandre Camsonne about 2 months ago
Took additionnal optics data
some shift seen, compared to fall
might need to look at BPM calibration
small offset
continued through run plan until 6 AM
data sweeper on and off taken - seems not much difference
Full set of optics at 15.95
good sieve hole count for optimization