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  • From: videbaek <videbaek AT bnl.gov>
  • To: "Fisyak, Yuri V" <fisyak AT bnl.gov>
  • Cc: "Van Buren, Gene" <gene AT bnl.gov>, witt <witt AT usna.edu>, Richard Witt via Star-tpc-l <Star-tpc-l AT lists.bnl.gov>
  • Subject: Re: [Star-tpc-l] TPC Meeting Today
  • Date: Thu, 16 May 2024 20:02:56 -0400

Thanks Yuri,
maybe another related question. As the resister short was only on the west and the
added resistor was on that side. Are the East parameter unchanged between FF and RFF ??

best Flemming


On 2024-05-16 19:58, Fisyak, Yuri V via Star-tpc-l wrote:
Hello Flemming and all.

* The problem is to understand difference in outer to inner sector
alignment for 2022 with Cosmic for FF and RF samples.

I see overall rotation by ~ 1mrad around Z axis for RF with respect to
FF.

* I have looked in Data Base for parameters of shorts.

My trouble to understand what is going on with 2022 Cosmic for FF and
RF is coming from multiple entries for West Outer Field Cage made
2024-01-25 20:2?:??.

MySQL [Calibrations_tpc]> select
entryTime,beginTime,ring,resistor,MissingResistance from
Geometry_tpc.tpcFieldCageShort where beginTime > '2021-10-01' and
beginTime < '2022-12-31' and side=1 and cage=1 order by beginTime;

+---------------------+---------------------+-------------+------------+-------------------+


| entryTime | beginTime | ring | resistor
| MissingResistance |

+---------------------+---------------------+-------------+------------+-------------------+


| 2022-03-25 20:23:58 | 2021-11-16 21:31:40 | 80.50000000 | 0.00000000
| 0.34500000 |

| 2024-01-25 20:28:58 | 2021-11-16 21:32:00 | 80.50000000 | 0.00000000
| 0.34500000 |

| 2024-01-25 20:28:58 | 2021-11-16 21:56:39 | 80.50000000 | 0.00000000
| 0.00000000 |

| 2022-03-25 20:20:42 | 2021-11-16 21:56:40 | 80.50000000 | 0.00000000
| 0.00000000 |

| 2024-01-25 20:28:58 | 2021-12-01 20:57:16 | 80.50000000 | 0.00000000
| 0.34500000 |

| 2024-01-25 20:28:58 | 2021-12-01 21:06:45 | 80.50000000 | 0.00000000
| 0.00000000 |

| 2024-01-25 20:28:58 | 2021-12-02 00:43:16 | 80.50000000 | 0.00000000
| 0.34500000 |



| 2024-01-25 20:29:01 | 2022-04-18 10:13:32 | 80.50000000 | 0.00000000
| 0.00000000 |

| 2024-01-25 20:29:01 | 2022-04-18 10:38:14 | 80.50000000 | 0.00000000
| 0.34500000 |

+---------------------+---------------------+-------------+------------+-------------------+


715 rows in set (0.00 sec)

* I have a statement : A.Lebedev 05/10/2024 Short IFC 11/18/2021
till end of Run => 1.25 Mom missing resistor, appeared 11/01/2021

And I found in DB the difference in resistor values for my FF sample
(0 and 1.5 MOhm) and RF one (1.25 MOhm).

This explains part of observed difference in alignment parameters.

FF

22319057 resistor: 0 : : MOhm value of added external resistor
to resistor chain

22319058 resistor: 0 : : MOhm value of added external resistor
to resistor chain

22319062 resistor: 0 : : MOhm value of added external resistor
to resistor chain

22319073 resistor: 0 : : MOhm value of added external resistor
to resistor chain

22319082 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319090 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319093 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319103 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319105 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319107 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22319113 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22320001 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22320006 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22320007 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22320008 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

22320009 resistor: 1.5 : : MOhm value of added external resistor
to resistor chain

FF

22336053 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

22336054 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

22336057 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

22336058 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

22336059 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

22336061 resistor: 1.25 : : MOhm value of added external resistor
to resistor chain

Yuri
Fisyak

STAR Phone: +1 631 344 3913
Brookhaven National Laboratory Fax: +1 631 344 4206
510A/1-161
http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov

From: Star-tpc-l <star-tpc-l-bounces AT lists.bnl.gov> on behalf of Van
Buren, Gene via Star-tpc-l <star-tpc-l AT lists.bnl.gov>
Date: Thursday, May 16, 2024 at 12:34 PM
To: witt <witt AT usna.edu>, Richard Witt via Star-tpc-l
<Star-tpc-l AT lists.bnl.gov>
Subject: Re: [Star-tpc-l] TPC Meeting Today

Hi,

Here is the relevant database content for the shorted ring in the IFC
west during the cosmic data taking before Run 22, along with the
explanations of the database table's fields. I do not have very high
confidence in the location ("ring") of the short that I selected. A
reminder that a fully shorted pair of rings means that a single 2 MOhm
resistor is bypassed ("missing") by the short.

-Gene

mysql -h dbx.star.bnl.gov -P 3316 -C Geometry_tpc -e "select
beginTime,ring,resistor,MissingResistance from tpcFieldCageShort where
beginTime between '2021-10-01' and '2022-01-01' and side=1 and cage=0
order by beginTime asc"
+---------------------+--------------+------------+-------------------+
| beginTime | ring | resistor | MissingResistance
|
+---------------------+--------------+------------+-------------------+
| 2021-10-20 00:00:00 | 160.50000000 | 0.00000000 | 2.00000000
|
| 2021-11-15 21:52:00 | 160.50000000 | 3.00000000 | 2.00000000
|
| 2021-11-15 22:22:00 | 160.50000000 | 2.50000000 | 2.00000000
|
| 2021-11-15 23:07:00 | 160.50000000 | 1.50000000 | 2.00000000
|
| 2021-11-18 12:40:00 | 160.50000000 | 0.00000000 | 2.00000000
|
| 2021-11-18 21:45:00 | 160.50000000 | 1.50000000 | 2.00000000
|
| 2021-11-18 22:43:00 | 160.50000000 | 1.25000000 | 2.00000000
|
+---------------------+--------------+------------+-------------------+

more $STAR/StDb/idl/tpcFieldCageShort.idl
/* tpcFieldCageShort.idl
*
* Table: tpcFieldCageShort
*
* description: * provide info on shorted rings in the field
cages
*/

struct tpcFieldCageShort {

float side; /* 0 = east, 1 = west */
float cage; /* 0 = inner, 1 = outer */
float ring; /* ring location of the short (e.g. 169.5) */
float resistor; /* MOhm value of added external resistor to
resistor chain */
float MissingResistance; /* missing resistance */

};

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--
Flemming Videbaek
senior scientist, emeritus
videbaek @ bnl.gov
Brookhaven National Lab
Physics Department
Bldg 510D
Upton, NY 11973

phone: 631-344-4106
cell : 631-681-1596




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