Difference between revisions of "G2p BCM calibration"

From Hall A Wiki
Jump to: navigation, search
(→‎Data)
(→‎Tungsten Calorimeter Calibration Results)
 
(15 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
==Tungsten calorimeter==
 
==Tungsten calorimeter==
 
===Introduction===
 
===Introduction===
−
 
−
===Data===
 
−
4/5/2012    100nA      3761/22788/40837
 
−
 
−
3/28/2012    75nA      3437/22470/40486
 
−
 
−
3/16/2012    50nA      3254/22238/40388
 
−
 
−
3/13/2012    25nA      3248/22338/40368
 
−
 
−
3/10/2012    pedestal  3053/22133/40296
 
  
 
===Analysis and scripts===
 
===Analysis and scripts===
 +
you can find the script in:
 +
/adaqfs/home/adaq/pzhu/bcm/tungsten
  
 
===Tungsten Calorimeter Calibration Results  ===
 
===Tungsten Calorimeter Calibration Results  ===
−
charge=(totalCount-(Pedestal*clockCount))*Slope
+
calibration constant can find in: [http://hallaweb.jlab.org/experiment/g2p/collaborators/pzhu/wiki/pyDB/bcm%20calibration.ods here]
 +
 
 +
Note: SIS3801 have different constant with SIS3800
  
−
{| border="1"
+
  ~3.17 3rm downstream scaler abnormal
−
|+ Left Arm
+
3.18~4.2 LHRS upstream scaler noisy
−
|-
+
4.2~4.9 RHRS SIS3801 scaler not working
−
! scope="col" |
+
4.9 changed RHRS scaler channel for bcm
−
! scope="col" | 3149(25nA)
+
4.19~ calibration constant changed
−
! scope="col" | 3254(50nA)
+
Near 5.12 3rm sis3801 not working?
−
! scope="col" | 3053(ped)
+
5.13~5.14 downstream broken
−
! scope="col" | 3437(75nA)
+
−
! scope="col" | 3761(ped)
+
in constant area:
−
|-
+
blue available slope
−
! scope="col" | upslope(slowclk)
+
green available pedestal
−
| 3.32610E-07 || 3.34650E-07 || 2.02292E+00||2.30062E-07||2.01109E+00
+
black not available
−
|-
+
−
! scope="col" | downslope(slowclk)
+
"in avail run area:
−
| 2.57945E-07 || 2.57767E-07 || 2.74581E+00||2.56647E-07||2.72583E+00
+
  black means not available
−
|-
+
same color  in neighbour cell means same calibration constant"
−
! scope="col" | upslope(fastclk)
+
−
| 3.32610E-07 || 3.34650E-07 || 1.99399E-02||2.30085E-07||1.98204E-02
+
−
|-
+
−
! scope="col" | downslope(fastclk)
+
−
| 2.57945E-07 || 2.57767E-07 || 2.70655E-02||2.56631E-07||2.68645E-02
+
−
|-
+
−
! scope="col" | Charge
+
−
| 3.16693E-05 || 1.99157E-05||||1.59364E-05||
+
−
|-
+
−
! scope="col" | up counts
+
−
| 9.52143E+07 || 5.95120E+07||||6.92701E+07||
+
−
|-
+
−
! scope="col" | down counts
+
−
| 1.22775E+08 || 7.72623E+07||||6.20947E+07||
+
−
|}
+
  
−
{| border="1"
+
how to use calibration constant to calulate charge:
−
|+ Right Arm
+
  happex C=slope*875us*(ΔA-ped*ΔEntry))
−
|-
+
scaler SIS3800 & SIS3801 C=slope*(ΔA-ped*ΔEntry)
−
! scope="col" |
+
−
! scope="col" | 22238(25nA)
+
−
! scope="col" | 22338(50nA)
+
−
! scope="col" | 22133(ped)
+
−
! scope="col" | 22470(75nA)
+
−
! scope="col" | 22788(ped)
+
−
|-
+
−
! scope="col" | upslope(slowclk)
+
−
| 3.32975E-07 || 3.35347E-07 || 2.02291E+00
+
−
|-
+
−
! scope="col" | downslope(slowclk)
+
−
| 2.58228E-07 || 2.58304E-07 || 2.74580E+00
+
−
|-
+
−
! scope="col" | upslope(fstclk)
+
−
| 3.32975E-07 || 3.35347E-07 || 2.02291E+00
+
−
|-
+
−
! scope="col" | downslope(fstclk)
+
−
| 2.58228E-07 || 2.58304E-07 || 2.74580E+00
+
−
|-
+
−
! scope="col" | Charge
+
−
| 3.17040E-05 || 1.99572E-05
+
−
|-
+
−
! scope="col" | up counts
+
−
| 9.52143E+07 || 5.95120E+07
+
−
|-
+
−
! scope="col" | down counts
+
−
| 1.22775E+08 || 7.72623E+07
+
−
|}
+
  
−
{| border="1"
+
how to use calibration constant to calulate current:
−
|+ Third Arm
+
happex: I=slope*(rate-ped)*875/1041.65
−
|-
+
sis3800: I=slope*(rate-ped*clockrate)
−
! scope="col" |
+
sis3801: I=slope*(rate-ped*103.7k*971.65us)/1041.65us
−
! scope="col" | 40368(25nA)
+
−
! scope="col" | 40388(50nA)
+
−
! scope="col" | 40296(ped)
+
−
! scope="col" | 40486(75nA)
+
−
! scope="col" | 40837(ped)
+
−
|-
+
−
! scope="col" | upslope
+
−
| 3.32718E-07 ||3.35000E-07 || 1.99331E-02||3.36286E-07||1.98266E-02
+
−
|-
+
−
! scope="col" | downslope
+
−
| 1.29014E-07 || 1.29019E-07 || 5.41160E-02||3.66647E-07||2.68700E-02
+
−
|-
+
−
! scope="col" | Charge
+
−
| 3.16797E-05||1.99365E-05 || ||1.59425E-05
+
−
|-
+
−
! scope="col" | up counts
+
−
| 9.52151E+07||5.95125E+07 || ||4.74076E+07
+
−
|-
+
−
! scope="col" | down counts
+
−
| 2.45552E+08||1.54526E+08 || ||4.34819E+07
+
−
|}
+
  
 
==New Hall A 2 channel BCM receiver 1H00==
 
==New Hall A 2 channel BCM receiver 1H00==

Latest revision as of 04:37, 19 November 2012

Tungsten calorimeter

Introduction

Analysis and scripts

you can find the script in: /adaqfs/home/adaq/pzhu/bcm/tungsten

Tungsten Calorimeter Calibration Results

calibration constant can find in: here

Note: SIS3801 have different constant with SIS3800 

~3.17	3rm downstream scaler abnormal
3.18~4.2	LHRS upstream scaler noisy
4.2~4.9	RHRS SIS3801 scaler not working
4.9	changed RHRS scaler channel for bcm
4.19~	calibration constant changed
Near 5.12	3rm sis3801 not working?
5.13~5.14	downstream broken

in constant area:	
blue	available slope
green	available pedestal
black	not available

"in avail run area:
 black means not available
same color  in neighbour cell means same calibration constant"

how to use calibration constant to calulate charge: 

happex	C=slope*875us*(ΔA-ped*ΔEntry))
scaler	SIS3800 & SIS3801 C=slope*(ΔA-ped*ΔEntry)

how to use calibration constant to calulate current: 

happex:  I=slope*(rate-ped)*875/1041.65
sis3800: I=slope*(rate-ped*clockrate)
sis3801: I=slope*(rate-ped*103.7k*971.65us)/1041.65us

New Hall A 2 channel BCM receiver 1H00

Introduction

Settings

Calibration

Linearity

EPICS screens

Retrieved from "https://hallaweb.jlab.org/wiki/index.php?title=G2p_BCM_calibration&oldid=17283"