# Presentation: 170250

## TM Report:9.00 in Review Stage 

**Tom Diehl – FNAL PPD**
**Elizabeth Gallas – FNAL CD**
**Terry Toole – U. Maryland**
***TriggerMeister Home Page***
**http://www-d0.fnal.gov/trigger_meister/private/www/**
*** ***

- Trigger Board Meeting
- October 29, 2002

- TM Report

- October 12, 2002

## 9.00 in database, under review...

_**9.00 in database, under review...**_

_**Global_CMT-9.00**_
**in the database as of Friday**
**Any future changes – Trigger Request Specification is REQUIRED **
_**Changes to 9.00 since friday**_
**TB non-issue ****(no discussion required)**
**Accidentally picked up slightly incorrect 3JT15 trigger L3 condition:**
**mp160_L3FJet(SCJET_9,3,15.,0.,3.,-.2,1.2)      (latest EMFR min and max set to defaults)**
**TB issue: MP rates must be reviewed:**
**Worst offender:                                    Mark and Pass n on 4 triggers: %EM_HI_%_SH_TR from 200 to 2000**
**At high luminosity, the MarkAndPass rate to tape individially from EM_HI_SH_TR and EM_HI_2EM_SH_TR was about 1 Hz.**
**Prescale generator makes these rates readily available -- these rates will be factored into prescale decisions for 9.0**

- TM Report

- October 12, 2002

## Changes to 9.00 since Friday (cont’d)

_**Changes to 9.00 since Friday (cont’d)**_

**Only 2 distinct counts: EM thresholds**
**Must choose 2 of the 3 sets of triggers:**
**Bob Kehoe reports today on low thresholds:**
**Unfortunately, the rate problem (is not under control) ...redoubling our efforts ... (to get) bad towers ...noisiness ... under control ...going slow ...characterization of the rates vs. Et threshold this week ... (but) ... noisy towers come and go ...need to measure this several times on different days... (ongoing effort) ... (current indications are)  numbers all look marginally better than in the summer ...**

| Trigger | L1 condition |
| --- | --- |
| EM_MN_SH | CEM(1,2.5eta1.6) |
| 2EM_JPSI 2EM_JPSI_TRK | CEM(2,2.5eta1.6) |
| 3EM_JPSI 3EM_JPSI_TRK | CEM(3,2.5eta1.6) |

- TM Report

- October 12, 2002

## Trigger Change Requests

_**Trigger Change Requests**_

**Currently: Email to TB**
**TriggerChangeReq link on TB page**
**Using language of the trigger database (spreadsheet language is shorthand and sometimes insufficient. do not refer to trigger numbers in the spreadsheet) **
**An example has been posted on the Trigger Change Req Form (based on the recent TAU trigger request)**
**Not the best system but we still MUST have time stamped, concise, succinct trigger change requests (including which triggers are proposed to change)**
**Future: some kind of repository**
**Only for Trigger Change Requests (not prescale, streaming ... discussion)**
**We need this because weeks or months of TB email is hard to sort through**
**Terry knows how to set up ‘elog’ **
**May not be ideal**
**Help is solicited to set up better system**

- TM Report

- October 12, 2002

## Global_CMT-8.41 since Oct 11

_**Global_CMT-8.41 since Oct 11**_

- Online issues effecting triggers/rates:
- CFT – still commissioning
- Downloads frequent
- Regions of detector dropping out
- SCL init rates high
- From many systems, but mainly muon crates
- L2 and L3 re-initialization
- ‘New’ or Updated monitoring tools
- Gordon’s DaqAI
- Terry’s rate plots
- Reinhard’s overlap script
- Decision to reduce rate (further)
- Last week: 500/250/50 Efficiency  60-70%
- “Too aggressive”
- Last 2 days: 400/200/50 Efficiency 80-90%
- “until further notice”

- TM Report

- October 12, 2002

## Preliminary MarkAndPass Rates to tape @ 50E30

- 2EM_MD12_CEM10 (0.24 *)
- EM_2JT15 (0.39 )
- EM15_2JT25 (0.21 *)
- 2TAU_EM10_2CJT5 (0.51)
- JT_95TT (2.27)
- JT_125TT (0.96)
- 3JT15 (0.21)
- MU_W_L2M0_2TRK3 (0.19)
- MU_JT20_L2M0 (0.44)
- TOTAL MarkAndPass = 6. Hz
- * estimated rates

- TM Report

- October 12, 2002