inventory of radioactive sources present in the cavern at pit 8
Download
Skip this Video
Download Presentation
Inventory of radioactive sources present in the cavern at pit 8

Loading in 2 Seconds...

play fullscreen
1 / 7

Inventory of radioactive sources present in the cavern at pit 8 - PowerPoint PPT Presentation


  • 101 Views
  • Uploaded on

Inventory of radioactive sources present in the cavern at pit 8. Gloria Corti Experimental Area Meeting 05 August 2008. HCAL sources. Hadron CALorimeter uses 2 137 Cs sources for calibration one per half detector gamma sources: nº4145RP (330 MBq) and nº4146RP (300 MBq)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Inventory of radioactive sources present in the cavern at pit 8' - guy-pruitt


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
inventory of radioactive sources present in the cavern at pit 8

Inventory of radioactive sources present in the cavern at pit 8

Gloria Corti

Experimental Area Meeting

05 August 2008

hcal sources
HCAL sources
  • Hadron CALorimeter uses 2 137Cs sources for calibration one per half detector
    • gamma sources: nº4145RP (330 MBq) and nº4146RP (300 MBq)
  • Notice at PZ85 and PM85 of presence of sources in UX85-B with map indicating location of garages
      • garage on floor of electronics platform on top of HCAL, source blocked inside
  • UX85-B conventional area when source in garage (≤ 0.5 µSv/h at 40 cm)

Gloria Corti

hcal sources1
HCAL sources
  • EDMS 917876: safety manual and operational procedure for scan
  • Calibration scan announced at least 48 hours in advance and notices in PZ85 and PM85
    • take place from 21:00 in the evening to 7:00 in the morning
  • Flashing panels bottom of Calorimeters stairs and top of gantry at exit of source(s)
  • UX85-B is a supervised area during scan for incident if source would stop during scan
  • Measurements confirm UX85-C is not classified

AD6 HCAL platform

 Maximum dose rate measured = 116 µSv/h Total integrated dose = 1.31 µSv.

AD6 Cryo area

 Maximum dose rate measured: 0.37 µSv/h Total integrated dose: 0.2 µSv.

RESPONSIBLE: Rustem Dzhelyadin

Gloria Corti

ot sources

ROOM DETAILS

2828/U1-A06

(6.0 x 4.0 m2)

2828/U1-A06

RADIOACTIVE SOURCE

position when used in the room

SAFE where the sources

are stored when not used.

UX85 - LOCALIZATION OF RADIOACTIVE SOURCES AT 2828/U1-A06

OT sources
  • OT uses 3 x 90Sr source + 1 55Fe for irradiation and scanning
    • gas quality and chamber response
    • beta sources: no. 4251RP(27 MBq)–4298RP(70MBq)–4299RP(70MBq), X-ray: no. 3398RP (9MBq)

Sources kept in a safe in a locked room in UX85-A

Panel on the door

One beta source used in the room for gas quality with small panel

Gloria Corti

ot sources1
OT sources
  • EDMS 942795: safety manual and operational procedure for scan on OT frame
  • EDMS in preparation for irradiation on pillar
  • Signs in place before installation of source, 2 OT halves chambers open

RESPONSIBLE: Antonio Pellegrino

Gloria Corti

muon source
Muon source
  • MUON uses 1 241Am for gas quality
    • alpha and low energy gamma
  • At the moment in gas building on the surface, will be moved in UX85-A in 2828/U1-A06
  • EMDS 886019: Safety manual and operation procedure
    • kept in a safe, panel when in use

RESPONSIBLE: Burkhard Schmidt

Gloria Corti

delphi sources
432 241Am sources (alpha) in HPC module of the Electromagnetic Barrel Calorimeter – Not accessible

no. 2946RP, 3.2 MBq on 16.10.1987

Responsible Gloria Corti

24 55Fe in TPC of Delphi – Not accessible

2909-2925RP 370 MBq on 03.09.1987

2929-2934RP, 2936RP, 2.41 MBq on 12.02.2007

Responsible Philippe Charpentier

DELPHI sources

Gloria Corti

ad