inventory of radioactive sources present in the cavern at pit 8 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Inventory of radioactive sources present in the cavern at pit 8 PowerPoint Presentation
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


Download Now 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