The ATLAS activation studies

This page contains a collection of outdated information regarding activation studies relevant to the ATLAS experiment. Please use the new web-page with the latest corrected results.

CERN RADIATION SAFETY MANUAL (file in pdf)

LAHET TM/MCNP TM/CINDER90 ACTIVATION CALCULATIONS FOR THE ATLAS INTEGRATED FORWARD CALORIMETER CONCEPT (files in different formats)
L. Waters and W.B. Wilson, ATLAS note ATL-CAL-94-47.

RADIOLOGICAL IMPLICATIONS OF THE RELEASE OF AIR FROM THE LHC EXPERIMENTAL REGIONS (file in pdf)
M. Huhtinen et al., CERN/TIS-RP/96-06

RADIATION STUDIES IN THE COLLIMATOR REGIONS OF THE ATLAS EXPERIMENTAL AREA (file in ps)
I. Dawson and G.R. Stevenson, CERN/TIS-RP/IR/98-01

WORKING DOCUMENT ON THE TAS INTERFACE (file in pdf-format)
F. Butin et al.

INDUCED RADIOACTIVITY IN THE ATLAS INNER DETECTOR - TRT (file in ps)
S.A. Cetin and A. Romaniouk, ATLAS note ATL-INDET-2000-13

DRAWINGS OF THE ATLAS BEAMPIPE (file in pdf-format)
by E. Morin and R. Veness (May 2000)

SHORT ACCESS IN ATLAS (file in pdf-format)
SHORT ACCESS IN ATLAS - ALTERNATIVE 1 (file in pdf-format)
Collection of plots by V. Hedberg
ACTIVATION AND SHORT ACCESS IN ATLAS (old file in pdf-format) (new file in pdf-format)
Compilation by V. Hedberg of calculations relevant to short access.

LONG ACCESS IN ATLAS (file in pdf-format)
LONG ACCESS IN ATLAS - ALTERNATIVE 1 (file in pdf-format)
LONG ACCESS IN ATLAS - ALTERNATIVE 2 (file in pdf-format)
Collection of plots by V. Hedberg
ACTIVATION AND LONG ACCESS IN ATLAS (old file in pdf-format) (new file in pdf-format)
Compilation by V. Hedberg of calculations relevant to long access.

STAR DENSITY MAPS
Collection of plots by M. Shupe (all files in pdf-format).
The star density scale in the plots can be renormalized to contact doserate in mSv/h by multiplying the stardensity scale with a factor 10-12.

Map of stardensity for TP43 (zoom)
Map of stardensity with JD plug made out of W (zoom)
Map of stardensity with JD plug made out of Cu (zoom)
Map of stardensity in June 2001 (zoom)... (no zoom)
Map of stardensity in July 2001 (zoom)... (no zoom)
Map of stardensity in August 2001 (zoom)... (no zoom)
Map of stardensity in October 2001 (beampipe region out to R=60cm)

ACTIVATION STUDY OF ATLAS DETECTOR (file in html-format) (file in doc-format)
Progress report by M.N. Morev

ACTIVATION STUDIES IN THE ATLAS DETECTOR
V.A. Klimanov, E.I. Kulakova, M.N. Morev and V.K. Sakharov
ISTC Project #1800
(All files in PDF format)

Part 1: Text, Table 1 - Composition of materials, Figure 1 - Drawing of the disk shield
Part 2: Figure 2-13 - Activation of Carbon for different assumptions about running and cooling off time
Part 3: Figure 14-25 - Activation of Al serie 2000 for different assumptions about running and cooling off time
Part 4: Figure 26-37 - Activation of Al serie 5000 for different assumptions about running and cooling off time
Part 5: Figure 38-49 - Activation of cast iron for different assumptions about running and cooling off time
Part 6: Figure 50-61 - Activation of stainless steel for different assumptions about running and cooling off time
Part 7: Figure 62-73 - Activation of copper for different assumptions about running and cooling off time
Part 8: Figure 74-85 - Activation of brass for different assumptions about running and cooling off time
Part 9:
Table 2 - Activation of the JD plug (copper) by high energy hadrons,
Table 3 - Activation of the JD plug (brass) by low energy neutrons,
Table 4 - to be ignored,
Table 5 - Activation of the JF bridge (cast iron) by high energy hadrons,
Table 6 - Activation of the JF bridge (cast iron) by low energy neutrons
Addendum I: Activation of the JD plug (copper) by low energy neutrons,
Activation of the JD plug (copper) by low energy neutrons when Al ring is used as a shield
Addendum II: Activation of the JD plug (copper) by high energy hadrons,
Activation of the JD plug (copper) by high energy hadrons when Al ring is used as a shield
Addendum III: Figure 1-24 - Activation of lead with and without antimon for different assumptions about running and cooling off time

Maps of activation around the JD plug (Plots by V. Hedberg from the above calculation)
Map of activation around the JF shield (Plots by V. Hedberg from the above calculation)

ACTIVATION OF ARGON (file in pdf-format)
Report by M.N. Morev

Calculations from fluxmaps with 10 cm binning:

ACTIVATION DOSERATE IN ACCESS SCENARIOS TO THE AREA BETWEEN DISK SHIELD AND TOROID
V.A. Klimanov, E.I. Kulakova, M.N. Morev and V.K. Sakharov
ISTC Project #1800, 2nd quarter (Jul.-Sep. 2001)
(All files in PDF format)

Part 1: Text,
Table 1 - JD geometry and materials,
Table 2 - JT and toroid geometry and materials,
Table 3 - Beampipe geometry,
Table 4 - Material Composition
Part 2: Table 5 - Total doserates between the JD and the JT with the beampipe installed
Part 3: Table 6 - Total doserates between the JD and the JT with the beampipe removed
Part 4: Table 7-8 - Doserates during access to the small wheel
Part 5: Table 9-10 - Doserates from the JD
Table 11-12 - Doserates from the JT
Table 13-14 - Doserates from the beampipe
Table 15 - Comparison between the DOT and MCNP programs

Maps of activation in the region between the JD and the JT (with and without beampipe)
Map of activation in the access region inside the small wheel
(Plots by V. Hedberg from the above calculation)

Calculations from fluxmaps with 1 mm binning:

DOSES FROM THE TOROID BEAMPIPE (file in pdf-format)
Report by M.N. Morev

Maps of activation in the region between the JD and the JT
(Plots by V. Hedberg from the above calculation)

Calculations from fluxmaps with 1 mm binning:

DOSES FROM THE BEAMPIPE INSIDE THE FORWARD SHIELD (file in pdf-format)
Report by M.N. Morev

Calculations from fluxmaps with 10 cm binning:

DOSES FROM THE LAR BEAMPIPE (file in pdf-format)
Report by M.N. Morev

Map of activation from the VA beampipe
(Plot by V. Hedberg from the above calculation)

Calculations from fluxmaps with 1 mm binning:

DOSES FROM THE LAR BEAMPIPE (file in pdf-format)
Report by M.N. Morev

Map of activation from the VA beampipe
(Plot by V. Hedberg from the above calculation)

DOSES FROM AN ENLARGED LAR BEAMPIPE (file in pdf-format) Report by M.N. Morev

DOSES WITH A SECTION OF THE LAR BEAMPIPE REMOVED (file in pdf-format)
Report by M.N. Morev

DOSES WITH THE LAR BEAMPIPE MADE IN ALUMINIUM
(file in pdf-format for a 0.8 + 0.8 mm thick beampipe)
(file in pdf-format for a 1.5 + 1.5 mm thick beampipe)
Report by M.N. Morev

Map of activation if the VA beampipe is enlarged, removed or made of Aluminium
(Plots by V. Hedberg from the above calculation)

Calculations after the bug was fixed but with the old SS particle fields:

DOSES WITH THE LAR BEAMPIPE MADE IN ALUMINIUM
(file in pdf-format for a 0.8 + 0.8 mm thick beampipe)
(file in pdf-format for a 1.5 + 1.5 mm thick beampipe)
Report by M.N. Morev

Calculations from fluxmaps with 1 mm binning:

DOSES FROM THE ID BEAMPIPE (file in pdf-format)
V.A. Klimanov, E.I. Kulakova, M.N. Morev and V.K. Sakharov

Map of activation from the inner detector beampipe.
(Plots by V. Hedberg from the above calculation)

DOSE RATE FROM THE LAR END CAP AND BARREL CALORIMETERS (file in pdf-format)
V.A. Klimanov, E.I. Kulakova, M.N. Morev and V.K. Sakharov

Map of activation from the calorimeters in the access region between the inner detector and the LAr cal.
(Plots by V. Hedberg from the above calculation)

GEOMETRY AND MATERIAL DESCRIPTION OF THE INNER DETECTOR
Report by I. Bedajanek
(All files in doc-format)

The TRT detector
The PIXEL detector
The SCT detector

Link to the Prague activation and shielding web-page

MATERIAL DESCRIPTION OF THE PIXEL DETECTOR (file in xls-format)
Spreadsheet by M. Olcese

ESTIMATING INDUCED-ACTIVATION OF SCT BARREL-MODULES (file in ps-format)
C. Buttar, I. Dawson and A.Moraes.
Submitted to the proc. of the 7th workshop on electronics for LHC experiments, Stockholm, September 2001.

ACTIVATION DOSE RATE IN THE PIXEL DETECTOR (file in pdf-format)
Report by M.N. Morev

Map of activation from the pixel detector
(Plot by V. Hedberg from the above calculation)

DOSERATE IN THREE SELECTED POINTS AROUND THE PIXEL DETECTOR (file in pdf-format)
Report by M.N. Morev

Map of activation at the pixel patch panels
(Plot by V. Hedberg from the above calculation)

DOSERATE FROM THE INNER DETECTOR (file in pdf-format)
Report by M.N. Morev

Map of activation from the inner detector
(Plot by V. Hedberg from the above calculation)

CMS notes
"Safety aspects - chapter 17 of TP" (file in pdf)
"Neutron Induced Isotope Production On Selected CMS Elements Using Geant4" (file in pdf)
"Estimate of induced radioactivity - section 6.9.8 of ID TDR" (file in ps) (full text)
"Impact of beam-pipe geometry on radiation background in CMS" (file in pdf)
"Advanced Method of Estimating Residual Dose Rates in a Hadron Environment" (file in pdf)

Web Lectures
"Radiation Protection" - summer student lecture by G. Stevenson (index)

Other information
"Plot of the expected doserates in CMS" (file in pdf-format)
- from talk by G. Stevenson in March 2001 (calculation by M. Huhtinen)
"Plot of activation of different materials by high energy hadrons" (file in pdf-format)
- from calculation by Barbier and Morev.
"Plot of the transmission factor for gamma radiation in a lead shield" (file in pdf-format)
- from CERN/TIS-RP/90-10/CF by G. Stevenson
"A compilation of health risks" (file in pdf-format)
"Plot of comparison of specific activity from Al and Fe" (file in pdf-format)
- from measurement by Barbier at the PS.
"Comparison of doserate calculations by CMS and ATLAS for long cooling" (file in pdf-format)
"Comparison of doserate calculations by CMS and ATLAS for short cooling" (file in pdf-format)
- studies by M. Morev.

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Responsible for the content of this page is Vincent Hedberg