TY - JOUR
T1 - Electromagnetic shower profile measurements in iron with 500 MeV electrons
AU - Akchurin, N.
AU - Ayan, A. S.
AU - Conan, N.
AU - Dumanoǧlu, I.
AU - Fontaine, A.
AU - Merlo, J. P.
AU - Muller, A.
AU - Rinolfi, L.
N1 - Funding Information:
We thank Marc Tavlet for illuminating discussions in dosimetry, and the PLI operation team for running the LEA facility with efficiency. This work was supported in part by the US Department of Energy and the Scientific and Technical Research Council of Turkey, TUBITAK.
PY - 2001/10/1
Y1 - 2001/10/1
N2 - The longitudinal and lateral shower profiles for 500 MeV electrons in iron are studied using dosimetry and activation techniques. The results are compared with Monte Carlo simulations and other previously published data. The agreement between the data and the EGS4 simulation results is good; a simple shower profile parametrization of type kzα-1exp(-βz) does not represent the experimental data well at and around the shower maximum. The differences observed in the activation and dose profiles clearly show the role of photons in electromagnetic showers. The photon fraction increases as the shower develops deeper and they carry a larger energy fraction farther into the absorber. Photodisintegration reactions are responsible for the activation of the iron and we identified Mn54,Fe53 and Mn56 as more active isotopes among several others. These studies were performed for estimating the dose and its profile for the CMS quartz fiber calorimeter radiation dama ge work performed at LIL (CERN).
AB - The longitudinal and lateral shower profiles for 500 MeV electrons in iron are studied using dosimetry and activation techniques. The results are compared with Monte Carlo simulations and other previously published data. The agreement between the data and the EGS4 simulation results is good; a simple shower profile parametrization of type kzα-1exp(-βz) does not represent the experimental data well at and around the shower maximum. The differences observed in the activation and dose profiles clearly show the role of photons in electromagnetic showers. The photon fraction increases as the shower develops deeper and they carry a larger energy fraction farther into the absorber. Photodisintegration reactions are responsible for the activation of the iron and we identified Mn54,Fe53 and Mn56 as more active isotopes among several others. These studies were performed for estimating the dose and its profile for the CMS quartz fiber calorimeter radiation dama ge work performed at LIL (CERN).
KW - Dosimetry
KW - Electromagnetic shower development
KW - Quartz fiber calorimeter
KW - Radioactivity
UR - http://www.scopus.com/inward/record.url?scp=0035479275&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(01)00796-3
DO - 10.1016/S0168-9002(01)00796-3
M3 - Article
AN - SCOPUS:0035479275
SN - 0168-9002
VL - 471
SP - 303
EP - 313
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 3
ER -