Measurement of Ionizing Radiation in the site region

Edgar Casimiro Linares (DCI-UG)Arnulfo Zepeda (CINVESTAV-IPN)

Humberto Martinez (BUAP)

• On last group trip to the site (Aug 27 2009) we (A. Zepeda, H. Martinez and E. Casimiro) took a Geiger Counter with us.

• We (rather quickly) measured the Ionizing Radiation levels at four different points along the way up the site.

Ionizing Radiation in the Site Region, ECL, AZD, HM, HAWC Meeting, IF-UNAM, 8 Sep 2009

First Point

• At the gas station just after the toll La Esperanza

Second Point

• At La Pluma

Third Point

Halfway between Pluma and the Working SiteIonizing Radiation in the Site Region, ECL, AZD, HM, HAWC Meeting, IF-UNAM, 8 Sep 2009

Four Point

at the Working SiteIonizing Radiation in the Site Region, ECL, AZD, HM, HAWC Meeting, IF-UNAM, 8 Sep 2009

The Geiger CounterRadiation Alert InspectorModel RAP RS1S.E. international Inc

Counting Rates

• We have considered intervals of 300 sec.• At the four measuring points e have put the

Geiger with the sensitive window looking up.• At point One and Four we have additionally

taken measurements with the Geiger sensitive window looking down.

Green: Geiger window looking down

Conclusions and Comments

• We clearly see an increase on the Counting Rate as we go up.

• The rates are consistent whether the sensitive window looks up or down.

• Accumulate more statistics next time.• Find out height asl at the different points.

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