Paper Information

Title: 

ANALYSIS OF GROSS ALPHA, GROSS BETA ACTIVITIES AND 7BE CONCENTRATIONS IN SURFACE AIR AND STATISTICAL PREDICTION MODEL

Type: PAPER
Author(s): ARKIAN F.*,SALAHINEJAD M.,AMIDI J.
 
 *NATIONAL RADIATION PROTECTION DEPARTMENT, TEHRAN, IRAN
 
Name of Seminar: CONFRANCE ZHEOFIZIKE IRAN
Type of Seminar:  CONFERENCE
Sponsor:  ANJOMANE MELI ZHEOFIZIK IRAN
Date:  2006Volume 12
 
 
Abstract: 

MEASUREMENT OF GROSS A, GROSS B ACTIVITIES AND COSMOGENIC BERYLLIUM7 (7BE ) CONCENTRATIONS WERE MADE BOTH DAILY AND WEEKLY DURING 2001, 2002, 2003 AND 2004 FROM SAMPLES OF ATMOSPHERIC AEROSOLS FILTERED FROM THE AIR AT TEHRAN NUCLEAR RESEARCH CENTER (35O 41’ N) AND ZAHEDAN (28O 29’ N). THE DATA ARE SUFFICIENTLY NUMEROUS TO ALLOW US TO EXAMINE VARIATIONS IN TIME AND THROUGH THESE MEASUREMENTS WE HAVE ESTABLISHED ATMOSPHERE. THE AIR CONCENTRATIONS OF GROSS B AND GROSS A ACTIVITIES AND 7BE CONCENTRATION DISPLAYED A LOGNORMAL DISTRIBUTION DURING THE STUDY PERIOD. BOTH OF B ACTIVITIES AND 7BE HAVE MAXIMUM CONCENTRATIONS DURING WARM MID-YEAR MONTHS. IN THIS WORK, THE DATA ON CONCENTRATION AND METEOROLOGICAL DATA HAVE BEEN MADE USE OF IN ORDER TO DETERMINE A MODEL FOR GROSS A AND GROSS B AND 7BE, RESPECTIVELY. THE MODEL CAN BE USED TO ESTIMATE THAT PART OF THE TREND IN GROSS B AND IN 7BE LEVELS THAT CAN BE ACCOUNTED FOR BY TRENDS IN LOCAL METEOROLOGY. WE DIDN’T FIND ANY RELATION BETWEEN GROSS A AND METEOROLOGY PARAMETERS. A SATISFACTORY AGREEMENT BETWEEN THE RESULTS OF THE MODEL AND THE MEASUREMENTS WAS HIGHLIGHTED.

 
Keyword(s): 7BE CONCENTRATIONS, GROSS B ACTIVITY, GROSS A ACTIVITY, METEOROLOGY PARAMETERS
 
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