Photo-Spectro-Metric Study of CR- 39 Detectors Irradiated with Heavy Ions

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N. Ali
M. A. Iqbal
E. U. Khan
N. Ahmad
S. M. Abbas

Abstract

The fission fragments and heavy ions tracks in CR-39 detectors registered by Cf-252 radioactivesource have been observed by using photo-spectrometric techniques. CR- 39 detectors were exposedat 5 cm distance from radioactive source for registering nuclear tracks created by nuclear particlesemitted from Cf-252 radioactive source. Cr-39 detectors were etched in 6N NaOH solution at 70oCfor 400 minutes in the intervals between 20 to 25 minutes. The etching properties of CR-39, irradiatedby ultra violet radiation has been examined. In un-etched condition, it is found that the transmittanceis nearly 95% and in etched condition the transmittance decreases up to 72% due to the change intrack densities inside CR-39 foils.

Article Details

Section
Polymer Engineering and Chemical Engineering, Materials Engineering, Physics, Chemistry, Mathematics

References

World Bank., “Country Water Resources Assistance Strategy: Water Economy: Running Dry”, (2005)34081-PK.

World Bank., “Pakistan strategic country environmental assessment”, (2006)36946-PK.

WAPDA, “ Need for Kalabagh Dam”, (2011) [Available at: http://www.wapda.gov.pk/pdf/kbdam.pdf]

Suttinon. P, Bhatti. M.A, and Nasu. S., Industrial and household water demand management: A case study of Pakistan. (2009) [Available at: http://management.kochitech.ac.jp/PDF/ssms2009/sms09_171.pdf]

http://www.just-drinks.com/comment/commentsoft-drinks-water-refreshment-inafghanistan_id104058.aspx, accessed 21 Octber,2012)

Oktay, S. “Improving the wastewater management for a beverage industry with inplant control” (2006) [Available at:http://www.sciencedirect.com/science/article/ pii/S0011916407002056]

UNEP., “Water saving fact sheet, Beverage Industry’’(2002) [Available at: http://pdf.aigroup.asn.au/environment/7082_WP A_fact_sheet_BEVERAGE.pdf, accessed 24 Octber,2012]

Morrow, R.S and Quinn, C.M., “Carbonated Beverages” (2004) [Available at: http://www.scribd.com/doc/30115984/Carbonate d-Beverages, accessed 23 Octber,2012]

“Water reuse benchmarking in the beverage industry”, Trends and Observation , BIER, (2010), [http://bieroundtable.com/files/ BIER% 20Benchmarking%20Publication%202011.pdf, (accessed on 21 Octber,2012)]

Krishna, H. J “The Texas Manual On Rain Water Harvesting”, 3rd Edition (2005). [Available at: http://www.twdb.state.tx.us/publications/reports/ rainwaterharvestingmanual_3rdedition.pdf]

“Sustainability Review” The Coca-Cola Company, 2008/2009 [Available at: http://www.thecoca-colacompany.com/ citizenship/pdf/2008-2009_sustainability review.pdf, accessed 24 Octber,2012]

“Water stewardship” Pepsico. (2010), [Available at:http://www.pepsico.com/Download/PepsiCo_ Water_Report_FNL.pdf]

National Award for excellence in water management, ‘’ A study of Pepsico Palakkad_Kerala_2008’’, CII (2008), Hyderabad.

Visvanathan, C. and Hufemia, A., “Exploring zero discharge potential for the sustainability of a bottle washing plant”, Water Science Technology 35(9) (1997) 181-190.

National environmental quality standards (NEQS) for liquid effluents, Government of Pakistan (GOP), (2000). [Available at: http://www.environment.gov.pk/smart/site/NEQ S/SRO549%20I2000-NEQS.pdf]

Asif, M; Conservation of Water Resources and Performance Evaluation of Wastewater Treatment Facility in a Beverage Industry, M.Sc. thesis, Institute of Environmental Engineering and Research, University of Engineering and Technology, Lahore(2012),.

Standard Methods for the Examination of Water and Wastewater 1998- 20th edition, American Public Health Association, American Water Works Association/Water Environment Federation, Washington DC, USA.