Sains Malaysiana 52(11)(2023): 3239-3251

http://doi.org/10.17576/jsm-2023-5211-16

 

Soft X-Ray Spectra of High Temperature Argon Plasma for Potential Cell Treatment

(Spektrum X-Ray Lembut Plasma Argon Suhu Tinggi untuk Rawatan Sel Berpotensi)

 

POH HUN SENG1, YAP SEONG LING1,*, TEOW SIN YEANG2,3, TAN HAN YI1 & YAP SEONG SHAN4

 

1Plasma Technology Research Centre, Department of Physics, Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia

2Department of Biology, College of Science, Mathematics, and Technology, Wenzhou-Kean University, Ouhai, Wenzhou, China 325060

3Department of Biological Sciences, College of Science, Mathematics, and Technology, Kean University, Union, New Jersey 07083

4Department of Physics, Xiamen University Malaysia, 43900 Sepang, Selangor, Malaysia

 

Diserahkan: 14 September 2023/Diterima: 24 Oktober 2023

 

Abstract

A plasma pinch is created when the current sheath collapses onto the axis in a plasma focus discharge. The plasma focus produces a high temperature and high density plasma, emitting soft x-ray with energy in the range of kiloelectronvolt. The soft x-ray is suitable for the radiography of biological samples, or as the source for microscopy or absorption spectroscopy of tissues which are not visible to conventional x-ray. Similar sources are available only from synchrotron radiation facilities with fairly low brightness. The argon plasma pinch produced by a plasma focus was investigated. The x-ray spectra was resolved with a set of filtered detector for the range of 1 to 20 Å. The plasma electron temperature measured was within 3 keV to 10 keV, with typical plasma density of 1019/cm3. The discharge energy of 1.5 to 2.5 kJ at 1 mbar argon measured a peak current of 95 kA to 122 kA, and total soft x-ray energies of 22 to 52 J.

 

Keywords: Argon plasma; plasma focus; plasma pinch; soft x-ray; x-ray spectra

 

Abstrak

Jepitan plasma dihasilkan apabila sarung semasa runtuh ke paksi dalam nyahcas fokus plasma. Fokus plasma menghasilkan suhu tinggi dan plasma ketumpatan tinggi, memancarkan sinar-x lembut dengan tenaga dalam julat kiloelektronvolt. Sinar-x lembut sesuai untuk sampel biologi radiografi atau sebagai sumber untuk mikroskopi atau spektroskopi penyerapan tisu yang tidak boleh dilihat oleh sinar-x konvensional. Sumber yang sama hanya tersedia daripada kemudahan sinaran sinkrotron dengan kecerahan yang agak rendah. Jepitan plasma argon yang dihasilkan oleh fokus plasma telah dikaji. Spektrum sinar-x telah diselesaikan dengan satu set pengesan yang ditapis untuk julat 1 hingga 20 Å. Suhu elektron plasma yang diukur adalah dalam lingkungan 3 keV sehingga 10 keV dengan ketumpatan plasma biasa 1019/cm3. Tenaga nyahcas 1.5 hingga 2.5 kJ pada 1 mbar argon mengukur arus puncak 95 kA hingga 122 kA dan jumlah tenaga sinar-x lembut 22 hingga 52 J.

 

Kata kunci: Argon plasma; fokus plasma; jepitan plasma; spektrumsinar-x; sinar-x lembut

 

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*Pengarang untuk surat-menyurat; email: yapsl@um.edu.my

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

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