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http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/3338Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Babazadeh A.R. | - |
| dc.creator | Roshan M.V. | - |
| dc.creator | Habibi H. | - |
| dc.creator | Nasiry A. | - |
| dc.creator | Memarzadeh M. | - |
| dc.creator | Banoushi A. | - |
| dc.creator | Lamehi M. | - |
| dc.creator | Sadat Kiai S.M. | - |
| dc.date | 2002 | - |
| dc.date.accessioned | 2013-05-30T01:28:58Z | - |
| dc.date.available | 2013-05-30T01:28:58Z | - |
| dc.date.issued | 2013-05-30 | - |
| dc.identifier | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332002000100017 | - |
| dc.identifier | http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2002&volume=32&issue=1&spage=89 | - |
| dc.identifier.uri | http://koha.mediu.edu.my:8181/jspui/handle/123456789/3338 | - |
| dc.description | We have performed experimental comparative studies of the x-ray and neutron emission generated by the new Filippov-type plasma focus "Dena", (90 kJ, 25 kV, 288muF) in the pressure range of 0.6-1 torr. Time-integrated and time-resolved detectors, together with an x-ray pin-hole camera, along with a Be filter of 10mum thickness have been used. For a working gas of neon and a at insert anode, the maximum soft and hard x-rays (SXR-HXR) yield obtained was 16 V and 1.5 V/shot over a 4pi solid angle, respectively, for a charging voltage range of 16-20 kV. As for the argon gas, the similar results such as 3.5 and 2 V/shot have been found, leading to a total conversion eAciency of x-ray emission of 0.09 % (for neon) and 0.03 % (for argon) of the stored energy. These efficiencies have been improved by the employment of a conic insert anode up to 0.4% and 0.1%. With deuterium puffing gas and a at insert anode, the maximum emission yield has been found to be 2.5 V for SXR and 1 V for HXR/shot which produce an ultimate emission profile width (FWHM) of 70-90 ns for x-rays and neutrons, giving rise to a maximum neutron yield of 1.2 x 10(9). Nevertheless, the maximum yield has been increased up to 5.5 times with the conic insert anode. In order to increase the neutron yield, we have introduced a krypton admixture to the deuterium filling gas and found that, for a krypton pressure of about 0.1 torr, the neutron yield increases by a factor of 3.5 for the flat insert and 1.5 for the conic insert anodes. | - |
| dc.publisher | Sociedade Brasileira de Física | - |
| dc.source | Brazilian Journal of Physics | - |
| dc.title | X-ray and neutron emission studies in a new Filippov type plasma focus | - |
| Appears in Collections: | Physics and Astronomy | |
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