Continuous radiation from a dense, weakly non-ideal, argon plasma

The integralNHof neutral-hydrogen density along the line of sight is determined from the Kootwijk and Sydney surveys. The run ofNHwith galactic longitude agrees well with that of thermal continuous radiation and that of the optical surface brightness of the Milky Way.

Download Full-text

The efficacy and safety of argon plasma coagulation in the management of polyps remnants in stomach and colon

Gastroenterology ◽

10.1016/s0016-5085(01)81276-2 ◽

2001 ◽

Vol 120 (5) ◽

pp. A258-A258

Author(s):

B NENEMAN ◽

G BOMBSKI ◽

E MALECKAPANAS

Keyword(s):

Argon Plasma Coagulation ◽

Argon Plasma ◽

Efficacy And Safety ◽

Plasma Coagulation

Download Full-text

Endoscopic mucosal resection for recurrent gastric antral vascular ectasia

VASA ◽

10.1024/0301-1526.37.3.289 ◽

2008 ◽

Vol 37 (3) ◽

pp. 289-292 ◽

Cited By ~ 5

Author(s):

Katsinelos ◽

Chatzimavroudis ◽

Katsinelos ◽

Panagiotopoulou ◽

Kotakidou ◽

...

Keyword(s):

Endoscopic Mucosal Resection ◽

Argon Plasma Coagulation ◽

Argon Plasma ◽

Deficiency Anemia ◽

Gastric Antral Vascular Ectasia ◽

Therapeutic Approaches ◽

Plasma Coagulation ◽

Vascular Ectasia ◽

Mucosal Resection ◽

First Case

Gastric antral vascular ectasia (GAVE) is an overt or occult source of gastrointestinal bleeding. Despite several therapeutic approaches have been successfully tested for preventing chronic bleeding, some patients present recurrence of GAVE lesions. To the best of our knowledge, we report the first case, of a 86-year-old woman who presented severe iron-deficiency anemia due to GAVE and showed recurrence of GAVE lesion despite the intensive argon plasma coagulation treatment. We performed endoscopic mucosal resection of bleeding GAVE with resolution of anemia.

Download Full-text

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

The European Physical Journal Applied Physics ◽

10.1051/epjap/2020200258 ◽

2020 ◽

Vol 92 (2) ◽

pp. 20701

Author(s):

Bo Li ◽

Xiaofeng Li ◽

Zhifeng Zhu ◽

Qiang Gao

Keyword(s):

Femtosecond Laser ◽

Spatial Resolution ◽

Laser Induced Breakdown Spectroscopy ◽

Nanosecond Laser ◽

Breakdown Threshold ◽

Powerful Technique ◽

Breakdown Spectroscopy ◽

Continuous Radiation ◽

Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

Download Full-text