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X-Rays Response of Diamond Detectors Constructed Using Diamond Layers Produced by Low Power Microwave Chemical Vapor Deposition Reactor

100%

Kordyasz A., Bednarek A., Kowalczyk M., Tarasiuk J., Kulczycka E., Teodorczyk M., Gajewski M., Kordyasz Ł., Rowiński O., Lamparski K., Karwański Ł., Lipczewski T.

Acta Physica Polonica A

2015

vol. 127

issue 5

1555-1559

The low power reactor for microwave chemical vapor deposition process is described. The rotating Mo holder of 12 mm diameter and 6 mm height with the diamond substrate was heated by 2.45 GHz microwaves to temperature about 800°C in the range of (1.5-7)% CH_{4}/H_{2} mixture to create plasma at pressure 70 Tr. Stabilization of the holder temperature was performed by optical observation of radiation from the holder followed by adjusting of the magnetron power. Diamond detectors are produced using microwave chemical vapor deposition process grown on single crystal diamond high pressure high temperature Sumimoto substrates, [100] oriented. The response of diamond detectors for X-rays has been measured in the current mode using medical X-rays tube. The linear response of the diamond detector current versus X-ray tube current (dose) is presented.

From Light to Heavy Nuclear Systems, Production and Decay of Fragments Studied with Powerful Arrays

53%

Casini G., Morelli L., Barlini S., Piantelli S., D'Agostino M., Baiocco G., Marchi T., Abbondanno U., Ademard G., Appannababu S., Bini M., Bonnet E., Borderie B., Bougault R., Bruno M., Chbihi A., Cinausero M., Degerlier M., Fabris D., Frankland J., Gelli N., Gramegna F., Gruyer D., Gulminelli F., Kordyasz A., Kozik T., Kravchuk V., Kulig P., Le Neindre N., Lopez O., Maurenzig P., Olmi A., Pasquali G., Pârlog M., Poggi G., Rivet M., Rosato E., Sosin Z., Spadaccini G., Stefanini A., Twarog T., Valdrè S., Vient E., Raduta A.

Acta Physica Polonica A

2015

vol. 127

issue 5

1548-1551

Reactions between heavy-ions at various energy regimes produce many nuclear fragments which can be populated in highly excited states. The study of these fragments, detected at the end of their particle decay, is important to investigate nuclear forces and structure effects. In recent years there have been many efforts to extend these studies towards the drip-lines, i.e. to systems far from the β-stability valley, by using accelerated radioactive beams. The development of such infrastructures is accompanied by the development of more powerful detectors and associated electronics, capable to identify ions with very different sizes and kinetic energies. Here we give two examples which show how advanced arrays can contribute to the studies on nuclear phenomena. The examples come from the European FAZIA collaboration and from recent campaigns with the GARFIELD apparatus, the latter in operation at the INFN Legnaro Laboratory (Italy) where the SPES RIB facility is under construction.

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X-Rays Response of Diamond Detectors Constructed Using Diamond Layers Produced by Low Power Microwave Chemical Vapor Deposition Reactor

From Light to Heavy Nuclear Systems, Production and Decay of Fragments Studied with Powerful Arrays