IBIC2020 - List of Authors (Gangwar, R.K.)

Paper	Title	Page
THPP21	Design and Development of a Novel Stripline Fast Faraday Cup to Measure Ion Beam Profile	246
	A. Sharma, R.K. Gangwar IIT (ISM), Dhanbad, Jharkhand, India B.K. Sahu IUAC, New Delhi, India
	Present day heavy ion accelerators use bunched ion beams of sub-nanosecond time scale for beam acceleration. In order to monitor its longitudinal profile, fast faraday Cups are employed. Owing to the advent of microstrip technology and its fabrication process, planar structures have become easier to fabricate. A novel design using the same is developed with a special provision for mounting edge launch connectors through a microstripline, followed by a microstrip to stripline transistion to again a microstrip structure in the beam interaction hole. The entire structure is a 50 Ω & is bidirectional. An experimental study on via placement around central strip has also been conducted to not only ensure the field containment around the strip but also for bandwidth enhancement. To measure ion beam currents from 10-100 nA and a bunch width of < 1ns, device has been beam interaction hole of around 10mm. 3 dB bandwidth is measured >6 GHz with a rise time of ~60 ps. The devices are also provided with a bias ring on the topmost layer of the 3 layer architecture for electron suppression. In this paper, design, fabrication and RF testing stripline fast faraday cup is presented. 1. M. Bellato et al, "Design and tests for the Fast Faraday cup of ALPI post-accelerator", NIM A 2. C. E. Deibele, "Fast Faraday Cup with High Bandwidth", US Patent no. 7012419B2.
	Poster THPP21 [0.912 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-THPP21
About •	paper received ※ 02 September 2020 paper accepted ※ 18 September 2020 issue date ※ 30 October 2020
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Design and Development of a Novel Stripline Fast Faraday Cup to Measure Ion Beam Profile

246

A. Sharma, R.K. Gangwar
IIT (ISM), Dhanbad, Jharkhand, India
B.K. Sahu
IUAC, New Delhi, India

Present day heavy ion accelerators use bunched ion beams of sub-nanosecond time scale for beam acceleration. In order to monitor its longitudinal profile, fast faraday Cups are employed. Owing to the advent of microstrip technology and its fabrication process, planar structures have become easier to fabricate. A novel design using the same is developed with a special provision for mounting edge launch connectors through a microstripline, followed by a microstrip to stripline transistion to again a microstrip structure in the beam interaction hole. The entire structure is a 50 Ω & is bidirectional. An experimental study on via placement around central strip has also been conducted to not only ensure the field containment around the strip but also for bandwidth enhancement. To measure ion beam currents from 10-100 nA and a bunch width of < 1ns, device has been beam interaction hole of around 10mm. 3 dB bandwidth is measured >6 GHz with a rise time of ~60 ps. The devices are also provided with a bias ring on the topmost layer of the 3 layer architecture for electron suppression. In this paper, design, fabrication and RF testing stripline fast faraday cup is presented.
1. M. Bellato et al, "Design and tests for the Fast Faraday cup of ALPI post-accelerator", NIM A
2. C. E. Deibele, "Fast Faraday Cup with High Bandwidth", US Patent no. 7012419B2.

Poster THPP21 [0.912 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-THPP21

About •

paper received ※ 02 September 2020 paper accepted ※ 18 September 2020 issue date ※ 30 October 2020

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)