Sub: Good news about Indus-1
From : A.D.Ghodke of Beam Physics Section, CAT
Date: 12.4.1999
A bright >Synchrotron light was observed in INDUS-1 storage ring on April 12, 1999, with circulated beam current of 300 microamps with three booster pulses stacked in INDUS-1
UPDATE 1:
Date: Fri, 23 Apr 1999 07:33:41 +0530 (IST)
From: "P.K. Nema" [pknema@rrcat.gov.in]
During commissioning experiments last night, the INDUS-1 storage ring could be filled up to 4 mA electron beam current.
The beam life-time was 12 minutes at low beam current a few days ago but yesterday it fell to 1-2 minutes. Apparently, it was so due to the expected phenomenon of "photo-desorption".
We expect to get better performance in further commissioning experiment over next few days.
UPDATE 2:
Date: Tue, 27 Apr 1999 08:57:11 +0530 (IST)
We could obtain improved
machine performance of storage ring without major problems. Last
night it could be 10.5 mA without using steering and sextupole magnets or
trim coils etc. The 10^-9 mbar ring vacuum rises to low range in 10^-7
when
we go above 5-6 mA, and this may be restricting further beam storage.
The
average beam life time (1/e) at higher current is around 12 min. and ~30
min. at low current.
UPDATE 3:
As of now, it has been possible to accumulate up to 16 mA electron beam
current in the SRS ring. In general, max. beam storage is increasing by
average of one mA per day..!!
From: "P.K. Nema"
Date: Friday, 30 April 1999 16:28:48 +0530 (IST)
From: "P.K.Nema"